文献类型： 外文期刊

作者： Wu, Wei ¹ ; Hu, Juanjuan ¹ ; Duan, Wenjun ³ ; Shen, Yafei ¹ ; Cao, Zhihua ⁴ ; Shu, Qinglong ¹ ;

作者机构： 1.Anhui Agr Univ, Sch Forest & Landscape Architecture, Hefei 230036, Peoples R China

2.Anhui Acad Agr Sci, Agr Engn Res Inst, Hefei 230036, Peoples R China

3.Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China

4.Anhui Acad Forestry, Hefei 230036, Peoples R China

关键词： Camellia oleifera;Elevation;Chemical composition;Cold resistance

期刊名称：PAKISTAN JOURNAL OF BOTANY （ 影响因子：0.972； 五年影响因子：0.988 ）

ISSN： 0556-3321

年卷期： 2015 年 47 卷 3 期

页码：

收录情况： SCI

摘要： 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.