Path Coefficient Analysis for Grain Yield and Some of its Attributes in Bread wheat (Triticum aestivum L.)

Abo-Elwafa, Atif; Taib, Ashraf B.A.; Abo-Sapra, Hussein M.; Bakheit, Bahy R.

doi:10.21608/ajas.2023.183395.1216

	Path Coefficient Analysis for Grain Yield and Some of its Attributes in Bread wheat (Triticum aestivum L.)
Assiut Journal of Agricultural Sciences
Article 1, Volume 54, Issue 1, January 2023, Page 1-18 PDF (601.02 K)
Document Type: Original Article
DOI: 10.21608/ajas.2023.183395.1216
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Authors
Atif Abo-Elwafa¹; Ashraf B.A. Taib²; Hussein M. Abo-Sapra ²; Bahy R. Bakheit¹
¹Department of Agronomy, Faculty of Agriculture, Assiut University, Assiut, Egypt
²Department of Agronomy, Faculty of Agriculture, Aswan University, Aswan, Egypt
Abstract
Path coefficient analyses were applied to detect the direct and indirect effects upon grain yield/plant in three groups as a: each of seed index, biological yield/plant and weight of spikes/plant; b: each of thrashing index, biological yield/plant and weight of spikes/plant; and c: all studied grain yield attributes. The three groups of path analyses were applied through F₄ and F₅ population of early and late pedigree line selection. The direct effects of biological yield and weight of spikes spikes/plant were decreased from the starting generations to final selections in the three groups, except final early selections possessed increased values in group two (g2) and group three (g3) for weight of spikes/plant. Otherwise, the direct effect of harvest index on grain yield was increased from started base to final selections. These results exhibited that the direct effects of those three traits on grain yield were responded differently according to the rearrangement of their genetic make-up across the different generations of selections and the type of path analysis.
Keywords
Path analysis; direct and indirect effects; bread wheat


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