我国主要植蔗省(区)宿根蔗一般占植蔗面积40—60%,它的产量高低对甘蔗平衡增产有很大的影响。许多蔗区由于宿根蔗低产减产,影响了甘蔗单产的提高和总产的增加。一些蔗区为了减少宿根低产的影响,采取多种新植蔗,少留或不留宿根蔗。这样,甘蔗单产提高了,但种蔗成本增加,开榨早期甘蔗蔗糖份降低,所以不是积极的办法。宿根蔗是由上季甘蔗地下芽萌发生长起来的。因此,了解地下蔗芽的变化情况和影响萌发因素,采取有效措施,促进其萌发生长,实 The main cane planting sugarcane (district) in our country usually accounts for 40-60% of the area of ​​sugarcane, its production level has a significant impact on the balanced increase of cane production. Many sugar cane areas due to low yields of ratoon sugarcane production, affecting the sugarcane yield increase and total output. Some cane areas in order to reduce the impact of low-yielding perennials, to take a variety of new sugarcane, less or no stay of cane. In this way, sugar cane yield increased, but the cost of growing cane, sugar cane sugarcane open early reduction, it is not a positive approach. Rooting sugarcane roots from the last season germination of underground buds grow up. Therefore, to understand the changes of underground sugarcane buds and affect germination factors, take effective measures to promote their germination and growth,