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在温/网室人工接种高病害压的条件下,对筛选的300份综合农艺性状优良的大豆种质资源进行抗大豆花叶病毒(Soybean mosaic virus,SMV)流行株系SC3和SC7的鉴定。结果表明,对SMV流行株系SC3表现抗病(高抗和抗病)的品种有84份,占鉴定品种的28.0%,对SC7表现抗病的有105份,占35.0%;兼抗SC3和SC7的有60份,占鉴定的20.0%;其中对SC3和SC7均表现高抗的品种如皖豆16、晋遗21、M0633和P9594等抗病资源用于大田生产将对SMV的流行起到控制作用。研究还发现,地方品种对强毒株系SC7有着较多的抗性资源,来自山西的4份种质资源对SC3和SC7的抗性均在中抗以上,可作为抗源用于抗病品种选育和与抗性相关的研究。对300份大豆种质资源的小区平均产量分析发现,高抗SMV品种的小区平均产量(514.39g)与高感品种的小区平均产量(517.34g)没有显著差异,由此可初步推测育成抗SMV且高产的品种是可能的。
The 300 soybean germplasm resources with good agronomic traits were screened for SC3 and SC7, which are epidemic strains of Soybean mosaic virus (SMV), under the condition of artificial inoculation with high disease pressure in warm / net room. The results showed that there were 84 resistant varieties (high resistance and disease resistance) to SC3, accounting for 28.0% of the tested varieties and 105 to SC7, accounting for 35.0% 60 for SC7 and 20.0% for identification; the resistant varieties such as Wandu 16, Jinjiu 21, M0633 and P9594, which are high resistant to both SC3 and SC7, were used for field production to fight the epidemic of SMV Control effect. The study also found that local breeds have more resistant resources to the virulent strain SC7. The resistance of four germplasm resources from Shanxi to SC3 and SC7 are above the resistance level, and can be used as the resistant source for the resistant varieties Breeding and resistance-related research. The analysis of the average yield of 300 soybean germplasms showed that there was no significant difference between the average yield of the high-resistant SMV varieties (514.39g) and the average yield of the high-yielding cultivars (517.34g). Therefore, And high-yielding varieties are possible.