期刊
AGRONOMY-BASEL
卷 12, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/agronomy12081811
关键词
bambara groundnut; germplasm collection; phenotypic diversity; characterization; breeding; grain yield
资金
- Consortium of the Agricultural Research Council
- University of the Free State
- Durban University of Technology Broadening the Food Base projects in South Africa
- NRF chair
Bambara groundnut is a highly nutritious and underutilized legume crop with the potential to grow in unfavorable environments. This study characterized a southern African bambara groundnut germplasm collection and identified high-yielding accessions with positive correlations among measured traits.
Bambara groundnut is a highly nutritious underutilized legume crop, which can be cultivated in unfavorable environments, has the potential to address food security and can significantly contribute to climate-smart agriculture. The objectives of this study were to determine the phenotypic diversity and characterize a southern African bambara groundnut germplasm collection for grain yield and yield components, to identify superior bambara accessions and to determine the correlation between measured traits. The 100 bambara accessions were planted in two different locations over two seasons. There was significant variability among the accessions, locations, seasons and their interactions for all traits. Low broad-sense heritability values (<0.5) were observed for almost all traits. Significant positive correlations between all measured traits were observed. High-yielding accessions; WS 42 (AS), MV 67-1, K 5, AS 9, SCORE 1 and SB 12-3 were identified. Bambara accessions 224 (RF-7684), 179 (AB 16-5C), 121 (Red Ex Zimbabwe), 62 (SB 8-3), 9 (SB 4-1), 181 (SB 8-1B), 89 (AS 20), 217 (RF-6221), 94 (K 5), 177 (51 Se12) and 74 (AS 5) were associated with a high grain yield, plant spread and plant height. These accessions could be used as potential parents in a breeding program for the development of high-yielding varieties.
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