PERFORMANCE OF BREAD WHEAT DIALLEL AMONG SEVENPARENTS UNDER WATER STRESS CONDITIONS | ||
| Fayoum Journal of Agricultural Research and Development | ||
| Article 3, Volume 23, Issue 1, January 2009, Pages 22-31 PDF (301.69 K) | ||
| Document Type: Research articles. | ||
| DOI: 10.21608/fjard.2009.197012 | ||
| Authors | ||
| Mohamed A. Abd El-Shafi; A.A. Abd El-Mohsen; S.A. El-Ssadi | ||
| Agronomy Department, Faculty of Agriculture, Cairo University, Egypt | ||
| Abstract | ||
| Seven bread wheat genotypes (line 39, line 54, New valley, V92/17, V99/17, Sakha 8 and Sahel 1) were crossed in a half-diallel mating design and were planted to determine their genetic behavior under water stress conditions. Results were recorded on days to heading, plant height, no. of spikes/plant, no. of grains/spike and grain yield/plant. Results for all traits revealed highly significant (P < 0.01) differences among genotypes under water stress conditions. General (GCA) and specific (SCA) combining ability were found to be significant or highly significant for all traits, indicating the importance of additive and non-additive gene actions in controlling the performance of these traits in all genotypes. In general, for all studied traits, the magnitude of mean squares due to GCA was higher than that due to SCA, suggesting that additive was more important than non-additive gene effects in the inheritance of these traits. One superior cross (Line 39 x V 92/17) for grain yield and two crosses (New valley x V 92/17 and Line 54 x New valley) for no. of grains/spike under water stress were considered as promising hybrids for improvement purpose. Moreover, they involved good combiner parents which can be used to improve any of these features. | ||
| Keywords | ||
| Genetic analysis; Wheat; Water stress; Gene action; GCA; SCA | ||
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