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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...
ABA-mediated proline synthesis in cowpea leaves exposed to water deficiency and rehydration
Abscisic acid nitrogen metabolism osmotic adjustment
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2011/6/29
The aim of this study was (i) to evaluate the impact of water deficit and rehydration on nitrogen compounds and abscisic acid of Vigna unguiculata leaves, and (ii) to investigate the hypothesis that a...
Influence of component crop densities and planting patterns on maize production in dry land maize/cowpea intercropping systems
Planting density planting patterns plant growth
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2011/1/11
An experiment was conducted to test the effect of four plant densities (10, 20, 30 and 40,000 plants ha-1) and four planting patterns (1rowM:1rowC, 1rowM:2rowsC, 2rowsM:2rowsC and 2rowsM:4rowsC) on th...
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...
Effects of Cymbopogon citratus (lemon grass) and Ocimum suave (wild basil) applied as mixed and individual powders on the eggs laid and emergence of adult Callosobruchus maculatus (cowpea bruchids)
Cymbopogon citratus Ocimum suave Callosobruchus maculatus,
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2011/1/12
Post harvest losses of cowpea grain are a serious problem, in Africa, as much as 20 - 50% of grain is lost because of infestation due Callosobruchus maculatus (Cowpea bruchids). Plant mixtures contain...
Growth and yield of cassava as influenced by grain cowpea population density in Southeastern Nigeria
Cowpea LAI cassava plant density yield
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2011/1/12
The use of some leguminous crops for soil fertility improvement is being promoted for root and tuber crops production in Nigeria. Cowpea has a lot of advantages and is more compatible with cassava tha...
On-farm evaluation of improved cowpea-cereals cropping systems for crop-livestock farmers: Cereals-cowpea systems in Sudan savanna zone of Nigeria
Cowpea-cereal systems farmer participatory trial
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2011/1/12
From 2003 to 2005, a farmer’s participatory evaluation of improved cowpea-cereal cropping systems in the Sudan savanna zone of Nigeria involving over 1600 farmers was conducted. The system involved gr...
Participatory on-farm evaluation of improved legume-cereals cropping systems for crop-livestock farmers: Maize-double cowpea in Northern Guinea Savanna Zone of Nigeria
Cowpea-cereal systems farmer participatory trial
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2011/1/12
Farmer’s participatory evaluation of improved cowpea-maize cropping systems in the Northern Guinea Savanna of Nigeria involving over 1000 farmers was conducted from 2003 to 2005. The system involved g...
Through appropriate technology, an attempt was made to design and simulate a model of a manual cowpea thresher. Based on the outcome of threshing cowpea with conventional thresher and previous studies...
The role of intercropping maize (Zea mays L.) and Cowpea (Vigna unguiculata L.) on yield and soil chemical properties
Intercropping system maize - cowpea soil fertility and equivalent ratio
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2011/1/10
Farmers in Sistan region experience low crop yields of crops due to low soil fertility. Sole crops and intercrops of maize (Zea mays L.) and cowpea (Vigna unguiculata L.) were studied at eight plantin...
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...
Genotypic variability and stability of some grain yield components of Cowpea
Variances heritability repeatability loss of potential genetic gain stability
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2011/1/11
The grain yield components of eleven cowpea genotypes were studied in 2006 and 2007 at Abeokuta, Nigeria, to understand the sensitivity of the quantitative traits to heterogeneous environments.
Effect of Seed-Pretreatment with Some Plant Growth Regulators on Germination, Growth and Yield of Cowpea (Vigna sinensis Endl.)
Flowering Germination Gibberellic acid Indole butyric acid Indole-3-acetic acid Maleic hydrazide
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2009/8/6
Pretreatment of seeds of cowpea (Vigna sinensis Endl.) with indole-3-acetic acid and indole butyric acid had beneficial effects on their germination, dry matter production, flowering and yield. Treat...
Maize-Soybean-Cowpea Sequential Cropping as a Sustainable Crop Production for Acid-Infertile Clay Soils in Indonesia
Cowpea Erosion Maize Mulching Red acid soil Root growth Soybean
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2009/7/29
At mid-elevation terraces in the southern part of Sumatra Island, Indonesia, cassava is widely cultivated as one of the most important cash crops for farmers. However, the prominent cassava cultivatio...