Jurnal Agrotek Tropika

THE EFFECT OF TDZ (Thidiazuron) ON THE FORMATION OF DIRECT SOMATIC EMBRYOGENESIS IN Phalaenopsis sp. ORCHID

2025-04-10T08:40:52+00:00

Orchids (Phalaenopsis sp.) are among the most valuable ornamental plants due to their wide range of flower colors and high commercial demand. However, conventional propagation methods are often inefficient for large-scale production, necessitating the optimization of tissue culture techniques for rapid and uniform clonal propagation. The use of appropriate plant growth regulators, particularly thidiazuron (TDZ), is crucial for enhancing somatic embryogenesis—a key pathway for orchid micropropagation. This study aimed to determine the optimal concentration of TDZ for inducing somatic embryogenesis in Phalaenopsis sp. through histological analysis and scanning electron microscopy (SEM) observations. A completely randomized design was employed using Murashige and Skoog (MS) medium supplemented with four TDZ concentrations (1, 3, 5, and 7 mg/L). Leaf explants of Phalaenopsis sp. served as the explant source. The results demonstrated that direct somatic embryogenesis successfully occurred from leaf explants across treatments. Among the tested concentrations, 5 mg/L TDZ produced the most effective response, resulting in the highest somatic embryo formation rate (32%) and the shortest time to embryo maturation (37 days after culture initiation). The embryos exhibited characteristic dark green coloration and a crumbly texture. These findings highlight the pivotal role of TDZ in promoting somatic embryogenesis in Phalaenopsis sp., providing a reliable protocol for efficient orchid propagation. The study contributes to the advancement of orchid biotechnology by offering histological and ultrastructural evidence that supports the optimization of clonal propagation systems for commercial and conservation purposes.

GROWTH AND PHYSIOLOYCAL CHARACTERIZATION OF Coleus amboinicus Lour EX VITRO RESULTS OF POLYPLOID INDUCTION

2025-07-09T04:57:34+00:00

Torbangun (Coleus amboinicus L.) is a local Indonesian medicinal plant traditionally used to promote breast milk (ASI) production. However, its propagation is limited because flowering is inhibited under unfavorable climatic conditions, and vegetative propagation through stem cuttings results in low genetic diversity. Increasing genetic variability through induced mutation and polyploidization offers a promising approach for crop improvement. To date, there has been no report on the morphological and physiological characterization of Torbangun polyploids induced by oryzalin. Therefore, this study aimed to evaluate the morphological and physiological characteristics of Torbangun clones derived from oryzalin-induced polyploidization. The plant materials consisted of six Torbangun clones (332Z, 332O, 333M, 333F, 513K, and 513W) obtained from the fifth subculture after exposure to 60 µM oryzalin for 72 hours. The experiment employed a completely randomized design (CRD) with one factor (clone) and eight replications, each represented by one plantlet per polybag. Growth parameters observed for 12 weeks included viability (%), plant height (cm), number of leaves, and number of axillary buds. Data were analyzed by ANOVA, followed by Duncan’s test for mean separation. Ploidy levels were verified using ex vitro flow cytometry. The results showed that clone 513W exhibited superior growth performance with the highest number of leaves, axillary buds, and chlorophyll and carotenoid contents. Qualitatively, induced and control plants displayed similar morphological traits, but quantitative differences were observed in leaf thickness and area. These findings provide the first comprehensive characterization of oryzalin-induced Torbangun polyploids, offering insights for future breeding and conservation efforts.

MORPHOLOGICAL CHARACTERIZATION AND PHYTOCHEMICAL ANALYSIS OF RATNA FLOWER PLANT (Gomphrena globosa) PINK PHENOTYPE IN SIBANGGEDE AND PADANG GALAK AREAS

2025-06-22T05:39:44+00:00

The Ratna flower (Gomphrena globosa L.), commonly known as globe amaranth, is widely used as an ornamental plant, natural tea ingredient, food coloring, and traditional medicine due to its various health benefits. In Bali, this flower also holds important cultural value as an offering in ceremonies and sacred dances. Despite its diverse uses, studies on the morphological and phytochemical diversity of G. globosa accessions across different growing regions remain limited. This study aimed to characterize the morphological traits and analyze the phytochemical composition of pink-flowered Ratna accessions collected from two regions, Sibanggede and Padang Galak. The research was conducted from October to December 2023. Sampling areas were determined using an exploratory method with purposive sampling, and plant samples were collected using a simple random sampling approach. The findings revealed distinct morphological variations in leaf and stem surfaces between accessions from the two locations. Phytochemical analysis showed qualitative and quantitative differences in chemical composition. The Sibanggede accession contained major compounds such as phytol, ethyl ester, and hexadecanoic acid—known for their antioxidant, anticancer, and antibacterial properties. In contrast, the Padang Galak accession was dominated by compounds including 2(4H)-Benzofuranone and thiourea, which exhibit antiarthritic and anticancer activities. These morphological and phytochemical differences are likely influenced by environmental factors affecting plant development and secondary metabolite synthesis. Overall, this study provides baseline information for the cultivation and utilization of Ratna flower in pharmaceutical, cosmetic, and ethnobotanical applications.

THE EFFECTIVENESS OF LECANICILLIUM LECANII, BETEL LEAF EXTRACT AND COPPER OXIDE TO CONTROL RUST DISEASE ON COFFEE LEAF DISCS IN THE LABORATORY

2025-09-24T06:53:54+00:00

The coffee industry is still impacted by the leaf rust disease caused by Hemileia vastatrix B. et Br. Coffee plants are damaged and money might be lost as a result. The purpose of this study was to observe the effects of copper oxide, betel leaf extract, and the fungus Lecanicillium lecanii on lab-grown coffee leaf discs in terms of disease control, namely coffee leaf rust. To measure efficacy, coffee leaf discs were used. In a completely randomized design (CRD), four treatments were used with five replicates for this experiment. The treatments that were used were L lecanii, betel leaf extract, copper oxide, and a control group. Observed parameters on coffee leaf discs were incubation length, sickness incidence, and disease severity. For data assessment, we utilized Barlett's test, and for data additiveness, we used Tukey's test. After analyzing the data using ANOVA, Duncan's Multiple Range Test was conducted at the 5% level. Results showed that L lecanii, copper oxide, and betel leaf extract may all extend the incubation period. In the betel leaf extract group, signs of coffee leaf rust disease appeared 14 days after inoculation (DAI), in the copper oxide group, 21 days after inoculation (DAI), and in the control group, 5 days after inoculation (DAI). In addition, L lecanii, betel leaf extract, and copper oxide significantly reduced the frequency of sickness and the severity of rust disease on coffee leaf discs in the lab 1-4 weeks after inoculation (WAI).

