Volume 29 Issue 4
Jul.  2012
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WANG Guo-xia, CAO Fu-liang, YANG Yu-zhen, FANG Yan-ming, LEI Xiao-lin. Heat tolerance comparisons for 25 cultivars of Camellia oleifera[J]. Journal of Zhejiang A&F University, 2012, 29(4): 540-545. doi: 10.11833/j.issn.2095-0756.2012.04.009
Citation: WANG Guo-xia, CAO Fu-liang, YANG Yu-zhen, FANG Yan-ming, LEI Xiao-lin. Heat tolerance comparisons for 25 cultivars of Camellia oleifera[J]. Journal of Zhejiang A&F University, 2012, 29(4): 540-545. doi: 10.11833/j.issn.2095-0756.2012.04.009

Heat tolerance comparisons for 25 cultivars of Camellia oleifera

doi: 10.11833/j.issn.2095-0756.2012.04.009
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  • Corresponding author: WANG Guo-xia
  • Received Date: 2011-08-17
  • Rev Recd Date: 2012-01-12
  • Publish Date: 2012-08-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Heat tolerance comparisons for 25 cultivars of Camellia oleifera

doi: 10.11833/j.issn.2095-0756.2012.04.009
    Corresponding author: WANG Guo-xia

Abstract: High temperature has been a major climatic issue affecting yield and quality of economic non-timber forest products. In order to identify the differences of heat tolerance among Camellia oleifera cultivars,the study was based on the leaves of 25 C. oleifera cultivars in the C. oleifera germplasm nursery in Jiangxi Academy of Forestry,which are respectively treated with the temperatures of 40,45,50,55,60 and 65 ℃ (control) for 30 min,and determined the semi-lethal temperatures (TL50) by conductivity method and logistic equation(y=k/(1+ae-bt)). According to the the semi-lethal temperatures,the 25 C. oleifera cultivars were classified into three types:1) TL5050 ℃ (heat-resistant type:6 cultivars),2) 45 ℃ TL50<50℃ (medium-resistant type:14 cultivars),and 3) TL50<45 ℃ (heat-sensitive type:5 cultivars). These results showed important differences in heat tolerance of C. oleifera cultivars,which was similar to TL50 results for morphological characteristics of hydroponic cuttings at different high temperature stresses. The result will provide theoretical references for the study of heat resistance and directive breeding of C. oleifera.[Ch,1 fig. 2 tab. 26 ref.]

WANG Guo-xia, CAO Fu-liang, YANG Yu-zhen, FANG Yan-ming, LEI Xiao-lin. Heat tolerance comparisons for 25 cultivars of Camellia oleifera[J]. Journal of Zhejiang A&F University, 2012, 29(4): 540-545. doi: 10.11833/j.issn.2095-0756.2012.04.009
Citation: WANG Guo-xia, CAO Fu-liang, YANG Yu-zhen, FANG Yan-ming, LEI Xiao-lin. Heat tolerance comparisons for 25 cultivars of Camellia oleifera[J]. Journal of Zhejiang A&F University, 2012, 29(4): 540-545. doi: 10.11833/j.issn.2095-0756.2012.04.009

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