论文部分内容阅读
从龙牧803(Medicago sativa L.cv.Longmu 803)苜蓿群体中选择优秀单株,通过无性扦插繁殖,3次混合选择、开放授粉及品种比较试验、区域与生产试验,历经12年育成龙牧807苜蓿(Medicago sativa L.cv.Longmu807)新品种。该品种株型直立,在黑龙江省地区4月中下旬返青,生育期120 d左右,开花期株高75.7~105.3cm,成熟期株高98.5~133.8 cm。2年生干草产量为11739.14 kg.hm-2,比对照龙牧803苜蓿(9797.99 kg.hm-2)增产17.10%;种子产量284.60 kg.hm-2,比对照(230.00 kg.hm-2)增产18.25%。初花期粗蛋白含量19.38%,适口性好,饲用品质优良。其抗性强,生态适应性广,适宜在黑龙江省各地及毗邻省区推广种植。
Excellent individuals were selected from alfalfa populations of Medicago sativa L.cv.Longmu 803 and propagated through vegetative propagation, three times of mixed selection, open pollination and variety comparison test, regional and production test. 807 New Medicago sativa L.cv.Longmu807. The plant type upright, in mid-to-late April in Heilongjiang Province, green, growth period of about 120 d, flowering height 75.7 ~ 105.3cm, mature plant height 98.5 ~ 133.8 cm. The yield of 2-year-old hay was 11739.14 kg.hm-2, which was 17.10% higher than that of Longmu 803 alfalfa (9797.99 kg.hm-2). The seed yield was 284.60 kg.hm-2, 18.25%. The early flowering crude protein content of 19.38%, palatability, feeding quality. Its resistance, ecological adaptability, suitable for all parts of Heilongjiang Province and adjacent provinces to promote planting.