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首页> 外文期刊>Plant Pathology Journal >Evaluation of Malian Sorghum Germplasm for Resistance Against Anthracnose
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Evaluation of Malian Sorghum Germplasm for Resistance Against Anthracnose

机译：马里高粱种质对炭疽病的抗性评价

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摘要

Host plant resistance provides an economical approach to stabilize crop production and enhance profitability. Highly variable pathogens, such as anthracnose, will require additional sources of host resistance for crop improvement. Sorghum germplasm from Mali, West Africa was artificially inoculated with anthracnose (Colletotrichum sublineolum) to identify sources of resistance to the disease. During the dry and wet growing seasons in 2003, 270 sorghum a'ccessions from the Mali working collection wereevaluated for anthracnose resistance in Puerto Rico. A resistant response was observed for 245 accessions during the dry season and for 215 accessions in the wet season. The results would indicate that climatic conditions were more favorable for diseasedevelopment during the wet season. The resistance response for 196 accessions was also effective against Texas isolates of the pathogen. The mode of inheritance for 41 accessions indicated the presence of dominant and recessive gene action. Genetic variation for resistance and resistance to multiple pathotypes of the disease would suggest that Mali sorghum germplasm would be useful for sorghum improvement.
机译：寄主植物的抗性提供了一种经济的方法来稳定农作物的产量并提高利润。炭疽病等高度易变的病原体将需要其他宿主抗药性来改善作物。用炭疽病（Colletotrichum sublineolum）人工接种了来自西非马里的高粱种质，以确定对该病具有抗药性的来源。在2003年的干燥和潮湿生长季节，对波多黎各的270份来自马里工作收集的高粱的炭疽病抗性进行了评估。在干旱季节对245个种质观察到抗性响应，而在雨季对215个种质观察到抗药性。结果表明，气候条件在雨季更有利于疾病的发展。 196种登录号的抗药性也对得克萨斯州病原体有效。 41个种质的遗传模式表明存在显性和隐性基因作用。抗药性和对该病多种病原体的抗药性的遗传变异表明，马里高粱种质将有助于提高高粱。

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