Evaluation of Drought Tolerant Rice Genotypes in Different Moisture Regime on Western Nepal

Abstract

to identify and select high yielding and major diseases and pests' resistant genotypes. Twenty-four genotypes identified from IRRI/STRASA experiment were taken for evaluation in RCB design with 3 replications under low fertilizer dose. Genotypes IR 83376-B-B-7-1, IR 877761-52-1-2-2, IR 95840-33-3-2-1 and IR 82608-B-B-33-2 were found drought resistance, early maturing. So, these genotypes would help to food security in western region of Nepal where average rainfall is low and drought is prevailing during rice growing months.

Agro-morphological and Genotypic Diversity among Rice Germplasms under Rainfed Lowland Condition

“…In previous reports, high-yielding genotypes had maturity below 122 days under similar study conditions (Adhikari, Mehera, & Haefele, 2018;Dhakal et al, 2020). Tripathi, Adhikari, Pokhrel, & Adhikari (2019) also reported a higher yield of genotype with early flowering nature under rainfed lowland conditions at Surkhet, Nepal. Genotypes recorded plant height, panicle length, and effective tillers per meter square within the range of 92-146 cm, 23-31.20 cm, and 188-275, respectively.…”

“…Rice cultivation in the mid-western river basin area usually suffers from drought at the reproductive stage. In such regions, early maturing rice genotypes were found beneficial as they complete or expose minimal to drought during a critical stage of their crop cycle (Dhakal et al, 2020;Panda, Mishra, & Behera, 2021;Tripathi, Adhikari, Pokhrel, & Adhikari, 2019). The primary focus in rice breeding, particularly for Nepal, is to develop high-yielding and stress-tolerant rice genotypes with desirable grain qualities (Tripathi, Bhandari, & Ladha, 2019).…”