| In order to provide good sugarcane commercial varieties for Guangxi sugar industry, a new sugarcane variety Guitang 39
with the character of good ratoon ability, large stem, high cane and sugar yield was approved by Guangxi approval committee of crop variety in March 2012. It was crossed by Yuetang 93/159 and ROC22 as male and female parents, and was bred by The Five Nurseries System Hybridization of conventional cross breeding program with two plant cane and one ratoon crop of Guangxi regional and production trial. The results of regional trial showed that the average cane yield of Guitang 39 was 97.2 t/hm2, higher than the control ROC22 and ROC16 by 5.3% and 11.2%, respectively. The average sucrose content was 14.07% from Nov. to next Feb, higher than ROC22 by 0.05% and lower than ROC16 by 0.02%. The average of sugar yield was 14.02 t/hm2, increased than ROC22 and ROC16 by 9.1% and 10.4%,respectively. Guitang 39 was suited to plant on medium or high fertility of dry land and paddy field in Guangxi sugarcane plantation. |
