Estimation of heterosis, inbreeding depression and genetic parameters associated with them of some economical traits of eggplant (Solanum melnogena, L.)
Abd El-Hadi, A.H.
Estimation of heterosis, inbreeding depression and genetic parameters associated with them of some economical traits of eggplant (Solanum melnogena, L.) [electronic resource]. تقدير قوة الهجين والتدهور الناتج عن التربية الداخلية والقياسات الوراثية المصاحبة لهما لبعض الصفات الإقتصادية للباذنجان. - p.2207-2222.
Includes references.
This. investigation was conducted as an attempt to improve the productivity and quality of eggplant as a popular vegetable crop. Five varieties of eggplant were used to obtain 20 F₁hybrids and their corresponding 20 F² generations through a complete diallel crosses mating design. Many traits were studied. The results indicated the presence of heterosis in the F₁ hybrids, F₁r (reciprocal) hybrids and all F₁r hybrids versus mid-parents for all studied traits. In addition, heterobeltiosis were detected for most studied traits. The highest values of heterosis estimated from the mid-parents were 72.79, 76.21 and 74.6% for total yield per plot (kg) for F₁r and F₁,lrhybrids, respectively. So, inbreeding depression were observed for all studied traits. The results indicated that specific combining ability variances (σ²S) were larger than those of general combining ability variances (σ²g) for most studied traits. Thus, the non-additive genetic variance including dominance (σ²D) played a major role for the inheritance of eggplant traits. In the same time, additive genetic variances (σ²A) was also present. . The results also revealed that the magnitudes of heritability in broad sense (h²b %) was larger than their corresponding values in narrow sense (h² n %) for all studied traits. The highest values of heritability in broad and narrow senses were 99.75 and 88.05% for total yield per plot (kg) in FI hybrids and weight offruit (g) in the F² generations, respectively.
Summary in Arabic.
Eggplant--Breeding.
Eggplant--Genatics.
Estimation of heterosis, inbreeding depression and genetic parameters associated with them of some economical traits of eggplant (Solanum melnogena, L.) [electronic resource]. تقدير قوة الهجين والتدهور الناتج عن التربية الداخلية والقياسات الوراثية المصاحبة لهما لبعض الصفات الإقتصادية للباذنجان. - p.2207-2222.
Includes references.
This. investigation was conducted as an attempt to improve the productivity and quality of eggplant as a popular vegetable crop. Five varieties of eggplant were used to obtain 20 F₁hybrids and their corresponding 20 F² generations through a complete diallel crosses mating design. Many traits were studied. The results indicated the presence of heterosis in the F₁ hybrids, F₁r (reciprocal) hybrids and all F₁r hybrids versus mid-parents for all studied traits. In addition, heterobeltiosis were detected for most studied traits. The highest values of heterosis estimated from the mid-parents were 72.79, 76.21 and 74.6% for total yield per plot (kg) for F₁r and F₁,lrhybrids, respectively. So, inbreeding depression were observed for all studied traits. The results indicated that specific combining ability variances (σ²S) were larger than those of general combining ability variances (σ²g) for most studied traits. Thus, the non-additive genetic variance including dominance (σ²D) played a major role for the inheritance of eggplant traits. In the same time, additive genetic variances (σ²A) was also present. . The results also revealed that the magnitudes of heritability in broad sense (h²b %) was larger than their corresponding values in narrow sense (h² n %) for all studied traits. The highest values of heritability in broad and narrow senses were 99.75 and 88.05% for total yield per plot (kg) in FI hybrids and weight offruit (g) in the F² generations, respectively.
Summary in Arabic.
Eggplant--Breeding.
Eggplant--Genatics.