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学科主题: 生物科学::普通生物学
题名: Timing of rice maturity in China is affected more by transplanting date than by climate change
作者: Zhao, HF (Zhao, Hongfang)1; Fu, YSH (Fu, Yongshuo H.)1, 2; Wang, XH (Wang, Xuhui)1; Zhao, C (Zhao, Chuang)1; Zeng, ZZ (Zeng, Zhenzhong)1; Piao, SL (Piao, Shilong)1, 3, 4
通讯作者: Piao, SL
刊名: AGRICULTURAL AND FOREST METEOROLOGY
发表日期: 2016
DOI: 10.1016/j.agrformet.2015.11.001
卷: 216, 期:0, 页:215-220
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: The phenological development of rice is a critical element affecting grain yield. The phenophases of rice development from transplanting through heading to maturity have often been linked to climatic factors, such as temperature and solar radiation. In contrast, the effects of physiological processes on the timing of rice maturity have not been well investigated. In this study, we examined shifts in the timing of transplanting, heading, and maturity of single, early, and late rice in China during the period 1991-2012; we used in situ records assembled at 113 agricultural stations, and explored the correlations between changes in the timing of phenological events and (i) climatic and (ii) physiological factors. We detected a significant warming trend through whole growing seasons (from transplanting to maturity) for all three rice varieties; this trend had negative impacts on the dates of maturity. The durations of the growing seasons over the period were extended by 4.1 +/- 2.0, 1.8 +/- 2.9, and 2.2 +/- 1.9 days for single, early, and late rice, respectively. However, for single rice, the extension was related to delayed dates of transplanting and maturity, whereas for early and late rice, it was attributed to advances in the dates of transplanting and maturity. The timing of maturity in all rice types was most closely related to transplantation and heading dates; climatic factors were of secondary importance. We hypothesize that internal regulation processes operating via carbohydrate content or leaf/cell longevities likely influence rice phenological processes through hormonal mechanisms. Early-season phenological events clearly influence the timing of plant maturity; the dates of early season events are shifting. Therefore, current protocols for global and regional crop modeling that use fixed planting dates are unlikely to accurately account for the impacts of climate change on croplands. (C) 2015 Elsevier B.V. All rights reserved.
语种: 英语
WOS记录号: WOS:000367491300019
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7782
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst, Sci, Beijing 100871, Peoples R China
2.Univ Antwerp, Dept Biol, B-2610 Antwerp, Belgium
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China

Recommended Citation:
Zhao, HF ,Fu, YSH ,Wang, XH ,et al. Timing of rice maturity in China is affected more by transplanting date than by climate change[J]. AGRICULTURAL AND FOREST METEOROLOGY,2016,216(0):215-220.
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