Six Generations Mean Analysis Using Scaling and Joint Scaling Tests in Faba Bean (Vicia faba L.)

Fouad, Hassan Mohamed

doi:10.21608/jsas.2019.18117.1175

Six Generations Mean Analysis Using Scaling and Joint Scaling Tests in Faba Bean (Vicia faba L.)

Document Type : Original Research Paper

Author

Hassan Mohamed Fouad

Department of Agronomy, Faculty of Agriculture, Minia University, El minia, Egypt

10.21608/jsas.2019.18117.1175

Abstract

Estimate of the genetic parameters, gene effects through generation mean analysis in two faba bean crosses were carried out at the Fac. Agric. Edu. Farm, Minia University, Egypt during three successive seasons 2015/18. Heritability values in broad sense were higher than heritability in narrow sense for all traits in both crosses. Heterosis over better parent, mid parents and inbreeding depression were positive for all traits in the two crosses. Degree of dominance was higher than one for all traits in both crosses. The significant positive additive gene effect for days to 50% flowering DF and plant height PH in cross I and biological yield BY/P and 100 seed weight 100 SW in cross II, indicates effective selection for these traits. Values of dominance effects were greater the additive effects for all traits. Complementary epistasis type for traits like PH and no. seeds/plant NS/P in cross I and DF, PH and 100 SW in cross II indicates that the two selected parents for crossing are different. For this reason, it is possible to achieve genetic advance in breeding programme of these traits. Duplicate epistasis type was predominant than complementary epistasis type in different traits in the two crosses. Hence, recurrent selection could be improved of these traits in advanced generations.

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