Causes and Preventive measures of jackfruit Fruit cracking

Jackfruit is a tropical fruit, its shape is similar to durian, but the pulp is completely different, and the weight is far more than durian, is the heaviest fruit in the world, generally heavy 5-20 kg. Its fruit is very easy to crack when it is ripe, which is a common physiological disease of jackfruit, so what is the cause of its fruit cracking? How to prevent fruit cracking? Let's take a look at the detailed introduction.

1. The cause of fruit cracking

The main reason for jackfruit's fruit cracking is that the fruit is too large. When the fruit is expanded and mature, the pericarp is thin and not tough enough. At this time, the temperature is sometimes high and rainy, which can easily lead to fruit cracking. In addition, because of the rain or sudden sunny after a long drought, watering should be controlled when the fruit expands rapidly. if the watering is too large, it will cause the fruit to expand faster and the peel can not bear and crack the fruit; in the early stage of growth, because the climate and soil are too dry, the plant is lack of moisture, and sudden rainfall after fruit will also lead to fruit cracking. On the contrary, in the early growth of long-term overcast and rainy season, and then suddenly clear, there will also be fruit cracking, these two phenomena mainly occur in summer, summer high temperature and rainy, climate changeable. Another reason is fruit cracking caused by lack of calcium or other trace elements.

2. Symptoms

The cracking fruit is generally shown as longitudinal cracking, and a few are horizontal cracking. After cracking, the yellow and white pulp will be exposed. After a period of time, the bacteria will invade with the cracking fruit, and the pulp will grow black and moldy until it becomes black and rotten.

3. Preventive measures

Targeted prevention and control according to various causes of fruit cracking, in the young fruit stage, increase the application of strong fruit fertilizer, mainly organic fertilizer with nitrogen, phosphorus and potassium fertilizer, and increase the application of potassium, calcium and magnesium fertilizer. In addition, excessive consolidation or drought of the soil will affect the absorption of fertility by the root system, so fertilization can be combined with ploughing to deeply turn the soil of the orchard, loosen the soil, make the root system stretch and improve its absorption capacity. When the soil is deficient in calcium, 50 kg of quicklime can be applied per mu to maintain the calcium content of the soil, while 0.5% calcium chloride is sprayed on the leaf surface.

In view of the situation of rain or sudden sunshine after a long drought, preventive measures should be taken to water the orchard in time during a long drought to avoid fruit cracking caused by rapid expansion of fruit due to soil rainfall; also, drainage and waterlogging measures should be taken during long rain to avoid excessive stagnant water leading to root retting or affecting root absorption of nutrients and calcium to avoid fruit cracking.

The above are the reasons for jackfruit's fruit cracking and preventive measures. I hope I can help you. If you want to know more about jackfruit's planting knowledge, please follow us.