干旱区生态环境知识资源中心(Arid): Direct root-zone irrigation outperforms surface drip irrigation for grape yield and crop water use efficiency while restricting root growth

Arid

DOI	10.1016/j.agwat.2019.105993
	Direct root-zone irrigation outperforms surface drip irrigation for grape yield and crop water use efficiency while restricting root growth
	Ma, Xiaochi; Sanguinet, Karen A.; Jacoby, Pete W.
通讯作者	Jacoby, Pete W.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2020
卷号	231
英文摘要	Direct root-zone irrigation is a novel subsurface drip irrigation strategy for water conservation. However, a comparison with traditional irrigation methods is lacking to better define the potential advantages of direct rootzone irrigation. A two-year study was conducted to evaluate the performance of Vitis vinifera L. cv. Cabernet Sauvignon under direct root-zone irrigation and surface drip irrigation in a commercial vineyard with loamy sand soil in a semi-arid region of southcentral Washington State, USA. Plant water status, root traits, grape yield, berry morphology and composition, and crop water use efficiency were compared between irrigation methods under three irrigation rates. Compared to surface drip irrigation, direct root-zone irrigation improved grape yield by 9-12% and crop water use efficiency by 9-11% under varied climate conditions with minor effects on berry composition, which could be potentially adjusted by irrigation rate. Moreover, grapevines irrigated through direct root-zone irrigation had 48-67% and 50-54% decrease in root number, respectively, at high and moderate irrigation rates in the upper soil profile (0-60 cm) with a decrease in water stress as revealed by higher midday stem water potential. Irrigation rate was the major factor influencing berry morphology. In fact, reduced irrigation resulted in a decrease in weight, size and number of berries. We conclude that direct root-zone irrigation could be a successful tool for improving yield and crop water use efficiency, potentially encouraging deep rooting to alleviate the water stress in grapevine under seasonal drought, and offering the ability to modify berry morphology and composition by adjusting the amount of water use.
英文关键词	Micro-irrigation Deficit irrigation Grape physiology Fruit quality Perennial crops Minirhizotron
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000525285400011
WOS关键词	DEFICIT IRRIGATION ; CLIMATE-CHANGE ; DISTRIBUTION PATTERNS ; SUBSURFACE ; TREES ; L. ; INCREASES ; QUALITY ; SYSTEM ; CORN
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/2XILL650/313953
作者单位	Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA
推荐引用方式 GB/T 7714	Ma, Xiaochi,Sanguinet, Karen A.,Jacoby, Pete W.. Direct root-zone irrigation outperforms surface drip irrigation for grape yield and crop water use efficiency while restricting root growth[J],2020,231.
APA	Ma, Xiaochi,Sanguinet, Karen A.,&Jacoby, Pete W..(2020).Direct root-zone irrigation outperforms surface drip irrigation for grape yield and crop water use efficiency while restricting root growth.AGRICULTURAL WATER MANAGEMENT,231.
MLA	Ma, Xiaochi,et al."Direct root-zone irrigation outperforms surface drip irrigation for grape yield and crop water use efficiency while restricting root growth".AGRICULTURAL WATER MANAGEMENT 231(2020).