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大豆细菌性斑点病是江淮地区大豆生产中常见病害,但大豆种质资源抗性水平及抗源鉴定工作较少。本研究采用对大豆叶片正反面高压喷雾的接种方法鉴定了江淮地区309份育成品种(系)及亲本材料对大豆细菌性斑点病生理小种S1的抗感反应。结果表明:供试材料抗性差异明显,分别鉴定出高抗和中抗材料61和68份,占总数的19.74%和22.1%,表现为感病和高感的材料共有180份,占总数的58.25%。适合淮北和淮南地区种植的140和169份品种(系)中,抗病材料(高抗+中抗)分别有68和61份,感病材料(感病+高感)分别有72和108份,江淮淮北地区抗病品种(系)的比例高于淮南地区。供试材料抗性反应等级与成熟期等性状存在相关性。同时还发掘出徐豆18、南农99-6等高抗品种,及具有高蛋白、高油特性的优质抗性种质材料。
Soybean bacterial speckle disease is a common disease in soybean production in the Jianghuai region, but the level of soybean germplasm resources resistance and identification of anti-source are few. In this study, the inoculation method of high pressure sprays on the front and back of soybean leaves was used to identify the anti-susceptibility responses of 309 breeding cultivars (lines) and their parental materials to soybean bacterial speckling races S1 in Jianghuai area. The results showed that there were significant differences in the resistance of the tested materials. 61 and 68 high and medium resistant materials were identified, accounting for 19.74% and 22.1% of the total, respectively. A total of 180 materials showed susceptibility and high susceptibility, accounting for a total of 58.25%. Among the 140 and 169 cultivars (lines) suitable for planting in Huaibei and Huainan, 68 and 61 were resistant to disease (high resistance + moderate resistance) respectively, and 72 and 108 were susceptible materials (susceptibility + high susceptibility) , The proportion of resistant varieties (lines) in the Jianghuai and Huaibei areas was higher than that in Huainan area. There was a correlation between the resistance level and maturity of the tested materials. At the same time also excavated Xu bean 18, South Nong 99-6 and other high resistant varieties, and has high protein, high oil properties of high-quality resistant germplasm material.