Optimized gamma radiation produces physiological and morphological changes that improve seed yield in wheat.

ABSTRACT: To study the effect of gamma radiation on various morphological and agronomic characters of bread wheat (Triticum aestivum L.), seeds were subjected to different gamma radiation doses; and selected M₅ and M₆ generation lines were evaluated. The optimum doses to induce desirable changes in bread wheat were 100-200 Gy. Seed loss decreased while grain yield, yield components, fertile florets number, biological yield, plant height, harvest index and flag leaf area increased in all mutant lines. Shear strength increased in many lines. Selected mutant lines also showed reduced seed shattering that can greatly reduce seed loss at harvest. Some new phenotypic characters such as the appearance of bristles on the glume, important for drought tolerance, two spikelets at e

SUBMITTER: Shabani M 

PROVIDER: S-EPMC9530081 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature