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Response of Chlorophyll Fluorescence Parameters of Tomato Seedlings to Zn Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年24
Page:
41-44
Research Field:
Publishing date:

Info

Title:
Response of Chlorophyll Fluorescence Parameters of Tomato Seedlings to Zn Stress
Author(s):
SUN ZhuoLI YadiJI Jianwei
(College of Information and Electrical Engineering,Shenyang Agricultural University,Shenyang,Liaoning 110866)
Keywords:
tomatoZn stresschlorophyll fluorescencechlorophyll content
PACS:
-
DOI:
10.11937/bfyy.201624011
Abstract:
The tomato seeds were used as the test materials,by using soil culture method,different levels of Zn concentrations (10,50,100,150 μmol?L-1) were set,compared with 0 μmol?L-1,four groups of tomato seedling root growth,chlorophyll content and the change of chlorophyll fluorescence in leaf under Zn stress were analyzed.The results showed that,the tomato seedlings would be better when the Zn concentration was 10 μmol?L-1.While the high concentrations of Zn was harmful to plants,which might lead to slow growth and development of plants and the leaf chlorosis.At the same time,Zn excess would make the photosynthetic system of tomato seedlings be destroyed,which was because of the reducing of total chlorophyll content in tomato seedlings caused by Zn stress,and the content of MDA also increased.

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Last Update: 2017-02-08