Detailed report of the germination step of vegetable seeds

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Tomatoes, peppers, eggplants, cucumbers, and other fruit and vegetable seeds germinate slowly and require germination. Now the germination technology is introduced as follows:

First, choose the seed: must be selected good seeds full, uniform size, high purity seeds, to remove the dirt impurities in the seeds, so as not to affect the germination or cause bad species.

Second, disinfection: 1, dry heat disinfection method. Mostly used in tomatoes, first drying seeds, so that the water content of 7% or less, placed in oven 70 degrees Celsius to 73 degrees Celsius baking for 4 days, after removal of germination, can prevent tomato canker disease and virus disease.

2, warm soup soaking method. Soak the seeds in hot water at 60°C for 10 to 15 minutes, stirring them while soaking. When the water temperature drops to 30°C, stop stirring, continue immersing for 3 to 4 hours, and remove the germination by drying to reduce the seedling disease.

3, liquid soaking method. Commonly used formalin 100 times, first soaked with water for 3 to 4 hours, and then soaked in liquid for 20 minutes, remove with water rinse can be primed. Cucumber seeds are soaked in water for 2 hours and liquid medicine is soaked for 30 minutes. This method can prevent tomato early blight, eggplant brown leaf disease, cucumber anthracnose, blight and so on. It is also possible to use different liquid soaks for different diseases to be controlled.

III. Soaking: Seeds must be soaked before germination. Different seed soaking seeds have different water temperatures. To give a few examples:
1, hot water hot seed method: first soak the seeds with cold water, and then use 55-65 °C hot water side of the seeds while stirring rapidly to prevent burns the seeds, until the water temperature dropped to 35 ~ 37 °C, stop stirring, and then continue to soak Time, sterilization and disinfection, this method is suitable for cucumber, eggplant, pepper and other seeds.

2, soaking in warm water: first put the seeds into the basin, and then slowly add 50 ~ 55 °C warm water, while stirring the seeds so that the uniform heating, continued 10 ~ l5 minutes, until the water temperature dropped to 30 °C when the stirring stopped, and then Continue to soak for a period of time, and there is a certain degree of sterilization and disinfection, this method is suitable for Solanaceae and cabbage and other seed processing.

3, cold water soaking: soaking seeds with l5 ~ 25C water temperature, suitable for all kinds of vegetable seeds, soaking time should be appropriate to extend some, soaking seeds when the seed does not dry heart is appropriate, soaking the containers used must be clean, soaking the seed during the process The mucus on the skin is changed and the water is changed every 12 hours to wash off the waste discharged from the seeds and meet the oxygen demand of the seeds.

4. Pregermination: Control the soaked seeds to water, wrap them with good gauze with good ventilation, and pay attention to keeping the seeds in a loose state. Do not press too tightly. During germination, if the seeds are dry, rinse with water.

The key to germination is temperature, suitable temperature and germination time: cucumber 28 ~ 30 °C, germination time 16 ~ 24 hours; tomato 28 ~ 30 °C, germination time 3 days; sweet pepper 33 ~ 35 °C, germination time 4 ~ 5 Eggplant 30 °C, germination time 4 to 5 days. At present, the method of changing the temperature and germination is advocated, that is, the temperature is reduced by 5 to 10° C. for 8 hours at night, and maintained at about 20° C. This method can increase the seed germination rate and shorten the germination time. Germination equipment is best used with an electric thermostat. After germination, the seeds appear white and can be sown. If the temperature, humidity is not suitable, can be planted when the bud grows to 2 to 3 mm. If the seeds have sprouted and cannot be sowed in time, the seeds can be stored at a temperature of about 5°C for several days, and they should be protected from freezing and drying.

1, tomato germination will be selected seeds with 20 °C -30 °C warm water for 5-12 hours to remove, washed with water after removing seed coat mucus, into a clean wet cloth bag is built in about 25 °C environment, both the seeds To maintain a certain temperature, but not too high humidity, so as not to bad species.

2, eggplant germination will be selected seeds with 60 °C -70 °C warm water soaking and stirring rapidly, until the water temperature dropped 12-16 hours after soaking out, washed with water to remove seed coat mucus, into a clean wet bag built-in dry 28 The germination was carried out at a temperature of -30C.

3, pepper germination The selected seeds will be placed in warm water about 30 °C to rinse the grains, and then soaked in warm water at 60 °C for 15 minutes, the water temperature is reduced to 35 °C, then soak for 10-12 hours, remove and wash with water Net, put in a clean wet cloth bag and germinate at 28°C-30°C.

4, celery germination will be selected seeds into the warm water at 50 °C, rubbed 2-3 times a day, rinse once for water. Until the water is clear, then soak for another 24 hours, remove and germinate in a wet cloth bag placed at 25 °C -30 °C, the temperature of 90% or more.
The general summary of the germination method is as follows:
a. Potted germination method: Wash the soaked seeds, filter out excess water, dry them into semi-dry, wrap them in a clean wet gauze, put them in a clean tile pot, and put them in a suitable temperature place. During the germination process, it should be turned up and down twice a day, and water should be added properly to make the upper and lower temperatures uniform, budding and neat. The seeds with long germination time should also be rinsed once with water every day.

b, mixed with sand germination method: the soaked seeds and washed sand by l: l ~ 2 mixed evenly, into the basin, the pot covered with a layer of wet cloth insulation, and then put into the appropriate temperature at the germination. This method is simple, easy to heat, moisture, breathable, budding and tidy, not easy to breed, easy to manage.

c. Electrothermal temperature-control and germination method: The sand-precipitating and precipitating pots are placed in an electric-thermostation precipitating chamber for germination. The temperature can be controlled by itself, the management is more convenient, the date of budding is accurate, the uniformity is high, and germination is early. During the germination process, no matter which method is adopted, the container should be kept clean, and the humidity should be suitable for seed coat and non-humidity. Uneven humidity may cause uneven budding. During germination, the temperature should be slightly lower in the initial stage and gradually increase to the seed. Germination temperature is moderate to promote germination, and when the radicles are exposed, the temperature is lowered to promote the growth of young shoots.

d. Seed soaking: According to the seedling disease occurring in different crops, targeted selection of pharmaceutical agents is required to accurately prepare the concentration of the liquid and strictly control the soaking time. Before the seeds are immersed in the liquid medicine, they are usually pre-soaked with fresh water for 4 to 6 hours. After the seeds are immersed in the liquid medicine, rinse immediately with clean water, and then sow germination. 110% trisodium phosphate soaking for 5 ~ 10 minutes, can prevent tomato diseases such as early blight. 240% formaldehyde 100 times liquid soaking l5 minutes, can prevent damping-off, spot blight, early blight and so on. 3 Potassium permanganate 100 times soaking for 30 minutes to control tomato virus disease, early blight and other diseases. 40.1% carbendazim hydrochloride plus 0.1% Pingping plus solution soaking for 1 day, can prevent melon wilt disease and other diseases.

e. Seed Dressing: Use 50% carbendazim WP to apply seed 0.2%-0.4% to prevent melon wilt and other diseases. With 50% Kedan Dan WP according to the seed amount of 0.2% -0.4% seed dressing, can control solane fruit and fruit dampness damping-off and other diseases. When dressing seed, it should be noted that the medicine should be dry, small and evenly mixed with the seed.

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