优良豆科牧草大翼豆06-2选育研究

以豆科牧草大翼豆Macroptilium atropur-pureum(dc.)urbcv.Siratro]为材料,通过单株选择,培育出优质高产的豆科牧草大翼豆06-2M.atropur-pureum(dc.)urbcv.Siratro No.06-2],并对其进行品种比较试验和区域试验。结果表明,大翼豆06-2适应性广,抗寒,耐轻霜,丰产性能好,年平均鲜草产量高达42822.0kg/hm2,比对照品种高20.3%~33.3%。此外,大翼豆06-2生长速度快,蛋白质含量高达19.0%,具有较高的营养价值,有望成为亚热带地区的优良豆科牧草品种。

Breeding of an Eminent Leguminous Grass of Macroptiliums atropur-pureum (DC.) Urb cv.Siratro No.06-2

An eminent leguminous grass of Macroptilium atropur-pureum(dc.) urb cv.Siratro No.06-2 was bred with M.atropur-pureum(dc.) urb cv.Siratro by individual plant selection.And then the variety test and regional test were carried out between M.atropur-pureum(dc.) urb cv.Siratro No.06-2 and other grasses.The results showed that M.atropur-pureum(dc.) urb cv.Siratro No.06-2 had wide adaptability, cold resistance, light frost resistance, efficient biological nitrogen fixation, high yield and strong competitivity.The average annual yield of fresh grass was 42822.0kg/hm².which was 20.3% to 33.3% higher than that of reference varieties. In addition, M.atropur-pureum(dc.) urb cv.Siratro No.06-2 grew fast and had high protein content (19.1%).These results suggest that M.atropur-pureum(dc.) urb cv.Siratro No.06-2 has high nutritive value and it is an eminent leguminous grass in subtropical areas.