Growth and transpiration of maize and winter wheat in response to water deficits in pots and plots

ISWC OpenIR > 水保所知识产出(1956---)

	Growth and transpiration of maize and winter wheat in response to water deficits in pots and plots
	Wu Yuanzhi; Huang Mingbin; Warrington David N刘梅; Huang, MB
	2011
发表期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
卷号	71 期号:1 页码:65-71
摘要	Pots used for experiments conducted on plants grown in them create rooting environments that are affected by limited soil volume, which can affect various physiological processes, including transpiration, and plant growth. However, the applicability of results from pot experiments to the field has received limited attention. The objective of this study was to compare the growth and transpiration of maize (Zea mays L) and winter wheat (Triticum aestivum L.) when grown in pots and field plots under various constant water deficits. The experiments were conducted under similar environmental conditions for both pots and plots. Transpirational responses at both transient (RTTr) and daily (RDTr) time scales to a decreasing fraction of available soil water (FASW) were analyzed. For a comparable FASW, there was a significant reduction in shoot dry weight and total transpiration for plants in pots compared to those in plots. A parabolic relationship between shoot dry weight and total transpiration existed and was not influenced by soil volume or crop type. The plot experiment data for both crops was consistent with pot data for the response of RDTr and RTTr to changes in FASW, which was represented by a linear-plateau function. However, the threshold values were significantly different for the two time scales. The threshold values and slopes of the linear-plateau function for maize and wheat were not significantly different in the response of RTTr to FASW, but were significantly different in the response of RDTr to FASW. Therefore, the transpirational responses of the selected maize and winter wheat hybrids to soil drought were different at the daily and transient time scales. (C) 2010 Elsevier B.V. All rights reserved.
关键词	Daily Transpiration Rate Transient Transpiration Rate Shoot Dry Weight Soil Volume Maize Winter Wheat
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/4708
专题	水保所知识产出(1956---)
通讯作者	Huang, MB
推荐引用方式 GB/T 7714	Wu Yuanzhi,Huang Mingbin,Warrington David N刘梅,et al. Growth and transpiration of maize and winter wheat in response to water deficits in pots and plots[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2011,71(1):65-71.
APA	Wu Yuanzhi,Huang Mingbin,Warrington David N刘梅,&Huang, MB.(2011).Growth and transpiration of maize and winter wheat in response to water deficits in pots and plots.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,71(1),65-71.
MLA	Wu Yuanzhi,et al."Growth and transpiration of maize and winter wheat in response to water deficits in pots and plots".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 71.1(2011):65-71.

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