Biological yield and proximate composition of bambara groundnut (Vigna subterranea (L) Verdc.) as influenced by sowing depths and soil types
Journal Title: Annals of West University of Timisoara, ser. Biology - Year 2016, Vol 19, Issue 2
Abstract
Seeding at the appropriate depth and planting under suitable soil types are important factors for improvement of crop performance. In light of this, potted experiment was carried out at the University of Ilorin Botanical Garden to examine the effects of different sowing depths and soil types on the growth, yield and seed quality of bambara groundnut. The experimental layout followed completely randomized design with four replications. The treatment consisted of 0, 1, 2, 4 6 and 8 cm sowing depths and three different soil types (sand, loam and clay). Sowing at a depth of 1 cm produced the highest seedling emergence, tallest plant height, highest number of leaves, highest leaf area, highest yield components in terms of number of pods per plants, pod weight and seed weight per plant. The deepest sowing depth (8 cm), produced the lowest values of all the aforementioned parameters. Growth attributes were found to be highest in sandy soil compared to loamy and clayey soils. However, yield components were higher in loamy soil than other soil types. Sowing depths of 4-8 cm and clayey soil increased the percentage ash, fibre and carbohydrate contents of the seeds when compared to other sowing depths and soil types respectively. Therefore, for improved seedling emergence and biological yield, sowing depth of 1 cm under suitable soil types such as sandy and loamy soils could be considered appropriate for the cultivation of this crop. Fluctuation exists in all the proximate composition. However, sowing depth of 4-8 cm and clayey soil had a remarkable influence on some of the proximate compositions.
Authors and Affiliations
Bolaji Umar OLAYINKA, Stephen Sunday AFOLAYAN, Raliat Temitope MOHAMMED, Ola Oladapo ABINDE, Emmanuel Obukohwo ETEJERE
Keywords
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