Research Article

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06/30/2019
Genetic divergence; Phaseolus vulgaris; Plant breeding

The common bean is widely distributed throughout Brazil and within Mato Grosso state. It has wide genetic variability and adaptability to various environmental conditions. We evaluated the genetic divergence and agronomic performance of common bean genotypes in order to initiate a bean breeding program in the region of Cáceres, MT. We included 58 genotypes (40 ... more

P.R.Jdos Santos; M.A.A. Barelli; R. Felipin-Azevedo; V.P. da Silva; T.A.S. Gilio; T.C. de Oliveira; D.L. Gonçalves; J.P. Poletine
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Diallel; Fusarium oxysporum f. sp. phaseoli; Phaseolus vulgaris

Diallel analysis and field tests have not been used in selecting for resistance to fusarium wilt in common beans (dry beans, Phaseolus vulgaris). Our goal was to select parents and segregating populations of dry bean (common bean) with black seed coat that are resistant to fusarium wilt and have high yield and high seed weight. Eight common bean cultivars ... more

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Fusarium wilt; Phaseolus vulgaris; Plant-pathogen interaction

Fusarium wilt caused by the fungus Fusarium oxysporum f. sp. phaseoli (Fop) is one of the most important diseases of common bean and occurs in many regions of the world. However, there is little available information that could elucidate when and where the fungus attacks common bean plants. To study the colonization of common bean by this ... more

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Common bean breeding; Disease resistance; Molecular markers; Phaseolus vulgaris; Progenies; Seed yield

Common beans are a key source of protein and are consumed daily by most of the Brazilian population. More than 70% of what is consumed in this country is classified as carioca beans, based on seed qualities and appearance. We evaluated progenies of carioca common beans of the Brazilian agriculture research agency (Embrapa) recurrent selection program. This ... more

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Adsorption process; Cellular ultrastructure; Comet assay and flow cytometry; MWCNTs; OTA; Phaseolus vulgaris; RAPD-PCR

Recently, carbon nanotubes (CNTs) are gaining attention in the field of agriculture as advanced approaches to minimize toxicity of mycotoxins for crop plants. We examined whether MWCNTs can be used to alleviate genotoxicity and DNA damage induced by ochratoxin A (OTA) in the common bean (Phaseolus vulgaris) by comparing the action of three OTA doses, prior ... more

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The amount of absorbed phosphorus directly impacts on the growth and grain yield of common bean plants. We evaluated dry matter production at different growth stages and grain yield of common bean genotypes in response to phosphorus availability in a nutrient solution and examined possible associations between these characters. The experiment was carried out in a ... more

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Nodulation; Phaseolus vulgaris; Rhizobium; SNF

Nitrogen (N) is the most important soil nutrient for common beans; the main sources are mineral N fertilizers and symbiotic N fixation (SNF). The common bean (Phaseolus vulgaris) is a N fixing species, but breeding programs have neglected this fact. We investigates black seeded elite lines grown with mineral N fertilization or using inoculation with ... more

P.A.S. Dias; P.G.S. Melo; L.C. Melo; T.L.P.O. Souza; L.C. Faria; E.P.B. Ferreira; H.S. Pereira
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AMMI; Anthracnose; Fusarium oxysporum f. sp. phaseoli; Phaseolus vulgaris; Stability

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Conservation; Genetic variability; Phaseolus vulgaris

Conservation of seeds ex situ is an important strategy for maintaining genetic resources. Mulatinho type common beans are widely cultivated and consumed in regions with extreme climatic conditions with semi-arid characteristics, including low fertility soils, and a dry and hot climate, such as in northern Minas Gerais state and the northeast region of ... more

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Cooking time; Phaseolus vulgaris; Seed darkening; Technological quality

High temperature is one of the main environmental factors that limit crop performance. It may also influence seed formation and quality. We compared the effect of high temperatures on seed darkening and cooking time of 12 genotypes of common beans. The experiments were sown in summer and in fall/winter growing seasons in three municipalities of São Paulo state ( ... more

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