|Table of Contents|

Induced Effect of Exogenous Regulators on the Cold Resistance of Tomato Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年01
Page:
47-53
Research Field:
Publishing date:

Info

Title:
Induced Effect of Exogenous Regulators on the Cold Resistance of Tomato Seedlings
Author(s):
MA Baopeng1; WANG Yanling1; WU Dan1; YANG Yanqiong1; XIA Lijuan2; HUANG Jin1
(1.Chengdu Newsun Crop Science Co.Ltd.,Chengdu,Sichuan 611600;2.Institute for the Control of Agrochemical of Sichuan Province,Chengdu,Sichuan 610041)
Keywords:
freezing stress; 14-hydroxy brassinosterol; SF-pollen polysaccharide plant vitamin C; QY-max; antioxidant enzyme activity
PACS:
-
DOI:
10.11937/bfyy.20211528
Abstract:
The ‘Jintao’ tomato was used as the test material,when plant growth regulator 14-hydroxy brassinosterol and SF-pollen polysaccharide plant vitamin C were sprayed three days in advance,the maximum photosynthetic efficiency (QY-max) and the antioxidant enzyme activity were studied under 0 ℃ freezing stress,in order to provide a reference for the study of tomato freezing resistance improvement.The results showed that both single item and the combination of them could effectively alleviate the damage of freezing damage to the photosynthetic capacity of the plants,and the latter had the best effect.Antioxidant activity test results showed that the spraying of the combination could significantly increase the peroxidase (POD) and catalase (CAT) enzyme activities in tomato seedlings under freezing stress.It was speculated that the usage of the combination could protect the photosynthetic ability of tomatoes by synergistically improve the antioxidant enzymes under freezing damage.

References:

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Last Update: 2022-04-01