Video of the whole process of traditional wheat planting

Answer 1. Growth process: the whole life of wheat can be divided into seedling stage, trilobal stage, tillering stage, jointing stage, booting stage, heading stage, flowering stage, filling stage and mature stage. 2. Maturity time of wheat: Spring wheat, the sowing time is generally from late March to early April each year, and the mature harvest time is in the middle and late July of that year. For winter wheat, the sowing time is generally from the middle and late September to1early October 10, and the harvesting time is from the end of May to the middle and late June of the following year.

First, the growth process of wheat

Wheat life can be divided into seedling stage, three-leaf stage, tillering stage, jointing stage, booting stage, heading stage, flowering stage, filling stage and mature stage.

1. emergence stage: the first true leaf of 50% seedlings in the field is exposed from the coleoptile for more than 2 cm.

2. Trifoliate stage: The third leaf is exposed from the sheath of the second leaf, and the leaf length is about half that of the second leaf.

3. Tillering stage: The first tiller of 50% plants in the field is about 65438±0.5cm above the leaf sheath.

4. jointing stage: the first node of the main stem of 50% plants in the field is about 1.5-2cm from the ground, and the main sign of jointing stage is that the node grows out of the ground about 2cm.

5. Heading date: More than 50% of the plants in the field are exposed to the leaf sheath at the top of the wheat ear (excluding awn).

6. Booting stage: The flag leaves of 50% plants spread out in the field, and the distance between the flag leaves and the ear of the second leaf is 2-4cm, and the young ear supported by the flag leaf sheath is obviously enlarged.

7. Flowering period: The ears of wheat in 50% plants in the field begin to blossom (usually about 3-6 days after heading).

8. Filling stage: the stage of wheat grain formation, which is also the fastest time to store dry matter in the grain. During this period, starch produced by photosynthesis of wheat stems and leaves and transformed protein are stored in wheat grains through assimilation, which can be divided into milk ripening stage and dough stage.

9. Maturity: Maturity can be divided into wax maturity and complete maturity. At the wax ripening stage, the water content of grain decreased from 38-40% to 22%, the color changed from yellow-green to yellow, the endosperm changed from gluten to waxy, the stem and leaf dried, and the internodes below the ear turned golden yellow. At the mature stage, the water content of the grain dropped below 20%, the volume decreased, and the grain became hard.

Second, when will the wheat mature?

1. If it is spring wheat, it is usually sown from late March to early April every year and harvested in the middle and late July of that year. If it is winter wheat, it is usually sown from the middle and late September to 10 in early October, and harvested from the end of May to the middle and late June of the following year.

2. The northern winter wheat planting areas are mainly located in the north of Huaihe River in Qinling Mountains and south of the Great Wall, including Henan, Hebei, Shandong, Shanxi, Shaanxi and other provinces. The southern winter wheat planting area is mainly located in the south of Huaihe River in Qinling Mountains, including Jiangsu, Sichuan, Hubei, Anhui and other provinces. The planting area of spring wheat is mainly located in the north of the Great Wall. Including Heilongjiang, Xinjiang, Gansu, Inner Mongolia and other provinces.