Is tomato a tuber fruit? What does the shape of a tomato leaf look like?

Tomato is the most susceptible species of nightshade vegetables to the formation of deformed fruits due to environmental influences.

Tomato fruit development into a neat fruit or into a deformed fruit, depending on the quality of tomato flower buds, seedlings in the low temperature, sufficient water, nitrogen fertilizer conditions, flower buds are easy to over-differentiate, the formation of multi-carpel deformed flowers, the future fruit will inevitably become peach-shaped, flat, nodule, finger-shaped and other strange shapes, there is no complete exocarp.

If the seedling age is too long, and long-term in the conditions of low temperature, drought and less fertilizer, the flower is easy to be corked, once the conditions are suitable, the tissue of the cork can not catch up with the rapid growth of the internal tissue, which leads to the cracking of the fruit, the formation of cracked fruit, scar fruit, dew seed fruit, the exocarp of this kind of deformed fruit is missing part or most of it, so in the process of flower bud formation, the low temperature time experienced is longer, and the deformed flowers formed are more, on the contrary, it is less. The reasons for the formation of tomato deformed fruits can be summarized in seven points:

1. At the seedling stage of tomato or the flower bud differentiation stage after planting, if the temperature control is unreasonable, the low temperature will continue: it will be lower than 8 degrees at night. Below 20 degrees during the day. After a week, it will differentiate into a flower with a split pistil column, and after fertilization, the fruit produced by such a flower is an umbilical fissure.

Second, during the differentiation of flower buds, continuous low temperature, the stamens can not be separated from the ovary during flowering, there are one or two stamens leaning on the ovary, such a flower is fertilized to make fruit, with the expansion of the fruit, the stamens will be embedded in the fruit, with the continuous expansion of the fruit, it is easy to form longitudinal split fruit.

3. In tomato production, once the lack of boron will affect the growth and tillering of the fruit, resulting in the reduction of pectin content, so that the toughness of the peel will be reduced, and in the process of rapid expansion of the fruit, longitudinal cracks will appear on the surface, forming longitudinal cracks.

Fourth, in the planting process, if the calcium element is insufficient, the cell wall of the tomato fruit will become thinner, the adhesion between the cells will become smaller, and during the fruit expansion period, the fruit skin will often appear annular cracks or longitudinal cracks, becoming cracked fruits.

5. Drastic changes in soil moisture content can also lead to cracking of tomato fruits. In the early stage of fruit expansion, if the soil lacks water, it is easy to lead to the aging of the peel, in the later stage of fruit expansion, take the method of fertilizing and water to promote the development of the fruit, the flesh expands rapidly, the growth and development rate of the aging peel can not adapt to the growth rate of the pulp, and the pulp will break the peel to form a longitudinal split fruit or a ring fruit.

6. During the fruit veraison period, the fruit is suddenly watered after being exposed to strong sunlight, or the soil moisture content is too large, and the weather suddenly clears up, which is also easy to produce longitudinal or ring cracked fruit.

7. Improper use of growth regulators, that is, excessive concentration of anthers during the flowering period will inevitably lead to deformed fruits.

Therefore, to prevent tomato deformed fruits, we should grasp the time of seedling raising; temperature and moisture management at seedling stage; Nutrition, fertilizer and water management during fruit expansion period; The rational application of anthers, etc., will affect the quality of the fruit.

It should be knocked into obsolescence.

According to the shape of tomato leaves, it can be divided into three types:

1. Mosaic leaf type: the size of each lobe on the leaf axis is significantly different, the distance is also large, the leaf margin is deep and the leaf is large and long, and most cultivars belong to this type.

2. Potato leaf type: potato leaf shape, also known as potato leaf, the leaf is large and long, and the lobes are larger than the mosaic leaf type, but the lobes are few, the size difference between the lobes is not as significant as the mosaic leaf type, and the leaf margin is smooth without missing entices.

3. Shrinkage leaf type: the blade width is short, the leaf margin is slightly rolled, and the lobes on the leaf shaft are compact and small. Generally, most of the upright varieties with shrunken leaves and dark green leaves belong to this type.

The number of leaves between the ears of tomato is generally 1 2 pieces for early-maturing varieties, 2 3 pieces for medium-ripening varieties and 3 4 pieces for late-maturing varieties.

(1) After a flower opens, it needs to go through pollination and fertilization to form fruits and seeds, pollination refers to the process of pollen from the stamens to the stigma of the pistil, as shown in the figure from the physiological process is pollination

2) In order for angiosperms to produce fruits and seeds, they must go through four processes: flowering, pollination, fertilization, and fruiting

So the answer is: 1) pollination;

2) Ovary.

