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赤霉素对甘蔗生长发育及其产量的效应,正如和其他作物一样表現极为复杂。从我們的試驗結果也可初步看出,赤霉素虽有促进甘蔗生长、增粗、叶面积加大和糖含量提高等作用,但也有抑制分蘗(尤其是前期分蘗)的作用。这种促进和抑制作用,对甘蔗生产来讲都是有利的。因为前者能提高甘蔗的产量和品质。后者,能减少后期的无效分蘗和促进前期分蘗的成林率,避免养分过多的消耗,从而也間接的有利于产量和品质的提高。此外,赤霉素能提高糖含量的結論,与国外报导有矛盾。因此,有必要进一步研究其药效和在生产上推广应用等問題。
The effect of GA on the growth and yield of sugarcane is just as complex as that of other crops. From the results of our experiments, it can be initially concluded that gibberellin can also inhibit the tillering (especially the early tillering) though it can promote the growth and thickening of sugar cane, increase the leaf area and increase the sugar content. This promotion and inhibition, are beneficial for the production of sugar cane. Because the former can improve the yield and quality of sugar cane. The latter can reduce the late invalid tillers and promote the early tillering rate, avoid excessive nutrient consumption, which is also indirectly conducive to the increase of yield and quality. In addition, gibberellin can increase the sugar content of the conclusion, there are contradictions with foreign reports. Therefore, it is necessary to further study its efficacy and promote the application of production and other issues.