Genetic analysis of 12 lod conditioning morphological characteristics indicated several linkages in cowpea Vigna unguiculata (L.) Walp). Using both backcross and F2 joint segregation data, these 12 lod were assigned to five linkage groups. The lod Pgfor nodal pigmentation, Pf for purple flower, Pc for smooth seed coat, Na for narrow eye, and Br for brown seed coat make up linkage group 1 with t...

A laboratory study was conducted to investigate the effects of natural products on the reproduction and damage of Callosobruchus maculatus, the cowpea weevil, on cowpea seeds at Botswana College of Agriculture in Gaborone, Botswana. The cowpea variety Blackeye was used in the study. Fifty grams of each plant product (garlic, peppermint and chilies) was added to 500 g of the cowpea seeds. Findin...

Horismenus abnormicaulis sp. nov., H. patensis sp. nov. and H. zuleidae sp. nov. (Hymenoptera: Eulophidae), all authored by Pikart, Costa & Hansson, are described from material obtained from seed pods of Pithecellobium dulce (Roxb.) Benth. (Fabaceae) collected in Northeastern Brazil. The seed pods were infested with larvae of Coleoptera (Chrysomelidae (Bruchinae) and Curculionidae). The associa...

Cowpea, (Vigna unguiculata L. (Walp)) is an annual tropical grain legume. Often referred to as "poor man's meat", cowpea is one of the most important subsistence legumes cultivated in West Africa due to the high protein content of its seeds. However, African cowpea production can be seriously constrained by viral diseases that reduce yields. While twelve cowpea-infecting viruses have been repor...

The functional trait-based approach is increasingly used to predict responses of ecological communities to disturbances, but most studies target a single taxonomic group. Here, we assessed the resilience of a forest ecosystem to an overabundant herbivore population by assessing changes in 19 functional traits for plant, 13 traits for ground beetle and 16 traits for songbird communities after si...

In recent years, with the rapid development of molecular biology, molecular markers have been widely used in genetic breeding of various crops including cowpea. However, molecular researches in cowpea are lack of systematic summary. This review presents an overview of accomplishments on different aspects of molecular markers in cowpea genetic breeding, such as genetic diversity analysis, geneti...

Reduction of the quantity and quality forage is one main restrictions on productivity livestock systems. Tropical legumes are most important crops to improve feeds and, thus, for providing products human consumption in arid regions. In order investigate shift cultivation date two from summer spring weather conditions, a factorial experiment randomized complete block design with three replicatio...

Jatropha curcas is an oleaginous plant whose seed yield low. The present study aimed at evaluating pests associated with J. curcas. In regards to the densities, Denticera near divisella density was obtained 0.85 larvae per in sole farming and 0.70, 0.61, respectively when intercropped casava, maize cowpea. When cassava Stomphastis thraustica most encountered species a of 1.28 while 0.61 for 0.2...