A Note on the Effect of "Xanthomonas Sp." On The Morphology and Yield of Cowpea (Vigna Unguiculata (L.) Walp»

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1987
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Abstract
Cowpea bacterial pustule (Cap) caused by X'ilflthomonas sp. is one of the two major bacterial diseases so far recorded in Nigeria (OmolUnde, in press). Its symptoms are well described by Kaiser and Ramos (1979); Singh and Allen (1979) and Witliams (1975). Little work has been done on the effect of the pathogen on cowpea yield 'in Nigeria. The data available at Ore International Institute of Tropical Agriculture (UTA), Ibadan, Nigeria, are not quantified; rather, intensive screening of cowpea germplasm to identify sources of resistance to the pustule pathogen have been documented. The objective of this study therefore was to assess the potential effects of Xanthomonas sp. on both the morphology and seed yield of cowpea in the south western Nigeria.
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East African Agricultural And Forestry Journal, 52 (4), p. 298-307
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