IMPROVEMENT OF SOME ECONOMIC TRAITS OF SWEET PEPPER (EL-BALADY CV.) BY RECURRENT SELECTION | ||||
| Journal of Plant Production | ||||
| Article 12, Volume 30, Issue 2, February 2005, Page 1001-1009 PDF (104.12 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2005.237138 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| H. M.M. Ghobary,; Aida M.M. Abd El-Rahim | ||||
| Veget. Res. Dept., [fort. Res. inst., Agric. Res. Center, Cairo, Egypt | ||||
| Abstract | ||||
| Recurrent selection has been used as a breeding method to improve traits having low heritability such as earliness, fruit yield and fruit weight. The objective of this study was to measure the progress of two cycles of recurrent selection ¡n increasing the productivity of sweet pepper (Capsicum annuum L.). To realize this objective, interest was also gÑen for the estimation of the variability in the original population and the correlation coefficients among the studied characters. Most studied characters especially plant height, number of branches / plant, early yield and total yield reflected high variability in the original population. The estimation of phenotypic correlation among the possible pairs of studied characters showed that significant or highly significant and positive correlation between early and total yield with number of fruits / plant, average fruit weight, fruit length , fruit diameter and fruit wall thickness. Total yield exhibited positive and highly significant correlation with earLy yield, number of fruits f plant and average fruit weight. Highly significant, but negative correlation between number of fruits / plant and average fruit weight. Highly significant positive correlation between average fruit weight, fruit length and fruit diameter. After two successive cycles of recurrent selection, the improvement over the base population (Co) were 60.3, 67.5, 27.3 and 13.6% for total yield per plant, number of fruits per plant, average fruit weight and fruit diameter, respectively. Therefore, the successive cycles of the recurrent selection seem to have an obvious effect on improving such characters. | ||||
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