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大豆品种联合区域试验旨在评价美国和加拿大的育种者育出的最优良的参试大豆品系,做为一个新品种推广的产量潜力。试验设10个熟期组。00熟期组为北部边境目前生产大豆的地区,0～4熟期组是在北部中心各州及其同纬度地区从北至南划分,5～8熟期组是南部各州从北至南划分。每个熟期组每年都有新品系加入试验,同时也有通过充分试验被淘汰的品系。
The Soybean Variety Joint Regional Trial aims to evaluate the best tested soybean lines bred from breeders in the United States and Canada as a potential extension of a new variety. The experiment set 10 maturity group. 00 Maturing group is the area where soybeans are currently produced in the northern border. The 0 ~ 4 maturity groups are divided from north to south in the northern central states and their latitudes and the northern mature groups in the 5 to 8 mature groups are north to south. Each maturity group has new lines added to the test each year, as well as lines that have been eliminated through adequate testing.