FUNGICIDE SENSITIVITY OF XYLARIA ISOLATES ASSOCIATED WITH ROOT AND BASAL STEM ROT OF SUGARCANE

2025-10-01T06:09:08+00:00

Root and basal stem rot is one of important diseases in sugarcane plantations in South Sumatra and Lampung. This disease is caused by Xylaria sp. The study is aimed to determine the fungicides sensitivity of Xylaria sp. which is associated with root and stem rot disease of sugarcane. The Xylaria sp. was isolated from the stroma and diseased sugarcane stems obtained from PT Gunung Madu Plantations (GMP). The fungicides used were plant base fungicides (puyangan and jamuan) and synthetic fungicides (carbendazim, mancozeb, and chlorothalonil). The Xylaria sp. sensitivity test was carried out by the poison food technique. The doses used are; puyangan and jamuan (10 g/100 mL), carbendazim (2 g/L), mancozeb (3 g/L), and chlorothalonil (1 g/L). The rate of sensitivity change of Xylaria sp. on fungicides was test by subculturing the Xylaria sp. in media containing fungicides at a dose of 9 g/100mL (puyangan and jamuan), 0.1 g/L (carbendazim), and 0.5 g/L (mankozeb) three times. The results showed that the Xylaria sp. which is associated with root and basal stem rot disease of sugarcane is still very sensitive to fungicides puyangan, jamuan, carbendazim, and mancozeb at recommended doses, but is very resistant to chlorothalonil on 2x the recommended dose. The results of the rate of change in sensitivity of Xylaria sp. to fungicides showed that isolate A tended to change more quickly compared to isolate B and isolate C.

SOIL FERTILITY AND QUALITY STATUS FOR BALANCED FERTILIZATION-BASED AGRICULTURAL LAND MANAGEMENT IN MENDOYO DISTRICT

2025-01-11T07:54:35+00:00

Soil fertility and quality have declined due to conventional farming practices that neglect fertilization. To restore soil fertility and quality, an evaluation is being conducted to determine balanced fertilization doses. This research aims to identify the soil fertility and quality status in the Mendoyo Subdistrict so as to provide recommendations for balanced fertilization in specific agricultural areas. The methods used were surveying and laboratory soil testing. The results demonstrated that the Mendoyo Subdistrict exhibited a combination of moderate and high soil fertility levels. The soils with moderate status were located in HLU (Homogeneous Land Units) I, II, V, VIII, IX, and X, while the those with high ones were located in HLU III, IV, VI, and VII. Moreover, the subdistrict exhibited varying levels of soil quality, ranging from poor to moderate, good, and very good. The poor-quality soil was located in HLU I, the good ones were located in HLU II, III, and IV, and the very good ones were located in HLU V, VI, VII, VIII, IX, X. The limiting factors in this research included texture, C-organic, nutrients (N, P, and K), and C-biomass. Meanwhile, the advanced regression and correlation tests indicated that C-organic was the most influential factor in determining soil fertility and quality, thus resulting in a recommended organic fertilizer dose of 2 t ha^-1 for rice (Oryza sativa L), 15 kg plant^-1 th^-1 for cocoa (Theobroma cacao L) and robusta coffe (Caffea canephora), and 10 t ha^-1 for coconut (Cocos nucifera) and banana (Musa paradisiaca L). Inorganic fertilizer doses vary depending on the soil's N, P, and K content.

EFFICACY OF GLYPHOSATE ISOPROPYLAMINE HERBICIDE 525 G/L ON WEED CONTROL IN IMMATURE OIL PALM PLANTATIONS

2025-09-24T06:40:07+00:00

The presence of weeds in immature oil palm plantations needs to be controlled, otherwise it results in competition with the main crop. Herbicide active ingredients, especially glyphosate, are widely used to reduce weed growth in oil palm plantations.. This study aimed to determine the dose of isopropylamine glyphosate herbicide that effectively controls weeds in oil palm plantations, changes in weed composition, and phytotoxicity due to the application of isopropylamine glyphosate herbicide in immature oil palm plantations. This trial was conducted in Oil Palm Plantation, Karang Anyar Village, Jati Agung District, South Lampung Regency and Weed Laboratory, Faculty of Agriculture, University of Lampung, September - December 2022. The trial was conducted using a randomized block design (RBD) with 4 replications and 6 treatments, namely several dose levels of isopropylamine glyphosate herbicide (787,5; 1.050; 1.312,5; and 1.575 g ha^-1), mechanical weeding, and untreatment. Homogeneity of data variance was tested with Bartlett's test, additivity of data was tested with Tukey's test, and differences in treatment mean values were tested with the Least Significant Difference (LSD) test at the 5% level.The trial showed that isopropylamine glyphosate herbicide doses of 787,5 - 1.575 g ha^-1 effectively controlled total weeds, grasses (Axonopus compressus and Ottochloa nodosa), and sedge (Cyperus kyllingia), as well as broad leaves (Asystasia gangetica and Melastoma affine) at dose levels of 1.312,5 and 1.575 g ha^-1 at (4, 8, and 12) week after application, isopropylamine glyphosate herbicide doses of 787,5 - 1.575 g ha^-1 caused changes in weed composition, and did not cause poisoning of immature oil palm plants after being applied to the crop disk until 12 week after application.

PHENYLALANINE-INDUCED MODULATION OF CALLUS CHARACTERISTICS AND SECONDARY METABOLITE ACCUMULATION IN Ocimum basilicum L. UNDER IN VITRO CONDITIONS

2025-06-26T06:28:12+00:00

Basil (Ocimum basilicum L.) is widely used in traditional medicine due to its rich content of phenolic and flavonoid compounds. However, the natural production of these metabolites is limited. Callus culture offers a controlled method to enhance their accumulation, with medium composition, particularly precursor supplementation, playing a critical role. Phenylalanine, an aromatic amino acid, is a key precursor in the biosynthesis of phenolics and flavonoids via the shikimate pathway. This study aimed to evaluate the effect of phenylalanine on callus growth and the accumulation of total phenolic and flavonoid compounds in basil. The experiment was conducted at the Plant Tissue Culture Laboratory, Faculty of Agriculture, Universitas Padjadjaran, using Murashige and Skoog (MS) medium with phenylalanine concentrations of 0, 1.3, 1.6, and 2 g.L^-1, each replicated six times. Results showed that phenylalanine treatments caused brown coloration, compact callus texture, and inhibited growth, as indicated by reduced fresh and dry weights. The 1.6 g.L^-1 treatment produced the highest total phenolic content, while the 2 g.L^-1 treatment yielded the highest flavonoid content. These findings suggest that phenylalanine can enhance secondary metabolite accumulation in basil callus, although it may suppress biomass growth.

