Study on hybrid selective breeding of high quality variety — Medicago sativa L . cv . Xinduo
Medicago sativ a L.cv.Xinduo is a high quality of hybrid Medicago strain,which is hybrid from M.sativ a L.cv.Sandeli (introduced from Canada) and M.sativ a L.cv.Beijiang ( local species).Crossbreeding is one of the best efficiency ways to increase new forage variety resources by means of gene recombination.To produce new alfalfa varieties with the characteristics of high quality, high yield and strong resistance, we use the traditional crossbreeding way to select good performance plants, harvest the seed separately, and then sow in plots, to transfer cold resistance and other good characteristics from M.sativ a L.cv.Beijiang to M.sativ a L.cv.Sandeli.With continuous 5 years primary election, re‐ selection, qualitative selection, growth and development characteristic observation and yield test for the crossbreed variety of Medicago sativ a L.cv.Xinduo, we found its botanic characteristics are large and plump foliage, erect and no‐lodge soft stalk with white and purple color, and the ratio of foliage to stalk is 1 :1.The biologic characters are : strong drought and cold resistance and tolerance,early turn to green in the beginning of spring,growth gloom in summer,anti‐disease and insect pests, fast re‐vegetation.With proper irrigation can supply second harvest.Can be harvested three times a year and produce 12000‐ 15000 kg/ha of hay.It is one of high quality of crossbreed alfalfa varieties ( strain) which is worth while to sow in irrigated agricultural area of Xinjiang.
Medicago sativ a L. cross breeding
Yang Zhi Zhong Aikebar Li jie Din Ming
Grassland Institutr,Xinj ian Academy of Animal Sciences,Urumqi,830000 Science and Technology Management and International Cooperation Section,Xinjiang Academy of Sciences
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）