高产广适大豆新品种黔豆12的培育

为了选育适宜贵州省不同生态区域种植的高产、广适大豆新品种,以本地不同生态区域的地方品种资源材料作为亲本,按系谱选育法选育出高产、广适的春大豆新品种黔豆12。贵州省区试平均产量3 073.20 kg·hm^-2,蛋白质含量43.76%,脂肪含量19.2%。生育期114.2 d,株高50.5 cm,主茎节数12.9个,分枝数1.95个,单株荚数36.35个,单株粒数65.05粒,单株粒重13.95 g,百粒重24.05 g。紫花,灰毛,有限结荚,株系收敛,叶片椭圆,种皮黄色,种脐褐色。中抗大豆花叶病毒,适宜在贵州省不同生态区域推广种植。

Breeding of High-Yield Widespread New Soybean Variety Qiandou 12

In order to breed high-yield widespread new soybean varieties suitable for planting in different ecological regions of Guizhou province, the high-yield and widespread new spring soybean variety Qiandou 12 was bred by pedigree selection method using the new materials. The average yield of Qiandou 12 was 3 073.2 kg·ha-1 with the protein and the fat content of 43.76% and 19.20%, respectively in regional experiment in Guizhou province. The agronomic characters of Qiandou 12 were as follows: Growth period 114.2 d, plant height 50.5 cm, the number of main stem nodes 12.9, branch number 1.95, pod number 36.35, seed number per plant 65.05, weight per plant 13.95 g, 100-seeds weight 24.05 g, purple flower, gray hair, limited podding habits, compact plant type, oval leaves, yellow seed coat, brown seed umbilicus, moderate resistance to soybean mosaic virus. Qiandou 12 was suitable for different planting methods in different ecological regions in Guizhou province.