|Table of Contents|

Effect of Urea Peroxide on the Relief of Submergence Stress in Grape Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年01
Page:
21-26
Research Field:
Publishing date:

Info

Title:
Effect of Urea Peroxide on the Relief of Submergence Stress in Grape Seedlings
Author(s):
DU Hongru1; 2; LIU Li2; LI Bo2; HAN Zhen2; XIE Zhaosen1
(1.College of Horticulture Scisence and Technology,Hebei Normal University of Technology and Science,Qinhuangdao,Hebei 066600；2.Shandong Institute of Pomology,Tai′an,Shandong 271000)
Keywords:
urea peroxide; young grepe trees; submergence; alleviation effect
PACS:
-
DOI:
10.11937/bfyy.20191811
Abstract:
Using the annual ‘summer black’ grape seedlings as experimental material，this experiment was carried out to study the effects of urea peroxide on plant growth，root activity and leaf photosynthetic characteristics under submergence stress by pot submergence.A total of 4 treatments were set in the experiment T1 bag-controlled urea peroxide treatment，T2 broadcast urea peroxide treatment，T3 broadcast ordinary urea treatment，and CK for the control without nitrogen fertilizer.Oxygen release characteristics，seeding growth，root activity，and photosynthetic data were measured under submergence stress.The results showed that the application of urea peroxide under the stress of flooding increased the content of dissolved oxygen in soil surface water，enhancing the content of chlorophyll，root activity and other physiological indicators，which could effectively alleviate the damage of plants in the adverse environment.The application of urea peroxide effectively increased the dissolved oxygen content of soil surface water，and the oxygen content of bag-controlled urea peroxide remained at a high level throughout the entire period.The root activity of grape saplings treated with urea peroxide under submergence stress was significantly better than that of the control group and the difference was significant.Under waterlogging stress，the net photosynthetic rate (Pn)，transpiration rate (Tr) and stomatal conductance (Gs) of leaves treated with urea peroxide were significantly lower than those of the control.The content of chlorophyll a (chlorophyll a) and chlorophyll b (chlorophyll a+b) of T1 and T2 treated with urea peroxide increased by 75%，69%，41%，37%，63% and 57%，respectively，compared with the control group.

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Last Update: 2020-01-13