EFFECTIVENESS OF KAFFIR LIME (Citrus hystrix D.C.) AND BASIL (Ocimum sanctum L.) LEAF POWDER ON Callosobruchus chinensis L. (Coleoptera; Chrysomelidae) MORTALITY IN GREEN BEANS

2025-09-08T04:14:40+00:00

Storage can determine the quality of green beans, therefore, to prevent the product from being attacked by warehouse pests, good storage and packaging are needed. The main pest that attacks green beans during storage is Callosobruchus chinensis L. This study aims to test the effectiveness of kaffir lime leaves and basil against Callosobruchus chinensis L. pests and weight loss of green bean seeds attacked by C. chinensis. This study used a completely randomized design (RAL) with 4 treatments and 4 replications, namely control, kaffir lime leaves 8 g, 10 g, and 12 g, basil leaves 8 g, 10 g, and 12 g. The data obtained were analyzed using a 5% level of ANARA and then continued with a 5% DMRT test. The results obtained after 28 HSA observations were that kaffir lime leaf powder at a dose of 12 g caused the highest C. chinensis mortality and the lowest reduced the weight loss of green beans. Basil leaf powder treatment at a dose of 12 g caused the highest C. chinensis mortality and the lowest reduction in green bean weight loss for 28 HSA. This research shows that kaffir lime leaves and basil have the potential to control C. chinensis during storage.

THE APPLICATION EFFECT OF EMPTY PALM OIL BUNCH ORGANIC FERTILIZER RESIDUE AND NPK FERTILIZER IN CORN PLANTING ON SANDY SOIL

2025-09-08T02:19:14+00:00

Conditions on sandy soil aggregate stability are generally classified as weak. This is because the sandy soil itself has a low organic matter content so that only a few plants can grow on the soil. Therefore, efforts must be made to improve the aggregate stability of the soil. The way that can be done is by adding organic fertilizer of empty palm bunches and also NPK fertilizer. This research was conducted from July 2023 to March 2024 in Marga Agung Village, South Lampung Regency. This study itself was carried out by applying a Randomized Block Design consisting of 7 treatments, namely A = Control; B = 1 NPK (350 kg/ha Urea, 100 kg/ha SP-36, 75 kg/ha KCl); C = ¾ NPK; D = ¾ NPK + 2 tons/ha Organic Fertilizer; E = ¾ NPK + 4 tons/ha Organic Fertilizer; F = ¾ NPK + 6 tons/ha Organic Fertilizer; G = 1 NPK + 8 tons/ha Organic Fertilizer. Then for the observation variables themselves, which include aggregate stability, c-organic, soil texture, and soil density. The results itself was analyzed using quantitative and qualitative methods by contrasting the analysis data which are contained determination class criteria. The results indicated that aggregate stability does not have a significant effect the residue of organic fertilizer of oil palm empty fruit bunches (TKKS) and NPK fertilizer. Treatment E = ¾ NPK + ½ Organic Fertilizer has the best aggregate stability compared to other treatments.

WICK SYSTEM IN VARIOUS NUTRITION COMBINATIONS ON PAKCOY GROWTH AND YIELD

2025-04-30T02:13:11+00:00

This study aimed to examine the growth and yield of cabbage (Brassica rapa L.) plants grown in a hydroponic wick system using varying doses of AB Mix nutrients and Azolla liquid organic fertilizer (POC). POC Azolla is expected to serve as a replacement nutrient in hydroponics. In this study, a one-factorial group randomized design was used where P0: no POC Azolla nutrient and P1: AB Mix 100%; P2: POC Azolla 100%; P3: AB Mix 90% + POC Azolla 10%; P4: AB Mix 75% + POC Azolla 25%; P5: AB Mix 60% + POC Azolla 40%; P6: AB Mix 45% + POC Azolla 55%; P7: AB Blend 30% + POC Azolla 70%; P8 : AB Mix 15% + POC Azolla 85%. Three replicates of each treatment were performed. Annova was used for data analysis: Duncan's distance test should be performed at a significant level of 5% if a difference is found. The average growth variables of plant height (16.5 cm), number of leaves (18 strands), root length (18.33 cm), fresh plant weight (81.17 g) and dry plant weight (4.42 g) showed the same trend in the combination (AB Mix 75% + POC Azzola 25%), suggesting that this combination could be an alternative to the AB Mix 100% treatment. The hydroponic cultivation of the wick system on Pakcoy plants has not been able to prove the use of POC Azzola alone. The use of POC Azzola is at least able to reduce the use of AB Mix by 25%.

MORPHOLOGY, CHARACTERISTIC AND SOIL CLASSIFICATION OF PADDY FIELD IN THE PINOGU PLATEAU, BONE BOLANGO REGENCY

2025-04-28T08:27:07+00:00

Paddy fields are the main source of rice production in Pinogu District, thus supporting food security in this district, but have not been managed based on the soil properties. The diversity of morphology, characteristics, and soil classification on the Pinogu Plateau is the aim of this research. Three pedon paddy fields (IY1, IY2, and IY3) in one topososequence had their profiles described using a soil survey method at a scale of 1:5,000, including matrix color, structure, and soil consistency. Soil samples were taken from each horizon in each profile and analyzed in the laboratory for: texture (sand, clay, silt), bulk density, porosity, pH, C-organic, cation exchange capacity, base saturation, and salinity. Next, soil pedons were classified using a soil taxonomy system starting from Order level to Family level. The research results showed that the paddy fields on the Pinogu plateau had developed with the presence of horizon structuring (Ap-Bt) on the topososequences, but the paddy fields on the upper and middle slopes were more developed than the paddy fields on the lower slopes. The Pinogu Plateau was included in the isohyperthermic of soil temperature regimes and the udic of soil moisture regimes. The paddy field on the upper slopes was classified as Typic Humudepts, rather fine, active, isohyperthermic., meanwhile the paddy field on the middle slope was classified as Fluventic Humudepts, rather fine, active, isohyperthermic., and the paddy field on the lower slopes was classified as Entic Humudepts, rather fine , super active, isohyperthermic. This classification of paddy fields has implications for specific instructions for soil management, so that management of paddy fields that is in accordance with the characteristics and type of soil will increase the productivity of paddy fields in the future.

