How is tomato fancy? How to reduce the occurrence of tomato deformed fruits?

Tomato deformity is mainly caused by too high and low temperature in the flower bud differentiation stage, and may also be caused by high concentration of flower dipping hormone, and may also be caused by insufficient nutrients for tomato growth and development.

The occurrence of tomato deformities is mainly caused by the lack of calcium and boron in the planting process. Reducing the occurrence of deformed tomato fruits should be controlled from the perspective of temperature and dipping time.

Tomato deformed fruit reason, the temperature is not suitable In the tomato flower bud differentiation period, the temperature is too high or too low, will affect the normal flower bud differentiation of tomatoes, once the early flower bud differentiation is not good, the later stage will lead to the appearance of deformed fruit, improper dipping operation The concentration of dipping hormone is too high, especially in the high temperature period, it is necessary to appropriately reduce the dipping flower concentration, otherwise it will be.

It is the failure to spray the nutrient solution in time during the ripening process of the tomatoes, coupled with the incorrect use of water-soluble fertilizers, which leads to the deformity. First of all, it is necessary to water regularly, and secondly, it is necessary to do a good job in field management, spray pesticides to prevent pests and diseases, and spray water-soluble fertilizers in a certain proportion.

Tomatoes (tomatoes) are prone to deformed fruits, and the fruits exhibit deformed and strange shapes, such as spire-shaped; The umbilicus is prominent, like an olecranon; polygonal; neoplasia (prominent nodulous protrusions in the umbilicus or proximal pedicle); Half-top shape (the top of the fruit is swollen, and the other half is not swollen or not swollen enough, forming a half of the fruit top). It happens for the following reasons:

1. Low temperature. In the flower bud differentiation and development period, if the low night temperature of 3 4 is encountered for 5 6 consecutive days, it is easy to produce deformed fruits. The 1st and 2nd ears of winter and spring tomatoes are prone to deformed fruits, which are mostly caused by low temperatures.

2. The seedling stage is elongated. If the low temperature or drought lasts for a long time, the seedlings are in the condition of inhibiting growth, the development period of the flower organ is elongated, and it is easy to be corked, and then transferred to suitable conditions, the corked tissue can not adapt to the rapid growth of the tissue, and it is easy to form cracked fruits and scar fruits.

3. Unreasonable fertilization. Too much nitrogen fertilizer will cause the flower buds to be over-differentiated, the number of ventricles will increase, and multi-ventricular malformation fruits will be formed.

4. Improper use of hormones. In order to prevent flower and fruit dropping, 2,4-d or tomato spirit is often used to dip the flowers, if the concentration is too high, repeated dipping of the flowers, or the temperature is too high when dipping the flowers, the soil is dry, etc., it is easy to produce deformed fruits. The unopened flowers are dipped in medicine, and it is easy to produce hollow fruits.

In addition, when the seedlings grow, the use of plant growth regulators with a large concentration or many times to control the seedlings, and then dip in the flowers are also easy to produce deformed fruits.

The influence of tomato varieties, in fact, the appearance of deformed fruits has a lot to do with the factors of variety, and the varieties of fresh tomato fruits are very easy to get sick, and the disease will be very serious. The first is to raise and select seedlings correctly. When selecting seedlings, for those seedlings that are too large, but only have four or five leaves, we must pay attention, because it is very likely that some drugs are used to control its growth, and it will be easy to appear The above question Tomatoes are one of the fruits and vegetables that are most prone to deformed fruits, such fruits, not only affect the appearance, but also directly affect the economic benefits.

The production of deformed fruits is not sudden, but has a long-term development process, and some deformed fruits can be the direct cause of deformed fruits at the time of flowering: the water and nutrients ** are too sufficient during flower bud differentiation and development, which exceeds the normal demand, and encounters a low night temperature of about 6 or less than 20 in a row, which is easy to induce polycarpel deformed fruits; The concentration of dipped anther liquid is too high, and the dosage.

<> tomato deformed fruit refers to various deformed fruits of tomato at low temperature, insufficient light, poor management of fertilizer and water, and improper use of plant growth regulators. Strengthen fertilizer and water management. Whether tomato fruit can develop into normal fruit mainly depends on the quality of flower bud differentiation.

Usually 25-30 days after the tomato germinates, 2-3 true leaves, the first inflorescence begins to differentiate. 35 40 days of the second flower began to differentiate, 60 days of the third flower also began to differentiate, if in the winter and spring seedling period, in 3 to 4 hours in a row about a week night temperature below 8 degrees, the first ear fruit has deformity, such as until the 7th leaf or this continuous low temperature occurs, the first 3 ears of fruit will have deformed fruit.

Tomato is also called tomato, is one of the more common vegetables, planted in various parts of our country is more common, with tomato can not only make a variety of food, but also can be eaten raw, the taste is excellent, rich in vitamins, deeply loved by the public, but inTomato flower bud formation and differentiation are sensitive to temperature, and tomatoes are planted from May to August, which is the period of high temperature, and higher temperature is not conducive to flower bud differentiation and development. Tomato seedlings are more than 8 hours a day, and the temperature is low between 6 and 8 degrees Celsius.

