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Effect of High Temperature Stress on Growth and  Physiological Indexes of Tomato Seedlings(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年23期
Page:
19-22
Research Field:
Publishing date:

Info

Title:
Effect of High Temperature Stress on Growth and  Physiological Indexes of Tomato Seedlings
Author(s):
WU Li-jun;ZHANG Jun-feng
Forestry College,Central South Forestry University,Changsha,Hunan 410004
Keywords:
tomatoseedlingshigh temperature stressgrowth indexesphysiological indexes
PACS:
S 641.2
DOI:
-
Abstract:
Using seedlings of 3 tomato cultivars ‘Baiguoqiangfeng’,‘Kaluola’ and ‘Dongfanghong No1’ as experimental materials,the changes of  morphological and physiological indexes under high temperature stress were compared.The results showed that,relative growth rate of plant height,root length,stem diameter and fresh weight of 3 cultivars were inhibited to a certain degree;heat injury index and POD activity were increased,and total chlorophyll and carotenoid content were decreased gradually.Results of the subordinative function analysis showed that the degree of heat tolerance of the 3 cultivars was as follows:‘Kaluola’>‘Dongfanghong No.1’>‘Baiguoqiangfeng’.

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Last Update: 2014-08-11