INTENSITY OF COFFEE BERRY BORER (Hypothenemus hampei) (Ferrari) ATTACKS IN SEVERAL AREAS IN BANDUNG REGENCY

2025-01-09T09:36:47+00:00

Coffee Berry Borer (CBB), Hypothenemus hampei (Ferrari) is the main pest in coffee plantations. Initially, CBB attacks were only on lowland coffee (0-700 m asl), but currently highland coffee (above 1000 m asl) is not spared from this pest attack. The purpose of this study was to examine the intensity of CBB in several coffee plantation areas in Bandung Regency. Samples were taken from three coffee-producing locations, i.e., Cilengkrang District, Cimaung District, and Pangalengan District. Sampling using brocap traps and attack intensity through direct observation of the affected fruit. The identification was conducted at the Pest Laboratory, Faculty of Agriculture, Universitas Padjadjaran. Climatic conditions were recorded during the sampling period from July 2023 to June 2024. The results showed that the level of CBB infestation in coffee plantations in Bandung Regency was relatively low, with the highest infestation in the Cilengkrang area (21.36%), followed by Cimaung (13.09%), and the lowest in Pangalengan (8.32%). The catch of CBB in the Cilengkrang area showed the largest number, an average of 974,2 individuals per trap and the ratio of male to female sex is 1:10. In coffee fruits, the most common were larvae stage, averaging 5.93 individuals per berry. Coffee berry damage was generally higher in red fruits than in yellow and green fruits, even though the damaged seeds were only partially affected. PCA analysis indicated that humidity and temperature had a significant impact on the intensity of CBB in comparison to other factors.

PEMACUAN PEMBUNGAAN TANAMAN SPATIFILUM (Spathiphyllum wallisii Regel) DENGAN PEMBERIAN ZPT BENZILADENIN (BA) DAN EKSTRAK BAWANG MERAH

2025-09-24T07:22:33+00:00

Spatifilum (Spathiphyllum walliisii Regel) yaitu tanaman hias yang mempunyai ciri-ciri bunga dengan warna putih kontras dan daun hijau tua yang membuat tanaman terlihat elok sebagai penghias ruangan. . Maka, perlu dilakukan penelitian tanaman spatifilum dengan pemberian BA dan ekstrak bawang merah untuk memberikan penampilan yang lebih lebih baik. Penelitian dilakukan untuk mengetahui pengaruh pemberian BA, ekstrak bawang merah dan interaksi dari BA dan ekstrak bawang merah pada pembungaan tanaman spatifilum. Pelaksanaan penelitian ini yaitu di Rumah Kaca Hortikultura Fakultas Pertanian Universitas Lampung pada Oktober 2023 sampai Januari 2024. Rancangan percobaan yang digunakan yaitu Rancangan Acak Kelompok (RAK) faktorial dengan tiga ulangan satu ulangan terdapat tiga pot, sebanyak 2 faktor dan tiga kelompok tanaman (3 x 2 x 3 x 3) sehingga total pot adalah 54 pot. Faktor pertama yaitu BA (0 pp dan 20 ppm) dan faktor kedua yaitu ekstrak bawang merah (0 gL^-1, 100 gL^-1, dan 200 gL^-1) diaplikasikan sebanyak 4 kali. Data dianalisis dengan uji analisis ragam (F), jika signifikan kemudian dilakukan uji Beda Nyata Terkecil (BNT) pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa konsentrasi benziladenin 20 ppm dapat meningkatkan jumlah daun, jumlah anakan, mengurangi hama dan penyakit tanaman, mempercepat waktu mekar bunga, meningkatkan ketahanan bunga, meningkatkan panjang dan lebar mahkota bunga. Pemberian konsentrasi ekstrak bawang merah 100 gL^-1 dan 200 gL^-1dapat meningkatkan kehijauan daun, mempercepat muncul anakan, menghasilkan jumlah bunga lebih banyak dibandingkan tanpa pemberian ekstrak bawang merah. Interaksi pada perlakuan benziladenin dan ekstrak bawang merah hanya terdapat pada variabel tingkat kehijauan daun.

PENGARUH APLIKASI Trichoderma sp DAN PUPUK MAJEMUK UNTUK MENEKAN PENYAKIT HAWAR DAUN DAN MENINGKATKAN PRODUKSI TANAMAN MELON (Cucumis melo L)

2025-02-05T05:03:16+00:00

Penelitian ini bertujuan untuk mengetahui pengaruh Trichoderma sp. dan pupuk majemuk terhadap penyakit hawar daun dan produksi tanaman melon (Cucumis melo L). Penelitian ini dilaksanakan dilaksanakan di laboratorium Lapang Terpadu Fakultas Pertanian, Universitas Lampung, Provinsi Lampung. Penelitian ini dilaksanakan pada bulan Mei sampai dengan bulan Agustus 2021. Rancangan yang digunakan dalam percobaan ini adalah Rancangan Acak

Kelompok (RAK) yang disusun secara faktorial. Faktor pertama adalah Trichoderma sp. yang terdiri dari 2 level yaitu tanpa Trichoderma sp (T0) dan dengan menggunakan Trichoderma sp. 20 g (T1). Faktor kedua dengan menggunkan pupuk majemuk yang terdiri dari 0 g (T0), 30 g (T1), 60 g (T2), dan 90 g (T3). Variabel yang diamati adalah keterjadian penyakit, keparahan penyakit, panjang tanaman, jumlah bunga betina, jumlah bungan jantan, diameter buah melon, dan bobot buah melon. Data pengamatan yang diperoleh dianalisis menggunakan sidik ragam dan selanjutnya diuji dengan uji BNT pada taraf 5%. Hasil penelitian bahwa Trichoderma sp. 20 g dapat menekan keparahan penyakit dan dapat meningkatkan bobot buah melon. Tidak ada interaksi antara perlakuan Trichoderma sp. 20 g dan pupuk majemuk terhadap panjang tanaman, keterjadian penyakit, jumlah bunga betina, jumlah bunga jantan dan diameter buah melon. Perlakuan pupuk majemuk 90 g dapat meningkatkan jumlah bunga betina dan meningkatkan bobot buah tanaman melon. Kemudian pada perlakuan pupuk majemuk 30 g dapat meningkatkan bobot buah tanaman melon. Terdapat interaksi antara perlakuan Trichoderma sp. 20 g dan pupuk majemuk 0 g yang dapat menekan keparahan penyakit tanaman melon. Kemudian Terdapat interaksi antara perlakuan Trichoderma sp. 20 g dan pupuk majemuk 90 g yang mampu meningkatkan bobot buah tanaman melon.

