Cowpea is one of the most important grain legumes in sub-Saharan Africa (SSA). It provides strong support to the livelihood of small-scale farmers through its contributions to their nutritional security, income generation and soil fertility enhancement. Worldwide about 6.5 million metric tons of cowpea are produced annually on about 14.5 million hectares. The low productivity of cowpea is attri...

Sorghum biomass is a potential feedstock for lignocellulosic bioethanol production. The selection of suitable sorghum variety essential to obtain high ethanol yield. In this paper we screened varieties belonging sweet sorghum, post rainy and hybrid sorghum. These were based on their agronomic traits, amenability pretreatment methods, enzymatic digestibility. was pretreated using glycerol (60 %)...

In 1995, Cowpea aphid-borne mosaic virus (CABMV) of the family Potyviridae was reported to infect peanut (Arachis hypogaea L.) in Brazil (6). Leaf symptoms consisted of ring spots and blotches, and virus incidence was high when peanut was intercropped with cowpea (Vigna unguiculata (L.) Walp. subsp. unguiculata). CABMV was seed transmitted at approximately 0.15% in peanut and 6% in cowpea (6) a...

In cowpea protoplasts infected with cowpea mosaic virus, a bottom-component (B) RNA-encoded 60-kilodalton (60K) polypeptide is synthesized, which is membrane-bound and represents the direct precursor to the genome-bound protein VPg. The relationship between this VPg precursor and other B-RNA-encoded polypeptides was studied. Digestion of the B-RNA-encoded 170K and 84K polypeptides with Staphylo...

Field experiments were conducted at Yaba College of Technology Instructional and Research Farm during 2019/2020 wet dry seasons to investigate the performance cowpea chilli pepper intercropping for management insect pests cowpea. The experiment was arranged in alternate (chilli cowpea), strip cropping border around cowpea) sole a randomized complete block design (RCBD) replicated three times wi...

A field study was conducted to determine the fate of atrazine (6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine) within the root zone (0 to 90 cm) of a sandy soil cropped with sorghum [Sorghum bicolor (L.) Moench] in Gainesville, Florida. Atrazine was uniformly applied at a rate of 1.12 kg ai. ha(-1) to a sorghum crop under moderate irrigation, optimum irrigation, and no irrigation (ra...

In many parts of the developed world, the sale and use of phosphide is under strict regulations with adequate training of workers being a major perquisite before its use. In Nigeria this chemical is commonly available and in most cases users are largely untrained, therefore contamination of cowpea with residual phosphide post-fumigation does occur. The aim of this study is to determine the impa...

Cowpea is an important tropical crop. It provides a large proportion of the food resource for the African human population and their livestock. The yield and quality of cowpea have been dramatically improved through traditional breeding strategies for the past few decades. However, reports of heritability estimates for early growth of cowpea are rare. We designed a simple experiment to estimate...

Sorghum bicolor is an ancient plant that has been cultivated in North-eastern Africa for over 5000 years [1]. This is a cane like grass, up to 6 meters tall with large branched clusters of grains. The individual grains are around 3-4 mm in diameter and vary in colour from white, red, brown, yellow, purple, to black. The leaves resemble those of maize and grow rapidly. Sorghum grains of differen...

The existence of a hydrogen uptake host-regulated (Hup-hr) phenotype was established among the soybean bradyrhizobia. The Hup-hr phenotype is characterized by the expression of uptake hydrogenase activity in symbiosis with cowpea but not soybean. Uptake hydrogenase induction is not possible under free-living cultural conditions by using techniques developed for uptake hydrogenase-positive (Hup)...