搜索结果: 1-11 共查到“农学 Cowpea Vigna Unguiculata L. Walp.”相关记录11条 . 查询时间(0.139 秒)
Field evaluation of extracts of five Nigerian spices for control of post-flowering insect pests of cowpea, Vigna unguiculata (L.) Walp.
spices extracts Maruca vitrata Clavigralla tomentosicollis control cowpea
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2015/2/2
The insecticidal efficacy of aqueous extracts of five Nigerian spices (Piper guineense Schum and Thonn., Aframomum melegueta (Roscoe), Xylopia aethiopica (Dunal) A. Rich., Zingiber officinale L. and C...
Influence of phosphorus on the performance of cowpea (Vigna unguiculata (L) Walp.) varieties in the Sudan savanna of Nigeria
Cowpea [Vigna Unguiculata (L.) Walp.] Phosphorus Sudan Savanna Nigeria
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2013/3/4
Savanna regions of Nigeria are deficient in nitrogen and phosphorus, which retard the growth and yield of crops. Therefore, a study was conducted in the wet season of 2006 at the Dry Land Teaching and...
Effect of Intra-row Spacing on Growth and Yield of Three Cowpea (Vigna unguiculata L. Walp.) Varieties under Rainfed
Cowpea intra-row spacing growth yield
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2010/11/16
A field experiment was carried out under rainy season 2006-07, at two locations (Kordofan
university farm and Jabal Kordofan ) in Sheikan District, North Kordofan State, Sudan, to investigate the eff...
Effect of Water Potentials on Growth and Yield of Cowpea (Vigna Unguiculata [L] Walp)
Water Potentials Growth and Yield of Cowpea
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2010/11/15
A field experiment was conducted for two consecutive seasons during 2003/2004 and 2004/2005
in the Demonstration Farm of the Faculty of Agriculture, University of Khartoum at Shambat to study the eff...
Effect of stage and intensity of defoliation on the performance of vegetable cowpea (Vigna unguiculata (L.) Walp)
Defoliation intensity vegetable cowpea vegetative characters
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2011/1/12
Field experiments were conducted in 2006 and 2007 on the experimental farm of the Institute for Agricultural Research, Ahmadu Bello University, Samaru, Zaria to determine the effect of stage and inten...
A comparative study of the bionomics of Clavigralla tomentosicollis Stäl (Hemiptera: Coreidae) on three varieties of cowpea (Vigna unguiculata (L.) Walp)
Clavigralla tomentosicollis cowpea varieties pod-sucking bug
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2011/1/10
Clavigralla tomentosicollis Stäl, is a notorious pod-sucking bug of cowpea in tropical agro - ecosystems. The improvement of cowpea grain yields by screening of cowpea lines for resistance to pod...
Germplasm evaluation and enhancement for the development of cowpea (Vigna unguiculata (L.) Walp dual-purpose F2 genotypes
Vigna unguiculata germplasm harvest index dual-purpose
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2011/1/10
Cowpea is an important grain legume as well as fodder crop, especially in the dry regions of South Africa. The production of this crop has been below average because of low genetic variation and culti...
Effect of Chemical Mutagen on Expression of Characters in Arid Legume Pulse -Cowpea (Vigna unguiculata (L.) Walp.)
cowpea EMS genetic advance heritability mutagen seed colour yield characters
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2010/11/15
Studies on chemical induced mutagenesis, Ethyl Methane Sulphonate (EMS) were performed
by exposing the healthy and dry seeds of cowpea variety Co 4 to E MS at 10, 20, 30, 40 and 50mM. The study was e...
Assessment of selection techniques in genotype X environment interaction in cowpea Vigna unguiculata（L.）walp
Genotype X environment interaction selection techniques cowpea Vigna unguiculata
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2009/3/3
Ten genotypes of cowpea were grown in four environments comprising the early and late seasons of Ogbomoso and Abeokuta locations in 2005 and 2006. Joint linear regression analysis indicated the pres...
Effect of vermicompost enriched with rock phosphate on the yield and uptake of nutrients in cowpea（Vigna unguiculata [L. ] Walp)
Cowpea nutrient uptake vermicompost yield
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2009/2/20
A field experiment was conducted in a Rhodic Haplustox during 1997-98 to study the effect of enriched vermicompost on the yield and uptake of nutrients by cowpea. Among the different treatments trie...
Effect of thiourea application on cowpea [Vigna unguiculata（L.）Walp.] productivity under rainfed conditions
seed soaking foliar spray BC ratio harvest index
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2009/2/20
Field experiments in the sandy loam soils of Pattambi during the kharif seasons of 2000-2002 revealed that thiourea application consistently increased cowpea productivity under rainfed conditions....