Bansal Ruchi, Bana Ram Swaroop, Dikshit Harsh K, Srivastava Harshita, Priya Swati, Kumar Sunil, Aski Muraleedhar S, Kumari N K Prasanna, Gupta Sanjeev, Kumar Shiv
ICAR-National Bureau of Plant Genetic Resources, New Delhi, India.
ICAR-Indian Agricultural Research Institute, New Delhi, India.
Front Nutr. 2023 Jun 16;10:1141040. doi: 10.3389/fnut.2023.1141040. eCollection 2023.
The world's most challenging environmental issue is climate change. Agricultural productivity and nutritional quality are both substantially threatened by extreme and unpredicted climate events. To develop climate resilient cultivars, stress tolerance along with the grain quality needs to be prioritized. Present study was planned to assess the effect of water limitation on seed quality in lentil, a cool season legume crop. A pot experiment was carried out with 20 diverse lentil genotypes grown under normal (80% field capacity) and limited (25% field capacity) soil moisture. Seed protein, Fe, Zn, phytate, protein and yield were recorded in both the conditions. Seed yield and weight were reduced by 38.9 and 12.1%, respectively, in response to stress. Seed protein, Fe, Zn, its availability as well as antioxidant properties also reduced considerably, while genotype dependent variation was noted with respect to seed size traits. Positive correlation was observed between seed yield and antioxidant activity, seed weight and Zn content and availability in stress. Based on principal component analysis and clustering, IG129185, IC559845, IC599829, IC282863, IC361417, IG334, IC560037, P8114 and L5126 were promising genotypes for seed size, Fe and protein content, while, FLIP-96-51, P3211 and IC398019 were promising for yield, Zn and antioxidant capacity. Identified lentil genotypes can be utilized as trait donors for quality improvement in lentil breeding.
世界上最具挑战性的环境问题是气候变化。极端且不可预测的气候事件严重威胁着农业生产力和营养品质。为了培育适应气候变化的品种，需要优先考虑胁迫耐受性以及谷物品质。本研究旨在评估水分限制对小扁豆（一种冷季豆类作物）种子品质的影响。进行了一项盆栽试验，用20种不同的小扁豆基因型在正常（田间持水量的80%）和有限（田间持水量的25%）土壤湿度条件下种植。记录了两种条件下种子的蛋白质、铁、锌、植酸盐、蛋白质和产量。胁迫导致种子产量和重量分别降低了38.9%和12.1%。种子蛋白质、铁、锌及其有效性以及抗氧化特性也大幅降低，而在种子大小性状方面存在基因型依赖性差异。在胁迫条件下，观察到种子产量与抗氧化活性、种子重量与锌含量及有效性之间呈正相关。基于主成分分析和聚类，IG129185、IC559845、IC599829、IC282863、IC361417、IG334、IC560037、P8114和L5126是种子大小、铁和蛋白质含量方面有前景的基因型，而FLIP - 96 - 51、P3211和IC398019在产量、锌和抗氧化能力方面有前景。鉴定出的小扁豆基因型可作为小扁豆育种中品质改良的性状供体。
