甘蔗新品种云蔗05-51在德宏蔗区的丰产性及稳产性分析

Analysis on High-yield and Stability of Sugarcane Variety Yunzhe 05-51 in Dehong Region

对云蔗05-51在云南省德宏蔗区2014—2015年各生态区域试验点的数据进行丰产性和稳产性分析。结果表明:云蔗05-51在各个试验的平均产量为115.56~154.73 t/hm^2,比ROC22增产13.56~63.99 t/hm^2,比ROC16增产30.98~67.95 t/hm^2。与双对照比,2014—2015年当中各个试验的增产量都在13 t/hm^2以上,增产均在12%以上,其中宿根蔗茎产量的增加幅度最大,2015新植和宿根蔗茎产量均超过双对照,并且差异极显著。云蔗05-51蔗茎产量和糖产量的高稳系数不管是新植还是宿根皆超过双对照,变异系数均小于双对照。云蔗05-51各个试验11月至次年3月的平均甘蔗蔗糖分均在14.5%以上,云蔗05-51属于早熟品种;总之,云蔗05-51丰产性突出、稳产性好、适应性广,是适合德宏蔗区大面积推广种植的甘蔗新品种,应用前景十分广阔。

The high-yield and stability of sugarcane variety Yunzhe 05-51 was analyzed form 2014 to 2015 in several test sites of Dehong area, Yunnan. The results showed that the average yield of Yunzhe 05-51 in each test was 115.56-154.73 t/ha, compared with ROC22 and ROC16, the yield increased by 13.56-63.99 t/ha and 30.98-67.95 t/ha, respectively. Cane yield increased by more than 13 t/ha （12%） in all test from 2014 to 2015 compared with the two control varieties, and the yield increase of ratoon sugarcane was larger than that of planting cane, and the yield of ratoon and planting cane was significantly higher than that of the two control varieties in 2015. The high stability coefficients of cane yield and sugar yield （either planting cane or ratoon sugarcane） of Yunzhe 05-51 was higher than the two control varieties, while their variation coefficients was less than the two control varieties. The average sugar content of Yunzhe 05-51 from November to March of the next year was more than 14.5%. In short, Yunzhe 05-51 was characterized by early-maturing, excellent productivity and stability as well as wide adaptability, which was suitable for planting large area in Dehong area, and vast potential for future development.