MySheen

Treatment methods of licorice seeds

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, 1. Sulfuric acid treatment. Stir the pure seeds with 20-30 milliliters of 80% sulfuric acid per kilogram. See that the seed coat has uniform marks of sulfuric acid etching, then rinse with clean water and dry for use. The time of seed treatment is related to the temperature and the amount of acid added. In the case of the same amount of acid, the treatment time is short when the air temperature is high, and the treatment time is long when the air temperature is low. If more acid is added, the treatment time will be short, otherwise the treatment time will be long. Second, the method of crushing the seed coat. Put the seed on the grinding plate, 3 cm thick, turn with the mill, and when the seed coat is crushed, it will be yellow and white.

1. Sulfuric acid treatment. Stir the pure seeds with 20-30 milliliters of 80% sulfuric acid per kilogram. See that the seed coat has uniform marks of sulfuric acid etching, then rinse with clean water and dry for use. The time of seed treatment is related to the temperature and the amount of acid added. In the case of the same amount of acid, the treatment time is short when the air temperature is high, and the treatment time is long when the air temperature is low. If more acid is added, the treatment time will be short, otherwise the treatment time will be long.

Second, the method of crushing the seed coat. Put the seeds on a grinding plate, 3 cm thick, turn with the grinder, when the seed coat is yellow and white, then soak the crushed seeds in warm water of 40 ℃ for 2-4 hours, remove them and rinse off the mucus with clean water to sow.

Third, wet sand burial method: first soak the seeds in 70 ℃ of warm water for 8-10 hours, then bury them in wet sand, cover them with a wet cloth or straw curtain, sprinkle water frequently, and keep moist. When the temperature rises to 18-20 ℃, take out and sow seeds. This method should be carried out 50-60 days in advance.

Heating and re-immersion method

Fourth, soak the seeds in 60 ℃ of warm water for 6 hours for 8 hours, when most of the seeds are full of water absorption (accounting for 2), and the unsoaked seeds (unsoaked hard seeds) are separated into two layers, the unsoaked seeds are under, the soaked seeds are on the top, but do not float on the surface, and the soaked seeds can be bleached out while pouring water, repeated several times, until all the soaked seeds are bleached out for use. Soak the unopened seeds in 100 ℃ boiling water for 2 seconds, remove them, immediately put them into cold water to stimulate the seed coat, and then soak the seed coat in 60 ℃ warm water for 2 hours. At this time, the seeds have been treated, together with the bleached seeds, rinse off the mucus with clean water, and then sow the seeds. The germination rate of licorice seeds treated by heating and re-soaking method reached 91.3%, and the seedling emergence rate reached 90%.

 
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