Variability in Seed Yield of Multi-Cut Barseem Clover (Trifolium alexandrinum, L.) Gene Pool | ||||
| Alexandria Journal of Agricultural Sciences | ||||
| Article 4, Volume 62, Issue 6, December 2017, Page 395-400 PDF (495.97 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/alexja.2017.67619 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Ahmed M.Abd EL-Sattar1; Samir Rady Asmaa Mohamed1; Fakhary Haeba M.2 | ||||
| 1Crop Science Dept., Faculty of Agriculture (El-shatby), Alexandria | ||||
| 2Post- graduate student, Crop Science Dept., Faculty of Agriculture (El-shatby), Alexandria University * Corresponding auther. | ||||
| Abstract | ||||
| The objective of the recent study was to detect variability in Egyptian multi-cut barseem gene pool via studying four different commercial populations regarding seed yield and seed yield components. These were; Khadarwi, Meskawi, Serow and Helaly. Means of total seed weight.plant-1were approximately similar for Khadarawi (26.131g) and Meskawi (26.122) population. This was affected by similar figures for seed yield components. Serow population scored the least seed weight.plant-1 (21.981g) affected largely by the least number of seed.head-1 (37.79 seed.head-1). Meanwhile, Helaly population had the second least total seed weight.plant-1 (23.49g) affected also by low figure of number of seed.head-1. Major proportion of total variance (σ2p)was contributed by the genotypic component (σ2g) in total seed weight. plant-1 and number of heads.plant-1in all studied barseem populations. Whereas, the genotypic variance represented a very limited portion of phenotypic variance for other studied seed yield components in all studied populations. Heritability estimates in khadarawi and Meskawi populations postulated a strong genetic control on total seed weight .plant-1 and number of heads. plant-1 (0.98 and 0.97%). While, weak estimates were recorded for number of seeds.head-1, seed weight.head-1and 1000 seed weight (0.23, 0.13 and 0.04%, respectively). Estimates of expected gain from selection the top 10% of half-sib families of khadarawi population might result in 59.85% increase in total seed weight, which amount to15.64 g.plant- 1.Concerning Helaly population selecting the top 10% of half-sib families might result in total seed weight.plant-1 and number heads.plant-1 increase of 72.43 and 67.09% which might amount to 17.01g.plant-1 and 105.8heads.plant-1. | ||||
| Keywords | ||||
| Barseem clover; half-sib families; seed yield; PCV; GCV; heritability; genetic gain | ||||
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