Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.)
<i>Dioscorea praehensilis</i> Benth. is a semi-wild yam species and a valuable source of resistance trait genes. To access the agronomic and tuber quality performance, eleven quantitative phenotypic traits were used to discriminate and identify promising accessions among 162 accessions o...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/3/682 |
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| author | Adeyinka S. Adewumi Paul A. Asare Idris I. Adejumobi Michael O. Adu Kingsley J. Taah Samuel Adewale Jean M. Mondo Paterne A. Agre |
| author_facet | Adeyinka S. Adewumi Paul A. Asare Idris I. Adejumobi Michael O. Adu Kingsley J. Taah Samuel Adewale Jean M. Mondo Paterne A. Agre |
| author_sort | Adeyinka S. Adewumi |
| collection | DOAJ |
| description | <i>Dioscorea praehensilis</i> Benth. is a semi-wild yam species and a valuable source of resistance trait genes. To access the agronomic and tuber quality performance, eleven quantitative phenotypic traits were used to discriminate and identify promising accessions among 162 accessions of <i>D. praehensilis</i> collected in Ghana. Significant and high genetic variability (<i>p</i> < 0.001) for all eleven quantitative traits was found among the evaluated accessions. Moderate broad-sense heritability (H<sup>2</sup>) (30–60%) was observed for all the evaluated quantitative traits except the response to YMV and tuber hardness. The accessions were clustered into three groups; each cluster displayed genotypes with good potentiality for the different traits evaluated. Path coefficient analysis revealed positive contributions (<i>p</i> < 0.01) of the number of tubers per plant, tuber length, tuber width, stem internode length, number of internodes, and tuber flesh hardness to the total tuber weight per plant. Through the multi-trait genotype–ideotype distance index (MGIDI), 24 accessions were identified from the 162 evaluated accessions as top-ranking and could be used as progenitors for trait introgression. The results of this study provide insight for future yam breeding and improvement programs in West Africa. |
| first_indexed | 2024-03-11T07:03:13Z |
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| id | doaj.art-26761327729c4caa9dad2c36b53bc44f |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-11T07:03:13Z |
| publishDate | 2023-02-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-26761327729c4caa9dad2c36b53bc44f2023-11-17T09:04:38ZengMDPI AGAgronomy2073-43952023-02-0113368210.3390/agronomy13030682Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.)Adeyinka S. Adewumi0Paul A. Asare1Idris I. Adejumobi2Michael O. Adu3Kingsley J. Taah4Samuel Adewale5Jean M. Mondo6Paterne A. Agre7Department of Crop Science, University of Cape Coast, University Post Office, Cape Coast CC-075-8216, GhanaDepartment of Crop Science, University of Cape Coast, University Post Office, Cape Coast CC-075-8216, GhanaInternational Institute of Tropical Agriculture, Ibadan 5320, NigeriaDepartment of Crop Science, University of Cape Coast, University Post Office, Cape Coast CC-075-8216, GhanaDepartment of Crop Science, University of Cape Coast, University Post Office, Cape Coast CC-075-8216, GhanaInternational Institute of Tropical Agriculture, Ibadan 5320, NigeriaInternational Institute of Tropical Agriculture, Ibadan 5320, NigeriaInternational Institute of Tropical Agriculture, Ibadan 5320, Nigeria<i>Dioscorea praehensilis</i> Benth. is a semi-wild yam species and a valuable source of resistance trait genes. To access the agronomic and tuber quality performance, eleven quantitative phenotypic traits were used to discriminate and identify promising accessions among 162 accessions of <i>D. praehensilis</i> collected in Ghana. Significant and high genetic variability (<i>p</i> < 0.001) for all eleven quantitative traits was found among the evaluated accessions. Moderate broad-sense heritability (H<sup>2</sup>) (30–60%) was observed for all the evaluated quantitative traits except the response to YMV and tuber hardness. The accessions were clustered into three groups; each cluster displayed genotypes with good potentiality for the different traits evaluated. Path coefficient analysis revealed positive contributions (<i>p</i> < 0.01) of the number of tubers per plant, tuber length, tuber width, stem internode length, number of internodes, and tuber flesh hardness to the total tuber weight per plant. Through the multi-trait genotype–ideotype distance index (MGIDI), 24 accessions were identified from the 162 evaluated accessions as top-ranking and could be used as progenitors for trait introgression. The results of this study provide insight for future yam breeding and improvement programs in West Africa.https://www.mdpi.com/2073-4395/13/3/682<i>D. praehensilis</i>quantitative traitsMGIDI indextrait profilingmulti-trait selection |
| spellingShingle | Adeyinka S. Adewumi Paul A. Asare Idris I. Adejumobi Michael O. Adu Kingsley J. Taah Samuel Adewale Jean M. Mondo Paterne A. Agre Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.) Agronomy <i>D. praehensilis</i> quantitative traits MGIDI index trait profiling multi-trait selection |
| title | Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.) |
| title_full | Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.) |
| title_fullStr | Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.) |
| title_full_unstemmed | Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.) |
| title_short | Multi-Trait Selection Index for Superior Agronomic and Tuber Quality Traits in Bush Yam (<i>Dioscorea praehensilis</i> Benth.) |
| title_sort | multi trait selection index for superior agronomic and tuber quality traits in bush yam i dioscorea praehensilis i benth |
| topic | <i>D. praehensilis</i> quantitative traits MGIDI index trait profiling multi-trait selection |
| url | https://www.mdpi.com/2073-4395/13/3/682 |
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