ANALYSIS OF LAND SUITABILITY FOR ROBUSTA COFFEE CULTIVATION (Coffea canephora) IN BENTENGE VILLAGE, MALLAWA DISTRICT, MAROS DISTRICT

2025-05-20T11:03:32+00:00

The ability of land with different properties, regional characteristics, and soil nutrient status to affect the productivity of coffee plants is affected, so it is important to evaluate regional characteristics and soil nutrient status so that the land suitability class for coffee plant cultivation can be known. The purpose of this study was to provide information on the extent of the level of land and climate suitability of Bentenge Village, Mallawa Subdistrict, for robusta coffee cultivation. The research was conducted from September to December 2022 in Bentenge Village, Malawa District, Maros Regency, which has been cultivating coffee, especially robusta coffee, for decades. This research method uses a survey approach and laboratory analysis, whose results are interpreted into a land suitability map. Furthermore, data on regional conditions and nutrient status in Bentenge Village were juxtaposed with good coffee cultivation guidelines in MOA No. 49 of 2014 to determine the level of land suitability for robusta coffee cultivation. The results showed that the land in Bentenge Village, Mallawa Sub-district, is suitable (S2) to marginally suitable (S3) for the development of robusta coffee cultivation..

PENGARUH APLIKASI CENDAWAN SELULOLITIK TERHADAP LAJU DEKOMPOSISI CAMPURAN SERASAH DAN BLOTONG TEBU (Saccharum officinarum L.)

2025-07-30T03:50:51+00:00

Pengembalian limbah dari perkebunan berupa serasah dan limbah pabrik berupa blotong tebu ke lahan menjadi salah satu upaya pemanfaatan limbah sebagai sumber bahan organik. Pengembalian limbah ke lahan sebagai sumber bahan organik membutuhkan waktu yang cukup lama sehingga perlu dilakukan pengomposan. Pengomposan serasah dan blotong tebu membutuhkan waktu yang lama karena kandungan selulosa, hemiselulosa, dan lignin dalam serasah tebu begitu tinggi sehingga sulit terurai. Penambahan cendawan selulolitik digunakan

untuk mempercepat proses dekomposisi karena kemampuannya dalam menghasilkan enzim pemecah substrat karbohidrat tersebut. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan cendawan selulolitik terhadap laju dekomposisi, mendapatkan satu perlakuan terbaik, dan mengetahui korelasi rasio C/N, sisa bobot, suhu, pH, dan kadar air dengan konstanta kecepatan dekomposisi. Perlakuan yang diujikan yakni (K1) kontrol, (K2) pemberian cendawan Cunninghamella sp., (K3) pemberian cendawan Trichoderma sp., dan (K4) pemberian kombinasi kedua cendawan tersebut. Percobaan perlakuan dilakukan sebanyak 4 ulangan, dan 3 kali pengamatan yang dilakukan setiap 3 pekan sekali. Hasil penelitian menunjukkan bahwa pemberian cendawan selulolitik mempercepat penurunan rasio C/N dan sisa BKO pada kompos serasah dan blotong tebu, laju dekomposisi terjadi lebih cepat pada 3 pekan pertama, dan terjadi korelasi negatif antara rasio C/N, sisa BKO dan suhu dengan konstanta laju dekomposisi (k) serta terdapat korelasi positif antara pH dan kadar air dengan konstanta laju dekomposisi (k). Perlakuan terbaik terdapat pada penambahan kombinasi cendawan Cunninghamella sp., dan Trichoderma sp.

PENGGUNAAN PUPUK ORGANIK PADA BAWANG MERAH YANG DIPUPUK NPK BERBEDA DOSIS PADA LAHAN KERING MASAM

2025-06-12T05:10:46+00:00

Budidaya tanaman bawang merah pada lahan kering masam berpotensi tinggi, walaupun keadaan pH tanah dan unsur hara rendah, dan peningkatan produktivitasnya dapat dilakukan melalui penggunaan pupuk organik kotran ayam dan pupuk NPK bersama-sama. Penelitian ini bertujuan untuk mendapatkan perlakuan terba,ik kombinasi pupuk organik dan anorganik pada pertumbuhan dan produksi bawang merah (Allium ascalonicum L.), dengan menggunakan perancangan lingkungan RAK dan perancangan perlakuan berpola faktorial dengan 9 kombinasi perlakuan yang direplikasi sebanyak 3 kali. Sebagai Faktor I. Jenis Pupuk Organik (O) yaitu tanpa (o₀), pupuk organik kotoran ayam (o₁) dan pupuk organik limbah sayuran (o₂). Sebagai Faktor II. Persentase pupuk NPK (p), yaitu 25 % (p₁), 50 % (p₂) dan 75 % (p₃). Hasil tertinggi dicapai pada kombinasi pupuk organik kotoran ayam dengan 50 % dosis pupuk NPK dengan produksi 1,76 kg/petak atau setara 7,04 ton/ha dan meningkatkan sebessar 117,28 % bila dibandingkan dengan tanpa pupuk organik dengan 25 % pupuk NPK.

PENGARUH APLIKASI KOMPOS KOTORAN SAPI DAN PUPUK PREMIUM TERHADAP RESPIRASI TANAH PADA PERTANAMAN NANAS RATOON DI LAMPUNG TENGAH

2025-10-02T05:39:36+00:00

Respirasi tanah merupakan indikator kesuburan tanah. Pupuk premium yaitu pupuk campuran dari bahan organik dan bahan amelioran. Penelitian ini bertujuan untuk mengetahui pengaruh kompos kotoran sapi dan pupuk premium terhadap respirasi tanah pada pertanaman nanas ratoon. Penelitian dilakukan di PT Great Giant Pineapple, Lampung Tengah dengan menggunakan Rancangan Acak Kelompok yang terdiri dari 4 perlakuan dan 4 ulangan. Perlakuan terdiri dari P₁ = standar budidaya nanas, P₂ = kompos kotoran sapi 100% (50 ton ha^-1), P₃ = pupuk premium A (kompos kotoran sapi 77,6% + batubara muda 9,8% + zeolit 9,8% + liquid organic biofertilizer 1,8% + vermikompos 1%), P₄ = pupuk premium B (kompos kotoran sapi 72,7% + batubara muda 14,7% + zeolit 9,8% + liquid organic biofertilizer 1,8% + vermikompos 1%). Data yang didapatkan diuji menggunakan analisis ragam pada taraf 5% yang sudah diuji homogenitas ragam menggunakan Uji Bartlett dan additivitasnya menggunakan Uji Tukey. Kemudian data diuji lanjut menggunakan Uji Ortogonal Kontras. Uji Korelasi digunakan untuk melihat hubungan antara variabel pendukung dengan variabel utama. Hasil penelitian menunjukan bahwa respirasi tanah pada pengamatan 19 BST perlakuan kompos kotoran sapi (P₂), pupuk premium A (P₃), pupuk premium B (P₄) secara nyata lebih tinggi dibandingkan dengan standar budidaya nanas (P₁), dan respirasi tanah pada perlakuan pupuk premium B (P₄) secara nyata lebih tinggi dibandingkan pupuk premium A (P₃). Terdapat korelasi positif antara biomassa C-mik tanah dengan respirasi tanah pada pengamatan 19 BST.

