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《ACTA ECOLOGICA SINICA》 1996-04
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THE CHANGE IN CARBOHYDRATE CONTENT AND PROTECTING ENZYME ACTIVITIES IN ROOT OF ALPINE FORAGE RELATED TO ITS ADAPTATION TO COLD IN SPRING

Zhou Ruilian(Biology Department of Lanzhou University, Lanzhou, China, 730000) Zhang Pujin(Grassland Department of GS Agriculture University, LanZhou, China, 730070)  
The experiments were conducted to study changes in content of Carbohydrate and activities of protecting enzyme in root of Clinelymus nutans planted in differently treated soils during the germination in spring; The results showed:(1) The more the forage's root kept Carbohydrate the higher the activities of protecting enzyme were in winter,the earlier it ger-minated and the more hardy it was in spring.(2) The contents of soluble sugar an activities of SOD, POD in root of Alpine forages were reduced with increasing of temperature and raised with decreasing of temperature. The forage planted in fired soil was more resistant to coldness because high level of SOD and POD activities in root were keeped and quickly increased by temperature drop. So change in Carbohydrate metabolism and adjustment of enzyme system were an important physiological re- sponses of forage to ecological environment.
【Fund】: 国家自然科学基金
【CateGory Index】: S812.6
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