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Effect of Drip Irrigation Volume on the Wine Grapes Photosynthetic Characteristics and Growth in Sandy Soil(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年03
Page:
1-5
Research Field:
Publishing date:

Info

Title:
Effect of Drip Irrigation Volume on the Wine Grapes Photosynthetic Characteristics and Growth in Sandy Soil
Author(s):
ZHANG Yin-xia; WANG Rui
(Agricultural College，Ningxia University，Yinchuan，Ningxia 750021)
Keywords:
drip irrigation; photosynthetic characteristics; wine grapes; sandy soil
PACS:
-
DOI:
10.11937/bfyy.201503001
Abstract:
In arid sandy soil，irrigation is one of the most important factors that affect the wine grapes growth and production.For the purpose of mastering the impact of drip irrigation on the wine grapes growth and production，taking 6-year-old‘Cabernet Gernischt’of wine grape variety as material，T1，T2，T3 and T4 four kinds of drip irrigation volume(3 000，4 500，6 000，7 500 m3/hm2) and CK (traditional furrow irrigation 13 500 m3/hm2) were respectively designed in a vineyard.For the purpose of mastering the relationship between drip irrigation volume and wine grape growth，wine grape shoots，SPAD values，yield and photosynthetic characteristics were measured.The results showed that,the grape shoots under stress drip irrigation and small water drip irrigation were the shortest，and then followed by the traditional furrow irrigation and flood drip irrigation，the most vigorous shoots was the appropriate water drip irrigation treatment.T3 treatment SPAD value was the highest，and followed by T2，T4，and CK，but they had no significant difference，T1 treatment was the smallest，the fresh weight of 100 leaves had the same similar regularity with SPAD value.Wine grapes photosynthetic characteristics diurnal variations were similar.The net photosynthetic rate (Pn) diurnal variation showed a level of bimodal curve，the peak value appeared at 12:00，and had a dormancy at 14:00，and then had a small peak value，and the (Pn) order was T3>T4>T2>CK>T1.Transpiration rate (E) diurnal variation showed a parabolic distribution and vertex situated at 14:00.The (E) order was consistent with the (Pn) diurnal changes.Changes in stomatal conductance (Gs) showed a downward trend，and the intercellular CO2 concentration (Ci) variation was precisely opposite to the transpiration rate (E) that showed an inverted parabolic profile，the lowest point was in 14:00，the (Ci) order was T3>T4>T2>CK>T1.Grape production had a positive correlation with grape growth，and grape sugar content decreased with drip irrigation increased，the traditional furrow irrigation (CK) sugar content was the minimum.The quality of photosynthetic characteristics and growth indicators could significantly reflect through the irrigation volume.Under optimal wine grape plant physiological indexes，the corresponding production was also the maximum.While CK had the largest irrigation volume，it had lower unit water use efficiency and lower yield，T1 treatment had the worst grape growing，the analogous production was the lowest.The 6 000 m3/hm2 drip volume on the sandy soil not only could keep the wine grape healthy growth，but also had a good quality and high yield.

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Last Update: 2015-02-27