Characteristic Study of a New Sugarcane Variety GT39

甘蔗新品种桂糖39号的种性研究(英文)

[Objective] This study aimed to provide good commercial sugarcane vari-eties for Guangxi sugar industry. [Method] After regional and production test with sugarcane plants in two years and ratoons in one year, a new sugarcane variety GT39 characterized by good ratooning ability, high yield and sugar-content, and large stalks was bred by sexual hybridization between Yuetang 93/159 （male parent） and ROC22 （female parent） through the ＂Five Nurseries＂ breeding procedure, which was approved by Guangxi Crop Variety Approval Committee in March 2012. [Re-sults] The results of regional test showed that the average cane yield of GT39 was 97.2 t/hm2, 5.3% and 11.2% higher than the control ROC22 and ROC16, respective-ly; the average sucrose content was 14.07% from Nov. to next Feb, 0.05% higher than ROC22 and 0.02% lower than ROC16; the average sucrose content was 14.02 t/hm2, 9.1% and 10.4% higher than ROC22 and ROC16, respectively. [Conclusion] GT39 was suited to be planted in both dry land and paddy fields with medium-level or above fertility in Guangxi sugarcane-producing area.

[目的]为给广西蔗糖业提供优良的甘蔗新品种。[方法]以粤糖93/159为母本、ROC22为父本,进行甘蔗有性杂交育种,经过"五圃制"选育程序和广西2年新植1年宿根区域试验和生产试验,育成高产、高糖、宿根性好的大茎甘蔗新品种桂糖39号,于2012年3月通过广西农作物品种审定委员会审定。[结果]区域试验结果表明,桂糖39号平均产蔗量97.2 t/hm2,较对照新台糖22和新台糖16分别增产5.3%和11.2%;11月至翌年2月的平均蔗糖分为14.07%,比新台糖22高0.05%,比新台糖16低0.02%;平均含糖量为14.02 t/hm2,比对照新台糖22和新台糖16分别增加9.1%和10.4%。[结论]该新品种适宜在广西中等以上肥力的旱地和水田蔗区种植。