Here is a detailed introduction
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Propagate from seeds.
(1) Seed collection Selecting good seeds is the basis for growing anise seedlings. Choose a prime-age mother tree that is 20-25 years old, with strong growth, oval crown, dense branches and leaves, soft and slightly drooping new shoots, extending horizontally, strong fruit, large and plump fruit, high oil content, and fruiting twice a year. Trees that are free of diseases and insect pests are used as seeds. Autumn anise fruits with mature "big fruits" should be selected from September to October, and they will mature uniformly. Do not harvest them too early, as the seeds are not fully developed and are susceptible to insect damage when raising seedlings. They are easy to rot due to excessive moisture and are not easy to store. Seeds that mature too late will not develop fully due to insufficient nutrition of the mother tree and the cooler climate, so the fruits should be mature in large quantities. Harvest when not cracked. The peel changes from green to yellowish brown with spots. The seeds are fully mature and have the strongest germination ability. They have less water and are easy to store. Harvesting method: Carry a bamboo basket on your back, take a wooden hook about 100cm long, climb up the tree, hook the fruit branches, pick the ripe fruits and put them in the basket. One person can pick 25-60kg a day. Because the fruits mature inconsistently, it is forbidden to beat the fruit branches with bamboo poles or shake them, otherwise the young fruits and flowers will be shaken off.
(2) Seed treatment After the seeds are collected, it is key to obtain seeds with a germination rate. Improper seed handling methods will reduce seed germination rate. Because the seed skin is thin, the volatile oil is easy to evaporate. When the oil in the seed evaporates, the seed loses its ability to germinate. Therefore, the seeds should not be exposed to the sun after being collected. In the old anise-producing areas of Debao and Fangcheng counties in Guangxi, drug farmers use a special small hook knife or scissors to insert into the pod joint of the anise fruit to pry open the pods to take out seeds. The threshed seeds should be quickly placed in a basin of clean water to prevent the oil within the seeds from evaporating and stored immediately. Be careful not to damage the seed coat when taking the seeds, otherwise the germination rate will be affected. There are about 160 fresh fruits per kilogram. The fruits of mature trees are fatter, with 80-90 fruits per kilogram. The fruits of old trees are thin and small, with about 750 fruits per kilogram. For 100kg of fresh fruit, 18-24kg of seeds are peeled off. There are about 900 seeds per kilogram, and the weight of 1,000 seeds is about 11g; 1kg of thin seeds can reach 16,000. Thousand-grain weight is 62g.
① Moisture treatment method: harvest and grow seedlings at any time. Take the semi-dry yellow clay soil and sieve it finely. Make a hole in the middle of the room, put the seeds in, mix a small amount of water while placing it, and stir the seeds and loess into particles. shape, place it next to a water tank without sunlight and wind, turn it once every 2-3 days, sprinkle water appropriately when dry, keep it moist, and hold the soil with your hands until it forms a ball. The oil in moist seeds is less volatile and maintains the ability to germinate. It can germinate in 2 months. Take it out and sow it. The seedlings will emerge after a week, with a germination rate of 80%.
② Drying process 4-5 times dry yellow soil and star anise seeds, mix well, compact the seeds and soil to simulate seed respiration and reduce oil volatilization, place it in a dry hole indoors, and cover it with fine seeds. Soil, board sealing, rodent-proof and breathable. For long-distance transportation, package and seal in wooden boxes. Put the mixed seeds in a cloth bag, compact them tightly, and put them in a box to prevent the seeds from being separated from the soil due to transportation vibration. This method does not mess up the seeds, and is kept properly. Sprinkle water before sowing so that the seeds get the right amount of moisture. They will germinate 0.5-1 month after sowing, and the germination rate is 70%.
③Transportation with fruits After harvesting, the seeds should be transported in shells. After picking, the fruits should be dried indoors for 2-3 days. Before cracking, the semi-dried fruits should be placed in bamboo baskets, covered with lids, and then transported. This kind of packaging can ventilate, the star anise will not generate heat, and the seeds will not reduce the germination ability in the peel for 5-6 days. After arriving at the destination, they can be dried in the shade, manually threshed, and stored in a moist treatment method.
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See for yourself