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以新台糖22号茎尖脱毒健康组培杯苗为材料,设每667m2种植1300株(处理A)、1600株(处理B)、1900株(处理C)、2100株(处理D)、2400株(处理E)5个种植密度,比较不同种植密度对分蘖苗数、成茎率、株高、茎径、产蔗量、总芽数等性状的影响。分蘖苗数、分蘖苗成茎率均以处理A最多,每株达6.64条和56.33%,每株组培苗的分蘖苗数和成茎率随种植密度的增加而减少;株高以处理B最高,达219.2m,其次为处理A、C,各处理之间差异不显著;茎径以处理A最粗(2.48cm),其次为处理B(2.43cm),茎粗随种植密度的增加而降低;单位面积有效茎、产蔗量、芽数等性状表现相似,随着种植密度的增加呈现先升后降的趋势,其中有效茎、产蔗量、芽数以处理C最多,分别达每667m25581条、5633.6和103566个芽,其次为处理B,最少为处理A;脱毒健康组培杯苗每667m2种植1600～1900株为宜,单位面积可获得较高的蔗产量和总芽数。
A total of 1300 plants (treatment A), 1600 plants (treatment B), 1900 plants (treatment C), 2100 plants (treatment D), 2400 plants The effects of different planting densities on the tillering number, stem yield, plant height, stem diameter, cane yield, total bud number and other characteristics were studied. The number of tillering seedling and tillering seedling were the highest in treatment A, reaching 6.64 and 56.33% in each plant. The number of tiller seedlings and the percentage of stems per plant were decreased with the increase of plant density. The highest was 219.2 m, followed by the treatments A and C. There was no significant difference among treatments. The stem diameter was the heaviest for treatment A (2.48 cm), followed by treatment B (2.43 cm) Decreased; effective stems per unit area, the amount of cane output, the number of buds and other traits similar, with the planting density increased first and then decreased, of which effective stems, cane production, buds to deal with C up to 667m25581, 5633.6 and 103566 buds, followed by treatment B, and at least treatment A. The detoxification healthy tissue culture seedlings planted 1,600-1900 plants per 667m2, and the higher yield and total bud number per unit area could be obtained.