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2013•Northern HorticultureRequires access

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

WU Li-ju

Open publisher page 2 citations

Abstract

Using seedlings of 3tomato cultivars‘Baiguoqiangfeng',‘Kaluola'and‘Dongfanghong No.1'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 3cultivars 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 3cultivars was as follows:‘Kaluola'‘Dongfanghong No.1'‘Baiguoqiangfeng'.

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What this paper is about

Using seedlings of 3tomato cultivars‘Baiguoqiangfeng',‘Kaluola'and‘Dongfanghong No.1'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 3cultivars 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 3cultivars was as follows:‘Kaluola'‘Dongfanghong No.1'‘Baiguoqiangfeng'.

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Available abstract

Using seedlings of 3tomato cultivars‘Baiguoqiangfeng',‘Kaluola'and‘Dongfanghong No.1'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 3cultivars 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 3cultivars was as follows:‘Kaluola'‘Dongfanghong No.1'‘Baiguoqiangfeng'.

Key concepts: Point of delivery, Carotenoid, Cultivar, Horticulture, Chlorophyll, Heat stress, Degree (music), Biology

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Effect of High Temperature Stress on Growth and Physiological Indexes of Tomato Seedlings — Research Paper | ScholarLens