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The Application of Plant Growth Regulator on Mango Trees

2021-10-09
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Control the growth trend of the tree effectively, it can help to increase the yield.
Then let's talk about what kind of plant growth regulator can get help.


1. Control the growth trend of the tree
Paclobutrazol    
    In October, dig a round ditch(diameter:10-15cm), according to the size of the tree’s crown, use  Paclobutrazol 15%WP per tree(30-40g).
It can significantly reduce the shoot length of mango tree and Control the growth trend of the tree effectively. At the same time, it also
promoted the flowering and Fruiting of young trees and increased the yield.
2. Promote flowering
Ethephon    
    From December to February of the following year, spray 100-200mg/L Ethephon for 3-5 times,
it can kill young shoots and promote the differentiation of Mango flower bud.
3. Delay flowering
GA3    
    From November to December, before the differentiation of Mango flower bud, spray 100-200mg /L GA3 for 2-3 times.
It can inhibit the flower bud differentiation and delay the flowering period by about 14 days.
4. Prevent shedding
GA3    
    After withering, when the fruit is as big as an olive, spray 50-100mg/L GA3 once,
It can improve the fruit setting rate significantly and increase the yield by 10% ~ 15%.
1-Naphthylacetic Acid(NAA)    
After withering, when the fruit is as big as peas, spray 50-100mg/L NAA once, It can reduce physiological fruit drop.
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