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1.低温处理种子在低温和湿润的发芽床上,水中含有较多的氧气进入胚,促进代谢,可有效地加速发芽。对低温处理有效的种类有:葱、萝卜、菠菜、芹菜、莴苣、胡萝卜、芸苔属等。通常处理方法是将种子置于规定的湿润发芽床上,放在5～10℃低温下处理2～7天,然后移置规定温度条件下,可良好发芽。 2.加温干燥处理种子进行加温干燥处理,可促进抑制物质的分解和挥发,并改善果种皮的通透性。具体的做法是将种子置于良好的通风条件下,摊成薄层,加温干燥的温度和时间,因种类而不同。各类蔬菜种子的处理条件如下表:
1. Cryogenic treatment of seeds in the germination of low-temperature and wet bed, the water contains more oxygen into the embryo, promote metabolism, can effectively accelerate the germination. Effective types of low temperature treatment are: onions, radishes, spinach, celery, lettuce, carrots, brassica and so on. The usual method is to place the seeds in the specified wet germination bed and place them in a low temperature of 5-10 ° C for 2 to 7 days and then allow the seeds to germinate under the conditions of displacement. 2. Warming and drying seeds for heating and drying treatment can promote the decomposition and volatilization of inhibiting substances, and improve the permeability of the seed coat. The specific approach is to place the seeds under good ventilation, spread thin, warm and dry temperature and time, depending on the type. Various types of vegetable seed processing conditions in the following table: