What is the growth process of sunflowers?

The growth process of sunflowers is described as follows:1. Seed stage: Sunflower seeds mature in August and September.

2. Seedling stage: sunflower seedlings emerge to the seedling stage, at this stage the leaves are formed and the flower buds are differentiated.

3. Present storage period: When a star with a diameter of 1 cm grows on the top of the sunflower, it enters the budding stage.

4. Flowering period: The flowering period refers to the opening of 75% of the tongue-like flowers of sunflowers.

5. Maturity period: sunflower flowering to maturity into the maturity period.

6. Withered ling: sunflowers will wither in the later stage.

Sowing, germinating, growing, dying.

Sunflower growth process diagram from the seed, flower blooming, flower withering process The rhythm of life.

It's it, it's not that she's using it wrong.

1. Seedling stage.

From the emergence of seedlings to the emergence of buds, it is called the seedling stage. It generally takes 35-50 days, and 28-35 days for summer sowing. This period is the stage of leaf and flower primordium formation and floret differentiation.

At this stage, the growth of the aboveground part is stunted, and the root system of the underground part grows rapidly, and a strong root system is formed soon, which is the stage with the strongest drought resistance of sunflower.

2. The budding period.

A stellate body with a diameter of 1 cm appears on the top of the sunflower, commonly known as the bud. It generally takes about 20 days from budding to flowering, which is the period of vegetative growth and reproductive growth, and it is also the most vigorous stage in life. During this period, sunflowers need the most fertilizer and water, accounting for about 40 50% of the total fertilizer and water requirements.

If the demand for water and fertilizer cannot be met in time during this period, the yield will be seriously affected.

3. Flowering period.

In the field, 75% of the plants have tongue-shaped flowers open, that is, they enter the flowering stage. It usually takes 6 to 9 days for a flower disc to open from the tongue to the tubular flower. From the second day to the fifth day is the peak flowering period of this inflorescence.

The number of flowers blooming on these 4 days accounts for about 75% of the number of flowers. The flowers mostly bloom at 4-6 o'clock in the morning, and are pollinated and fertilized the next morning. Unfertilized shoots can remain for 7-10 days without withering.

4. Maturity period.

From flowering to maturity, spring sowing 25 to 55 days, summer sowing 25 to 40 days. There are differences between different breeds. About 15 days after flowering and pollinating shield is the stage of seed formation. This period requires clear weather, a large temperature difference between day and night, and suitable soil moisture.

The growth process of sunflower is the seedling stage, budding stage, flowering stage, and maturity stage.

1. Seedling stage.

Sunflower seeds are sown in the spring and wait for a few days for the sunflowers to sprout, from the beginning of germination until the sunflower sprouts buds. The seedling stage lasts about 30-50 days, during which the sunflower grows, the rhizome grows taller, and the leaves change from 1-2 leaves to multiple leaves, in addition to the root system of the sunflower also grows vigorously underground.

2. The budding period.

After the seedling stage, when the top of the sunflower grows a star until the sunflower blooms, it belongs to the budding period of the sunflower, this period lasts about 20 days, during this period, the sunflower will work hard to absorb nutrients, grow more vigorously, and its flowers and leaves will always be in a state of growth.

3. Flowering period.

During the flowering period, three-quarters or more of the sunflower's flowers begin to bloom, and the flowering period is considered to be the flowering period when the flowers are fully opened, which lasts about 6-9 days, but it should be noted that the flowering period will be shortened if pollinated.

4. Maturity period.

The period from the flowering of the sunflower to the full maturity of the sunflower seeds belongs to the maturity period of the sunflower, which will last about 25-55 days, and then pollinate the sunflower, and in the case of the right amount of watering, temperature and light, after about 1 month, the sunflower seeds will be fully mature.

The growth and change process of sunflower is mainly divided into these four parts, seedling stage, budding stage, flowering stage and maturity stage. Seedling stage: At this time, the roots grow relatively fast and form a strong root system; Current budding period:

Flower buds with a diameter of one centimeter appear at the top of the sunflower; Flowering period: Flowers usually open between 4 and 6 a.m.; Maturity: Flowers will form grains after 15 days after pollination.

Sow seeds and take root and sprout, long leaves bloom, and fruits wither.

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