What are the reasons for low fruit set in peppers?
Pepper is one of the common vegetables in our lives. In the early growth stage, peppers grow well and bloom normally, but they just cannot hold their fruit, and the yield is relatively low. So what are the reasons for low fruit set in peppers? Let's take a look at the detailed introduction.
1. Poor flower bud differentiation
The main reason peppers set fruit with difficulty is high temperature. Especially when the nighttime temperature is too high, the plant's nighttime respiration is strengthened, less organic matter accumulates, and vegetative growth takes up a large amount of nutrients, inhibiting the plant's reproductive growth. In addition, when the daytime temperature exceeds 35 degrees, the flower bud differentiation of peppers will be affected, and many flowers will drop not long after blooming.
Solution: Peppers can grow normally at accumulated temperatures of 15-30 degrees, and the most suitable growth temperature is 20-28 degrees. During the fruit-setting period, the temperature must be well controlled, between 18-25 degrees during the day and between 15-18 degrees at night. Once the temperature exceeds 26 degrees, its fruit set rate will gradually decline.
2. Excessive vegetative growth of the plant
Improper fertilizer and water management during the flowering and fruiting period of peppers leads to vigorous vegetative growth, causing excessive growth of branches and leaves, which consumes a large amount of the plant's nutrients and thus results in a low fruit set rate.
Solution: When the plant is growing excessively, chemical regulation should be carried out in an appropriate amount to control vegetative growth and promote reproductive growth. At this time, growth-control products such as chlorophyll and Jinlv Zhuangyuan can be sprayed to appropriately control the plant's excessive growth. However, when spraying, be careful not to spray repeatedly to avoid causing phytotoxicity.
3. Boron deficiency
When peppers are setting fruit, they have a certain demand for the boron element. If boron is severely deficient, their fruit set rate will become extremely low.
Solution: The boron element plays a crucial role in the plant's flower bud differentiation. For the problem of boron deficiency, foliar fertilizer should be applied in a timely manner to promote flowering and fruit set.
4. Poor pollination
During planting, because the humidity in the greenhouse is relatively high, the pollen becomes sticky and cannot disperse in time, which leads to poor pollination and causes a low fruit set rate. Or poor pollination caused by other reasons will also affect the fruit set rate.
Solution: After the peak fruiting period of peppers, promptly prune off the side branches as well as weak branches and diseased branches, but do not prune excessively, so as not to reduce the fruit set rate. At the same time, pay attention to the humidity inside the greenhouse to avoid affecting pollen dispersal.
The above is an introduction to the reasons for low fruit set in peppers. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.