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中国科学院遗传研究所采用优大高密繁种法,进行良种化生产,是解决当前生产上品种病、杂、退化的有效措施。这一技术搞得好,可以提单产高50％以上。优大高密繁种法的技术要点是:“优”指选优种株。在秋收季节从严重病、杂、退化的田间,选择一棵优种株作为原种;“大”指大株育苗。在早春把优种株的薯单独育出壮苗并选择水肥条件充足的地方培植成几个大株薯,令其充分长秧,每株占地面积为1.5平方米;“高”是指高倍繁殖。从大株薯的秧苗上剪单、双叶节的短壮苗,
The Institute of Genetics, Chinese Academy of Sciences, adopts the method of superior and high density breeding in order to carry out seed production. It is an effective measure to solve the current disease, miscellaneous and degradations in production. This technology is well done, you can mention more than 50% higher yield. The technical points of the high-density and high-density variety method are: “Excellent” means the best type of strain. In the autumn harvest season from a serious disease, miscellaneous, degraded field, choose a superior strain as the original species; “big” refers to the big plant nursery. In early spring the best strains of potato alone nurtured strong seedlings and choose adequate water and fertile conditions to cultivate into several large potatoes, make it full of seedlings, each plant covers an area of 1.5 square meters; “high” means high Breeding. Cut from a large plant potato seedlings, bisexual sections of the short seedlings,