摘要
本文分析了伊利诺、依阿华、印第安纳三州四十年来培育的大豆品种系谱,目的是:1)了解这些大豆晶种的演变、遗传改良特点。2)了解这些大豆品种亲缘关系,为大豆育种工作提供借鉴。
According to Registration of Soybean Cultivats in Crcp Scitnce and Journal of the American Society of Agronomy, 81 Soybean cultivars. have been developed cooperatively by the Illinois, Iowa, Purdue Universities AES and Home Economics Experiment Station、USDA-ARS until 1987. The parental originations of the cultivars are mainly Mandarin, Mukden, Dunfield ,Manchu and their derivative(such as, Lincoln, HaroS-oy, Clark, Williams et al.).Mandarin, Mukden, Dunfield, Manchu were introduced into U. S. by USDA from Northeasten China in 1900's. Additionally, 49 out of 81 soybean cultivars had Mandarin's source of germplasm. Genetic variability caused by decreasing in genetic diversity is very danger. Now, soybean breeders in U. S. have recognized the problem and they are using world wide genetic diversity to solve the decrease of genetic diversity of soybean. In recent years, many American soybean cultivars introduced to Heilongjiang could not mature. It is difficult to plant soybean cultivars of the three states direectly in Heilongjiang for soybean production. But some characters of the three steles' Soybean cultivars are very valuable for our soybean breeding, such as, higher seed yield, better stem elasticity, better resistance to disease. Now we have got success to transfer the gene of iesistance to diseases from their cultivars. For example, Hefeng 27, 28, Heinong 33, Ha 82-4657 all have the gene of disease resistance from Rampage, Ohio, Clark 63. So introducing. foreign soybean germplasm, creating new variation, are the basic work for increasing genetic diversity of our soybean breeding materials.
出处
《大豆科学》
CAS
CSCD
北大核心
1989年第3期309-314,共6页
Soybean Science
