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Short-day treatment during the growing period limits shoot growth and increases frost hardiness of h
[期刊论文] 作者：Jaana Luoranen,Heikki Smolander,,
来源：Forestry Studies in China 年份：2007
In Finland, under nursery conditions hybrid aspen may continue their shoot growth until early September. Thus, frost hardening is usually delayed. To solve this...
Short-day treatment during the growing period limits shoot growth and increases frost hardiness of h
[期刊论文] 作者：Zhang Gang,Jaana Luoranen,Heikki Smolander,
来源：中国林学（英文版） 年份：2004
In Finland, under nursery conditions hybrid aspen may continue their shoot growth until early September. Thus,frost hardening is usually delayed. To solve this...
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