Pedigree Selection to Improve the Seed Yield in a Segregating Population of Sesame (Sesamum indicum L.) | ||||
| Journal of Plant Production | ||||
| Article 10, Volume 9, Issue 8, August 2018, Page 703-707 PDF (261.7 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2018.36392 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Ghada B. Abd-ElAziz* | ||||
| Agric. Res. Center, Oil Crops Division, Egypt. | ||||
| Abstract | ||||
| The present investigation was conducted at Arab El-Awammer Agricultural Research Station, Assiut, Egypt during 2012, 2013 and 2014 summer seasons. Two cycles of pedigree selection method were applied on a segregating population of sesame in the F3, F4 and F5 generations to improve seed yield. The soil of the experiment site is sandy calcareous. Highly significant differences among F3 families and a sufficient genotypic coefficient of variability (GCV) were obtained for all studied traits. The coefficient of variability decreased from 49.88 % in the F3 population to 22.68 % in the F5 for seed yield/plant. Broad sense heritability estimates were high for most traits and reached 93.32 % for seed yield/plant after two cycles of selection. The observed gain in seed yield/plant was significant (P<0.01) and accounted for 80.27 % from the unselected bulk sample. All of the families in the F5 generation showed significant increase in seed yield/plant. It could be concluded that pedigree selection was an efficient method to improve seed yield productivity in the studied population. Selection for productivity could be practiced in the early segregating generations and two cycles of selection were enough to detect the families with high productive. Otherwise, single trait selection accompanied with adverse effects on other traits, and selection index could be recommended to improve seed yield and other traits. | ||||
| Keywords | ||||
| Sesame (Sesamum indicum L.); pedigree selection; genetic advance; segregating generation | ||||
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