|Table of Contents|

Effects of Drought Stress on Photosynthetic Characteristics and Antioxidant Capacity of Grape Rootstocks 110R, 1103P and 5BB Leaves

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年13
Page:
43-51
Research Field:
Publishing date:

Info

Title:
Effects of Drought Stress on Photosynthetic Characteristics and Antioxidant Capacity of Grape Rootstocks 110R, 1103P and 5BB Leaves
Author(s):
WANG Wanni1 JU Yanlun1 JIA Ruoyi1 MENG Fanjun1 MIN Zhuo1 FANG Yulin12
(1.College of Enology,Northwest A&F University,Yangling, Shaanxi 712100;2. Heyang Grape and Wine Experimental Demonstration Station, Northwest A&F University,Heyang,Shaanxi 715307)
Keywords:
drought stressgrape rootstockphysiological indexantioxidant enzyme activity
PACS:
-
DOI:
10.11937/bfyy.20204244
Abstract:
The drought resistance of grape rootstocks 110R,1103P,5BB were used as materials,the effects of drought stress on photosynthetic characteristics and anti-oxidation ability of grape rootstocks were studied by using conventional physical and chemical index determination methods.In order to evaluate its resistance.The results showed that the stomatal conductance,transpiration rate and photosynthetic rate of the three rootstocks decreased with the drought stress, and the intercellular CO2 concentration decreased first and then increased.The maximum photochemical efficiency of PSⅡ and the actual photoenergy conversion efficiency of PSⅡ in rootstock leaves showed a decreasing trend. The content of malondialdehyde (MDA) showed a rising trend, and the rising range of 5BB was the biggest, and the rising range of 110R was the smallest.The content of free proline showed a rising trend, and the rising range of 110R was the biggest,the rising range of 5BB was the smallest.The leaf catalase activity of three grape rootstocks showed a rising trend, and the rising range of rootstock 110R was the biggest,and the rising range of 5BB was the smallest.On the 20th day of drought stress,the relative water content in the leaves of rootstock 110R was higher than that of rootstock 5BB.In conclusion,the drought resistance of rootstocks was 110R>1103P>5BB.

References:

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Last Update: 2021-10-06