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通过对21个大豆疫霉根腐病菌株进行鉴定,共鉴定出6个生理小种,即1、3、9、11、17、21号生理小种,其中54%的菌株为1号生理小种,表明1号生理小种仍是黑龙江省的优势生理小种。同时对346份黑龙江省大豆种质进行了大豆疫霉根腐病的抗病性鉴定与评价,鉴定出抗疫霉根腐病的资源15份,占供试材料的4.3%;中抗材料12份,占供试材料的3.5%;其它材料均为感病,占供试材料的92.2%。结果表明黑龙江省大豆疫霉根腐病抗性资源较少。
Through the identification of 21 strains of Phytophthora sojae, 6 physiological races were identified, namely 1, 3, 9, 11, 17 and 21, of which 54% Species, indicating that physiological race 1 is still the dominant race in Heilongjiang Province. In the meantime, 346 soybean germplasms of Heilongjiang Province were identified and evaluated for the disease resistance of Phytophthora infestans, and 15 were identified as resistant to Phytophthora capsici, accounting for 4.3% of the tested materials; 12 Copies, accounting for 3.5% of the test material; other materials are susceptible, accounting for 92.2% of the test material. The results showed that there was less resistance to soybean root rot in Heilongjiang Province.