Some shade tolerance forage species of Lolium multiflorum, Dactylis glomerata, Bromus carticus and Trifolium repens were selected to sow in pear orchard.
通过试验，筛选出了适宜在梨园行间种植的多花黑麦草、鸭茅、扁穗雀麦、白三叶等较耐荫草种。
Thinking about the origin, it can be sure that subspecies himalayensis belong to natural origin ecotype, but subspecies glomerata was likely to belong to naturalization species.
从来源角度分析，喜马拉雅鸭茅亚种为当地起源类型，鸭茅亚种为外来归化种的可能性较大。
Thinking about the origin, it can be sure that subspecies himalayensis belong to natural origin ecotype, but subspecies glomerata was likely to belong to naturalization species.
从来源角度分析，喜马拉雅鸭茅亚种为当地起源类型，鸭茅亚种为外来归化种的可能性较大。
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