以有效茎为选择指标时，可在茎较高中选择鲜蔗产量较高的材料。
Selecting productive stem per ha can get better results from higher stem height on the condition of fixing other traits.
通径系数分析结果，有效茎数对蔗茎产量的直接正效应大于株高和茎径；
Path coefficient analysis indicated that the positive direct effect of millable stalks on cane yield was bigger than those of plant height and stalk diameter.
田间试验表明 ：（ 1 ）施用不同肥料对甘蔗出苗数、有效茎数和甘蔗糖分影响较小 ；
Field experiments show that: (1) Various fertilizers have a very weak influence on the emergence rate, effective stem and sugar rate of sugarcane;
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