Keywords: 
• sugarcane /
• altitude /
• sugarcane sucrose /
• accumulation

Abstract: The sucrose accumulation characteristics of sugarcane planted at different altitudes in different months were analyzed. Sugarcane cultivar Mintang 69 /421 was planted in the field at the altitudes of 400 m,600 m,800 m,1 000 m,1 200 m,1 400 m and 1 600 m,respectively,and the Brix or sugarcane sucrose content was measured in different months. The altitude was found to give different influences to the sucrose content of the sugarcane at different accumulation stages. The sucrose content of the sugarcane was affected greatly at the altitude between 400 m and 1 000 m at the early accumulation stage,and it decreased as the altitude increases. But the sugarcane sucrose content did not change much at the altitude between 1 000 m and 1 600 m. The altitude had slight influence on the sucrose accumulation at the middle and late accumulation stages. As the altitude increased the sugarcane sucrose accumulation generally tended to decrease but not considerably,and the sucrose content changed much at different altitudes. Numerous other environmental factors beside altitude gave influence to sugarcane sucrose accumulation.