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克新7号是我所用克新2号作母本,292—20作父本杂交选育而成。1978年经黑龙江省品种审查委员会批准为推广品种。克新7号为中晚熟品种,生育期130天。高抗环腐病及晚疫病。用高浓度环腐病液接种鉴定,发病极轻微;种植克新7号可有效地防止环腐病的危害。对晚疫病有较强的田间抗性,能抑制晚疫病菌在植株体内扩展,即使在晚疫病发生重的年份,也只是在生育后期有轻微感染,对产量影响很小。
Kexin 7 is my new Kexin 2 used as the mother, 292-20 for the male parent breeding selection. In 1978 by the Heilongjiang Province Variety Review Committee approved the promotion of varieties. Ke new No. 7 in the late maturing varieties, growth period of 130 days. High resistance to ring rot and late blight. Cyclophilus fluid identification with high concentrations of inoculum, the incidence of very minor; planting Kexin 7 can effectively prevent the damage of ring rot. Strong resistance to late blight in the field, can inhibit the growth of Phytophthora infestans in the plant body, even in late blight heavy years, only a slight infection in late growth period, the impact on yield is small.