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题名: Greater diurnal temperature difference, an overlooked but important climatic driver of rubber yield
作者: Yu, Haiying1, 2; Hammond, Jim1, 2; Ling, Shenghai3; Zhou, Shuangxi3; Mortimer, Peter Edward1, 2; Xu, Jianchu1, 2
刊名: INDUSTRIAL CROPS AND PRODUCTS
出版日期: 2014-12-01
卷号: 62, 期号:4, 页码:14-21
关键词: Dry rubber yield ; Dry rubber content ; Average temperature ; Diurnal temperature difference ; Sunshine hours ; Relative humidity
学科分类: Agricultural Engineering;Agronomy
DOI: 10.1016/j.indcrop.2014.08.001
通讯作者: Yu,HY (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Biodivers & Biogeog,Kunming 650201,Peoples R China. ; yuhaiying@mail.kib.ac.cn ; jxu@mail.kib.ac.cn
文章类型: Article
英文摘要: The increase of rubber demand has led to rapid expansion of rubber plantations from optimal environments in the humid tropics of Southeast Asia into suboptimal environments in montane mainland Southeast Asia. Nevertheless, rubber yields can be surprisingly high in sub-optimal environments. This paper investigates climatic factors which contribute to the higher than expected rubber yields in a suboptimal environment in Jinghong, Yunnan, Southwest China. Two mathematical analysis methods were used to relate climate to rubber yield and dry matter content: partial least square regression and classification and regression tree models were used. Greater diurnal temperature difference was found to increase dry rubber yield, and has been previously overlooked as an explanatory factor. Average temperatures below 25.7 degrees C, and more sunshine hours in the day before tapping, were also found to significantly improve dry rubber yield, although more sunshine hours during the month prior to tapping were found to reduce rubber yield. Lower relative humidity was found to increase dry rubber content of latex and increase yield. Greater diurnal temperature difference and more sunshine hours in a day before tapping facilitate photosynthesis and rubber formation. Lower relative humidity reduces the water content in the latex, thus increasing dry rubber content of the latex.
类目[WOS]: Agricultural Engineering ; Agronomy
研究领域[WOS]: Agriculture
关键词[WOS]: TREE HEVEA-BRASILIENSIS ; PARAMETERS ; GUAYULE ; CHINA
收录类别: SCI
项目资助者: Irish Research Council for Science, Engineering, and Technology (IRCSET) ; Science Foundation Ireland through the Molecular Therapeutics for Cancer Ireland Strategic Research Cluster [08/SRC/B1410] ; 7th European Community Framework Programme (Marie Curie International Reintegration Grant) [224865, FP7-REGPOT-2012-CT2012-316254-BASTION] ; Polish National Science Center [2012/07/B/NZ7/04183] ; Ministry of Science and Higher Education [IP2012 048172] ; Irish Cancer Society Collaborative Cancer Research Centre BREAST-PREDICT Grant [CCRC13GAL] ; UICC [ICR/11/002/2011: PCOL, ICR/12/017/2012: RZ] ; Programme for Third Level Institutions (PRTLI)
语种: 英语
WOS记录号: WOS:000345468800003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18491
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China
2.World Agroforestry Ctr, East Cent Asia 650201, Kunming, Peoples R China
3.Xishuangbanna Meteorol Bur, Jinghong, Peoples R China

Recommended Citation:
Yu,Haiying;Hammond,Jim;Ling,Shenghai;Zhou,Shuangxi;Mortimer,Peter Edward;Xu,Jianchu.Greater diurnal temperature difference, an overlooked but important climatic driver of rubber yield,INDUSTRIAL CROPS AND PRODUCTS,2014,16(4):R79
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