TINGKAT TOLERANSI BEBERAPA PIPERACEAE TERHADAP CEKAMAN AIR TOLERANCE LEVEL OF SOME PIPERACEAE TO WATER STRESS

Abstract

Piperaceae are plants that are often found and known by the public as medicinal plants. This study aims to obtain information about the effect of inundation duration on the resistance of several Piperaceae plant species and obtain Piperaceae species that are resistant to inundation stress. This research was conducted at Jl. Persatuan Rt 004 / Rw 011, Limbung Village, Sungai Raya District, Kubu Raya Regency. The research was conducted for 3 months, namely in July - October 2023. The design used in this study is a Factorial Complete Randomized Design (CRD) consisting of 2 factors, namely the first factor of the pipereceae family consisting of 4 species and the second factor is the length of inundation consisting of 4 treatments. So that there were 16 treatment combinations replication 3 times so that 48 experimental units were obtained. Each experimental unit consisted of 5 sample plants. Variables observed in this study include shoot length, number of leaves, longest root, dry weight, leaf color, percentage of life and sensitivity index. The results showed that inundation stress can reduce the growth of Piperaceae plants including a decrease in the number of leaves, and a decrease in root length. Based on the sensitivity index of the plant, the length of inundation on the variable length of shoots, the number of leaves and the longest root of pepper plants has a more tolerant Melada, than Piper betle, bengkayang pepper varieties, and Piper retrofractum.