Seed treatment before sowing is conducive to achieving early maturing, high yield, high quality and prevention of pests and diseases. Before sowing, seed disinfection, soaking, and germination are generally required.
(1) Soaking and disinfecting: In order to promote germination and kill pathogens or viruses brought about by seeds, seed disinfection and soaking treatment are often carried out. The commonly used method is warm soup soaking, that is, first soaking with hot water at 50 ~ 55 °C for 15 minutes, the amount of hot water is about 5 times the amount of seeds, the hot water treatment to constantly stir the seeds, so that heat evenly. Then soak again for about 4 hours at room temperature. A certain high temperature is conducive to killing the germs that the seeds carry, and at the same time it can promote the early swelling of the seeds by water swelling. Soak the seeds with clean water and a container. At the same time, knead the seeds in combination with the soaking. Wash the mucus on the seed coat, rinse the seeds, and remove the impurities.
Seed disinfection can also be combined with other treatments after soaking or during soaking. If soaked cucumber seeds can be treated with potassium permanganate, seeds are soaked with 0.1% potassium permanganate for 30-60 minutes to kill germs on the surface of the seeds, washed after immersion for germination. Can also be used for disinfection of pesticides, such as 50% carbendazim wettable powder 600 times liquid soaked at room temperature for 4 hours for disinfection.
(2) Germination: The seeds that have been disinfected and soaked are put under suitable conditions of temperature and humidity to promote the rapid germination of the cucumber seeds, and then the seeds are sown. The suitable temperature for cucumber seed germination is 28-29°C, maintain a certain humidity at this temperature, about 1 to 2 days to germinate. Specific germination can be used in various ways to achieve the best germination temperature of the above cucumber. The conditional constant temperature incubator can be used for constant temperature germination. The seed after soaking is wrapped in a damp cloth and placed in a constant temperature box of 28-29°C. This method is fast and tidy, but it requires the purchase of a constant temperature box.
When the family grows a small amount of cucumber (with a seed amount of 250 g), body temperature germination can be used. Seeds soaked and so on can be wrapped in wet gauze first, then put into a plastic bag, and then put into the pocket of the underwear. Every half a day, the plastic bag is vented. This germination method is safer and does not freeze or burn the seeds.
Light bulbs can also be used for germination. Use a cylinder to hold about 10 centimeters of water in the bottom of the tank, and a 40 watt light bulb at 10 centimeters above the water. Put a dice at 10 centimeters above the bulb, cover with wet gauze, and use the seeds for germination. Wet cloth cloth put a good spread on the wet gauze, and then covered with a wet cloth, cover the cylinder mouth. Insulation material is added around the cylinder to open the cylinder lamp so that it generates heat, keeping the temperature in the cylinder at about 25°C. The water at the bottom of the cylinder is conducive to keeping the seed moisture. If an automatic temperature controller is added, the power can be turned on and off automatically according to the temperature in the cylinder to keep the temperature in the cylinder constant at a suitable temperature for germination.
(3) Low-temperature treatment and cold-resistance exercise: The seed germination after soaking is started, and the unexposed seeds of the radicles are kept at 0°C for 1 to 2 days, or at a low temperature of -1 to 2°C for 2 to 4 hours. Then put it in cold water and slowly raise the temperature to germinate. This method can improve cucumber seedlings resistance to low temperature about 2 °C.
(4) Seed dosage: 50 grams of cucumber seeds are about 2000 grains. In addition to the seedlings and seedlings in consideration of the seedling maintenance rate, generally 50 grams of seeds can obtain about 1,500 seedlings, and 1 acre of cucumbers need about 200 grams of high quality cucumber seeds. about.
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