Comparison Of The Root Of Sugarcane Varieties (Lines) In The Condition Of Mechanical Ridged

This study was based on the first year ratoon of Ganzhe 07-538,Mintang 02-205,Yunzhe 08-2060,Yunrui 07-1433,Yuegan 43,Yuegan 46,Liucheng 07-500,Funong 40,Funong 07-2020,Funong 07-3206,ROC22 etc 11 varieties.The ridge was broken on March 23,2016.At the same time,singe fertilization as compound fertilizer 750kg,urea 150kg,potash 150kg per hectare.To selected the root were better varieties;summarized the root characteristics of the good variety in the condition of mechanical ridged by the experiment.The test results were as follows:1.The head count of 11 ratoon sugarcane varieties were significant differences,the head count of Yunzhe 08-2060,Yuegan 43 and Mintang 02-205 were more.2.There was a significant difference in the head damage rate of 11 ratoon sugarcane varieties in the condition of mechanical ridged,the influence of mechanical ridged on Minting 02-205,Funong 07-2020,Ganzhe07-538 and Liucheng07-500 were obvious,and the influence on the other varieties were not obvious.3.The comparison of the strain rate of 11 varieties showed that,Yunrui 07-1433,Funong 07-3206,Mintang 02-205 and Funong 40 strain rate were higher.4.The height and stalk diameter of 11 ratoon sugarcane varieties,the height of Yunzhe 08-2060 was highest;the stalk diameter of Funong 40 was thickest.5.The stem yield traits of 11 ratoon sugarcane varieties,the productive stem of Mintang 02-205,Yuegan 43,Yunzhe 08-2060 and Funong 07-3206 were the top four;the stalk weight of Yunzhe 08-2060,Ganzhe 07-538 and Funong 40 were the top three;the stem yield of Yunzhe 08-2060,Yuegan 43,Funong 40 and Funong 07-3206 were the top four,and they were higher than the control variety ROC22,the stem yield of Yunzhe 08-2060 and ROC22 were highly significantly different,the stem yield of Funong 40 and ROC22 were significantly different.6.The hectare sucrose content of 11 varieties,in the condition of mechanical ridged,November-January of next year average hectare sucrose content and the highest hectare sucrose content of Yunzhe 08-2060,Mintang 02-205,Funong 40 and Yuegan 43 were higher than the control variety ROC22,the increasing yield stability of them were better.7.In the condition of mechanical ridged,the ratoon capability of Yunzhe 08-2060,Mintang 02-205,Funong 40 and Yuegan 43 were better,the ratoon heads were more than 60,000 poles of hectare,the strain rate were more than 120%,effective stems were more than 6.8 million trip of hectare,stem yield were not less than 100t of hectare,sucrose content were higher or equal than the ROC22,hectare sucrose content(the average hectare sucrose content,the highest hectare sucrose content)were not less than 15t.