TY - JOUR
T1 - Water use efficiency and fruit quality of table grape under alternate partial root-zone drip irrigation
AU - Du, Taisheng
AU - Kang, Shaozhong
AU - Zhang, Jianhua
AU - Li, Fusheng
AU - Yan, Boyuan
N1 - Funding Information:
Thanks to the research grants from Chinese National Natural Science Fund (50709038, 50679081), Chinese National 863 High Technology Research Plan Project (2006AA100203, 2006AA100210), Hong Kong Research Grants Council (HKBU 2465/05M) and Hong Kong University Grants Committee (AoE/B-07/99). We also wish to thank all the staff of Wuwei Institute of Water Conservancy for their assistance in fieldwork.
PY - 2008/6
Y1 - 2008/6
N2 - Two-year field experiments were conducted to investigate the effect of alternate partial root-zone drip irrigation on fruit yield, fruit quality and water use efficiency of table grape (Vitis vinifera L. cv Rizamat) in the arid region of northwest China. Three irrigation treatments were included, i.e. CDI (conventional drip irrigation, both sides of the root-zone irrigated), ADI (alternate drip irrigation, both sides of the root-zone irrigated alternatively with half the water) and FDI (fixed drip irrigation, only one side of the root system irrigated with half the water). Results indicated that compared to CDI, ADI kept the same photosynthetic rate (Pn) but reduced transpiration rate, thus increased leaf water use efficiency (WUE) of table grape. And diurnal variation of leaf water potential showed no significant differences during 7.00 a.m. to 14.00 p.m. in both years. ADI also produced similar yield and improved WUEET by 26.7-46.4% and increased the percentage of edible grape by 3.88-5.78%, vitamin C content in the fruit by 15.3-42.2% and ratio of total soluble solid concentration/titrated acid in both years as compared to CDI. Thus ADI saved irrigation water, improved the water use efficiency and fruit quality of table grape without detrimental effect on the fruit yield in arid region.
AB - Two-year field experiments were conducted to investigate the effect of alternate partial root-zone drip irrigation on fruit yield, fruit quality and water use efficiency of table grape (Vitis vinifera L. cv Rizamat) in the arid region of northwest China. Three irrigation treatments were included, i.e. CDI (conventional drip irrigation, both sides of the root-zone irrigated), ADI (alternate drip irrigation, both sides of the root-zone irrigated alternatively with half the water) and FDI (fixed drip irrigation, only one side of the root system irrigated with half the water). Results indicated that compared to CDI, ADI kept the same photosynthetic rate (Pn) but reduced transpiration rate, thus increased leaf water use efficiency (WUE) of table grape. And diurnal variation of leaf water potential showed no significant differences during 7.00 a.m. to 14.00 p.m. in both years. ADI also produced similar yield and improved WUEET by 26.7-46.4% and increased the percentage of edible grape by 3.88-5.78%, vitamin C content in the fruit by 15.3-42.2% and ratio of total soluble solid concentration/titrated acid in both years as compared to CDI. Thus ADI saved irrigation water, improved the water use efficiency and fruit quality of table grape without detrimental effect on the fruit yield in arid region.
KW - Alternate partial root-zone irrigation
KW - Fruit quality
KW - Fruit yield
KW - Table grape (Vitis vinifera L.)
KW - Water use efficiency
UR - http://www.scopus.com/inward/record.url?scp=43849097253&partnerID=8YFLogxK
U2 - 10.1016/j.agwat.2008.01.017
DO - 10.1016/j.agwat.2008.01.017
M3 - Journal article
AN - SCOPUS:43849097253
SN - 0378-3774
VL - 95
SP - 659
EP - 668
JO - Agricultural Water Management
JF - Agricultural Water Management
IS - 6
ER -