不同浓度蔗丰灵对甘蔗品种桂糖15号生长、产量和品质的影响

在分蘖初期分别用蔗丰灵１／４００、１／５００、１／６００浓度叶面喷施甘蔗中熟种桂糖１５号，几种处理对桂糖１５号整个生长期中＋１叶的叶绿素含量、光合酶ＮＡＤＰ－苹果酸酶都有促进效应。在分蘖初期至拔节初期，几种浓度处理的过氧化物酶活性低于对照，而在甘蔗伸长中期至砍收，则明显高于对照。１／４００浓度处理对桂糖１５号的株高和茎径生长有明显的抑制；１／５００和１／６００浓度处理的能有效促进茎径生长，提高成茎率。最终增产效应是１／６００＞１／５００＞１／４００＞ＣＫ；增糖效应则以１／４００和１／６００为佳。

Effects of Zhefenglin on the growth, yields and quality of sugarcane variety of Guitang 15

Applying of Zhefenglin of 1/400, 1/500, 1/600 concentrations at the early stage of tiller promoted chlorophyll content and the activity of NADP-malie enzyme of +1 leaves of variety Guitang 15 throughout the whole growth period, and lowered the activity of peroxidase, especially from the midle of elongating stage to the harvest time. 1/500, 1/600 concentration treatments promoted stalk diameter and maked stalk efficiency while 1/400 decreased stalk height and diameter abviously. The final promoting effects of various concentrations, on cane yields are 1/400, 1/500, 1/600 > CK, while on the sugar content 1/400, 1/600 are better.