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Study on Cold Tolerance of Stems of Toona sinensis Seedlings from Different Provenances(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年18期
Page:
1-4
Research Field:
Publishing date:

Info

Title:
Study on Cold Tolerance of Stems of Toona sinensis Seedlings from Different Provenances
Author(s):
YANG Yu-zhen1; CHEN Gang1; PENG Fang-ren2; WANG Guo-xia1; LUO Qing1; MA Xiao3
1.Department of Life Sciences，Zhengzhou Normal University，Zhengzhou，Henan 450044;
2.College of Forest Resources and Environment，Nanjing Foresty University，Nanjing，Jiangsu 210037;
3.Department of Environment Artistic Engineering，Henan Vocational and Technical College，Zhengzhou，Henan 450046
Keywords:
Toona sinensis Roem; provenances; stem; cold resistance; matter of osmotic adjustment
PACS:
S 644.4
DOI:
-
Abstract:
Taking one-year-old Toona sinensis seedlings from 10 different peovenances as materials，moisture content，free water content，bound water content，the ratio of free water to bound water and soluble sugar content，proline content of stems of Toona sinensis were analyzed.The results showed that moisture content，free water content and the ratio of free water to bound water reduced in five degree centigrade to five degree centigrade below zero.The bound water content，soluble sugar content，proline content increased in the same conditions.The results indicated that the contents of indicators and half lethal temperature showed (significantly) negative correlation.

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Last Update: 2014-11-26