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Singh, P.
- Heterosis and Inbreeding Depression in Relation to other Genetic Parameters in Egg Plant
Abstract Views :198 |
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Authors
Kailash Ram
1,
P. Singh
2
Affiliations
1 Government Degree College, Jakhini, Varanasi (U.P.), IN
2 Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur (U.P.), IN
1 Government Degree College, Jakhini, Varanasi (U.P.), IN
2 Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur (U.P.), IN
Source
Asian Journal of Bio Science, Vol 7, No 2 (2012), Pagination: 163-168Abstract
Heterosis and inbreeding depression with other genetic parameters were studied with the 60 hybrids involving 15 female lines and 4 male testers evaluated for ten characters in a Randomized Block Design with three replications at Kanpur. Maximum positive heterosis (69.23 per cent) was recorded over economic parent (Type 3), whereas inbreeding depression has score 32.39 per cent. None of the crosses exhibited significant heterosis for most of the characters. However, on the basis of fruit yield per plant supported by other significant traits, crosses KS 233 × T 3, KS 263 × AB 1, ACC 2623 × T 3, ACC 820 6 × T 3, ACC 8204 × T 3, KS 247 × T3 and KS 227 × AB 1 for days to flowering, days to marketable maturity, plant height (only for KS 233 × T 3), number of branches per plant, number of fruits per plant, width of fruit (only for KS 263 × AB 1), fruit weight (except KS 247 × T 3 and KS 227 × AB 1) and plant spread exhibited maximum heterotic effects alongwith inbreeding depression. All the 60 crosses exhibited additive gene action except KS 247 × DBR 8 and KS 227 × ABR 8 for plant height, ACC 2623 × KS 224 and ACC 2623 × DBR 8 for width of fruit, ACC 8206 × T 3 for fruit weight and KS 250 × AB 1 for yield per plant which showed non-additive gene effects in relation to heterosis and inbreeding depression. High heritability coupled with high genetic advance was recorded by days to flowering, days to marketable maturity, plant height and fruit weight. Rest of the characters showed high heritability with medium or low genetic advance.Keywords
Egg Plant, Heterosis, Inbreeding Depression, sca Effects, Degree of Dominance, Heritability, Genetic Advance.- Genetics of Yield and other Quantitative Traits in Indian Mustard
Abstract Views :190 |
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Authors
Affiliations
1 Department of Genetics and Plant Breeding, C.S. Azad University of Ag. & Tech., Kanpur (U.P.), IN
1 Department of Genetics and Plant Breeding, C.S. Azad University of Ag. & Tech., Kanpur (U.P.), IN
Source
Asian Journal of Bio Science, Vol 2, No 1 (2007), Pagination: 47-52Abstract
Experiment comprising 100 treatments (10 parents + 45 F1s + 45 F2s) generated from 10 parent diallel mating design was conducted in Indian mustard. Graphical representation reflected the over dominance with non- additive gene action for the characters number of siliquae on main raceme in both the generations, number of secondary branches per plant in F1, number of primary branches per plant and oil content in F2 generation whereas, rest of the characters reflected the partial dominance.Keywords
Diallel, Graphical Analysis, Over Dominance, Partial Dominance.- Gene Effects of Yield and its Components in Indian Mustard (Brassica juncea Czern & Coss.)
Abstract Views :201 |
PDF Views:0
Authors
Affiliations
1 Department of Plant Breeding & Genetics, Oilseeds section, C.S.A. Univ. of Ag. & Tech., Kanpur (U.P.), IN
1 Department of Plant Breeding & Genetics, Oilseeds section, C.S.A. Univ. of Ag. & Tech., Kanpur (U.P.), IN