果利达植物调节剂在荔枝生产上的应用研究

The preliminary test study of the Guo Li Da plant growth regulator applied to litchi

应用湛江师院研制的果利达植物调节剂,对荔枝进行了初步应用试验,结果表明:(1) 果利达植物调节剂可以提高荔枝座果率,其中果利达3 # 效果最好,于盛花期使用40 、20 、10 和5ppm ,穗平均座果率分别比对照提高6 .6 % 、94 .6 % 、37 .6 % 和148 .6 % ;(2) 果利达调节剂用于荔枝,较低浓度(10 、5ppm) 座果效果比较高浓度(40ppm) 好;落花期用药比盛花期用药效果好,两次用药比一次用药效果好;(3) 在荔枝上应用果利达调节剂40 、20 、10 、5ppm ,使荔枝果实增大,平均单果重比对照分别提高17 .43 % 、5 .8 % 、10 .8 % 和20 .7 % ,两次用药平均单果重提高55 .3 % ,可食部分百分含量也有所提高.

The Guo Li Da plant growth regulator(GLR),wkich is prepared by Zhan Jiang Normal Collegc,is applied initially to litchi.The preliminary test on litchi shows:(1)The rate of fruit bearing and keeping is raised by using GlR.By using GLR 3 # 40,20,10 and 5ppm during florescene,the average fruit-bearing-and-keeping rate on per fringe is raised by 6.6%, 94.6% 37.6% and 148.6% against that of not using GLR,and the effect of GlR 3 # is the best.(2)The effect of bearing and keeping fruit by using the GLR lower concentration (10ppm,5ppm) is better than that by using the bigger concentration (40ppm)and that of using the regulator during seasons of flower falling or young fruit is better than that of during florescene,and that of using the regulator twice is better than that of using it only once.(3)The fruit of litchi gets bigger by using GLR 40,20,10,and 5ppm than that of not using it .and the average weight of per fruit is raised by 17.43%, 5.8%, 10.8% and 20.7% against that of not using the regulator.The average per fruit weight of the using the regalator twice increases by 55.3% against that of not using it.And the percentage of the edible part is incrcased too.