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通过对极早熟、早熟、中熟和中晚熟类型大豆不同播期、不同地区的试验,其结果表明,毕节地区大豆生态类型具有如下特点:生育日数长,极早熟品种为100天、早熟品种为113天、中熟品种为124天、中晚熟为134天。生育日数随海拔升高而增加。基本营养生长期长,中晚熟品种58.2天、中熟61.8天、早熟53.3天、极早熟41.5天。早播比晚播增长18天;高海拔比低海拔增长20天左右。大豆对光反应弱,而对温度反应强。大豆的生殖生长期较长,且同一地区同一品种比较稳定,不受播期影响。大豆植株高度及百粒重均较高,株高为36.3～63.1cm;百粒重为16.4～18.7g。大豆蛋白质含量也较高,为43.6％左右。
The results showed that the ecological type of soybean in Bijie Prefecture had the following characteristics: long days of breeding, very early maturing varieties of 100 days, early maturing varieties of 113 days, medium maturing varieties 124 days, late-maturing 134 days. Birth days increase with altitude. The basic vegetative growth period is middle and late maturing varieties 58.2 days, medium maturing 61.8 days, precocious 53.3 days, very early maturing 41.5 days. Early-sowing increased by 18 days than the late sowing; high-altitude than low-altitude increase of about 20 days. Soybean light reaction is weak, and strong reaction to temperature. Soybean reproductive growth period is longer, and the same species of the same area is relatively stable, not affected by the sowing date. Soybean plant height and hundred weight are higher, height 36.3 ~ 63.1cm; hundred weight is 16.4 ~ 18.7g. Soy protein content is also higher, about 43.6%.