威宁草芦选育研究

STUDY ON BREEDING OF WEINING REED CANARY GRASS

威宁草芦是以贵州省威宁地方野（逸）生草芦为原始材料,通过栽培驯化定向育成的多年生牧草新品种.该牧草四季青绿、耐热、抗旱、耐瘠薄,耐伏旱高温,鲜草产量7386.48 kg/667m^2,比法恩苇状羊茅增产32.5%,较原始群体增产133.12%;分蘖期-抽穗期,粗蛋白含量13.42-16.96%,,粗脂肪含量均在4.56%以上,粗纤维含量21.05-34.66%,营养丰富,适口性好.适合我国长江中下游低山、丘陵等地区种植,是建立人工草地、改良天然草场和生态建设的优良牧草.

Weining reed canary grass, a new variety of perennial forage with high grass output, green over the four seasons, heat - resistant, drought - resistant , barren - resistant and hot - summer - resistant, was bred from Guizhou wild germ plasma resources of Paladins arundinaceous Lima. After cultivation acclimatization, the fresh grass output per year is 11. 074 kg/m^2, which is 32.5% higher than that that of Festuce artmdinaceous cv. Fawn, and is 133.12% higher than that of the original colony. In tillering to earring stage, the crude protein is 13.42 - 16.965% , the crude fat is over 4.56%, and the crude fiber is 21.02 - 34.66%. The nutrition is rich with good palatability. It is suited to plant in the lower mountains and hills in the middle and lower reaches of China＇s Changjiang River. It is a fine forage grass for establishing artificial grassland and improving natural grassland and ecological building.