Hartman G L, Huang Y H, Nelson R L, Noel G R
USDA, Agricultural Research Service, and Department of Crop Sciences, 70 EASB, 1101 W. Peabody.
Department of Crop Sciences.
Plant Dis. 1997 May;81(5):515-518. doi: 10.1094/PDIS.1997.81.5.515.
Sudden death syndrome (SDS) is an important soybean disease that potentially can be controlled by host plant resistance. In this study, over 800 soybean plant introductions (PIs), lines, and cultivars were screened for resistance to Fusarium solani. Of 728 PIs from China, PI 567.374 had mean foliar SDS severities significantly (P = 0.05) lower than PI 520.733 (resistant check) in both growth-chamber and greenhouse tests. In addition, PIs 567.315, 567.441C, 567.650B, and 567.664 had mean SDS severity ratings significantly (P = 0.05) lower than PI 520.733 in a growth-chamber test. Of 16 soybean cyst nematode-resistant entries tested, 5 had values lower than the resistant check, PI 520.733, with cv. Hartwig significantly lower in the first trial. In trial two, no entries were lower than the resistant check, although cvs. Bell and Hartwig were not significantly different from PI 520.733. In another experiment, few soybean cultivars or experimental lines had SDS severity ratings lower than PI 520.733 in any one of three trials. Some of the newly acquired PIs from China that exhibited low foliar SDS severity ratings may provide the sources of resistance needed to develop new SDS-resistant soybean breeding lines and cultivars.
猝死综合征（SDS）是一种重要的大豆病害，宿主植物抗性有可能对其进行控制。在本研究中，对800多个大豆引种、品系和品种进行了抗茄腐镰刀菌的筛选。在生长室和温室试验中，来自中国的728个引种中，PI 567.374的叶部SDS严重程度均值显著低于PI 520.733（抗性对照）（P = 0.05）。此外，在生长室试验中，PI 567.315、567.441C、567.650B和567.664的SDS严重程度评级均值显著低于PI 520.733（P = 0.05）。在测试的16个抗大豆孢囊线虫的材料中，有5个的值低于抗性对照PI 520.733，在第一次试验中，品种Hartwig的值显著更低。在第二次试验中，没有材料的值低于抗性对照，尽管品种Bell和Hartwig与PI 520.733没有显著差异。在另一项试验中，在三项试验的任何一项中，很少有大豆品种或试验品系的SDS严重程度评级低于PI 520.733。一些新获得的来自中国的、叶部SDS严重程度评级较低的引种可能为培育新的抗SDS大豆育种品系和品种提供所需的抗性来源。