INCREASING CHLOROPHYLL CONTENT AND YIELD OF EGGPLANT ON VARIOUS MAGNESIUM DOSES

2025-04-29T08:45:09+00:00

Eggplant is a vegetable that is rich in vitamin and antioxidant so is beneficial for health. Base on this, demand for eggplant continues to increasing. Eggplant production can be increased by increasing the chlorophyll content with additional doses of magnesium (Mg). Mg is the main component of chlorophyll and plays an important role in various plant metabolic pathways. Puprpose of this study determine effect of Mg on increasing Chlorophyll content and its correlation with increasing eggplant yields. This research was conducted in August-Desember 2023 in the Integrated Garden Rumah Tani Nusantara located in Kayamanya Village, Poso. Central Sulawesi. This Study was designed in CRBD, treatment with 6 levels of Mg doses, namely without Mg doses as control. 0.5 g.polybag-¹, 1 g.polybag-¹, 1.5 g.polybag-¹, 2 g.polybag-¹, 2.5 g.polybag-¹ with three replications. The parameters observed were chlorophyll content ( chlorophyll a, b and Total), plant height and yield component (number of fruits, fruit weight and Fruit Length). The results showed that the Mg dose treatment increased the chlorophyll content of eggplant leaves, both chlorophyll a, b, plant height and yield components. There is a correlation between increased eggplant yields and magnesium doses.

PENGARUH OLAH TANAH DAN PEMUPUKAN N JANGKA PANJANG TERHADAP KANDUNGAN KARBON ORGANIK, NITROGEN TANAH DAN SERAPAN N SERTA PRODUKSI PADA PERTANAMAN JAGUNG DI TANAH ULTISOL TAHUN KE-34

2025-09-08T04:47:51+00:00

Ultisol merupakan salah satu jenis tanah di Indonesia yang mempunyai sebaran luas. Namun Ultisol merupakan salah satu jenis tanah di Indonesia dengan sebaran luas. Ultisol merupakan tanah yang memiliki tingkat kesuburan rendah sehingga perlu upaya perbaikan agar dapat dimanfaatkan secara optimal. Tujuan penelitian adalah mengetahui pengaruh olah tanah jangka panjang, pemupukan N, dan interaksi antara olah tanah jangka panjang, dan pemupukan N terhadap kadar C-organik tanah, N total tanah, serapan N, serta produksi tanaman jagung di Ultisol. Penelitian dilaksanakan pada 12 September 2021 – 30 Januari 2022 di Kebun Percobaan Polinela. Penelitian ini menggunakan RAK dengan 2 faktor, yaitu pemupukan nitrogen (N0 = tanpa pemupukan, N2 = pemupukan 200 kg N ha^-1), olah tanah (T1 = olah tanah intensif, T2 = olah tanah minimum, T3 = tanpa olah tanah). Data hasil penelitian sifat tanah analisis tanah awal dan akhir dilakukan untuk mengetahui kandungan N-total tanah, C-organik tanah, C/N, dan pH tanah. Analisis data tanah dilakukan secara kualitatif menggunakan kriteria penilaian hasil analisis tanah. Data Sampel tanaman berupa (produksi berat kering, basah serta serapan N tanaman) di uji dengan menggunnakan anara dan dilanjutkan dengan unji BNT 5%. Tanpa olah tanah dan tanpa pemupukan N mampu meningkatkan C-organik tanah dan N-total tanah. Serapan N brangkasan jagung tertinggi yaitu pada perlakuan olah tanah minimum. Pemupukan N tidak mampu meningkatkan kandungan C-organik, tetapi dapat meningkatkan N-total tanah. Pemupukan N mampu meningkatkan produksi berat kering total dan berat basah total tanaman serta N terangkut total. Tidak terdapat interaksi antara pengaruh pemupukan N dan olah tanah terhadap serapan N dan produksi tanaman jagung.

POTENTIAL OF TRICHODERMA AS A PRESERVATIVE FOR SHALLOT BULB AND BIOFUNGICIDE FOR SHALLOT SEEDS

2025-07-01T09:44:03+00:00

This study aims to determine the fungi that cause rotting of shallot bulbs (Allium cepa) in storage and to measure the ability of Trichoderma esperellum in preserving bulbs and protecting shallot seeds from rotting pathogens. The initial stage is to ensure the isolated pathogenic fungi with the Koch Postulate test. The next stage is the inhibition test between Trichoderma and pathogenic fungi, clove preservation, and the test of the protection ability of shallot seeds. The results showed that the cause of rot was Penicilium sp. In the in vitro test, T. esperellum was able to inhibit the growth of pathogen colonies by 61.9 ± 1.2% and increase the growth of its own colonies by 172.1 ± 10.8% respectively at 96 and 48 hours after inoculation. The application of T. esperellum suspension and filtrate suppressed bulb rot by 71.5 and 67.9% respectively in storage and increased germination by 127.8 and 122.2% compared to without Trichoderma. The use of Trichoderma filtrate can be used as an active ingredient in biopesticides for preserving cloves and protecting red onion seeds

PENGARUH KONSENTRASI ZAT PENGATUR TUMBUH ALAMI DARI EKSTRAK LIDAH BUAYA TERHADAP KEBERHASILAH PENYETEKAN JAMBU AIR (Syzygium aqueum Burm.f. Alston) VARIETAS CITRA DAN MADU DELI

2025-09-24T08:12:21+00:00

Varietas jambu air yang populer di Indonesia diantaranya Citra dan Madu Deli karena memiliki citarasa manis dan warna memikat. Salah satu metode perbanyakan jambu air untuk mendapatkan bibit unggul dan berkualitas adalah melalui penyetekan. Tujuan penelitian ini mengetahui pengaruh pemberian konsentrasi zpt dari ekstrak lidah buaya terbaik dan jenis varietas jambu air untuk keberhasilan penyetekan jambu air, serta interaksi konsentrasi ekstrak lidah buaya dengan jenis varietas terhadap keberhasilan penyetekan jambu air. Penelitian dilaksanakan pada Februari-Juni 2024 di RK Laboratorium Lapangan Terpadu, Universitas Lampung. Penelitian ini memakai RAK perlakuan faktorial (2x4). Faktor pertama adalah konsentrasi ekstrak lidah buaya 0% (K₀), 25% (K₁), 50% (K₂), dan 75% (K₃). Faktor kedua adalah varietas jambu air yang terdiri dari 2 varietas, yaitu Citra (P₁) dan Madu Deli (P₂). Setiap perlakuan diulang sebanyak 3 kali sekaligus sebagai kelompok. Homogenitas ragam menggunakan Uji Bartlett dan aditivitas dengan Uji Tukey. Data yang sudah homogen dan aditif selanjutnya dilakukan analisis ragam (Anara) dan dilakukan Uji Kontras dan Ortogonal Polinomial. Hasil penelitian menunjukkan konsentrasi ekstrak lidah buaya dapat meningkatkan pada semua variabel pengamatan, jenis varietas jambu air tidak menunjukan perbedaan pada semua variabel pengamatan, serta terdapat interaksi antara konsentrasi ekstrak lidah buaya dengan varietas pada panjang akar dan luas sebaran permukaan akar.

