Heterosis, inbreeding depression and heritability for yield and yield components in cowpea
A field experiment was undertaken with a view to know the extent of heterosis, inbreeding depression, heritability and genetic advance for yield and yield components in cowpea [Vigna unguiculata (L.) Walp.]. Six generations viz., P1, P2, F1, F2, BC1 and BC2 of eight crosses involving sixteen diversi...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2017-03-01
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| Series: | Electronic Journal of Plant Breeding |
| Subjects: | |
| Online Access: | http://ejplantbreeding.org/index.php/EJPB/article/view/1228 |
| _version_ | 1811310198211477504 |
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| author | A.R. Pathak M.R. Naik and H.K. Joshi |
| author_facet | A.R. Pathak M.R. Naik and H.K. Joshi |
| author_sort | A.R. Pathak |
| collection | DOAJ |
| description | A field experiment was undertaken with a view to know the extent of heterosis, inbreeding depression, heritability and genetic advance for yield and yield components in cowpea [Vigna unguiculata (L.) Walp.]. Six generations viz., P1, P2, F1, F2, BC1 and BC2 of eight crosses involving sixteen diversified cultivars of cowpea [Vigna unguiculata (L.) Walp.] were evaluated for yield and its traits. Significant positive heterosis for seed yield per plant and its related traits followed by significant inbreeding depression indicated major role of non-additive gene actions in the inheritance of seed yield per plant and its attributes. For seed yield per plant top three heterotic crosses were cross II (GC-4 x Pusa komal) followed by cross VIII (Cowpea sabra x Waghai krushi) and cross I (GC-3 x Pusa falguni). High heritability coupled with high genetic advance for cross I (GC-3 x Pusa falguni) and high heritability coupled with moderate genetic advance for cross II (GC-4 x Pusa komal), cross III (GC-5 x Anand cowpea), cross IV (W-203-3 x W-3-1) and cross V (W-502-2 x W-3-2) for seed yield per plant indicated heritability was due to additive gene effects. Involvement of both additive and non-additive gene effects suggested that it would be desirable to follow cyclic method of breeding. |
| first_indexed | 2024-04-13T09:55:08Z |
| format | Article |
| id | doaj.art-c33d2f6f25074f62b2da0868f9636276 |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-04-13T09:55:08Z |
| publishDate | 2017-03-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-c33d2f6f25074f62b2da0868f96362762022-12-22T02:51:29ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2017-03-0181727710.5958/0975-928X.2017.00010.2Heterosis, inbreeding depression and heritability for yield and yield components in cowpeaA.R. PathakM.R. Naik andH.K. JoshiA field experiment was undertaken with a view to know the extent of heterosis, inbreeding depression, heritability and genetic advance for yield and yield components in cowpea [Vigna unguiculata (L.) Walp.]. Six generations viz., P1, P2, F1, F2, BC1 and BC2 of eight crosses involving sixteen diversified cultivars of cowpea [Vigna unguiculata (L.) Walp.] were evaluated for yield and its traits. Significant positive heterosis for seed yield per plant and its related traits followed by significant inbreeding depression indicated major role of non-additive gene actions in the inheritance of seed yield per plant and its attributes. For seed yield per plant top three heterotic crosses were cross II (GC-4 x Pusa komal) followed by cross VIII (Cowpea sabra x Waghai krushi) and cross I (GC-3 x Pusa falguni). High heritability coupled with high genetic advance for cross I (GC-3 x Pusa falguni) and high heritability coupled with moderate genetic advance for cross II (GC-4 x Pusa komal), cross III (GC-5 x Anand cowpea), cross IV (W-203-3 x W-3-1) and cross V (W-502-2 x W-3-2) for seed yield per plant indicated heritability was due to additive gene effects. Involvement of both additive and non-additive gene effects suggested that it would be desirable to follow cyclic method of breeding.http://ejplantbreeding.org/index.php/EJPB/article/view/1228cowpeaheterosisinbreeding depressionheritabilitygenetic advance |
| spellingShingle | A.R. Pathak M.R. Naik and H.K. Joshi Heterosis, inbreeding depression and heritability for yield and yield components in cowpea Electronic Journal of Plant Breeding cowpea heterosis inbreeding depression heritability genetic advance |
| title | Heterosis, inbreeding depression and heritability for yield and yield components in cowpea |
| title_full | Heterosis, inbreeding depression and heritability for yield and yield components in cowpea |
| title_fullStr | Heterosis, inbreeding depression and heritability for yield and yield components in cowpea |
| title_full_unstemmed | Heterosis, inbreeding depression and heritability for yield and yield components in cowpea |
| title_short | Heterosis, inbreeding depression and heritability for yield and yield components in cowpea |
| title_sort | heterosis inbreeding depression and heritability for yield and yield components in cowpea |
| topic | cowpea heterosis inbreeding depression heritability genetic advance |
| url | http://ejplantbreeding.org/index.php/EJPB/article/view/1228 |
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