silver linden

英

美

[网络] 银林登

And provenance No. 1 of silver linden has similar phenophase with Tilia amurensis from date of germination to defoliation.
银叶椴与当地树种紫椴相比，种源1从芽萌动一直到落叶末各物候期与紫椴最为接近。
Comparing with the distribution regions of silver linden, the lower temperature in winter, inadequate precipitation during the growing period and the difference in rain tape are common problems for Northern China to introduce silver linden.
与美国银叶椴分布区相比，冬季低温、生长季节降水不足、雨型不同是我国北方引种银叶椴所面临的普遍问题。
According to climatic types of distributing region, hedge maple and silver linden were divided into three climatic and ecological types.
根据栓皮槭和银叶椴分布区的气候类型，把两树种划分为三种气候生态类型。
Primary restrictive factors for introduction of hedge maple and silver linden were chilliness in winter, frost and dryness and low temperature in early spring in Beijing.
栓皮槭和银叶椴引入北京试验地区栽培的主要限制因子是冬季的严寒和早春的霜冻及低温干燥。
Resting reason of silver linden seed.
银叶椴种子的休眠原因。
Silver linden seed belongs to all-around deep dormancy.
银叶椴种子属于综合性深休眠类型。