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试验选取当前主栽的玉米杂交种先玉335、丹玉801和丹玉336为材料,采用裂区试验设计,研究不同密度下分蘖处理对品种根系、株高、穗位高和产量的影响。结果表明,随种植密度增加,分蘖数量逐渐减少,苗期分蘖对根系的生长具有一定促进作用,掰除分蘖能够提升玉米株高和穗位高,特别是对玉米苗期株高提升明显,同密度下是否掰除分蘖产量差异不显著。苗期保留分蘖对玉米生长发育和产量影响不大。
In this study, the current main maize hybrids, Xian Yu 335, Dan Yu 801 and Dan Yu 336, were selected as experimental materials to study the effects of different tillers treatments on the root, plant height, ear height and yield of cultivars. The results showed that with increasing planting density, the number of tillers gradually decreased, tillering at seedling stage had a certain promotion effect on root growth. Breaking down tillers could increase plant height and ear height of maize, especially on maize seedling height, Density whether breaking off tillering output difference is not significant. Retention of tillers at seedling stage had little effect on the growth and yield of maize.