贵州旱坡地蔗区甘蔗新品种的适应性

Adaptability of New Sugarcane Varieties in the Upland Slope Field in Guizhou

以F134为对照，对综合性状较好的10个甘蔗新品种（系）于2004～2005年在质地较差、降雨量少、干旱严重的旱坡地进行适应性比较和筛选试验。结果表明，蔗茎产量2年（新植和宿根）平均达4．07～5．24t／667m^2，比对照增产15．95％～44．44％，蔗糖分含量达14．55％～16．44％，糖分增加0．03-1．92个百分点。综合性状表现好的品种有ROC22、RB72454、闽糖86-2121、桂糖16、桂糖24，可在贵州旱坡地蔗区大面积推广；表现较好的品种有甜城14、ROC26、云蔗89-07、云蔗89-157，可在旱坡地蔗区根据品种搭配需要选择推广；表现较差的是桂糖17，只能在水肥条件较好的蔗区推广。

Ten new sugarcane varieties （lines） with better comprehensive character were tested on the upland slope field to investigate their adaptability during 2004-2005. The results show that the average stem yield （new planting and biennial root） is 4.07-5.24t/667m^2, 15.95%-44.44% higher than CK and their sugar content is 14. 55%-16.44%, 0.03%- 1.92% higher than CK respectively. ROC22, RB72-454, Mintang 86-2121, Guitang 16 and Guitang 24 with better comprehensive characters can be popularized in the upland slope field areas of Guizhou, Tiancheng 14, ROC 26, Yunzhe 89 07, and Yunzhe 89-157 with good characters should he popularized according to the variety combination and C-uitang 17 can be popularized in the sugarcane planting areas with better water and fertilizer condition.