The legacy effects of rubber defoliation period on the refoliation phenology, leaf disease, and latex yield

doi:10.1016/j.pld.2022.01.003

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	The legacy effects of rubber defoliation period on the refoliation phenology, leaf disease, and latex yield
	Zhai,De-Li; Xu,Jian-Chu
	2023
发表期刊	PLANT DIVERSITY
ISSN	2468-2659
卷号	45 期号:1 页码:98-103
摘要	The leaf phenology of trees has received particular attention for its crucial role in the global water and carbon balances, ecosystem, and species distribution. However, current studies on leaf phenology have mainly focused on temperate trees, while few studies including tropical trees. Little attention has been paid to globally extensive industrial plantations. Rubber plantations are important to both the local and global economies. In this study, we investigated the legacy effects of defoliation phenology on the following year's leaf flushing, leaf disease, and also latex yield of rubber trees, an economically important tree to local people and the world. Results show that extended duration of defoliation increased the subsequent duration of refoliation and rates of infection by powdery mildew disease, but led to reduced latex yield in March. This legacy effect of rubber defoliation may relate to the carbohydrate reserved in the trees. A longer duration of defoliation would consume more reserved carbohydrates, reducing available reserves for disease defense and latex production. Extended duration of defoliation period was associated with either a lower temperature before the cessation of latex tapping in October-November and/or a higher temperature after the cessation of latex tapping in December-January. Leaf falling signals the end of photosynthetic activities in deciduous trees. Thus, the leaf falling phenology will impact ecological processes involving rubber trees. Our findings indicated that the inclusion of defoli-ation periods in future rubber trees' research, will be crucial to furthering our understanding of leaf flushing, powdery mildew disease, and latex yield.Copyright (c) 2023 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Carbohydrate Defoliation Legacy effect Phenology Rubber trees TROPICAL FORESTS CLIMATE-CHANGE XISHUANGBANNA TREES BIODIVERSITY EXPANSION IMPACTS DEMAND YUNNAN
学科领域	Plant Sciences
DOI	10.1016/j.pld.2022.01.003
WOS记录号	WOS:000935453700001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/74850
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Zhai,De-Li,Xu,Jian-Chu. The legacy effects of rubber defoliation period on the refoliation phenology, leaf disease, and latex yield[J]. PLANT DIVERSITY,2023,45(1):98-103.
APA	Zhai,De-Li,&Xu,Jian-Chu.(2023).The legacy effects of rubber defoliation period on the refoliation phenology, leaf disease, and latex yield.PLANT DIVERSITY,45(1),98-103.
MLA	Zhai,De-Li,et al."The legacy effects of rubber defoliation period on the refoliation phenology, leaf disease, and latex yield".PLANT DIVERSITY 45.1(2023):98-103.

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