the response of plants to drought stress depends on several factors including the plant developmental stage and the length and severity of the stress applied. common bean (phaseolus vulgaris l.) is the most important pulse crop that is cultivated worldwide for human consumption. understanding of the mechanisms responsible for its response to drought is, therefore, essential. an increasing numbe...

common bacterial blight (cbb) caused by xanthomonas axonopodis pv. phaseoli is a serious disease of bean fields in iran and the world. chemical control of cbb is inefficient, therefore the use of resistant genotypes with stability production is the most suitable alternative. stability and adaptability of 26 bean genotypes yield in the presence and absence of cbb were evaluated in agricultural r...

The faba bean (Vicia faba L.) is a potential source of proteins for poultry, mainly for laying hens whose protein requirements are lower than those of other birds such as growing broilers and turkeys. However, this feedstuff contains anti-nutritional factors, that is, vicine (V) and convicine (C) that are already known to reduce laying hen performance. The aim of the experiment reported here wa...

To determine whether plant genotype can affect long-term herbivore population dynamics, we used a density manipulation experiment to compare the dynamics of Mexican bean beetle populations living on four genotypes of soybeans. Five densities of beetle populations were created on each plant genotype. Each combination of density and genotype was replicated four times, yielding 80 experimental bee...

Genetic variation in wild relatives, GenBank accessions, landraces, and cultivars can unlock key alleles for the traits of interest breeding programs. Breeding programs often utilize different strategies to quantify source heritable target traits. One neglected area study is root diverse genotypes, this especially case aluminum toxicity effects on legumes such as common bean, which most used pu...

Background: Common bean (Phaseolus vulgaris L.) is a globally important grain and vegetable legume crop, providing substantial portion of the diet protein minerals for many people in developing world. However, genetic studies improvement on this crop has long been impeded by its recalcitrance to Agrobacterium-mediated whole plant transformation. Established Agrobacterium rhizogenes-based hairy ...

Thirty genotypes of Dolichos bean (Lablab purpureus) were evaluated to study the genetic variability on yield, yield contributing and related characters viz. days to 50% flowering, days to first pod set, days to maturity, number of pods per cluster, pod length, width of pod, weight of 10 green pods, number of single podded clusters per plant, number of pods per plant and protein content. The ra...

Botanically beans belong to the legume tribe Phaseoleae within the Papilionoideae-Leguminosae (Freytag & Debouck 2002). Bean species are all from the Americas, and their presence in other parts of the world is due to historic movements by humans after 1492. Although Amerindians may have used several species in pre-Columbian times, only five species have been ñiUy domesticated from still existin...

In order to study seed yield and seed yield components in bean under reduced irrigation condition and assessment drought tolerance of genotypes, 15 lines of White beans were evaluated in two separate RCB design with 3 replications under stress and non stress conditions. Analysis of variance showed that there were significant differences among varieties in terms of traits under study, indicating...

Introduction The whitefly Bemisia tabaci Genn. (Homoptera:Aleyrodidae) has caused millions of dollars worth of crop losses in tropical and subtropical agricultural regions in the five continents of the world (Brown, 1994). Besides the direct damage caused by B. tabaci (plant nutrient loss; physiological disorders; honey dew excretions, etc), the sweet potato or cotton whitefly is an efficient v...