Genotypic variation in yield, physiological traits, and drought tolerance of quinoa (<i>Chenopodium quinoa</i> Willd.) under arid conditions.

ABSTRACT: Water scarcity is a major constraint to agricultural productivity in arid and semi-arid regions, underscoring the need for crops with high water-use efficiency and resilience to drought. This study evaluated 21 quinoa (Chenopodium quinoa Willd.) accessions under three drip-irrigation regimes-W1 (15 min), W2 (10 min), and W3 (5 min)-applied twice daily in a split-plot design with three replications in the arid conditions of western Saudi Arabia. Significant effects of irrigation, genotype, and their interaction were detected for most phenological, morphological, physiological, and yield traits. Among the evaluated accessions, CHEN-195, CHEN-316, and CHEN-140 consistently outperformed others, producing the highest seed yields per plant (up to 13.58 g) and per hectare (2400.2 kg ha^-1

SUBMITTER: Mousa MAA 

PROVIDER: S-EPMC12669017 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature