Genetic inferences in common bean differential cultivars to Colletotrichum lindemuthianum race 69/
Inferências genéticas em cultivares diferenciadoras de feijoeiro comum ao Colletotrichum lindemuthianum raça 69

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ID: 27072
2006
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Abstract
Anthracnose caused by the Colletotrichum lindemuthianum Sacc. et Magn fungus, is one of the most important diseases and can result in heavy yield losses to the common bean (Phaseolus vulgaris L.). Genetic inferences about resistance of cultivars: Michelite, Michigan Dark Red Kidney, Perry Marrow, Cornell 49-242, PI 207262, AB 136, G 2333 and their 21 diallel hybrids were obtained in relation to the reaction to 69 race by using Hayman’s method. The results showed that dominance effects were higher than additive effects to resistance of the related race. The order of parents in relation to dominant genes concentration obtained was: G 2333, AB 136, PI 207262, Cornell 49-242, Michigan Dark Red Kidney, Perry Marrow and Michelite. G 2333, AB 136 and PI 707262 parents are the most indicated for breeding programs to obtain anthracnose resistant cultivars.

A antracnose, causada pelo fungo Colletotrichum lindemuthianum Sacc cet Magn, é uma das mais importantes doenças e pode causar severas perdas ao cultivo do feijão comum (Phaseolus vulgaris L.). Inferências genéticas sobre a resistência de sete cultivares diferenciais de feijão comum (Michelite, Michigan Dark Red Kidney, Perry Marrow, Cornell 49-242, PI 207262, AB 136, G 2333) e seus 21 híbridos dialélicos foram obtidas em relação à raça 69, por meio da metodologia de Hayman. Os resultados mostraram que os efeitos dominantes foram superiores aos aditivos para resistência à referida raça. A ordem dos parentais em relação à concentração de genes dominantes obtida foi: G 2333, AB 136, PI 207262, Cornell 49-242, Michigan Dark Red Kidney, Perry Marrow e Michelite. Os parentais G 2333, AB 136 e PI 707262 são os mais indicados para programas de melhoramento visando à obtenção de cultivares resistentes à antracnose.

Reference Key
schuelter2006geneticsemina Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Schuelter, Adilson R.;Gonela, Adriana;Filho, Pedro Soares Vidigal;Gonçalves-Vidigal, Maria Celeste;Poletine, Juliana Parisotto;
Journal semina: ciências agrárias
Year 2006
DOI
DOI not found
URL
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/2453
Keywords Keywords not found

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