How is gibberellin used on fruit trees? What are its functions?

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Release time:

2020-05-30

Question: How is gibberellin used on fruit trees? What are its functions?

Answer: Gibberellin is a broad-spectrumplant growth regulator, a natural endogenous that exists widely in plantsgibberellic acid(I. e., gibberellin), is one of the very important hormones that promote plant growth and development. In fruit trees, gibberellic acid is produced synthetically in germinating seeds, growing buds and leaves, blooming flowers, forming fruits, and fruit tree lineages. Gibberellic acid is transported upward in the root, while it is transported downward at the top of the fruit tree. The transmission channel is in the phloem of the fruit tree, and the speed is equivalent to the movement speed of photosynthesis products.
The synthetic gibberellin sprayed on fruit trees is absorbed by branches, leaves and flowers and fruits, and transmitted to the functional parts with various physiological functions. ① break the fruit tree dormancy, promote germination and flower bud differentiation. ②Enhance the photosynthesis of leaves, promote the vegetative growth of fruit trees, promote the fruit setting of fruit trees, and improve the fruit setting rate. ③ Delay the maturity and senescence of fruit trees and fruits, and enhance the preservation of fruits. ④ Change the proportion of female and male flowers in fruit trees, induce unisex fruiting, regulate flowering, promote fruit growth and improve fruit setting ability.
When in use, gibberellin crystals, powder, first with more than 60 degrees of alcohol dissolved, and then in accordance with the use of the concentration of water. Gibberellin soluble powder and emulsifiable concentrate, you do not need to use alcohol, directly add the right amount of water to use. When gibberellin is used as a fruit setting agent, it should be used with good effect under the condition of sufficient water and fertilizer. The use of cytokinin can improve the pot life and use effect of gibberellin. Gibberellin is strictly prohibited as a seedless treatment agent on the quality of grapes such as Jufeng to avoid fruit freezing.