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Prof. Ali Abd El-Maksoud El-Hosary :: Publications:

Genetical Studies on Grain Yield and Some of its Components in Barley (Hordeum vulgare L.).
Authors: A. A. Abul-Naas; M.A. Mahrou and A.A. El-Hosary.
Year: 1993
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Ali Abd El-Maksoud El-Hosary_38.pdf
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six - rowed barley crosses i.e Giza 117 x Giza 119 andGiza 117 x introduction line Baitori, were tested with six popula tions (P1, P2, F1, F2, BC1, and BCfor; grain yield per plant, no. of spikes per plant, 1000 - kernel weight, and spike length. Highly significant positive heterosis were obtained for all studied traits in the second cross. Significant positive values for inbreeding depression were detected for spike length in the first cross, no. of spikes/plant,1000-kernel weight and grain yield/plant in the second cross, However, spike length seemed to be highly significant negative value for inbreeding depression in the second cross. The additive and dominance genetic estimates as the type of gene action were either significant or exceeded their standard error for all traits in both crosses, except, grain yield per plant in both crosses and spike length in the first cross for the additive genetic es timate. Significant estimates for epistatic gene interactions were ex hibited in both crosses for all traits. High heritability values, in broad sense, were detected for all traits in both crosses. On the other hand, low heritability values, in narrow sense, were obtained for no. of spikes/ plant and spike.length in the first cross. Moderate values were estimated for the other traits. High to moderate values of predicted genetic gain were detected for all studied traits in both crosses.

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