Application of Plant Growth Regulator in Persimmon.

- Feb 07, 2018 -

1. Prevent the fruit from falling.

Gibberellin(Gibberellic Acid). Spray 500mg/l of gibberellin + 15mg/l of PCPA in the crown of persimmon from the flowering period to the fruiting period, which not only enhance fruiting rate,also can improve the size of fruit.

IBA(indolebutyric acid). At the young fruit stage, use 1, 000mg/l of indolebutyric acid to apply to the top or sepals of the fruit. 

2,4-D(2.4-dichlorophenoxyacetic acid). Spray 5-10mg/l of 2.4-D liquid in the blooming period.

Brassinolide(BR). The female buds were sprayed with brassinolate 3 days before flowering, and then spray 0.1mg/l of brasthenin after 2 weeks again.

KT-30. Spray 10mg/l of KT-30 in 10 days after the blooming period


2. Keep persimmon fresh

Gibberellic Acid. The persimmon is harvested 7-10 days before it is fully mature, and soaked for 5-10 minutes in 100 to 500mg/l of gibberellin. Then install persimmon into a polyethylene film bag of 0.02-0.06mm, which can keep the persimmon for more than 1 month at normal temperature.


3. Help the persimmon to fade and ripen.

Ethephon. When the fruit reaches the level of harvesting, use 500mg/l of ethylene spraying persimmon.The fruit can be converted to yellow in 10 days and then softened in 15 days. Pick the ripe persimmon out and soak it in 300 to 800mg/l of ethephon solution. And take it out a few seconds later. After drying, store the persimmon according to the normal standard, and it can be eaten after 3 to 5 days. However, there is serious shortcoming in the soaking method. It is that the persimmon cover is easy to water and the storage is extremely poor, which leads to the short selling time in the market.


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