The main reason is that the temperature is too high, so it will lead to developmental malformations, and it is caused by lack of timely ventilation.

It may be that the temperature is relatively low, or the fertilization is not very good, the nutritional conditions are not very good, and the plant is aging, and the soil environment is not good.

It may be because of some fertilizer problems, and it is also because of some changes in the tomatoes, so these reasons are caused, which is a very unreasonable thing.

During the differentiation period of seedling flower buds, the night temperature was lower than 15 degrees, and it encountered rainy and weak light days. The average temperature is higher than 25 degrees, the number of flowers decreases, the flowers are small, the anthers are underdeveloped, the empty medicine, the stigma is slender, and the flower buds stop growing and turn yellow. partial application of ammonia fertilizer; or excessive water control, seedlings grow or grow into aging seedlings; Varieties that are not resistant to low temperatures are selected. All of the above factors can easily lead to the formation of deformed flowers in tomatoes.

Precautions for deformed tomato flowers:

1. It is necessary to choose varieties that are resistant to low temperature and weak light, have thick fruit skin, small changes in ventricular number, and less deformed fruits.

2. Strengthen the temperature management of seedlings, in order to prevent seedlings from growing up, take more cooling, especially the method of reducing the night temperature, although it can prevent growth, but produce many deformed flowers. To this end, the method of slightly controlling temperature and more water can be adopted. When the seedlings grow to 2 4 leaves, they enter the flower bud differentiation stage, and the temperature of the seedbed is maintained at 24-25 degrees during the day and 15-17 degrees at night, with a temperature difference of 8-10 degrees and a ground temperature of 18-22 degrees.

It is maintained until half a month before planting.

3. When the seedling is 15 cm high, start to control the water. If the seedlings are raised in plastic bowls, the bottom water should be poured enough when the seedlings are divided, and the seedlings can also be managed according to the leaf color when the seedlings are 15 cm high. Fertilization should be sufficient for seedbed nitrogen fertilizer, but not too much, please, potassium fertilizer and calcium, boron and other trace elements in an appropriate amount.

Keep it well lit and humid, and avoid being too dry or too wet. After entering the flower bud differentiation stage, when there are symptoms of lack of fertilizer such as light leaf color, thin leaves and thin stems, diluted urea solution and potassium dihydrogen phosphate nutrient solution can be poured. The seedling furrow covering material should be well transmitted, and it is necessary to pay attention to frequent cleaning and dusting, and the grass should be covered early and evening, so that the seedlings receive light for more than 8 hours.

Tomato flowers sometimes have a compound increase in the number of petals, calyxes, and pistils, and they are not arranged in an orderly manner, and this kind of flower is called a deformed flower in production, and this flower becomes a deformed fruit even if it sets fruit. Deformed flowers, also known as "ghost flowers", are caused by abnormal flower growth, and the main reasons for the formation are low temperature or sudden high and low during the seedling raising period, improper drying and wetting, excessive nitrogen fertilizer, and harmful gases affect the normal differentiation of flower buds.

Tomato deformed flowers with normal flowers.

<> eggplant cultivation, due to the limitations of environmental conditions and inappropriate technology, it is easy to form deformed fruits, resulting in reduced yield and harvest. Please read this article to talk about Hu Ming to understand the causes of eggplant deformed fruits, and what to do if eggplant deformed fruits occur.

1. Use hormones to treat flowers inaccurately and form stiff fruits. The best time for hormone treatment of flowers is only 3 days, that is, the day of flowering and 2 days before opening. Countermeasures:

When the eggplant flowers all turn purple to open for a total of 3 days, they can be treated with hormones, but the best treatment is on the day of opening.

2. Excessive hormone concentration is easy to form deformed fruits. Countermeasures: The concentration of hormones in the treatment of flowers is generally required, but it should be treated flexibly, that is, it is slightly lighter when the temperature is high; The temperature is slightly thicker when the temperature is low. When the outside temperature is lower than 15, the concentration is appropriate.

3. The flowers on the plants with relatively weak growth have thin peduncles and thin flowers, and even if they are treated with hormones, they will also form stiff fruits. Countermeasures: Eliminate small seedlings and stiff seedlings when planting, and select strong seedlings.

Remove the eggplant flowers, artificially prolong the growth period, increase fertilizer at the same time, promote the roots and strengthen the seedlings, and implement fruit restriction management according to the growth of the plant.

4. The flowers of the long plants with excessive vegetative growth will form deformed fruits even if they are treated with hormones. Due to excessive vegetative growth, the nutrients produced by the leaves are contested by the stems and leaves, inhibiting reproductive growth. Countermeasures:

Squatting seedlings in a timely manner, squatting seedlings in the seedling stage, properly controlling water and fertilizer, cultivating and loosening the soil, so that vegetative growth can be transferred to reproductive growth in time. Spraying brassinin also balances vegetative and reproductive growth of eggplants.

5. Treating flowers with hormones under high temperature conditions is easy to form deformed fruits. Countermeasures: The temperature exceeds 30 should stop the treatment of flowers, the flowers that open on the day must be processed when the temperature is below 30 in the morning, and the purple flowers that have not opened can continue to be processed after 4 pm if they cannot be processed before 10 am.