EI-Galaly,, O. (2003). GENERATION MEAN ANALYSIS OF YIELD AND S ME OF ITS COMPONENTS IN FABA BEAN (Vic;a faba L.). Journal of Plant Production, 28(3), 1673-1683. doi: 10.21608/jpp.2003.242489
Ola A. M. EI-Galaly,. "GENERATION MEAN ANALYSIS OF YIELD AND S ME OF ITS COMPONENTS IN FABA BEAN (Vic;a faba L.)". Journal of Plant Production, 28, 3, 2003, 1673-1683. doi: 10.21608/jpp.2003.242489
EI-Galaly,, O. (2003). 'GENERATION MEAN ANALYSIS OF YIELD AND S ME OF ITS COMPONENTS IN FABA BEAN (Vic;a faba L.)', Journal of Plant Production, 28(3), pp. 1673-1683. doi: 10.21608/jpp.2003.242489
EI-Galaly,, O. GENERATION MEAN ANALYSIS OF YIELD AND S ME OF ITS COMPONENTS IN FABA BEAN (Vic;a faba L.). Journal of Plant Production, 2003; 28(3): 1673-1683. doi: 10.21608/jpp.2003.242489
GENERATION MEAN ANALYSIS OF YIELD AND S ME OF ITS COMPONENTS IN FABA BEAN (Vic;a faba L.)
Legume Research Section, FIeld Crop Research Institute, Agriculture Research Center, Egypt
Abstract
The genetic parameters controlling the expression of seed yield and some of its components have been studied using generation mean analysis In three faba bean crosses namely; C. 611148194 x Giza 3/6125,C. 811156194 x Giza 316125 and C. 9/1172/94 x Giza 3l6I25. Six populations of in each cross; P" P2, F" F2, BC, and BC2 were used in this concem, 10 estimate additive (CII), dominance (d) and (aa , (ad) and (dd) types of eplsta15is according to Gamble's method (1962).
Significanf addmve gene effects were found for plant height (cm) In all crosses, seed yield/plant in the second and third cross and 1QO.seed weigh (g) in the third cross, indicting that selection after each generation of selfing would be effective with such lraits. On the other hand, the dominance effects were significant and higher in magnitude Ihan additive ones for pIal'll height (em) in the first and second cross, number of branches/plant and 1 OO·seed weight (g) in the third cross and umber of pods and seedslplant in the second ClOSS, Indicating the possibility to increasing yield perfonnance via breeding procedure which emphasizes the dominance gene effects. Significant (aa) and (dd) types of epistasis W618 found 10 be accompanied by the significance of either F2 deviation (El) or bacJccross deviations (E2) for plant height (em), number or branches/plant and 100-seed weight (g) in the third ClOSS.
Significant positive mid and better parental heterosis were found for plant height (em) in first and second cross, number of pods/plant and 1OD-seed weigh! (g) in all crosses, and seed yield/plant (g) in the second and third cross, due to overdominance. Inbreeding depression values were signifICant for plant hei~ht (cm) in first and second cross, and number of pods and seeds/plant and seed yiel1d/planl (g) in the second and third ClOSS. Relatively high genetic gain upqn selection was found to be aSSOCiated with moderate narrow-sense heritability (h2) values and relatively high estimates 01 GCVO/O for number of pods and seeds and seed yield/pla~t (g) of the third cross plants, Indicating the effective of selection for these traits of the oss.
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