Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin
Pigeon pea is an important but unfortunately neglected grain legume crop in Benin. In this study, the phenotypic diversity in 84 landraces from Benin and four advanced varieties were evaluated at two locations during two consecutive rainy seasons. Twelve quantitative and ten qualitative variables we...
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| Format: | Article |
| Language: | English |
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De Gruyter
2019-09-01
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| Series: | Open Agriculture |
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| Online Access: | https://doi.org/10.1515/opag-2019-0046 |
| _version_ | 1819116452193501184 |
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| author | Zavinon Fiacre Adoukonou-Sagbadja Hubert Bossikponnon Angelo Dossa Hermann Ahanhanzo Corneille |
| author_facet | Zavinon Fiacre Adoukonou-Sagbadja Hubert Bossikponnon Angelo Dossa Hermann Ahanhanzo Corneille |
| author_sort | Zavinon Fiacre |
| collection | DOAJ |
| description | Pigeon pea is an important but unfortunately neglected grain legume crop in Benin. In this study, the phenotypic diversity in 84 landraces from Benin and four advanced varieties were evaluated at two locations during two consecutive rainy seasons. Twelve quantitative and ten qualitative variables were recorded. A wide range of variation was observed in qualitative traits as well as in quantitative variables. The overall Shannon–Weaver diversity index ranged from 0.41 (pod hairiness) to 1.51 (seed colour). Analysis of variance revealed highly significant differences among accessions for all quantitative traits, except the number of seeds per pod, the days to maturity and the seed yield per plant. In all quantitative traits, phenotypic coefficient of variation was higher than genotypic coefficient of variation indicating a substantial environmental effect on their variability. However, some traits (days to flowering, pod width, number of secondary branches and 100 seed weight) showed great value of heritability. Hierarchical clustering on principal components subdivided the collection from Benin into two groups that were clearly separated from the group of advanced varieties. The results gathered from this study have important implications for pigeon pea germplasm characterization and conservation while the inferred phenotypic groups could be used for parental selection and heterotic crossings in pigeon pea breeding in Benin. |
| first_indexed | 2024-12-22T05:17:18Z |
| format | Article |
| id | doaj.art-07d4cc47240841568219ef6fc9aaca03 |
| institution | Directory Open Access Journal |
| issn | 2391-9531 |
| language | English |
| last_indexed | 2024-12-22T05:17:18Z |
| publishDate | 2019-09-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Agriculture |
| spelling | doaj.art-07d4cc47240841568219ef6fc9aaca032022-12-21T18:37:49ZengDe GruyterOpen Agriculture2391-95312019-09-014148749910.1515/opag-2019-0046opag-2019-0046Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern BeninZavinon Fiacre0Adoukonou-Sagbadja Hubert1Bossikponnon Angelo2Dossa Hermann3Ahanhanzo Corneille4Laboratory of Genetic Resources and Molecular Breeding, Department of Genetic and Biotechnology, Faculty of Sciences and Techniques, University of Abomey-Calavi, BP 1947 Abomey-Calavi, Benin RepublicLaboratory of Genetic Resources and Molecular Breeding, Department of Genetic and Biotechnology, Faculty of Sciences and Techniques, University of Abomey-Calavi, BP 1947 Abomey-Calavi, Benin Republic, Tel: 00229 96 72 76 05Laboratory of Genetic Resources and Molecular Breeding, Department of Genetic and Biotechnology, Faculty of Sciences and Techniques, University of Abomey-Calavi, BP 1947 Abomey-Calavi, Benin RepublicLaboratory of Genetic Resources and Molecular Breeding, Department of Genetic and Biotechnology, Faculty of Sciences and Techniques, University of Abomey-Calavi, BP 1947 Abomey-Calavi, Benin RepublicDepartment of Genetic and Biotechnology, Faculty of Sciences and Techniques, University of Abomey-Calavi, BP 1947 Abomey-Calavi, Benin RepublicPigeon pea is an important but unfortunately neglected grain legume crop in Benin. In this study, the phenotypic diversity in 84 landraces from Benin and four advanced varieties were evaluated at two locations during two consecutive rainy seasons. Twelve quantitative and ten qualitative variables were recorded. A wide range of variation was observed in qualitative traits as well as in quantitative variables. The overall Shannon–Weaver diversity index ranged from 0.41 (pod hairiness) to 1.51 (seed colour). Analysis of variance revealed highly significant differences among accessions for all quantitative traits, except the number of seeds per pod, the days to maturity and the seed yield per plant. In all quantitative traits, phenotypic coefficient of variation was higher than genotypic coefficient of variation indicating a substantial environmental effect on their variability. However, some traits (days to flowering, pod width, number of secondary branches and 100 seed weight) showed great value of heritability. Hierarchical clustering on principal components subdivided the collection from Benin into two groups that were clearly separated from the group of advanced varieties. The results gathered from this study have important implications for pigeon pea germplasm characterization and conservation while the inferred phenotypic groups could be used for parental selection and heterotic crossings in pigeon pea breeding in Benin.https://doi.org/10.1515/opag-2019-0046benincajanus cajanheritabilityphenotypic diversityagro-morphological traits |
| spellingShingle | Zavinon Fiacre Adoukonou-Sagbadja Hubert Bossikponnon Angelo Dossa Hermann Ahanhanzo Corneille Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin Open Agriculture benin cajanus cajan heritability phenotypic diversity agro-morphological traits |
| title | Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin |
| title_full | Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin |
| title_fullStr | Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin |
| title_full_unstemmed | Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin |
| title_short | Phenotypic diversity for agro-morphological traits in pigeon pea landraces [(Cajanus cajan L.) Millsp.] cultivated in southern Benin |
| title_sort | phenotypic diversity for agro morphological traits in pigeon pea landraces cajanus cajan l millsp cultivated in southern benin |
| topic | benin cajanus cajan heritability phenotypic diversity agro-morphological traits |
| url | https://doi.org/10.1515/opag-2019-0046 |
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