论文部分内容阅读
由大豆疫霉菌引起的大豆疫霉根腐病是严重影响大豆生产的毁灭性病害之一。防治该病经济有效的方法是抗病育种,而抗性资源筛选又是抗病育种的基础。本研究采用下胚轴伤口接种法,用黑龙江省的大豆疫霉菌的1号优势生理小种对来自全国19个省份的415份野生大豆资源进行了抗性鉴定,表现抗病的有96份,占总鉴定资源的23.1%,表现中抗的资源有152份,占36.6%,表现感病的资源有167份,占40.2%。根据野生大豆的来源分析发现,在我国,抗性野生大豆资源分布较广泛。
Phytophthora sojae caused by Phytophthora sojae is one of the devastating diseases that seriously affect soybean production. A cost-effective way to prevent and treat the disease is to fight disease-resistant breeding, and screening of resistant resources is the foundation of disease-resistant breeding. In this study, the hypocotyl wound inoculation method, Heilongjiang Province, Phytophthora infestation No. 1 dominant race from the 19 provinces in the 415 wild soybean resources were identified, showing resistance to 96, Accounting for 23.1% of the total appraised resources. Among them, 152 are medium-resistant resources, accounting for 36.6% of the total appraised resources, 167 of which are apparently susceptible, accounting for 40.2%. According to the source of wild soybean analysis found that in our country, the distribution of resistant wild soybean resources more widely.