Viability and responsiveness of several varieties of brown rice to salinity stress on a seedbed

Abstract

This study aims to determine the viability and responsiveness of several varieties of brown rice to salinity stress on seedbeds. The study was conducted from December 2019 to January 2020. The study used a factorial randomized block design, namely varieties and soil salinity levels. The brown rice varieties (V) tested were: Inpari 24 (V1), Pamelen (V2) and Pamera (V3), then the level of soil salinity (S), consisting of S0 = 0, S1 = 4-5 dS/m2, S2 = >5-6 dS/m2 and S3 = >6-7 dS/m2 soil, each with 3 replications. The parameters observed were maximum growth potential, germination, vigour index, plant height, root length, root volume, and salt injury score. The results showed that salinity stress significantly affected all observation parameters. Different varieties produced different responses to salinity stress for maximum growth potential, germination, and root volume parameters. The interaction between the two treatments also significantly affected all observation parameters, and the Inpari 24 variety was the most adaptive to salinity stress on the seedbed.