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- OpenAccess
Response of Vegetable Cowpea (Vigna unguiculata) to Intra-Row Spacing and Defoliation at Garkawa
並列摘要
A field experiment aimed at investigating the response of vegetable cowpea to intra-row spacing and defoliation at 4, 6 and 8 Weeks after Sowing (WAS) was conducted in 2009 at the Plateau State College of Agriculture, Garkawa, Nigeria (Southern guinea Savannah). Treatments consisted of four intra-row spacing (20, 30, 40, 50 cm, respectively) and four defoliation levels (0, 25, 50 and 75%, respectively). These were factorially combined and laid out in a Randomized Complete Block Design with three replications. Vegetable Cowpea growth related characters (plant height, shoot fresh weight) per plant increased significantly with decreasing levels of intra-row spacing. The intra-row spacing of 20 cm yielded 5.7 g edible leaf yields per plot. Defoliation level at 25% gave 6.8 edible leaf yields. The interaction between intra-row spacing at 20 cm and defoliation level at 25% produced the highest green pod yield of 404.7 kg/ha. Based on these findings, it would be suggested that harvesting 25% leaves of vegetable cowpea at a spacing of 20 cm at 4 and 6 WAS be practiced for optimum leaf and seed production.
延伸閱讀
- Tchiagam, J. B. N., Youmbi, E., Njintang, N. Y., Bell, J. M., & Maina, A. N. (2011). Generation Means Analysis of Seed Sucrose Content in Cowpea (＂Vigna unguiculata＂ L. Walp.). Asian Journal of Agricultural Sciences, 3(6), 475-480. https://www.airitilibrary.com/Article/Detail?DocID=20413890-201111-201512280006-201512280006-475-480
- O.D., A., L.A., O., J.A., A., S.T., A., K.A., B., & O.T., O. (2014). Assessment of Bruchid (Callosobruchus maculatus) Tolerance of Some Elite Cowpea (Vigna unguiculata) Varieties. Journal of Agriculture and Sustainability, 6(2), 164-178. https://www.airitilibrary.com/Article/Detail?DocID=P20151214012-201412-201512180028-201512180028-164-178
- Colman, B. A., Nunes, C. M., Masson, G. D. L., Barbosa, R. H., & Nunes, A. D. S. (2014). Induction of tolerance to water stress in the cowpea seed germination. Comunicata Scientiae, 5(4), 449-455. https://www.airitilibrary.com/Article/Detail?DocID=21775133-201412-201605200022-201605200022-449-455
- O., O. J., Aluko, A. O., Badmus, R. A., & A., O. A. (2011). Relationship between Laboratory Seed Quality Test and Field Performance on Cowpea (Vigna unguiculata [L]. Walp). International Journal of Agricultural Sciences, 1(1), v+25-27. https://www.airitilibrary.com/Article/Detail?DocID=P20160803002-201112-201608090036-201608090036-v+25-27
- Sá, F. V. D. S., Paiva, E. P. D., Torres, S. B., Brito, M. E. B., Frade, N. W. N. L. J. G., & Freitas, R. M. O. D. (2016). Seed germination and vigor of different cowpea cultivars under salt stress. Comunicata Scientiae, 7(4), 450-455. https://doi.org/10.14295/CS.v7i4.1541