高产多抗大豆新品种许豆8号的选育

许豆8号是许昌市农业科学研究所选育的高产多抗大豆新品种。2011年5月通过河南省农作物品种审定委员会审定,审定编号为豫审豆2011001。该品种为有限结荚习性,生育期110d,株高81.2cm,有效分枝3.2个,紫花,灰毛,褐色荚,单株有效荚数40.7个,单株粒数75.4粒,百粒重22.3g,籽粒圆形,种皮黄色,褐色脐。紫斑率0.4%,褐斑率1.3%。蛋白质(干基)含量40.30%,脂肪(干基)含量19.72%。2010年河南省大豆生产试验,平均产量为1 084.05kg/hm2,比对照豫豆22号增产11.29%,居7个参试品种第1位。

Breeding of New Soybean Variety Xudou 8 with High Yield and Multi-resistance

A new soybean variety Xudou 8 with high yield and multi-resistance was bred by the Xuchang Institute of Agricultural Sciences.It was examined and approved by Henan Crops Variety Examination and Approval committee in May,2011.The authorized No.was 2011001.The determinate podding habit variety had growth duration of 110 days.The plant height was 81.2 cm and the number of effective branches was 3.2.The numbers of effective pods and seeds were 40.7 and 75.4 per plant,respectively,and the 100 seeds weighted 22.3 g.Judged from exterior appearance,the variety possessed purple flowers and grayish brown maturated pods with grey pubescence.Its circular seed covered by the yellow seed coat had a brown hilum.In addition,purple seed stain rate and brown seed strain rate of Xudou 8 reached 0.4% and 1.3%,with the protein content(dry basis) of 40.30% and the fat content(dry basis) of 19.72%.Xudou 8 had an ave-rage yield of 1 084.05 kg/ha during the soybean production test of Henan province in 2010,increased by 11.29% over check variety Yudou No.22,and located the first place among the 7 tes-ted varieties.