论文部分内容阅读
近年来,大豆灰斑病在我国的许多省份均有发生,尤以黑龙江省最为严重,使大豆的产量和品质明显下降。十几年来,我们利用优良抗源先后育成几个抗灰斑病的大豆新品种。现将五个高抗灰斑病综合性状较好的抗源介绍如下。合交68—231 黑龙江省农科院合江农科所从杂交后代中选出。经两年重复接种鉴定,叶部发病1级,灰斑粒率在5%以下,属高抗灰斑病品种。利用该抗源作亲本选育出合丰30号抗病新品种。
In recent years, soybean gray spot disease occurs in many provinces in our country, especially in Heilongjiang Province, which causes the yield and quality of soybean to decline obviously. For more than a decade, we have successfully developed several new varieties of soybean with resistance to Cercospora solanacearum by using good resistance sources. Now five high resistance to gray leaf disease better comprehensive introduction of anti-sources are as follows. Crosses 68-231 Heilongjiang Academy of Agricultural Sciences Hejiang Agricultural Sciences selected from the offspring of hybrids. After two years of repeated inoculation identification, the incidence of leaf 1, gray spot rate of 5% or less, is a high resistance to gray spot varieties. Using this resistant source as a parent to breed new varieties of Hefeng No. 30.