Sorghum (Sorghum bicolor L.) has the potential to become a widespread commercial feedstock crop in Pennsylvania, either in rotation with maize (Zea mays L.) or grown alongside it. In other locations where sorghum has been grown for a long time, it is attacked by Colletotrichum sublineola Henn. ex Sacc. & Trotter, a fungal pathogen that causes anthracnose (Colletotrichum sublineola) leaf blight (ALB), thereby diminishing yield. Field surveys were carried out in 2011, 2012, and 2016 to monitor the presence of C. sublineola in commercial sorghum fields in six Pennsylvania locations. Senescing, lower leaves developed lesions that yielded Colletotrichum sp., including isolates of C. sublineola. The pathogen was not recovered from field debris, and ALB symptoms were not observed on the younger leaves of plants. In preparation for widespread cultivation of sorghum in Pennsylvania, we evaluated the performance, in field and greenhouse tests, of 158 experimental lines and commercial hybrids, which had been improved in several states in the United States and in other parts of the world. Sources of resistance to ALB and other foliar diseases were discovered that should be useful in breeding programs targeted for Pennsylvania and for northeastern U.S. climatic conditions. Lines received from ICRISAT, especially ICSB94, showed the highest level of resistance in the field.

中文翻译：

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宾夕法尼亚州高粱新种质的表现及其对炭疽病的反应

高粱 ( Sorghum bicolor L.) 有可能成为宾夕法尼亚州广泛使用的商业原料作物，可以与玉米 ( Zea mays L. )轮作或与玉米一起种植。在其他长期种植高粱的地方，它受到Colletotrichum sublineola Henn 的攻击。前萨克。& Trotter，一种导致炭疽病 ( Colletotrichum sublineola ) 叶枯病 (ALB)的真菌病原体，从而降低产量。2011、2012 和 2016 年进行了实地调查，以监测C的存在。 sublineola位于宾夕法尼亚州六个地点的商业高粱地。衰老的下部叶片发生病变，产生炭疽菌sp.，包括C 的分离株。 亚线奥拉。没有从田间碎片中回收病原体，并且在植物的幼叶上没有观察到 ALB 症状。为准备在宾夕法尼亚州广泛种植高粱，我们在田间和温室试验中评估了 158 个试验品系和商业杂交品种的性能，这些品种已在美国的几个州和世界其他地区得到改进。发现了对 ALB 和其他叶面病害的抗性来源，这些来源应该可用于针对宾夕法尼亚州和美国东北部气候条件的育种计划。从 ICRISAT 收到的线路，尤其是 ICSB94，显示出该领域最高水平的阻力。