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采用多个甘蔗品种连续３ａ进行田间试验，比较梢部、中部和基部节位芽苗生长和产量的差异．结果表明，中部节位芽苗出苗率高，分蘖力强，伸长拔节快，有效茎数多，植株高，茎较粗；蔗茎产量平均比梢部节位芽苗增产２５．７％，比基部节位芽苗增产３５．６％；单位含糖量平均比梢部节位芽苗增产２６．８％，比基部节位芽苗增产３８．９％；其病根蔗也有增产增糖的效果．证实了甘蔗属中部优势作物，其强遗传势区位于蔗茎中部，取中部节位芽做种有助于防止甘蔗品种退化，达到甘蔗高产高糖栽培的目的．
A number of sugar cane varieties were used for 3 years in a field experiment to compare the differences of shoot growth and yield between the shoot tip, the middle and the basal nodes. The results showed that the germination rate of the mid-node buds was high, the tillering ability was strong, elongation and jointing were quick, the number of effective stems was more, the plant height and the stems were thicker. The yield of cane stems increased by 25.7% The average sugar content increased 26.8% than that of the shoots of the shoots of the shoots at the node and increased by 38.9% effect. Confirmed the sugarcane is the central advantage of crops, the strong genetic potential area is located in the middle of cane stems, taking the central section of buds do help to prevent the degradation of sugarcane varieties to achieve high sugar cane cultivation purposes.