Effect of Air-drying on Vigor of Melia toosendan Seedlings in Dry-hot Valley of Jinshajiang River
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1.
Research Institute of Resouce Insects, CAF, Kunming 650224, Yunnan, China
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2.
Forestry Department of Heqing County, Dali 671500, Yunnan, China
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Received Date:
2005-07-15
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Abstract
Studies of 5 kinds of air-drying treatments were conducted on Melia toosendan Sieb. et Zucc. The water content, relative electric conductivity, root vigor and survival rate after planting were tested. The relationship between seedling water and seedling vigor was discussed. The result showed that the seedling vigor of Melia toosendan was related closely with its water content. The seedling dehydration caused the increase of the relative electric conductivity of root system and the decrease of the relative water content and the root vigor. Eventually, the survival rate decreased. So seedling vigor conservation of Melia toosendan is one of the key factors that affect field performance.
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