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Prof. Muhammad Hany A.Tageldin :: Publications:

Title:
HETEROSIS AND COMBINING ABILITY FOR YIELD AND ITS COMPONENTS, EARLINESS, TOTAL SHEDDING AND RESISTANCE TO DISEASES AND INSECTS IN FABA BEAN (Vicia faba L.)
Authors: EI-.Hosary, A. A.; M.H. Bastawisy and M.H. Tageldin
Year: 1998
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
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Local/International: Local
Paper Link: Not Available
Full paper Muhammad Hany A.Tageldin_Doc1.pdf
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Abstract:

A half diallel set of crosses involving six parental lines were evaluated to estimate heterosis and combining ability for maturity, yield, yield components, total shedding percentage, severity for rust and chocolate spot disease, infestation of Aphids craccivora (Koch) and Liriomyza congesla (Beeher). Significant differences among genotypes were obtained for all traits. The parental line M. 127 was the earliest one and the best for yield per plant. The parents M. 109 and Rebaya 40 gave the lowest values for total shedding percentage and number of aphids! loo leaves. Mean squares for parents vs. crosses as an indication to average heterosis over all crosses were significant for all traits except number of pods/plant, number of seeds/pod and total shedding percentage. The most desirable heterotic effects were presented by; three crosses R. 40 x G 461, M. 109x G 461 and M. 109 x R, 40 for seed yield! plant, cross R. 40 x G 461 for rust resistance, three crosses M. 109 x G 716, M. 109 x 0461 and 40 x G 716 for chocolate spot resistance, five crosses M. 109 x R. 40, M. 127 x 0461, M. 127 x G 714, R. 40 x 0. 716 and R. 40 x G 461 for number of aphids! 100 leaves and five crosses M 109 x G 461, M 127 x M 109,M l09x046l,M 127xG716andG716XG46l fornumberofleafminor. Significant variances associated with general and specific combining ability were detected for all studied traits. With the exception of maturity date, total shedding percentage, rust disease and number of aphids!100 leaves, high ratio of OCA! SCA which exceed the unity were detected, revealing that the largest part of the total genetic variability associated with these traits was a result of additive gene action. The parental line M 127 expressed significant positive, g, effects for number of pods/plant, 100 seed weight and seed yield! plant. R. 40 was considered as the bet combiner for maturity date and resistance for aphids. G. 716 was a good combiner for maturity date, 100 seed weight, seed yield and resistance for leafminor. G. 461 expressed significant positive g, effects for number of seeds/pod, chocolate spot and number of aphids!100 leaves. The most desirable inter- and intra allelic interactions were represented by five crosses for maturity date, four crosses for number of pods! plant, three crosses for number of seeds/pod, nine crosses for 100 seed weight, and seed yield/plant, two crosses for total shedding percentage, one cross for rus? severity, one cross for chocolate spot, five crosses for number of aphids and four crosses for resistance of leafminor.

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