Estimates of Genetic Parameters in Bambara Groundnut {Vigna subterranea (L.) VERDC.}
| Autor: | Grace Ovute Chimdi, Nwakuche Chinenye Onwubiko, M. I. Uguru |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Coefficient of variation Plant Science Heritability Biology 01 natural sciences food.food 03 medical and health sciences Horticulture 030104 developmental biology food Point of delivery Genetic variation Variance components Genetic variability Analysis of variance Vigna subterranea 010606 plant biology & botany Biotechnology |
| Zdroj: | Plant Breeding and Biotechnology. 7:295-301 |
| ISSN: | 2287-9366 2287-9358 |
| Popis: | Field evaluation of 33 Bambara groundnut lines were carried out to estimate genetic variability, heritability and genetic advance. One-way analysis of variance (ANOVA) result showed significant differences for 14 of the 17 agronomic traits studied. The results on the variance components revealed that phenotypic variance had values (vigour index 2.30, pod length 10.09, seed length 1.64) that were slightly higher than the respective genotypic variance (vigour index 1.68, pod length 9.88, seed length 0.26). Similarly, the values (number of branches 41.91, number of nodes 68.72, internode length 59.02) of phenotypic coefficient of variation (PCV) were slightly higher than the corresponding genotypic coefficient of variation (GCV) (number of branches 40.11, number of nodes 66.98, internode length 57.31), suggesting a substantial genetic variability that can serve as a base for Bambara groundnut improvement. High estimates of heritability were observed for most characters like number of branches (95.70%), number of nodes (97.46%), internode length (97.10%), pod length (97.91%), and seed length (93.79%). Likewise, genetic advance values for most traits were high, pod length (201), number of nodes (200), internode length (200), number of branches (197) and seed yield (195), implying that improvement of seed yield in Bambara groundnut can be achieved through direct selection. |
| Databáze: | OpenAIRE |
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