LAMA MASA PAJANG BUNGA POTONG SEDAP MALAM (Polianthes tuberosa L.) DALAM BERBAGAI LARUTAN PERENDAM

2025-09-29T08:47:44+00:00

Bunga potong sedap malam merupakan tanaman hias yang populer yang keindahannya dilihat dari kualitas bunga dan kesegaran bunga pada masa peragaan. Kesegaran bunga potong dipertahankan dengan pemberian larutan perendam baik larutan kimia maupun larutan organik. Penelitian ini bertujuan untuk mengetahui pengaruh larutan perendam kimia dan larutan perendam organik dalam mempertahankan kesegaran bunga potong sedap malam. Penelitian ini dilaksanakan di Laboratorium Pascapanen Fakultas Pertanian Universitas Lampung pada Februari-Maret 2024. Penelitian ini disusun dalam Rancangan Acak Kelompok (RAK) dengan perlakuan tunggal 5 jenis larutan perendam yang diulang 4 kali. Perlakuan tersebut adalah (air), (air + sukrosa 2% + 20 ppm + asam sitrat 2%), (air + sukrosa 2% + ekstrak kunyit 20%), (air + sukrosa 2% + ekstrak daun sirih 20%), dan (air + sukrosa 2% + ekstrak lidah buaya 30%). Homogenitas ragam diuji dengan Uji Bartlett dan kemenambahan data diuji dengan Uji Tukey, kemudian dianalisis dengan sidik ragam dan dilanjutkan dengan Orthogonal Kontras pada taraf 5%. Hasil penelitian menunjukkan bahwa pemberian larutan perendam berpengaruh terhadap lama masa pajang bunga, tetapi tidak berpengaruh terhadap volume larutan terserap, skor kerusakan bunga, persentase kuntum bunga layu, persentase kuntum bunga mekar, dan persentase kuntum bunga rontok. Kesegaran bunga potong sedap malam yang terlama diperoleh pada perlakuan perendam kimia kombinasi air, sukrosa, asam sitrat, dan yang masa pajangnya mencapai 7.88 hari. Larutan perendam organik yang terbaik adalah larutan ekstrak daun sirih yang masa pajangnya mencapai 7.44 hari.

RESPONS PERTUMBUHAN AKSESI KACANG KORO YANG BERASAL DARI TIGA SPECIES Canavalia spp. PADA DUA KONDISI LAHAN YANG TERPAPAR SALINITAS

2025-05-27T08:40:05+00:00

Kacang koro dari genus Canavalia dapat dimanfaatkan sebagai sumber protein alternatif yang penting untuk ketahanan pangan nasional. Pembudidayaannya dapat diarahkan pada lahan marginal yang ketersediaannya cukup luas di Indonesia. Penelitian ini bertujuan untuk melihat respon pertumbuhan berbagai aksesi kacang koro yang berasal dari tiga spesies berbeda pada dua kondisi lahan yang terpapar salinitas. Penelitian dilaksanakan pada bulan September 2023-Maret 2024 di Pantai Pasir Putih, Bungo Pasang Kota Padang. Sebanyak 5 aksesi Canavalia spp. yaitu 2 aksesi spesies Canavalia gladiata, 2 aksesi spesies C. maritima, dan 1 aksesi spesies C. cathartica ditanam di lahan dengan dua kondisi salinitas yaitu salinitas rendah (1,2 dS/m), dan salinitas sedang (3,8 dS/m). Percobaan didesain dalam Rancangan Acak Kelompok dengan masing-masing dua ulangan sehingga terdapat 20 satuan percobaan. Data dianalisis menggunakan sidik ragam gabungan (combined ANOVA) dan dilanjutkan dengan uji Duncan pada taraf nyata 5%. Analisis korelasi dilakukan untuk melihat hubungan tingkat salinitas dengan variabel pertumbuhan tanaman. Hasil penelitian menunjukkan terjadinya gangguan pertumbuhan kecuali aksesi Cm.Halmahera dan Cm.Bengkulu yang memperlihatkan respons peningkatan pertumbuhan dengan meningkatnya salinitas. Aksesi berinteraksi dengan tingkat salinitas pada pengamatan panjang batang, jumlah cabang dan diameter batang terutama pada umur 24 MST, mengindikasikan periode waktu ini ideal untuk menyeleksi aksesi yang toleran terhadap salinitas. Korelasi negatif dan kuat antara tingkat salinitas dan pertumbuhan tanaman menunjukkan bahwa peningkatan salinitas menekan pertumbuhan tanaman. Berdasarkan nilai indeks toleransi, maka aksesi Cm. Halmahera dan Cm. Bengkulu dari spesies Canavalia maritima memiliki kemampuan adaptasi yang lebih baik terhadap salinitas dibandingkan aksesi lainnya.

PERILAKU PERTUKARAN AMONIUM (NH4+), N, C TERPANEN, DAN PRODUKSI JAGUNG AKIBAT PEMBERIAN BIOCHAR DAN PUPUK KANDANG AYAM DI TANAH ULTISOL PADA MUSIM TANAM KE-3

