two-spotted spider mite, tetranychus urticae koch. is one of the most harmful pest of common bean in most areas of iran, including lorestan province. the appropriate unit and universe sampling of mite population were investigated in common bean fields in borujerd, dorud and azna in 2008. the results showed that samples should be taken from top, middle and bottom of the plant height. in addition...

M. R. Miles, United States Department of Agriculture–Agricultural Research Service (USDA-ARS), National Soybean Research Center, University of Illinois, Urbana 61801; M. A. Pastor-Corrales, USDA-ARS, Vegetable Laboratory, Beltsville, MD 20705; G. L. Hartman, USDA-ARS, National Soybean Research Center, Department of Crop Sciences, University of Illinois, Urbana; and R. D. Frederick, Foreign Dise...

ABSTRACT Among the efficient strategies to manage plant parasitic nematodes, use of resistant cultivars stands out for being frequently easiest and least expensive approach that can be adopted by farmers. However, common bean, in Brazil, few sources resistance have been identified so far. This study aimed assess reaction 81 bean genotypes most abundant harmful nematode species Brazilian crop fi...

introduction legumes after cereals are the second source of human food and in iran they are the second most important food after the wheat. legumes protein is four times as much as that of grains and 10 to 20 times as much as that of glandular plants. in addition, beans are planted in iran in a wide area and knowing optimal farming factors can be an important step in increasing them. one of the...

Folate (vitamin B9) deficiency causes several health problems globally. However, folate biofortification of major staple crops is one alternative that can be used to improve vitamin intakes in populations at risk. We increased the folate levels in common bean by engineering the pteridine branch required for their biosynthesis. GTP cyclohydrolase I from Arabidopsis (AtGchI) was stably introduced...

Reliable estimations of drought tolerance in wild plant populations have proved to be challenging and more accessible alternatives are desirable. With that in mind, an ecological diversity study was conducted based on the geographical origin of 104 wild common bean accessions to estimate drought tolerance in their natural habitats. Our wild population sample covered a range of mesic to very dry...

The identification of germplasm genetic variability in breeding programs of the common bean (Phaseolus vulgaris) is essential for determining the potential of each combination of parent plants to obtain superior genotypes. The present study aimed to estimated the extent of genetic diversity in 172 lineages and cultivars of the common bean by integrating five tests of value for cultivation and u...

Background. Legume seeds, including beans, are a good source of mineral constituents. The level of these compounds depends among other factors, on the species, cultivar and the methods of processing applied. However, there are no studies in the literature which deal with the content of mineral constituents in physiologically immature bean seeds. Material and methods. The aim of this study was t...

UNLABELLED Pseudomonas syringae pv. phaseolicola causes halo blight of the common bean, Phaseolus vulgaris, worldwide and remains difficult to control. Races of the pathogen cause either disease symptoms or a resistant hypersensitive response on a series of differentially reacting bean cultivars. The molecular genetics of the interaction between P. syringae pv. phaseolicola and bean, and the ev...

‘Caviano’ is a black bean cultivar recommended for Santa Catarina, being highly adaptable to the main grain-producing regions of state (mean grain yield 2315 kg ha-1). Compared previously released cultivars, Caviano has larger root system and desirable characteristics mechanical harvesting.