【摘要】 本文探讨了大豆品种对大豆花叶病毒两个致病力不同的毒株(SMV-y51,SMV-82-11),田间成株抗性和种粒的抗性反应,指出大豆品种成株抗性与种粒抗性受不同基因所控制,此两种抗性对某些品种是不能互相代替的。在大豆抗花叶病育种中同时要注意这两个抗性,选择双抗型亲本。对黑龙江省来说,选育抗种粒斑驳的新品种,改善大豆商品品质更为迫切。提出铁6915,铁7105,梅里特,吉林1号,7588—13,东农35等品种是良好的抗种粒斑驳抗源材料。更多还原

【Abstract】 In the present paper field resistance of grown plant to two isolates (SMVy5l, SMV-82-11) of soybean mosaic virus with different pathogeni city is discussed. The results of our genetic study revealedtbat grown plant resistance and resistance to seed mottling were controlled by different genes. On certain soybean varieties one type of resistance can not be replaced by another one. In breeding program for mosaic virus resistance, both of the two types of resistance should be considered, and parents chosen for hybridization should be resistant to both types. For the improvement of commercial soybean seed quality in Heilong-jiang province,it seems that breeding for resistance to seed mottling is urgent. Cultivars such as Tie 6951, Tie 7105, Merit, Jilin 1, 7588-13, Dongnon 35 are good germplasms for the source of resistance to seed mottling.更多还原