干旱区生态环境知识资源中心(Arid): Monitoring water status in apple trees using a sensitive morning crop water stress index*

Arid

DOI	10.1002/ird.2528
	Monitoring water status in apple trees using a sensitive morning crop water stress index*
	Mohamed, Abdelmoneim Z.; Osroosh, Yasin; Peters, R. Troy; Bates, Travis; Campbell, Colin S.; Ferrer-Alegre, Francesc
通讯作者	Mohamed, AZ
来源期刊	IRRIGATION AND DRAINAGE
ISSN	1531-0353
EISSN	1531-0361
英文摘要	The crop water stress index (CWSI) has shown to be a good indicator of water status in fruit trees. Conventional CWSI measured over solar noon is widely used to monitor plant water status. This study compared the theoretical CWSI averaged over morning hours, CWSImo, and over solar noon hours, CWSImd, of apple trees. This study also assessed their sensitivity to the changes in soil water status (soil water deficit [SWD, %] and soil water potential [SWP, kPa]) at different root zone depths. Four different types of commercial and experimental apple orchards with different characteristics growing under semi-arid conditions in Washington State, United States, were chosen to assess CWSI(mo)against CWSI(md)sensitivity to soil water status. In some of these locations, soil water status ranged from fully watered to severely stressed (low water deficit to high water deficit). Ground-based thermal and microclimate measurements were recorded continuously at 10-s intervals and acquired for the 15-min average on a daily basis throughout the study period. The linear relationship between SWD and CWSI(mo)at the effective root zone depth (average of 0-150 mm and 0-460 mm) resulted in a slightly higher correlation (R-2= 0.42-0.64,p< .001) compared to the traditional CWSImd(R-2= 0.32-0.60,p< 0.001). The correlation between CWSI(mo)and SWP (R-2= 0.38-0.69,p< 0.001) was found to be larger than the correlation between CWSI(mo)and SWD, while SWP was less correlated with CWSImd(R-2= 0.33-0.55,p< 0.001). Interestingly, a better relationship between soil water status and both CWSI(mo)and CWSI(md)was observed using a nadir view orientation thermal measurement. The CWSI(mo)showed higher sensitivity to SWP than SWD. (c) 2020 John Wiley & Sons, Ltd.
英文关键词	crop water stress index infrared thermometers orientation soil water deficit soil water potential thermal sensing
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000574171400001
WOS关键词	CANOPY TEMPERATURE ; INFRARED THERMOMETRY ; STOMATAL CONDUCTANCE ; VISIBLE IMAGERY ; TIME-THRESHOLD ; PEACH-TREES ; IRRIGATION ; INDICATOR ; LEAF ; AUTOMATION
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/2XILL650/328303
作者单位	[Mohamed, Abdelmoneim Z.; Peters, R. Troy] Washington State Univ, Dept Biol Syst Engn, Pullman, WA 99164 USA; [Mohamed, Abdelmoneim Z.] Agr Res Ctr, Agr Engn Res Inst AEnRI, Giza, Egypt; [Osroosh, Yasin] DurUntash Lab LLC, San Diego, CA USA; [Bates, Travis; Campbell, Colin S.; Ferrer-Alegre, Francesc] METER Grp Inc, Pullman, WA USA
推荐引用方式 GB/T 7714	Mohamed, Abdelmoneim Z.,Osroosh, Yasin,Peters, R. Troy,et al. Monitoring water status in apple trees using a sensitive morning crop water stress index*[J].
APA	Mohamed, Abdelmoneim Z.,Osroosh, Yasin,Peters, R. Troy,Bates, Travis,Campbell, Colin S.,&Ferrer-Alegre, Francesc.
MLA	Mohamed, Abdelmoneim Z.,et al."Monitoring water status in apple trees using a sensitive morning crop water stress index*".IRRIGATION AND DRAINAGE