The DNA content of bacteroids from 22 different Rhizobium-legume associations was compared to that of the corresponding free living Rhizobium species using laser flow microfluorometry. In all 18 effective associations, the bacteroids had either similar or higher DNA content than the free living rhizobia. Bacteroid populations isolated from effective clover (Trifolium repens) and alfalfa (Medica...

Previous investigations into recombination in cowpea chlorotic mottle bromovirus (CCMV) resulted in the recovery of an unusual recombinant virus, 3-57, which caused a symptomless infection of cowpeas but formed no detectable virions. Sequence analysis of cDNA clones derived from 3-57 determined that mutations near the 5' terminus of the capsid protein gene introduced an early translational term...

ABSTRACT Cowpea (Vigna unguiculata) is an economically and nutritionally important crop. However, cowpeas are subject to attack by insect pests that reduce the quality nutritional value of grains during storage. The use plant-based products as alternative control has been highlighted for their low toxicity on environment human health. This study aimed evaluate bioactivity different plant extrac...

Insecticidal activity of essential oil extracted from Morinda lucida was tested on pulse beetle Callosobruchus maculatus, which is a pest that causes serious damage to several pulses. The insecticidal activity was compared with two pesticides, Phostoxin and Primo-ban-20. 120 mixed sex adult C. maculatus were introduced, along with 30 g of cowpeas. Four concentrations (0.40, 0.20, 0.10, and 0.05...

Physicochemical and sensory properties of chicken nuggets extended with flours processed from fermented cowpeas (FCF) and fermented partially defatted peanuts (FPDPF) were investigated. Addition of FCF or FPDPF decreased moisture loss and fat gain. Reductions in protein content of nuggets were 20.2% and 15.8% when, respectively, 20% FCF and 20% FPDPF were added. Regardless oflevel ofFPDPF, nugg...

Bioactive compounds, which are naturally produced in plants, have been concerned with the food and pharmaceutical industries because of the pharmacological effects on humans. In this study, the individual phenolics of six legumes during germination and antioxidant capacity from sprout extracts were determined. It was found that the phenolic content significantly increased during germination in ...

Strains of Rhizobium meliloti, Rhizobium sp. nodulating cowpeas, and R. phaseoli derived from cultures susceptible to tetramethylthiuram disulfide (thiram), 2,3-dichloro-1,4-naphthoquinone (phygon), and 2,3,5,6-tetrachloro-p-benzoquinone (spergon), respectively, grew in the presence of high concentrations of the fungicides and converted them to products not toxic to the sensitive rhizobia. The ...

Developing countries in Asia widely use manual seed broadcasting methods due to a lack of appropriate seeding machinery. The agricultural sector is currently facing labor shortages and high costs, especially seasonal for transplanting operations. However, the primary constraint adopting existing seeders small-scale farmers developing initial purchase costs. Therefore, locally commercial accessi...

After peanuts and cowpeas ( Vigna unguiculata ), the Bambara groundnut subterranea (L.) Verdc) is third most significant food legume in Africa. It characteristically grown marginal soils, drought tolerant, also has potential for nitrogen fixation. Despite that, year-on-year yields are on a gradual decline due to combination of abiotic biotic stresses such as uneven annual rainfall climate-induc...