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Growth, Yield, Water Status and Ionic Distribution Response of three Bambara Groundnut (Vigna subterranea (L.) Verdc.) Landraces Grown under Saline Conditions |
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V.D. Taffouo,
O.F. Wamba,
E. Youmbi,
G.V. Nono and A. Akoa |
Abstract:
The effects of NaCl salinity of the growth, yield, water status and ion partitioning response of three bambara groundnut (Vigna subterranea L. Verdc., landraces: White Seed Coat (WSC), Black Seed Coat (BSC) and Light Red Seed Coat (RSC)) were investigated with the long-term aim of extending the cultivation in the environments with varying salinity. A laboratory experiment was conducted where four NaCl applications (0, 50, 100 and 200 mM) were applied to a sandy soil. Na+, K+ concentrations and water content were determined. A similar study was conducted in the field at University of Douala research farm. The agronomic parameters evaluated during vegetative and harvesting phases were dry weight, number of pods per plant, number of seeds per pods, 1000 grains weight, total chlorophyll concentrations, grains yield and pods yield. The addition of NaCl resulted in a decrease of the K/Na ratio, water content partitioning of BSC and RSC landraces. Na+ concentration was significantly increased by NaCl treatment, while K+ concentration significantly decreased in all bambara groundnut landraces. NaCl had a negative effect on growth and yield component in BSC and RSC cultivars. There were a significant decrease in the dry weight of whole plant, the number of pods per plant, the number of seeds per pods, the 1000 grains weight, the chlorophyll content, the pods and grains yield. In the analysis of combining growth and yield components of the parameters measured, the results suggested that WSC cultivar was relatively more tolerant to salinity than others; suggesting that WSC cultivar could be cultivated in the coastal and semi-arid saline soils and studied further as a source of genes for salt tolerance.
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How to cite this article:
V.D. Taffouo, O.F. Wamba, E. Youmbi, G.V. Nono and A. Akoa, 2010. Growth, Yield, Water Status and Ionic Distribution Response of three Bambara Groundnut (Vigna subterranea (L.) Verdc.) Landraces Grown under Saline Conditions. International Journal of Botany, 6: 53-58.
DOI: 10.3923/ijb.2010.53.58
URL: https://scialert.net/abstract/?doi=ijb.2010.53.58
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