Some fruit trees and flower seeds germinate slowly after sowing, and these seeds need to be treated manually before planting so as to promote early germination. The following methods are commonly used to deal with:
1. Seed Soaking: Seeds such as eucalyptus, cyclamen, and sailboat raspberry can be soaked in cold water or warm water at 40°C to 60°C before sowing. Seeds of different plant species have different soaking times. 2-24 hours, so that after germination will germinate quickly and neatly.
2. Injury seed coat method: For seeds with some seed coats that are hard, airtight, and non-absorbent, such as seeds of wisteria, lotus, canna, etc., it is necessary to grind some of the seed coats on the sickle before sowing, and then soak in warm water. For a few hours, the seeds swell and they promote rapid germination.
3. Plant ash seed dressing: The seeds of Zanthoxylum bungeanum seed coat are waxy, and it can be mixed with grass ash and water to form a paste. By the alkaline of grass ash, the wax of seed coat is removed, which will help the seeds absorb water and germinate.
4. Pharmaceutical treatment method: Use strong acid or strong alkali, among which concentrated sulfuric acid and sodium hydroxide are the most commonly used, treatment can make hard seed coat become soft. The time of treatment can be determined by the hardness of the seed coat. After treatment, the seeds must be washed with clean water before sowing.
5. Hot cracking method: Acacia planting in the spring, can put the seeds into the basin, after the pouring of water covered with a towel, the seed coat scald and then sowing, can accelerate the germination.
6. Frozen cracking method: Seeds of hardy seed coats, such as pecans and walnuts, can be sowed in cold regions before freezing in the late autumn. After sowing, they are poured with frozen water. After freezing in winter, the seed coats are frozen and cracked. The second spring can be used to germinate. .
7. Low-temperature stratification method: After the end of the fall, the seed is mixed with wet sand and buried in a 60 cm deep ditch. The upper part covers straw and presses the soil. The seed is sowed in the early spring of the second year. This method is to break the seed dormancy and promote its germination. This method is commonly used for the seeds of iris, rose, and rose.
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