Effect of planting method and spacing on the growth parameters of three Bambara groundnut cultivars in two Agro-climatic zones of Sierra Leone

John Mod Bendu 1, Augustine Mansaray 2, *, Alieu Mohamed Bah 3 and Edwin Julius Jeblar Momoh 1

1 Department of Agriculture and Food Security, Ernest Bai Koroma University of Science and Technology, Sierra Leone.
2 Department of Natural Resource Management, Njala Agricultural Research Center (NARC), Sierra Leone.
3 Department of Crop Science, School of Agriculture, Njala University, Sierra Leone.
 
Research Article
World Journal of Biology Pharmacy and Health Sciences, 2023, 13(01), 111-121.
Article DOI: 10.30574/wjbphs.2023.13.1.0269
Publication history: 
Received on 08November 2022; revised on 26 December 2022; accepted on 28 December 2022
 
Abstract: 
Field trials were conducted in two agro-climatic zones of the country (Lungi and Kabala) to evaluate the effect of planting methods and inter-row spacing on the growth parameters of three Bambara groundnut cultivars. The experiment consisted of a factorial 18 treatment combinations of two planting methods (mound and flat), three inter-row spacing (50 cm x 10 cm, 50 cm x 15 cm, and 50 cm x 20 cm), and three Bambara groundnut cultivars (Lubam1, Lubam 2, and Kabam 1). The study shows that planting Bambara groundnut using mounds produced higher values of the assessed growth parameters compared to planting Bambara groundnut on flat land. The result further shows that the wider inter-row spacing (50 cm x 20 cm) on average recorded the highest value for all the assessed growth parameters. Furthermore, Kabam1 was observed to have recorded the highest value for all the growth parameters in both locations. Thus, for optimum growth parameters to be achieved, it is recommended that Kabam1 should be planted on mound using the inter-row spacing of 50 cm x 20cm.
 
Keywords: 
Bambara groundnut; Cultivar; Growth parameter; Inter-row spacing; Planting method; Plant height
 
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