In this article you will know How long do tomatoes take to grow? Extraly:
How many stages are there in the tomato growing season?
What are the characteristics of tomatoes in each growth period?
What do you need to pay attention to during each growth period of tomatoes?
How long do tomatoes take to grow?Tomato germination period
The germination period is from seed germination to the appearance of the first true leaf, which is 6-9 days under normal temperature conditions.
The germination of tomato seeds is related to temperature, humidity, aeration conditions and the thickness of the covering soil. The suitable temperature for seed germination is 25-30°C, and sufficient moisture is required.
The water absorption process is divided into two stages. The first stage has a fast water absorption rate, and the water absorption can reach 60%-65% of the dry weight of the seed in 2 hours; Soaking time for tomatoes is 6-8 hours. After the seeds absorb enough water, they can germinate and take root in 36 hours, and cotyledons will appear in 2-3 days.
The suitable temperature for tomato seed germination is 25℃~30℃, and the lowest temperature is 12℃. It should be noted that plastic bags (not air-tight) should not be used to pack the seeds when tomato seeds are germinated, but white cotton towels should be used instead.
How long do tomatoes take to grow?Second, the tomato seedling stage
The seedling stage is from the appearance of the first true leaf to the appearance of buds. The seedling stage is the basis for differentiation and establishment of roots, stems, leaves and flowers.
Tomato seedlings go through two different developmental stages. Before 3 true leaves appear, it takes about 25-30 days.
During this period, the root system grows quickly, which is the first stage; then it enters the second stage, where the growth point differentiates into thick and uplifting flower buds.
Flower bud differentiation marks the transition from vegetative growth to reproductive growth. Flower bud differentiation is continuous, and one flower is differentiated every 2 to 3 days, and the second and third inflorescences are differentiated in sequence from the first inflorescence below the side.
At the same time, new growth points are differentiated below the side of the inflorescence, usually after 3 leaves are differentiated, new inflorescences are differentiated, and this is repeated. An inflorescence is differentiated every 10 days or so.
About 30 days after the flower buds differentiate, the flower organs develop and bloom. The differentiation of tomato 1~4 spikes was carried out in the seedling stage. The growth of seedlings directly affects the time of flower bud differentiation and the quantity and quality of flower bud differentiation.
Therefore, the cultivation of strong seedlings is very important in cultivation.
Suitable temperature for tomato seedling period: 20℃~25℃ during the day and 12℃~15℃ at night. Tomato seedlings are highly adaptable to temperature. In early spring production, it is best to exercise the seedlings at low temperature under certain conditions one week before planting to adapt to the environment after planting as soon as possible and promote slower seedlings.
How long do tomatoes take to grow?Three, tomato flowering and fruit-bearing period
From the first inflorescence bud to fruit setting. This period includes flowering, pollination, and fertilization until the ovary begins to expand.
This stage is a transitional period from the transition from vegetative growth to the parallel development of reproductive growth and vegetative growth.
It is directly related to the formation of product organs and the composition of yield. Therefore, in cultivation management, it is necessary to regulate vegetative growth and reproductive growth. The relationship between.
Suitable temperature for tomato flowering period: 20℃~30℃ during the day, 15℃~20℃ at night, and the temperature is lower than 15℃ or higher than 35℃, which will cause malformations of floral development. After flowering, normal pollination and fertilization will not be possible, and the flowers and fruits will fall easily.
How long do tomatoes take to grow?Fourth, the tomato fruiting period
From the first inflorescence fruit setting to the end of harvest. Three to four days after pollination of tomatoes, the ovary begins to swell and grows fastest in 7 to 20 days.
The fruit swells to the limit in about 30 days. Later, the swelling speed slows down, and it starts to color and reach maturity in 40 to 50 days.
During this period, the seedlings grow at the same time.
In order to ensure that the seedlings grow stronger and prevent premature aging or the upper fruit from becoming smaller, in addition to strengthening water and fertilizer management, pruning and branching are required to maintain a balance between vegetative growth and reproductive growth to achieve high yields.
Suitable temperature for tomato fruiting period: 24°C~27°C during the day and 12°C~15°C at night. The higher temperature difference between day and night is conducive to the expansion of the fruit.