Vegetable soaking and germination operation
Published:
2023-02-18 11:09
Seed soaking and germination is one of the important links in vegetable seedling raising.
Seed soaking provides suitable greenhouse, humidity and moisture conditions for seeds to germinate. Through certain stimulation, seeds will begin to germinate and take root.
Seed soaking is to make the seeds absorb water quickly to reach the water content required for germination. As the oxygen dissolved in the water enters the cells, the enzymes in the seeds begin to activate, and the respiration is enhanced to promote the seeds to germinate faster, and at the same time kill the insects attached to the surface. Eggs and germs.
Generally, seeds with hard and thick shells are difficult to absorb water and germinate, such as bitter gourd, snake gourd, loofah and celery, etc. It is not recommended to soak the coated seeds.
Drying seeds can improve the permeability of the seed coat, thereby increasing the germination rate of the seeds, and has a certain disinfection and sterilization effect. When drying the seeds, place mats, white cloths, etc. for drying. During the drying process, you should frequently turn over the seeds to heat the seeds evenly. The drying time is 2 to 3 hours. It should be noted that the seeds cannot be placed directly on the cement or metal surface to prevent the seeds from being scalded by excessive temperature.
After sun-drying, place the seeds in a clean small pot or large bowl, pour in 50-55 ℃ warm water and keep stirring, stop stirring when the water temperature drops to 30 ℃, and soak for 8-12 hours to allow the seeds to absorb enough moisture.
The seeds must be soaked in water for 1 to 4 hours before soaking the seeds with the chemical, and then put into the prepared chemical solution. The seeds can be covered with a mesh bag and immersed in the liquid for disinfection. After reaching the specified time, they can be removed immediately and rinsed with clean water.
After soaking the seeds, germination is carried out, the seeds are removed and drained, wrapped with a towel or gauze, and placed in a suitable temperature environment for germination. The temperature is determined according to different seeds.
During the germination process, ensure that it is moist, and sow the seeds in time when the radicle length of most of the seeds is about 3 mm. If the radicle length is too long, it is easy to break.
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