2025-09-24T09:10:36+00:00

Kandungan nutrisi di tanah Ultisol yang sedikit dapat membuat tanah tidak subur sehingga mengakibatkan menurunnya produksitanaman jagung. Usaha yang bisa digunakan sebagai cara meningkatkan nutrisi tanah Ultisol yaitu dengan menambahkan biochar dan pupuk kandang ayam. Penelitian yang dilaksanakan ditujukan guna mempelajari efek penggunaan biochar serta pupuk kandang ayam pada pertukaran amonium (NH₄⁺), N, C terpanen, dan produksi tanaman. Penelitian yang dijalankan memakai RAK non faktorial menggunakan 4 ulangan serta 4 pengaplikasian yaitu, PPD= Pupuk dasar, PPD + BCR= Pupuk dasar + Biochar dengan takaran 5 Mg ha^-1, PPD + PKA= Pupuk dasar + Pupuk kandang ayam dengan takaran 5 Mg ha^-1, dan PPD + BCR + PKA= Pupuk dasar + Biochar + Pupuk kandang ayam dengan takaran 5 Mg ha^-1. Data dianalisis ragam serta dilanjutkan menggunakan uji BNT 5%, dilanjutkan dengan uji student-t. Selain itu, dilakukan uji korelasi untuk mengetahui korelasi antara PBC_NH4⁺, CR_NH4⁰, ΔNH₄⁰, K_G, dan KTK tanah dengan N dan C terpanen serta produksi jagung. Hasil menunjukan bahwa perlakuan biochar dan pupuk kandang ayam mengalami peningkatan daya sangga tanah (PBC_NH4⁺). Produksi jagung pada pengaplikasian pupuk kandang ayam nyata lebih tinggi daripada perlakuan lain. Nitrogen dan carbon terpanen tanaman pada pengaplikasian biochar dengan pupuk kandang ayam nyata lebih tinggi dibandingkan perlakuan lainnya. Terdapat hubungan positif antara KTK dengan C terpanen serta produksi tanaman. Tidak terdapat hubungan PBC_NH4⁺, CR_NH4⁰, ΔNH₄⁰, dan K_Gdengan N dan C terpanen, serta produksi tanaman.

KEINDAHAN TAMPILAN TANAMAN SIRIH MERAH (Piper crocatum Ruiz and Pav.) AKIBAT PEMBERIAN BENZILADENIN

2025-09-24T09:15:30+00:00

Sirih merah merupakan tanaman hias sekaligus sebagai tanaman obat yang termasuk ke dalam famili Piperaceae yang nilai keindahannya dapat dilihat dari warna daun yang menarik dan kerimbunan tanaman. Warna daun yang menarik memiliki permukaan bawah merah maroon pekat dan atas hijau bercorak perak. Untuk meningkatan keindahan tampilan tanaman sirih merah salah satunya dengan pemberian ZPT berupa benziladenin. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian benziladenin dengan berbagai kosentrasi terhadap tampilan tanaman sirih merah. Penelitian ini dilaksanakan pada bulan Mei – Desember 2023 di Rumah Kaca Hortikultura, Fakultas Pertanian, Universitas Lampung. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan perlakuan tunggal terstruktur yang terdiri dari 6 taraf konsentrasi benziladenin yaitu : 0 ppm, 5 ppm, 10 ppm, 15 ppm, 20 ppm, dan 25 ppm. Perlakuan diulang sebanyak tiga kali yang sekaligus berfungsi sebagai kelompok. Hasil penelitian menunjukkan bahwa pemberian benziladenin nyata meningkatkan jumlah tunas dan tingkat kehijauan daun secara linear. Pada variabel tinggi tunas, jumlah daun, panjang ruas, dan waktu muncul tunas pemberian benziladenin tidak menjukkan pengaruh yang nyata. Akan tetapi, pemberian benziladenin memiliki kecenderungan mampu memperbanyak jumlah daun, menekan tinggi tunas, dan memperpendek panjang ruas, terutama konsentrasi 25 ppm sehingga tampilan tanamannya menjadi lebih indah.

KOMBINASI APLIKASI PUPUK KIMIA DAN LIQUID ORGANIC BIOFERTILIZER (LOB) DALAM MENYEDIAKAN HARA Fe, Mn DAN Zn PADA TANAH SAWAH TRIMURJO, LAMPUNG TENGAH

2025-09-29T08:37:10+00:00

Pupuk menjadi faktor penting dalam produksi padi. Pemberian pupuk kimia belum cukup memenuhi hara tanaman. Oleh karena itu, aplikasi Liquid Organic Biofertilizer (LOB) diberikan sebagai upaya untuk menambah kesuburan tanah. Penelitian ini bertujuan untuk mengetahui pengaruh pupuk kimia dan LOB terhadap ketersediaan unsur hara mikro, meningkatkan pertumbuhan dan produksi padi, serta aplikasi LOB mampu mengurangi penggunaan pupuk kimia. Penelitian dilakukan di Desa Pujoasri, Trimurjo, Lampung Tengah. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 4 perlakuan dengan 3 ulangan. Kombinasi perlakuan yang diterapkan adalah dosis pupuk. Data dianalisis dengan menggunakan analisis ragam dan apabila berbeda nyata maka dilakukan uji Duncan pada taraf 5%. Penelitian menunjukkan bahwa kombinasi pupuk kimia dan LOB tidak berpengaruh nyata terhadap ketersediaan unsur hara mikro Fe, Mn, dan Zn. kombinasi pupuk kimia dan LOB berpengaruh nyata terhadap pH tanah pada 100 HST di kedalaman 10-20 cm dan C-organik tanah pada 100 HST, jumlah anakan umur 5 HST, 20 HST, 35 HST serta 100 HST, bobot brangkasan padi, bobot gabah basah, berat kering 1000 butir dan bobot produksi padi. LOB berpengaruh dalam mengurangi penggunaan pupuk kimia dengan bobot produksi padi pada P₃(7,17 t ha^-1) berbanding dengan kontrol P₀(2,42 t ha^-1).

VIABILITY RESPONSE OF SOYBEAN SEEDS (Glycine max [L.] Merril) VARIETY DETAP-1 TO THE PROPORTION OF QUICKLIME DURING NINETEEN MONTHS OF STORAGE

2025-09-29T05:28:57+00:00

Soybean seed storage using quicklime aims to maintain the quality of soybean seeds during a long storage period until the soybean seeds are ready to plant. This study aims to determine the optimal proportion of lime in maintaining the highest seed viability after being stored for nineteen months. This study was conducted from May to November 2023 at the Seed and Plant Breeding Laboratory, Faculty of Agriculture, University of Lampung. This study used a single factor, namely the proportion of quicklime. The proportion of lime weight used in this study was 0.0% (P0); 7.5% (P1); 15.0% (P2); 22.5% (P3); and 30.0% (P4) per 100g of seeds with a storage container volume of three liter volume. This study was arranged in a randomized block design (RAK) with five treatments and five replications to obtain 25 experimental units. The homogeneity test of variance was carried out using the Barlett test and the additivity of the data was tested using the Tukey test. The assumption of the analysis of variance was met, the separation of the mean value of the treatment used a polynomial comparison at the α level of 5%. The results of the study revealed that the addition of the proportion of quicklime increased the germination rate, strong normal sprouts, hypocotyl length, normal dry weight of sprouts, and decreased seed water content linearly, but the increase in germination power decreased with increasing proportion of lime. Seed viability after 17 and 19 months showed a relatively low seed germination power, which was 77.80% per 30 g of lime.