The seed treatment method of Glycyrrhiza uralensis-- Sand Storage treatment
If the amount of seed used is large, sand storage treatment is often used. The method is to treat it about 2 months before sowing. First soak the licorice seeds in 60 ℃ warm water for 4 hours, stir them many times, fish them out and drain them, mix them with 5 times as much fine sand as the seeds, and the humidity of the river sand is that it can be seen by hand without dripping. Then put the well-mixed seeds into a wooden box, surrounded by wet sand of unmixed seeds, and then covered with 3-5cm thick wet fine river sand. Finally, put the seed box into the prepared cellar, surround it with fluvo-aquic soil, and cover the cellar with a wet grass curtain. Sand storage cellar should be chosen in high dry, leeward, shady place, the cellar can not accumulate water. The humidity should be checked frequently during storage. if it is too dry, the seed box can be taken out and mixed well with water, so that it can be re-stored when the humidity reaches an appropriate level. If the moisture is too large, it can be solved by drying. By using this method, the seeds can be sowed in 2 months, which is suitable for autumn sowing.
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Seed treatment method of Glycyrrhiza uralensis-soaking seed in warm Soup
Soak the seeds in warm water of 60 ℃ and keep stirring. When the water temperature drops, remove the seeds and soak them in clear water until they expand, remove and drain, and then sow. After soaking seeds in warm soup, the germination rate of seeds can be increased by 15% to 20%. The seeds soaked in 60 ℃ warm water for 4 hours can also be removed and placed in a warm place, covered with a wet cloth, drenched with clean water twice a day, and sown when the seeds crack.
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Botanical morphology of Glycyrrhiza uralensis
Licorice plant height 50-150 cm, root stout, cylindrical, multi-horizontal, sweet taste. The skin is reddish brown or dark brown. The stem is erect, the lower part is woody, and the whole plant is white pubescent. Odd-pinnate compound leaves alternate, leaflets 7-17 pairs, ovate-elliptic, entire, both surfaces covered with glandular scales and white hairs. Racemes axillary, calyx campanulate, Corolla butterfly, purplish red or blue-purple. The pods are densely arranged into balls, and the single fruit is sometimes curved into a sickle shape, brown, densely covered with spiny glandular hairs, with 6-8 seeds and sometimes 2 seeds.
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