干旱区生态环境知识资源中心(Arid): Evapotranspiration, crop coefficients, and physiological responses of citrus trees in semi-arid climatic conditions

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DOI	10.1016/j.agwat.2019.105838
	Evapotranspiration, crop coefficients, and physiological responses of citrus trees in semi-arid climatic conditions
	Jamshidi, Sajad 1,2; Zand-Parsa, Shahrokh 2; Kamgar-Haghighi, Ali Akbar 2; Shahsavar, Ali Reza 3; Niyogi, Dev 1,4
通讯作者	Zand-Parsa, Shahrokh
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2020
卷号	227
英文摘要	Improved understanding of crop water use is vital for aiding water-saving and sustainable production practices, particularly for water-restricted regions, where limited observations exist. This study investigated the standard evapotranspiration and crop coefficients (single and dual) for drip-irrigated mature orange trees (Citrus sinensis L. cv. Washington navel) for the semi-arid climate of southern Iran. Forty-five Washington navel trees in a clean-cultivated orchard were subjected to five irrigation levels (100%, 90%, 75%, 60%, and 45% of reference evapotranspiration) for two consecutive seasons (2016, 2017). Crop physiological responses including stomatal conductance (g(s)) and leaf water potential (Psi(leaf)) were measured, and the agronomic effects in terms of plant yield (i.e., fruit number and weight) and evapotranspiration water productivity (WPET) were evaluated. The average standard evapotranspiration rate was measured as 5.11 mm day(-1) with the seasonal amount of 1814 mm (partitioned as 84.9-86.5% of transpiration and 13.5-15.1% evaporation), and the crop coefficient ranged from 0.67 in January to 0.96 in June. During periods of high evaporative demand, the non-stressed and moderately stressed trees (100%, 90%, 75% treatments) reduced their g(s) (0.107-0.075 mol m(-2) s(-1)) to maintain a relatively constant Psi(leaf), whereas in severely stressed trees (60% and 45% treatments), Psi(leaf) significantly reduced when g(s) dropped below 0.067-0.077 mol m(-2) s(-1). Considering the current water deficiency in the region, irrigating at 60% ETo ((similar to)67-70% standard crop demand) is recommended for sustainable citrus production.
英文关键词	Crop coefficients Evapotranspiration Leaf water potential Stomatal conductance Washington navel Orange Water productivity
类型	Article
语种	英语
国家	USA ; Iran
收录类别	SCI-E
WOS记录号	WOS:000525275500007
WOS关键词	WATER-USE EFFICIENCY ; REGULATED DEFICIT IRRIGATION ; SINENSIS L. OSBECK ; LEAF GAS-EXCHANGE ; ORANGE TREES ; WINTER-WHEAT ; STOMATAL CONDUCTANCE ; CANOPY CONDUCTANCE ; DRIP IRRIGATION ; CV RABAB
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/313930
作者单位	1.Purdue Univ, Dept Agron Crops Soils & Water Sci, W Lafayette, IN 47907 USA; 2.Shiraz Univ, Sch Agr, Dept Water Engn, Shiraz 6518671441, Iran; 3.Shiraz Univ, Sch Agr, Dept Hort Sci, Shiraz 6518671441, Iran; 4.Purdue Univ, Dept Earth Atmosphere Planetary & Sci, W Lafayette, IN 47907 USA
推荐引用方式 GB/T 7714	Jamshidi, Sajad,Zand-Parsa, Shahrokh,Kamgar-Haghighi, Ali Akbar,et al. Evapotranspiration, crop coefficients, and physiological responses of citrus trees in semi-arid climatic conditions[J],2020,227.
APA	Jamshidi, Sajad,Zand-Parsa, Shahrokh,Kamgar-Haghighi, Ali Akbar,Shahsavar, Ali Reza,&Niyogi, Dev.(2020).Evapotranspiration, crop coefficients, and physiological responses of citrus trees in semi-arid climatic conditions.AGRICULTURAL WATER MANAGEMENT,227.
MLA	Jamshidi, Sajad,et al."Evapotranspiration, crop coefficients, and physiological responses of citrus trees in semi-arid climatic conditions".AGRICULTURAL WATER MANAGEMENT 227(2020).