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近年来,随着大豆品种和气候的变化,灰斑病在黑龙江大豆产区广泛发生,并呈逐年加重的趋势。为了筛选出可在生产或育种中利用的抗病材料,本试验在人工接种条件下,对1073份大豆材料进行抗灰斑病鉴定和评价,结果表明,高抗材料33份、抗病材料291份、中抗材料332份、感病材料381份、高感材料36份,分别占供试材料的3.1%、27.1%、30.9%、35.5%、3.4%。对1、6、7号出现频率较高的优势生理小种鉴定结果是高抗和抗病材料分别为161份、68份、95份,分别占供试材料的15%、6.3%、8.9%。在现行大豆种质资源中,具有比较丰富的抗病资源。
In recent years, with the change of soybean varieties and climate, gray leaf spot occurs widely in soybean producing area of Heilongjiang Province, and shows a trend of increasing year by year. In order to screen out the disease-resistant materials that can be used in the production or breeding, under the condition of artificial inoculation, 1073 soybean materials were identified and evaluated against gray leaf spot. The results showed that 33 high-resistant materials, 291 332 parts of medium resistant material, 381 parts of susceptible materials and 36 high sensitive materials, accounting for 3.1%, 27.1%, 30.9%, 35.5% and 3.4% of the tested materials respectively. The results of the identification of the race races with higher frequency of occurrence on Nos. 1, 6 and 7 were 161, 68 and 95, respectively, accounting for 15%, 6.3% and 8.9% of the tested materials respectively. . In the current soybean germplasm resources, with a wealth of disease-resistant resources.