Causes of Mango Fruit Cracking and a Detailed Guide to the Latest Control Measures

In mango production, fruit cracking often occurs, generally appearing in the late stage of fruit expansion. Fruit that was growing perfectly well develops cracks because it grows too quickly, seriously affecting quality. Some fruit also develop cracking at the young fruit stage. So what causes mango fruit cracking? Let's find out together.

1. Drastic changes in moisture

In the late stage of fruit growth, if the weather is hot and dry, the fruit's water content decreases and sugar accumulates heavily. If rain suddenly falls or too much water is applied, the orchard's moisture balance is disrupted, and the roots absorb a large amount of water, causing the fruit to expand rapidly. The growth rate of the peel cannot keep up with the rate at which the flesh absorbs water, so the peel splits open and fruit cracking occurs.

Control method: During fruit growth, pay attention to a uniform supply of water, especially during heavy rain, when drainage measures should be well implemented. During drought, water promptly, but pay attention to the amount of water applied. At the same time, spray water on the canopy to raise humidity, lower temperature, and promote peel growth, so as to prevent fruit cracking.

2. Improper use of hormones

Changes in the plant's endogenous hormones affect the growth rates of the peel and the flesh. When the growth rates of the two lose balance, fruit cracking results. To promote fruit expansion, many growers often use swelling agents, and improper use can also cause fruit cracking. After using swelling agents, cell division becomes vigorous, and the flesh grows faster than the peel, causing fruit cracking.

Control measures: Pay attention to the application of growth regulators, choosing the appropriate variety, weather, and concentration, and do not use them blindly or arbitrarily. During the expansion stage, spray anti-cracking agent 1-2 times to moderate the fruit's growth rate, increase peel toughness, and reduce fruit cracking.

3. Nutritional imbalance

During growth, fruit needs to absorb a variety of nutrient elements, and if the fruit lacks calcium, fruit cracking will result. In addition, nutrient elements have antagonism and synergy among them. If one element is absorbed in large amounts, it will inhibit the absorption of other elements, which can also cause fruit cracking. Many growers apply calcium fertilizer during the fruit expansion stage, yet fruit cracking still occurs. This is caused by nutritional imbalance arising from antagonism among elements. Research shows that nitrogen has antagonism with calcium and magnesium ions, and excessive nitrogen affects the plant's absorption of calcium and magnesium ions.

Control measures: When fertilizing, pay attention to balanced nutrition to prevent nutritional imbalance caused by antagonism among elements. In the late fruit stage, apply additional boron fertilizer, which can promote the fruit's absorption of calcium and reduce fruit cracking.

The above is an introduction to the causes of mango fruit cracking and control measures. We hope it helps you. To learn more related knowledge, please stay tuned to us.