【摘要】 从1982—1985年共鉴定品种(系)1253份,总结了适合大量材料田间人工接种鉴定和评价方法。结果表明,抗细菌斑点病的抗源材料丰富,高抗材料322份,抗病材料247份,其余为中等以上感病材料。对于田间的人工接种鉴定结果的可靠性易受年度间气候差异的影响,提出设立感病标杆品种和苗期1—2片复叶展开时进行室内人工接种鉴定。植株发病与子叶发病不呈正相关,所以在选择抗源做杂交亲本时,应选择植株与子叶均抗病的材料。更多还原

【Abstract】 1253 soybean cultivars/lincs were tested for their resistance to bacterial blight in field miseries by artificial inoculation. The results showed that the resistant resource to the bacterial blight were in abu-rdance. Among the materials tested, 322 showed highly resistant, 247 showed resistance, the rest were moderately susceptible. As artificial inoculation in the fields were easy to be influenced by inter-annual climatic conditions, susceptible cultivars were added among the tested materials as check and seedlings just after unfolding of 1-2 enifolialates were artificially inoculated to reduce the error. These was no close correlation between disease rating index on infected cotyledons and that on infected plants, therefore only materials with both plant and cotyledons resistance could be selected for use as crossing parents.更多还原