The seeds were sunned for 1 to 8 days before sowing, soaked in cold water for 24 hours, and replaced with water every 8 hours or so. Then rub the seeds and rinse with water to remove impurities until the water is clear.

The seeds were wrapped with gauze, squeezed out of some of the water, placed in the refrigerator, the temperature maintained at about 5 °C. Rinse the seeds one at a time with water every morning and evening. After two days, dry the seeds in a bright environment. Rinse with cold water twice a day. After each flush, use a fan to blow the seed for 5 to 10 minutes to blow off excess water from the seeds to prevent oxygen deficiency from affecting germination. Generally after 5 to 6 days to germinate.

There is also a germination technique that involves squeezing and wrapping the seeds that have been soaked in the first method. Then hang it in a deep well and leave it 40 to 50 centimeters away from the water. Take it out twice a day and rinse it twice with clean water. After the water is rinsed, the surface of the seed should be dried with electric fans and then wrapped in a well. After 6 to 8 days of treatment, germination and sowing can be performed.

1, water soaking germination

Seed soaked in clean water for 24 hours, so that the seeds fully absorb water, then the seeds are rubbed and panned several times until the water is clear, the seeds are spread on a straw mat in the shade, dried slightly, and lost the excessive moisture on the surface of the seeds. After drying, the seeds are placed in pots, covered with a damp cloth, and placed in a cool, well-ventilated place to germinate. The suitable temperature for germination is 15 to 20°C. During the germination, the seeds are turned once every day to make the temperature and humidity uniform every 2 days. Wash the seeds twice with water to prevent mildew. After the panning, dry it slightly and continue germination. About 7 days or so, more than 80% of seeds can be sown when exposed.

2, soaked in water to promote germination

Put the seed in a cloth bag, soak it in water and then hang it into the well. It is about 30 centimeters from the surface of the water, so that it expands in water at low temperature and humidity. After 24 hours, play the Xuan at 15 ~ 20 °C under the conditions of germination, the temperature can not be too high, to prevent germination Senate Guanqi or cause the radicle slender. Rinse 2 to 3 times a day with fresh water. Soak 20% to 3 days of hand to expose the radicle.

3, low temperature treatment prime

The soaked seeds are refrigerated at a low temperature of 0 to 1°C for 3 days, and then germinated at a temperature of 15 to 20°C to shorten the germination time and improve the uniformity of germination. Seed soaking with 100 ppm gibberellin or 1% thiourea can be used instead of low temperature treatment to achieve the same effect.

4, Hormone

Some species of seeds have a dormancy period of 1-2 months after harvesting. If new seeds are harvested from the same year, they often have difficulty in sprouting and the budding time is long and irregular. Therefore, 5 mg/L gibberellic acid can be used, and each 20 ml of water can be added to 4 kg of soaked seeds for 12 hours so as to be sowed after sowing; or soaked for 10 to 12 hours with 1000 mg/kg of thiourea solution; seeds can also be refrigerated 30 days; also some? Treatment of seeds with 800-1600 mg/elevated gibberellic acid can shorten the germination time and increase the germination rate.

5. Warming and Germination

After the seeds are soaked, they are placed in a 15?18C incubator. After 12 hours, the temperature is raised to 22?25C. After 12 hours, the temperature is lowered to 15?18C. After about 3 days, budding can be achieved.

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