Causes of fruit cracking of Teng twist grape and its control measures

Teng twist grape is a popular kind of grape. Its fruit is large and sweet, with many fruit juices and large grains, which can easily lead to fruit cracking. After fruit cracking, it will soon be infected with other diseases and rot in the season of high temperature and humidity, resulting in economic losses. So what is the cause of the cracking of Teng twisting grapes? How to prevent and cure it? Let's take a look.

First, the cause of fruit cracking

1. Drastic changes in moisture

In the process of fruit development, the cracking fruit caused by drastic changes in soil moisture, in summer, the temperature is high, the evaporation is large, the soil is very easy to dry, and the water is insufficient. If there is sudden heavy rain or flood irrigation, the root system will absorb a large amount of water and transport it to the pulp cells, resulting in the rapid expansion of pulp cells, while the peel expansion can not keep up with the pulp expansion rate, which will lead to pericarp rupture.

2. Improper management

If the ear is infected with powdery mildew, it will also damage the pericarp and cause cracking. If the plant is defoliated in the early stage, the transpiration water decreases, and a large amount of water flows to the fruit, resulting in an increase in the swelling pressure of the fruit, resulting in cracks in the pericarp.

II. Prevention and control methods

1. Adjust moisture

Stable and balanced soil moisture is the most fundamental measure to prevent grape fruit cracking, especially in the sensitive period of fruit cracking, we should always pay attention to the change of soil moisture, prevent the drastic change of soil moisture, keep the soil surface from whitening and keep the soil moist all the time. Watering in time during drought, but pay attention to the amount of water, should not be watered too much at one time, after entering a sunny day after the rainy season, should be irrigated for several consecutive days to fight drought, when the amount of irrigation should be sufficient, there is no border surface, until the berries begin to absorb. Or pay attention to the weather forecast, irrigation before the heavy rain, can effectively reduce the degree of fruit cracking. It is also possible to lay a layer of straw 5-10 cm thick on the border in the high temperature season, which can play an excellent moisturizing effect.

2. Strengthen cultivation and management.

Strictly carry out the work of shaping, thinning flowers and fruits, so as to prevent the ears from squeezing each other because the growth is too dense, strengthen the control measures of diseases and protect the photosynthesis of leaves. Increasing the application of phosphorus and potassium fertilizer, especially in the hard core stage, can reduce the phenomenon of fruit cracking. After the first physiological fruit drop, spraying growth regulators can obviously reduce the phenomenon of fruit cracking.

The above is the introduction of the causes and control measures of Tenglun grape cracking. I hope it can help you. If you want to know more about it, please pay attention to us.