Tree germination method

Seed germination is to promote seed germination, artificial regulation and control of germination of species, so the necessary external environmental conditions to meet a series of physiological and biochemical processes carried out within the seeds, increase breathing, digestion of nutrition, help germination germination and germination to achieve germination as soon as possible the goal of. Several kinds of commonly used seed germination methods: 1, seed soaking with water after soaking in fresh water, seed coat softening, water swelling, early germination, soaking water temperature and time, vary according to the species, soaking water is 2 times the seed. 2, mechanical injury method to scratch the seeds, change its permeability, increase seed permeability, permeability, so as to promote germination, often seeds and coarse sand, gravel, etc. mixed and stirred to wear the seed coat. 3, acid, alkali treatment of seeds with a hard seed shell, immersed in the corrosion of acid, alkali solution, after a short time treatment, so that the seed shell thinning, increase permeability, promote germination, soaking time varies by species. 4. Stratification and priming method The seed and wet sand are layered and buried in pits, or placed in wooden boxes or flower pots and buried in the ground. The pits are placed in the grass to facilitate ventilation. The amount of wet sand can not be less than 3 times that of seeds. Seeds can be maintained at 0°C-10°C for 1-4 months under low temperature conditions. During this period, attention should be paid to inspection. When 40%-45% of the seeds start to crack, they can be taken out.