GENETIC STUDIES ON SOME ECONOMIC CHARACTERS IN PEA (Pisum sativum L.) | ||
| Journal of Plant Production | ||
| Article 6, Volume 2, Issue 11, November 2011, Pages 1481-1494 PDF (589.65 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2011.85671 | ||
| Authors | ||
| M. A. Nosser; Ebtesam Y. Bhnan | ||
| Vegt. Res Dept., Hort. Res. Instit, Agric. Res. Center, Giza, Egypt | ||
| Abstract | ||
| This study was carried out at El-Kanater El-Khayria Vegetable Rsearch Farm, Kalubia Governorate, Egypt. During the period from 2008 to 2010. Four pea cvs., viz., Master B, Samroula, Waver Top and Kiados were used in this study. Crosses between these cvs were done and F1, F1r and F2 seeds were produced and evaluated to study the inheritance of some economic characters. Absence of maternal effect was noticed for all characters in all crosses. Different types of dominance were found in different crosses for the studied characters as over dominance which was found for all characters except for the characters pod length and number of seeds/pod, meanwhile, partial dominance were detected in some hybrids for studied characters. Positive heterosis values estimated were 1.36 % - 28.10 %, 2.75 % - 30.97 %, 0.60 % - 3.26 %, 10.63 % - 22.83 and 2.78 % – 4.84 % for plant height, total green pods yield/plant, pod length, number of pods/plant and number of seeds/pod, respectively. While negative heterosis estimated was from -15.84 % for plant height and -5.48 % for number of seeds/pod. Minimum number of gene pairs estimated was 1-2, 1-9, 1-12, 1-4 and 1-7 for plant height, total green pods yield/plant, pod length, number of pods/plant and number of seeds/pod, respectively. BSH estimates for previously listed characters were, respectively, 70.66 % - 89.89 %, 32.56 % - 67.60 %, 38.58 % - 77.85 %, 27.39 % - 68.42 % and 50.00 % - 67.88 % for this characters. In general, some promising F2 plants could be selected to start a breeding program for producing a new pea cultivar. | ||
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