Pedigree selection for yield and some of its components in bread wheat.

Document Type : Original Research

Authors

1 department of agronomy Faculty of Agriculture and Natural Resources Aswan University

2 faculty ofagriculture aswan university

3 department of agronomy Faculty of Agriculture Asiut University

4 agronomy departmint faculty of agriculture assiut university

Abstract

The current study was conducted at Fac. Agric. Farm, Assiut University, Egypt, over three consecutive seasons, 2019/2020, 2020/2021, and 2021/2022. The objective of this study was to examine the effectiveness of two cycles of pedigree line selection for the grain yield and one cycle of late selection in a single segregating population of bread wheat (Triticum aestivum. L). From the base population to the final early and late cycles of pedigree line selection, the genotypic (GCV) and phenotypic (PCV) coefficients of variation for the grain yield/plant and its attributes decreased. Otherwise, from the base population to the end cycles of early and late selection, the heritability values for grain yield/plant and its attributes were increased. The final 10 selections of both early and late selected families outperformed their respective parents and unselected bulk sample, resulting in late selections with a more powerful direct response to selection for the grain yield/plant

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Aswan University Journal of Environmental Studies
Volume 4, Issue 3
June 2023
Pages 122-138

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