What are the causes of mango fruit cracking? Detailed explanation of prevention and control measures

In mango production, fruit cracking often occurs, generally in the late stage of fruit expansion. Fruits that were growing well develop cracks because they grow too fast, seriously affecting quality, and some fruits even crack at the young fruit stage. So what causes mango fruit cracking? Let's find out together.

1. Rapid changes in moisture

In the late stage of fruit growth, if hot and dry weather occurs, the fruit's water content decreases and sugar accumulates more. If rain suddenly falls or too much water is applied, the orchard's moisture becomes imbalanced, causing the root system to absorb a large amount of water, which leads to rapid fruit expansion. The peel's growth rate cannot keep up with the rate at which the flesh absorbs water, causing the peel to split and form cracks.

Prevention and control method: During fruit growth, attention should be paid to a uniform water supply. Especially during heavy rain periods, drainage measures should be well implemented. During drought, water should be applied in time, but the amount of water applied should be noted. At the same time, water should also be sprayed on the canopy to increase humidity, lower temperature, and promote peel growth, so as to avoid fruit cracking.

2. Improper use of hormones

Changes in plant endogenous hormones can affect the growth rates of the peel and flesh. When the growth rates of the two lose balance, fruit cracking will result. To promote fruit expansion, many fruit growers often use swelling agents. Improper use can also cause fruit cracking. After using swelling agents, cell division becomes vigorous, and the flesh growth rate exceeds the peel growth rate, causing fruit cracking.

Prevention and control measures: Attention should be paid to the application of growth regulators, and suitable varieties, weather, and concentrations should be selected for use. They must not be used blindly or arbitrarily. During the expansion stage, anti-cracking agent can be sprayed 1-2 times to moderate fruit growth rate, increase peel toughness, and reduce fruit cracking.

3. Nutritional imbalance

During growth, fruits need to absorb various nutrient elements. If the fruit lacks calcium, fruit cracking will be caused. In addition, there is antagonism and coordination among nutrient elements. If the absorption of one element is excessive, it will inhibit the absorption of other elements, which can also cause fruit cracking. Many fruit growers apply calcium fertilizer during the fruit expansion stage, but fruit cracking still occurs. This is caused by nutritional imbalance due to antagonism among elements. Research shows that nitrogen has antagonism with calcium and magnesium ions, and excessive nitrogen will affect the plant's absorption of calcium and magnesium ions.

Prevention and control measures: When fertilizing, attention should be paid to balanced nutrition to prevent nutritional imbalance caused by antagonism among elements. In the late fruit stage, boron fertilizer can be added to promote the fruit's absorption of calcium and reduce fruit cracking.

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