It is the vegetative tissue, not the vegetative organ.

The shape of the true leaves of dwarf tomatoes resembles neem leaves.

Tomato cultivation techniques

Plot selection. You should choose deep soil, good drainage and irrigation, good ventilation and ventilation, and do not plant nightshade vegetables within 2 to 3 years, and do not choose areas without irrigation facilities for cultivation.

Breed selection. Choose varieties that are disease-resistant, high-quality, high-yield, resistant to storage and transportation, have good commerciality, and are suitable for market demand, such as Jintiewang.

Sowing seeds and raising seedlings. Sowing time in early March to early April is appropriate, according to the actual local situation reasonable arrangement of sowing time, the use of fertilizer ball way to carry out plastic film and small arch shed seedlings, and with the well-rotted farmhouse fertilizer mixed soil evenly pinched into a fertilizer ball of about 5 cm, and put a seed, evenly arranged with nutrient soil covering, at the same time apply a dilute water, covered with plastic film. Finally, it was covered with a small arch that was 8 meters wide and 8 meters long.

When there are 3** leaves growing, it is necessary to remove the film in time to ventilate and cool down, train the seedlings, and then plant them after a week.

Colonization management. Soil preparation and application of base fertilizer: 15 to 20 days before planting, apply 7 to 8 square meters of well-rotted high-quality circle fertilizer per mu, or 5 to 6 square meters of livestock and poultry will be stacked and fermented with the same amount of crop straw and then applied 100 to 150 kg of rotted cake fertilizer, using east-west high ridges.

If the greenhouse is cultivated 20 days before planting, the greenhouse is covered with film, and after the film is buckled, the bottom water is filled with ditching to irrigate the soil.

Planting method and density: plant spacing is kept at 50 to 60 cm, row spacing is kept at meters to meters, and 2000 tomato seedlings per mu are planted. At the same time, it is better to plant after 4 p.m. on a sunny day or on a cloudy day, and after planting, it is necessary to water the planting water thoroughly in time, and then water the seedlings once after 3 to 5 days.

Field management. Erection and pruning: when the tomato plant is about 30 cm high, it should be tied to the vine in time, and the "human" herringbone bracket is mostly used to erect the scaffold, and after the bracket is laid, the tomato trunk is fixed on the bracket with a plastic rope in the shape of an inverted figure 8, and a single stalk is used for pruning, each plant retains 5 to 6 spikes of flower spikes, and each spike retains 4 to 5 fruits.

In particular, it is necessary to remove the excess side branches in time and remove deformed fruits, diseased fruits, and excess fruits. In the later stage of growth, the old leaves and diseased leaves of the lower part should be removed in time to reduce nutrient consumption and disease propagation, and enhance the ventilation and light transmittance of the stove bridge.

Cultivating weeding and cultivating soil: After the tomato seedlings are slowed down, it can be cultivated and weededed, and the cultivation must be shallow without hurting the roots, and at the same time, remember that the tomato should be cultivated 2 to 3 times during the entire growth period.

Fertilizer and water management. Drip irrigation or dark irrigation should be used for watering, and the seedlings should be watered in time after planting, and the seedlings should be watered slowly after 3 to 5 days. The relative soil humidity is maintained at 60% to 70% in spring and 75% to 85% in summer and autumn.

Top dressing in time according to the length of the growing season and growth conditions. After deducting the basal fertilizer part, it is applied with water several times. It is worth noting that it is necessary to resolutely put an end to the use of organic fertilizers that have not been harmlessly treated, and it is advisable to use oil cakes and various biological fertilizers.

Summary. This fruit is known as a "tomato heart" or "tomato tree heart".

This fruit is known as a "tomato heart" or "tomato tree heart".

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This plant with heart-shaped fruits on the bridge tree is called "tomato tree", also called "tomato vine", and belongs to the Solanaceae family. This plant generally grows in the heat-sensitive impulse zone of South and Central America. The fruit of the tomato tree is similar to that of tomatoes, but they have a slightly different texture and taste, and the fruit is sweeter than tomatoes.

Tomato trees are not common in the market due to their harsh growing conditions and difficult preservation, but they are a local delicacy.

Ashwagandha, ashwagandha, Solanaceae. Shrub. The stems have bark spines. The leaves are alternate, pinnate and shallowly lobed.