Application of Plant Regulator in Mango

- Jan 22, 2018 -

1. Control the growth of the tree

Paclobutrazol. In October, dig a circular groove 10 to 15 centimeters in 100 centimeters around the tree trunk. According to the size of the canopy, 15% of the Paclobutrazol 30-40g was applied to each mango tree. burying the Paclobutrazol in the soil around the mango trees can obviously reduce the tip length of mango trees and inhibit the apex superiority, effectively control the tree potential, and also promote the flower and fruit of the mango trees, significantly increase the yield.


2. Promote flowering

During the period from December to next December, the flower of mango tree begin to physiological differentiation. It is time to stop vegetative growth of the Mango twig terminals. If the plant still shoots in the bud, it must be removed or removed with a potion. Using 400-800mg/L of ethephon spray on the twigs, then the shoots can be killed four days later, and promote the flower differentiation. The following herbs can control the growth of mango tree tops.

Paclobutrazol. From November to January, dig a 10cm deep shallow trench at the drop of the crown of the tree, and then evenly sprinkle 15% of the Paclobutrazol moisturizing powders 2g and keep the soil moist, which can effectively promote the flowering of mango trees. However, the residual time of Paclobutrazol in soil is longer and cannot be used for years.

Ethephon. During the period from December to February, Use a concentration of 100-200mg/l ethephon, and spray 3-4 times every 15 days, which can significantly promote the blossom of mango tree.

Butyl hydrazine. From December to January, the mango trees are sprayed butyryl hydrazine  between 800 and 1000mg/l every 15 days and continuously spray 3 or 4 times, which can also promote mango blossoms.


3. Delayed flowering

Paclobutrazol. In the next 2-3 months, 15% Paclobutrazol wet powder used in the soil with 15 to 30g can delay the flowering of mango until June, and the harvest period is between September and November, and the quality are indistinguishable from normal mango.

Gibberellin. Before the mango flower differentiation between November and December, the flower bud differentiation of mango can be inhibited by the 2-3 times continuous spray with 100 to 200mg/l gibberellin, which can inhibit the differentiation of flower buds and delay the flowering period for about 2 weeks.

4. Protect the fruit

Gibberellin. The mango trees are sprayed by 50 to 100mg/l gibberellin at the time of the flowering of the mango tree and the size of the fruit like olives, which can significantly increase the yield of the fruit by 10-15%.

Naphthalene acetic acid. After the flower period end and the size of fruit is like peas, the fall of the fruit can be reduced by a respective spray of 50 to 100mg/l Naphthalene acetic acid.

2,4-D. Spraying 5-10mg/l of 2, 4-d on the mango tree crowns at 7 to 10 days after flowering can effectively reduce the fall of the fruit. Because 2, 4-d also is a herbicide, so don't increase your concentration when you use it.





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