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Comparative Study on the Heat Tolerance of Different Eggplant Varieties at Seedling Stage(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年15期
Page:
15-19
Research Field:
Publishing date:

Info

Title:
Comparative Study on the Heat Tolerance of Different Eggplant Varieties at Seedling Stage
Author(s):
FAN Fei1; LI Shao-peng1; GAO Xin-sheng2; CHEN Yan-li1
1.Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources,Ministry of Education,College of Horticulture and Landscape,Hainan University,Danzhou,Hainan 571737；2.Institute of Rubber Research,Chinese Academy of Tropical Agricultural Science,Danzhou,Hainan 571737
Keywords:
seedings of eggplant; heat resistance; high temperature stress; physiological indexes
PACS:
S 641.1
DOI:
-
Abstract:
Four eggplants seedlings‘Xinxiangcaoqing eggplant’,‘Ziguan eggplant’,‘Tianzilingzichang eggplant’ ,‘Hang No1 eggplant’ from different regions were selected as materials,the effect of high temperature stress on different varieties were analyzed.The results showed that the chromatic value L,b decreased and chromatic value a and chlorophyll ascended of all varieties seedlings except the variety of ‘Xinxiangcaoqing eggplant’ after stress of high temperature,chlorophyll content of ‘Hang No1 eggplant’ raised as high as 28.66%.The root activity of ‘Ziguan Eggplant’ and ‘Tainzilingchang eggplant’ raised,while that of the other two varieties first declined then increased.Plasmamembrane permeability of all varieties was greater than that of those without high temperature stress,especially the variety ‘Xinxiangcaoqing eggplant’,its growing rate reached to 30.91%,proline content was greater than that of those without high temperature stress.MDA content was greater than that of those without high temperature stress.Protective enzyme activity of all types decreased,but protective enzyme activity of the variety ‘Hang No1 eggplant ’ was relatively stable and its soluble protein content dropped the least (19.63%).Thus it could be concluded that heat tolerance of the variety ‘Hang No1 eggplant ’ was preferable to other varieties of eggplants in seedling stage.

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Last Update: 2014-08-11