What causes fruit abortion in zucchini? Here is the latest analysis
Zucchini fruit abortion is a common physiological disorder during the growth of zucchini. Generally within 3 days after the female flower opens, the young fruit shows chlorosis and yellowing, becoming thin and soft. Fruit enlargement is clearly hindered, and it begins to shrivel, basically losing its commercial value, leading to rotten fruit and fruit drop. So what are the main causes of zucchini fruit abortion? Today the editor will give you a brief introduction, let's take a look below!
1. Temperature
Temperature is the main cause of zucchini fruit abortion. During the growth of zucchini, if the daytime temperature exceeds 35 degrees and the nighttime temperature is higher than 20 degrees, it will seriously affect photosynthesis in zucchini and strengthen its respiration. The stems and leaves receive a large amount of carbohydrates, causing problems such as excessive vegetative growth and malnutrition in the zucchini vines, resulting in fruit abortion. However, the temperature should not be too low either. If the daytime temperature is below 20 degrees and the nighttime temperature is below 10 degrees, then the absorption capacity of the roots will also be affected, and fruit abortion will likewise occur.
2. Light
Light is very important for the growth of zucchini. Especially during the flowering period of zucchini, if there is continuous cloudy and rainy weather, the duration and intensity of natural light will drop significantly. In addition, the temperature difference between day and night is small, which affects photosynthesis in zucchini. The nutrients consumed by the whole plant far exceed the nutrients produced by the zucchini, thus causing fruit abortion due to insufficient nutrients and other reasons.
3. Density
Planting density is also a cause of zucchini fruit abortion. When planting zucchini, if the planting density is too high, the zucchini plants will compete with each other for growth effects. The aboveground parts will also compete with each other for growth space. Once the leaf area of the zucchini reaches 4 or more, it will reduce the permeability of the zucchini plants, and will also inhibit photosynthesis in zucchini, consume excessive nutrients, and increase the rate of fruit abortion.
4. Pollination
During the flowering period of zucchini, if pollination is poor or artificial pollination is not carried out at all, then the zucchini ovary cannot produce auxin, causing the embryo growth inside the fruit to be hindered. Moreover, while the plant is growing vegetatively, it will also compete for the nutrients needed for fruit growth. When the growing nutrients of the female flower are insufficient, the plant auxin content in the ovary will decrease significantly, thus causing zucchini to fail to set fruit and resulting in fruit abortion.
The above is a brief introduction to what causes zucchini fruit abortion. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!