Evaluation of Chenopodium quinoa × C. berlandieri recombinant inbred lines (RILs) for heat tolerance

There is growing interest in expanding quinoa (Chenopodium Willd.) cultivation; however, the main limitation its sensitivity to temperatures above 32-35 °C. Chenopodium berlandieri Moq., wild-weedy North American ancestor of quinoa, was employed as an exotic source drought, heat, and salinity tolerance enlarge genetic variation cultivated quinoa. The present work aims assess influence high on seed setting rate production potential two recombinant inbred lines (RILs), RIL2-4 RIL2-5. Thus, trials were carried out Morocco at Berrechid Tiflet 2017-2018 Bouchane, Meknès, El Kebab 2018-2019. field experiment design a randomized complete block with four replicates. Ten quantitative traits measured. ANOVA showed significant variability for all evaluated parameters. had widely different degrees among experimental sites, exceeding 120% while approaching 98% Bouchane. expressed lowest 11.26%. Pearson’s correlation matrix analysis positive between plant size maturity inflorescence length. An mixed model interactions (AMMI) revealed first interaction; principal component axis explained 53.3% total second described 46.7%. Four homogeneous groups emerged. have segregated evidenced by their variable rates grain DM yields.