Conhecimento, preservação e utilização da diversidade genética existente no germoplasma de feijão da pequena propriedade.

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Feijão preto BRS Valente: extensão de indicação para São Paulo, Paraná e Santa Catarina.

A BRS Valente é originária do cruzamento triplo envolvendo as cultivares Emgopa 201-Ouro, Onix e a linhagem AN 512586. Na obtenção da cultivar BRS Valente foi empregado o método de melhoramento de plantas autógamas denominado de "população" ou "massal" (bulk), que consistiu no avanço de geração mediante a colheita de todas as plantas da população, com modificação nas gerações F4 e F56 nas quais, após inoculação com o patótipo 89 (raça alfa Brasil) de Colletotrichum lindemuthianum, foram eliminadas as plantas suscetíveis.bitstream/CNPAF/19524/1/comt_44.pd

Combining a weed traits database with a population dynamics model predicts shifts in weed communities

A functional approach to predicting shifts in weed floras in response to management or environmental change requires the combination of data on weed traits with analytical frameworks that capture the filtering effect of selection pressures on traits. A weed traits database (WTDB) was designed, populated and analysed, initially using data for 19 common European weeds, to begin to consolidate trait data in a single repository. The initial choice of traits was driven by the requirements of empirical models of weed population dynamics to identify correlations between traits and model parameters. These relationships were used to build a generic model, operating at the level of functional traits, to simulate the impact of increasing herbicide and fertiliser use on virtual weeds along gradients of seed weight and maximum height. The model generated ‘fitness contours’ (defined as population growth rates) within this trait space in different scenarios, onto which two sets of weed species, defined as common or declining in the UK, were mapped. The effect of increasing inputs on the weed flora was successfully simulated; 77% of common species were predicted to have stable or increasing populations under high fertiliser and herbicide use, in contrast with only 29% of the species that have declined. Future development of the WTDB will aim to increase the number of species covered, incorporate a wider range of traits and analyse intraspecific variability under contrasting management and environments

BRSMG Majestoso: another common bean cultivar of carioca grain type for the state of Minas Gerais.

BRSMG Majestoso was developed by UFLA/Embrapa Rice and Beans/UFV/EPAMIG and released for the state of Minas Gerais, Brazil, in view of its high average yield, superior grain quality, anthracnose resistance and low susceptibility to angular leaf spot

BRSMG Majestoso: mais uma opção de cultivar de feijoeiro de grãos carioca para o Estado de Minas Gerais.

A cultivar BRSMG Majestoso originou-se do cruzamento entre as cultivares Ouro Negro, de grãos pretos, e Pérola, de grãos tipo carioca. Os cruzamentos foram efetuados no Departamento de Biologia da UFLA, e obtidas as sementes F1 , F2 e F3

BRSMG Majestoso: another common bean cultivar of carioca grain type for the state of Minas Gerais.

BRSMG Majestoso was developed by UFLA/Embrapa Rice and Beans/UFV/EPAMIG and released for the state of Minas Gerais, Brazil, in view of its high average yield, superior grain quality, anthracnose resistance and low susceptibility to angular leaf spot

BRS 7762 Supremo: cultivar de feijão comum de grãos preto e porte ereto para Minas Gerais.

A cultivar BRS 7762 Supremo é resultante do cruzamento biparental entre as linhagens W22-34 e VAN163, realizado na Embrapa Arroz e Feijão, em 1988. Apresenta hábito de crescimento indeterminado, com porte da planta ereto e boa resistência ao acamamento, em qualquer sistema de plantio. A arquitetura da planta possibilita a colheita mecânica; também é interessante os produtores que plantam feijão intercalado nos cafezais, prática muito comum no Estado de Minas Gerais, uma vez que a ausência de "guias" longas, facilita o manejo da cultura do feijoeiro e do café, ao qual está associada.bitstream/CNPAF-2009-09/27960/1/comt_160.pd

'BRS Valente' - black common bean.

'BRS Valente', developed by Embrapa Rice & Beans, has been indicated since 2001 for cropping in the states of Goiás/Distrito Federal, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Espírito Santo, Rio de Janeiro and Rio Grande do Sul. In 2002, the indication was extended to the states of São Paulo, Paraná and Santa Catarina. The grain is commercially classified as solid colored seed coat (black turtle soup) and presents superior agronomic traits such as yield potential, wide adaptation, good grain quality, erect plant type and resistance to lodging