Selection for Yield and some Quality Traits in Du-rum Wheat (Trticum tuargidum L. var. durum) I- Yield | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Article 4, Volume 42, Issue 2, June 2011, Page 81-93 PDF (254.73 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2012.267318 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. N. Taha1; M. Z. El-Hifny2; A. A. Ismail2; A. M. Tammam1 | ||||
| 1Wheat Research Section, Field Crops Inst, Agric. Res. Center. | ||||
| 2Dept. of Agron., Fac. of Agric., Assiut University. | ||||
| Abstract | ||||
| The breeding materials used in this study were the F3, F4 and F5 generations of two durum wheat crosses, to improve grain yield using four selection criteria with pedigree selection. Differences between F3 families were highly significant in both populations and satisfactory genotypic coefficients of variation were detected for the selection criteria i.e., grain yield, no. of spikes/plant, no. of kernels/spike and 1000-kernel weight. The results indicated that selection for no. of spikes/plant improved it by 13.33 and 12.09% from the bulk sample and the check cultivar after two cycles of selection in population I, respectively. Such increase was accompanied with increasing no. of kernels/spike (5.29%), 1000-kernel weight (4.88%), grain yield/plant (12.08%) and biological yield/plant (19.45%), and decreasing heading date (1.56%) and plant height (2.13%) from the bulk sample. Selection for no. of kernels/spike after two cycles of pedigree selection increased the criterion of selection by 11.63 and 17.86% for pop < /p> | ||||
| Keywords | ||||
| durum wheat; pedigree selection; selection criterion | ||||
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