What causes bitter melon fruit abortion
Fruit abortion in bitter melon is a widespread phenomenon in cultivation: a young fruit that is in the middle of growing and developing suddenly stops growing, and gradually turns yellow and shrivels from between the fruits to the whole fruit, until it dries up, seriously affecting yield and income. So what are the causes of bitter melon fruit abortion? Let's take a look together.
1. Unsuitable temperature
Bitter melon has high temperature requirements during the fruiting period. If the daytime temperature is higher than 32 degrees or lower than 20 degrees, or the nighttime temperature is lower than 18 degrees, photosynthesis in its leaves will be blocked, respiration will increase, nutrient consumption will be greater, and nutrient accumulation will be unfavorable, thus causing malnutrition and fruit abortion. When cucurbit vegetables encounter low-temperature freezing damage during growth, because the ground temperature is too low, root development will be poor, affecting absorption capacity and causing insufficient nutrition in young fruits, resulting in fruit abortion.
2. Carbon dioxide concentration too low ⟧7⟧Nowadays, in order to increase yield and facilitate management, many growers use greenhouse cultivation techniques, and bitter melon is relatively sensitive to carbon dioxide. Once the carbon dioxide concentration in the greenhouse is too low, fruit abortion will occur.
Nowadays, in order to increase yields and make management easier, many growers use greenhouse cultivation techniques, and bitter melon (Momordica charantia) is relatively sensitive to carbon dioxide; once the carbon dioxide concentration in the greenhouse becomes too low, it will cause the fruit to abort.
3. Improper management
During planting, if the cultivation density is too high, the field becomes closed and shaded, and ventilation and light transmission between plants are poor, which is unfavorable for photosynthesis, produces fewer assimilates, and easily leads to fruit abortion. In addition, improper fertilizer management can cause the plants to lack water and fertilizer. When certain essential trace elements are lacking, it will also affect the normal photosynthesis of the plants, thus causing fruit abortion.
4. Excessive growth
Under the factors of excessive nitrogen fertilizer application, excessively high temperature, and excessive water, the stems and vines of bitter melon grow thick and strong, the leaves become thick and fleshy, and the plant grows too vigorously, while the fruits grow slowly, and the flowers and fruits gradually abort because they cannot obtain assimilates.
5. Pests and diseases
Many diseases directly harm leaf growth, causing leaves to wither and necrose, and in severe cases causing the plants to dry up, making normal photosynthesis impossible and leading to fruit abortion. In addition, pests such as aphids and whiteflies also suck the sap of the leaves, and their excrement also contaminates the leaves, destroying leaf photosynthesis and causing insufficient nutrition in young fruits, resulting in fruit abortion.
The above is an introduction to the causes of bitter melon fruit abortion. We hope it can help you. To learn more related knowledge, please stay tuned to us.