Causes of Kiwifruit Fruit Cracking and the Latest Control Measures

Fruit cracking is a common phenomenon in kiwifruit production. It occurs more frequently when novice growers cultivate the crop, bringing relatively large economic losses to growers. So what causes kiwifruit fruit cracking? How should it be controlled? Let's take a look together.

I. Causes of Fruit Cracking

1. Improper variety selection

There are many kiwifruit varieties, and the biological characteristics of the varieties are related to certain factors. If the local planting conditions are not suitable for growing a particular variety, then fruit development will be affected, and fruit cracking may occur.

2. Improper water and fertilizer management

During planting, if there is drought in the early stage and then the amount of watering is suddenly increased in the later stage, the flesh absorbs water and expands rapidly, directly splitting the skin open and causing fruit cracking.

3. Calcium and boron deficiency

Calcium deficiency in the fruit can also cause fruit cracking, generally starting from the growing point. In plants, calcium can move only by relying on the pulling force produced by leaf transpiration. Therefore, calcium supplementation should be combined with soil application and foliar spraying for a better effect. In addition, boron deficiency in the fruit can also cause fruit cracking. Boron can increase the toughness of the fruit skin to prevent cracking, and can also transport sugars into the fruit grains, thereby increasing the sugar content of the fruit grains and reducing acidity.

4. Improper cultivation and management

Poor ventilation and weak light in the orchard can also lead to kiwifruit fruit cracking. In addition, poor soil drainage and irrigation conditions, severe soil acidification, soil compaction, and improper pest and disease control may also cause fruit cracking.

II. Control Measures

1. Select good varieties

Because different varieties among the same fruit trees have different genetic characteristics, maturity periods, and environmental conditions, varieties suitable for local planting should be selected when planting, and varieties with strong cracking resistance should be chosen as much as possible.

2. Carry out good field management

Do a good job in water management, especially when dry and wet climate changes are relatively large, water or apply topdressing in time to avoid fruit cracking. In addition, increase the application of calcium, boron, and potassium fertilizers to increase the thickness and toughness of the fruit and strengthen tree vigor. During the fruit expansion and ripening period, spray fluid calcium or active calcium once every 7-10 days, for 2-3 consecutive sprays, which can reduce fruit cracking. In addition, do a good job in pest and disease control, improve the planting environment, and increase the organic matter in the soil.

3. Use swelling agents reasonably

The abuse of plant growth regulators is also one of the important causes of fruit cracking, so swelling agents should be used reasonably, or not used at all.

The above is an introduction to the causes of kiwifruit fruit cracking and control measures. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.