Physiological and Biochemical Characteristics of Cunninghamia lanceolata under Didderent Storage Temperatures
Annotatsiya
[Objective] Study the effects of storage temperatures on Cunninghamia lanceolata seeds vigor during storage. [Method] In this paper,cell membrane permeability,Malondiadehyde contents,soluble sugar contents,Superoxide dismutase activity and Catalase activity of Cunninghamia lanceolata seeds under different storage temperatures were determined by using physiological and biochemical detection methods. [Result] There were significant differences of cell membrane permeability among different storage temperatures. At the storage temperature of 4 ℃,the cell membrane permeability was the lowest,followed by- 80 ℃. The content of Malondiadehyde at the storage temperature of 40 ℃ was significant higher than other temperatures,but it showed no significant differences among the other four temperatures. Obvious differences of Superoxide dismutase activity and Catalase activity were observed on different temperatures,and the highest activity of this two enzymes were found at the storage temperature of 4 ℃ respectively. There was no significant differences of the contents of soluble sugar on different storage temperatures. Very significant negatively correlation was found between cell membrane permeability and Superoxide dismutase activity,and significant negatively correlation was found between Malondiadehyde contents and Superoxide dismutase activity. [Conclusion]4℃ is the optimal storage temperature for C. lanceolata seeds.