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Pak. J. Bot., 47(3): 1111-1114, 2015. |
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Updated: 23-06-15 | ||||
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Study on the ChemIcal Components of Shoots and Leaves of CamellIa oleIfera FROM DIfferent ElevatIons
WEI WU1,2Փ, JUANJUAN HU1Փ, WENJUN DUAN3, YAFEI SHEN1, ZHIHUA CAO4 AND QINGLONG SHU1*
Abstract: The correlation between chemical components of shoot and leaf of Camellia oleifera and elevations were discussed, to provide theoretical basis for taking effective cultivation measures to promote the cold resistance of C. oleifera in the future “Northward Movement of C. oleifera”. The ratio of bound water to free water of the leaf, as well as the contents of holocellulose, cellulose, lignin and benzene-ethanol extracts were determined. The results showed that: In different elevations, the ratio of bound water to free water of the leaf varied from 0.11-0.22, the contents of holocellulose, cellulose, lignin and benzene-ethanol extracts varied from 25.08%-62.72%, 7.72%-36.61%, 11.80%-30.29% and 7.66%-8.57% respectively. In the same elevation, the content of benzene-ethanol extracts of leaf was higher than that of shoot, and the contents of other materials were quite the contrary. The elevation was positively correlated with the ratio of bound water to free water and the contents of holocellulose, cellulose, lignin and benzene-ethanol extracs. The chemical components of shoot and leaf represented extremely significant difference (p<0.01) among different elevations. In the future northward movement of C. oleifera, for the climate characteristics of cooler regions and higher elevation, a serious of cultivation measures, improving the contents of holocellulose, cellulose, lignin, benzene-ethanol extracts and the ratio of water to free water, were taken to improve the cold resistance of C. oleifera.
Key words: Camellia oleifera; Elevation; Chemical composition; Cold resistance.
1School of Forest and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China 2Agricultural Engineering Research Institute, Anhui Academy of Agricultural Science, Hefei 230036, China 3Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China 4Anhui Academy of Forestry, Hefei 230036, China *Corresponding author’s email: wuwei960@yahoo.com; Phone: 0086-551-65786561; Fax: 0086-551-65786512 ՓAuthors contribute equally |
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