干旱区生态环境知识资源中心(Arid): Signal Intensity of Stem Diameter Variation for the Diagnosis of Drip Irrigation Water Deficit in Grapevine

Arid

DOI	10.3390/horticulturae7060154
	Signal Intensity of Stem Diameter Variation for the Diagnosis of Drip Irrigation Water Deficit in Grapevine
	Ru, Chen; Hu, Xiaotao; Wang, Wene; Ran, Hui; Song, Tianyuan; Guo, Yinyin
通讯作者	Hu, XT (corresponding author), Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	HORTICULTURAE
EISSN	2311-7524
出版年	2021
卷号	7 期号:6
英文摘要	Precise irrigation management of grapevines in greenhouses requires a reliable method to easily quantify and monitor the grapevine water status to enable effective manipulation of the water stress of the plants. This study describes a study on stem diameter variations of grapevine planted in a greenhouse in the semi-arid area of Northwest China. In order to determine the applicability of signal intensity of stem diameter variation to evaluate the water status of grapevine and soil. The results showed that the relative variation curve of the grapevine stem diameter from the vegetative stage to the fruit expansion stage showed an overall increasing trend. The correlations of MDS (maximum daily shrinkage) and DI (daily increase) with meteorological factors were significant (p < 0.05), and the correlations with SWP, RWC and soil moisture were weak. Although MDS and DI can diagnose grapevine water status in time, SIMDS and SIDI have the advantages of sensitivity and signal intensity compared with other indicators. Compared with MDS and DI, the R-2 values of the regression equations of SIMDS and SIDI with SWP and RWC were high, and the correlation reached a very significant level (p < 0.01). Thus, SIMDS and SIDI are more suitable for the diagnosis of grapevine water status. The SIMDS peaked at the fruit expansion stage, reaching 0.957-1.384. The signal-to-noise ratio of SIDI was higher than that of MDS across the three treatments at the vegetative stage. The value and signal-to-noise ratio of SIDI at the flowering stage were similar to those of SIMDS, while the correlation between SIDI and the soil moisture content was higher than that of SIMDS. It can be concluded that that SIDI is suitable as an indicator of water status of grapevine and soil during the vegetative and flowering stages. In addition, the signal-to-noise ratio of SIMDS during the fruit expansion and mature stages was significantly higher than that of SIDI. Therefore, SIMDS is suitable as an indicator of the moisture status of grapevine and soil during the fruit expansion and mature stages. In general, SIMDS and SIDI were very good predictors of the plant water status during the growth stage and their continuous recording offers the promising possibility of their use in automatic irrigation scheduling in grapevine.
英文关键词	grapevine maximum daily shrinkage daily increase stem water potential leaf relative water content signal intensity
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000666412900001
WOS关键词	MAXIMUM DAILY SHRINKAGE ; DAILY TRUNK SHRINKAGE ; PLANT WATER ; REFERENCE EQUATIONS ; CLIMATIC VARIABLES ; OLIVE TREES ; APPLE-TREES ; SAP FLOW ; INDICATORS ; STRESS
WOS类目	Horticulture
WOS研究方向	Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350479
作者单位	[Ru, Chen; Hu, Xiaotao; Wang, Wene; Ran, Hui; Song, Tianyuan; Guo, Yinyin] Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ru, Chen,Hu, Xiaotao,Wang, Wene,et al. Signal Intensity of Stem Diameter Variation for the Diagnosis of Drip Irrigation Water Deficit in Grapevine[J]. 西北农林科技大学,2021,7(6).
APA	Ru, Chen,Hu, Xiaotao,Wang, Wene,Ran, Hui,Song, Tianyuan,&Guo, Yinyin.(2021).Signal Intensity of Stem Diameter Variation for the Diagnosis of Drip Irrigation Water Deficit in Grapevine.HORTICULTURAE,7(6).
MLA	Ru, Chen,et al."Signal Intensity of Stem Diameter Variation for the Diagnosis of Drip Irrigation Water Deficit in Grapevine".HORTICULTURAE 7.6(2021).