种植密度对香蕉生长及产量的影响

Effects of Planting Densities on the Growth and Yield of Banana

以“巴西”香蕉为材料,研究种植密度对香蕉生长及产量的影响。结果表明不同密度下茎高、茎周、绿叶数、叶面积相对增长率拐点值各不相同;不同密度下茎高、茎周、叶长、叶宽、果指数、果穂轴直径、果指长度之间无显著差异,而吸芽数随种植密度的增加而减少;单株产量随密度的增加而减小;单位面积(公顷)产量以种植密度3125株(1.6m×2.0m)最高,为89687.5kg,同时单位面积产量随种植密度的增加而增加,差异极显著。

Banana variety ＂Brazil＂ （Musa spp.） was planted in various densities to observe their effects on its growth and productivity. Results showed that the plant height, pseudostem diameter, leaf number, and the relative growth rate of leaf area varied under different planting densities. But the plant height, pseudostem diameter, leaf length, leaf width, number of fruit fingers per cluster, fruit stalk diameter and the length of fruit fingers were not significantly different under different planting densities. However, this variety was low in number of suckers per plant and yield per plant, but very significantly higher in yield per hectare under high planting densities. The highest yield was 89 687.5 kg/ha at the planting density of 3 125 plant （1.6 m×2.0 m）.