Agronomic evaluation of Bambara groundnut, (Vigna subterranea (L.) Verdc)
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Keywords

Agronomic characters
Bambara groundnut
field trials
seed yield

How to Cite

Agronomic evaluation of Bambara groundnut, (Vigna subterranea (L.) Verdc). (2022). Tropical Agriculture, 99(3), 209-224. https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/7973

Abstract

Field experiments were carried out to evaluate the performance of a very important but underutilised leguminous crop Bambara groundnut, (Vigna subterranea (L.) Verdc) in the tropical humid rainforest agroecological zone of Nigeria. The study used 33 accessions of Bambara groundnut collected from the gene bank of International Institute of Tropical Agriculture (IITA), Ibadan, and was conducted at the Teaching and Research Farm of Department of Crop Science and Technology, Federal University of Technology, Owerri. The design of the experiment was a randomised block with three replications which was repeated three times in the late cropping seasons of 2014, 2015 and 2016, and the accessions were evaluated using 21 agronomic characters (germination, growth, and yield). The result showed significant differences (P ≤ 0.05) for most of the traits in each of the three cropping seasons. Agronomic characters displayed a varying level of variability among the accessions. The accessions exhibited outstanding agronomic characteristics and were stable in their performance in the three cropping seasons. Seed yield per plant differed significantly (P ≤ 0.05) among the accessions. TVSu 1688 consistently recorded the highest mean seed yields of 1060, 890 and 1234 g/plant in the 2014, 2015 and 2016 cropping seasons. TVSu 1638 had the second highest mean seed yields of 682, 758 and 987 g/plant in the 2014, 2015 and 2016 cropping seasons. TVSu 1819 recorded the lowest mean seed yields of 69, 80 and 75 g/plant respectively in the same three cropping seasons. The identified high yielding accessions are hopeful for seed yield improvement in Bambara groundnut.

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