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- W2360436223 abstract "【Objective】Effects of low temperature treatment on physiological indexes of hybrid hazel branches,and the relationship of hybrid hazel cold resistance and membrane permeability,content of osmotic adjustment material,membrane lipid peroxidation,peroxidase and germination rate,were investigated to improve breeding and cultivation planting of hybrid hazel varieties with cold resistance.【Method】1-yearold twigs of hybrid hazelnut varieties,Xinzhen 1(84-254),Xinzhen 2(82-11),Xinzhen 3(84-310),and Pingdinghuang(80-43)were pretreated for 24hours with low temperatures of-15,-20,-25,-30,-35,and-40℃,respectively.Treatment with temperature of-15℃ was taken as the control.Changes of electrolyte leakage,contents of proline(Pro)and malondialdehyde(MDA),peroxidase(POD)activity and germination rate of branches were analyzed.【Result】Electrolyte leakage rate and MDA content of each hazelnutvariety increased as the decrease of temperature.The electrolyte leakage rate and MDA content of Xinzhen2and Pingdinghuang were higher than those of Xinzhen 3,and those of Xinzhen 1were the minimum.Pro contents of all four varieties increased along with the decrease of temperature,Xinzhen 1had the maximum value,followed by Xinzhen 3,and contents of Xinzhen 2and Pingdinghuang were similar.POD activity and germination rate decreased as the decrease of temperature,and those of Xinzhen 1were the maximum.The physiological indexes and germination rate significantly correlated with the treatment temperature.Electrolyte leakage was significantly related to MDA content,Pro content,POD activity and germination rate.At different temperatures,MDA content of each variety was significant different,while other indexes were extremely significant different.【Conclusion】Based on comprehensive analysis of different physiological and biochemical indexes,the cold resistances of the varieties were in a decreasing order of:Xinzhen 1Xinzhen 3Xinzhen 2Pingdinghuang.Electrolyte leakage,MDA,Pro,POD and germination rate could be used to evaluate cold-resistance of hazel varieties." @default.
- W2360436223 created "2016-06-24" @default.
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- W2360436223 date "2014-01-01" @default.
- W2360436223 modified "2023-09-24" @default.
- W2360436223 title "Study on character of cold-resistance physiological of Corylus heterophylla×Corylus avellana" @default.
- W2360436223 hasPublicationYear "2014" @default.
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