甘蔗全息定域选种与高产栽培

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．

Bioholoscope for the Process of Specific Selection and High-yield Cultivation for Sugarcane

Fetid experiment continued for three years with several sugarcane cultivars, and data of growth and yield of different seedlings propagated with buds in top, middle and basal stalk were collected. The results showed that there were following better characteristics in seedlings propagated with middle buds: higher germination rate, more tillers, faster stalk pushing, more millable stalks, higher plant, greater stalk diameter.Its mean cane yield was 25.7% higher than that of terminal bud,38.9% higher than that of basal bud. Its ratoon cane was also superior both in cane yield and sucrose yield.It was proved that sugar cane is belong to middle-section-advantage crops.Its genetic advantage section is in the middle of stalk, so deterioration of sugar cane cultivars can be avoided in some degree by propagating with middle buds, and it will contribute to both cane yield and sucrose yield.