摘要
通过对紫花苜蓿、鹰嘴紫云英、红豆草、百脉根越冬前后形态、生理指标比较,研究4种豆科牧草抗寒能力。结果表明,各牧草的抗寒性能与牧草的根茎直径、越冬芽数量呈显著正相关。最后通过对各牧草各项指标作出了综合性价:紫花苜蓿、百脉根抗寒性能明显高于红豆草和鹰嘴紫云英,同时提出可溶性糖含量可作为几种牧草在本区的鉴定指标。
Characters of cold resistance of four leguminous forage species have been studied based on mor phological and physiology parameter before and after over-wintering. The results showed that the cold resistance of leguminous forage was significant correlation to root diameter and winter bud numbers. Comprehensive analy- sis indicated Medicago sativa and Loteae corniculatus were more cold resistance than Astragalus sinicus and On obrychis viciifolia. Soluble sugar content can be as identification indices in valuing resistance cold of perennial legumes in changchun.
出处
《草原与草坪》
CAS
2010年第1期68-73,共6页
Grassland and Turf
关键词
豆科牧草
抗寒力
形态指标
生理指标
Legume forage
cold resistance
morphological parameter
physiology parameter
