How to select Chinese scholar tree seeds? What are the seedling raising methods?

The Chinese scholar tree is the only tree species among China's garden trees named with the character "guo" (national), so it naturally became the city tree of the capital, Beijing. Not only that, the Chinese scholar tree is tall and beautiful in shape, with an extremely high survival rate when transplanted in any season, and it can basically be seen in every city in China. Coupled with its good prospects and value, its planting area is even more extensive. So how should the Chinese scholar tree be planted? Let's take a look at its seed selection tips and seedling raising methods.

How to select Chinese scholar tree seeds?

Chinese scholar tree seeds are black or brown, flat oval-shaped, in pods, 5 cm to 7 cm long, with a green, fleshy seed coat. When selecting Chinese scholar tree seeds, these standards must be used as the basis for careful identification; those with a pitch-black appearance and plump grains are first-grade seeds. It is best to select seeds with a green seed coat and plump, fleshy texture for sowing, as this can effectively increase the seed germination rate. In addition, before sowing it is best to carry out a germination test, and after sowing promptly check the emergence of seedlings, so as to identify the quality of the Chinese scholar tree seeds.

What are the seedling raising methods?

1. Selection of seedling raising site

The Chinese scholar tree is not strict about soil requirements, but it is more suitable to choose a place with convenient drainage and irrigation, sandy loam or loam soil, good soil fertility, and relatively flat terrain as the seedling raising site.

2. Seed treatment

To speed up the germination rate of Chinese scholar tree seeds, the seeds need to be treated before sowing, and the soaking method can generally be used. That is, first immerse the seeds in hot water at a temperature of 80 °C, stirring constantly, and after the water temperature drops to <45°C stop stirring and let stand for 24 h. Then, after the seeds swell, take them out, cover them with a straw curtain or a cloth moistened with water beforehand, and keep them covered for 36~48 h; once about 1/5 of the seeds have germinated, they can be sown .

3. Sowing and seedling raising

The sowing time is generally chosen in spring. Before sowing, first open furrows; after sowing, cover with about 2cm of soil, and seedlings will emerge in about 1 week, with full emergence in 10~15d. If plastic film is used for covering, remove the film when the number of true leaves of the seedlings reaches 2~3, and thin the seedlings when the height of the seedlings reaches 15cm; generally 2 thinnings are enough.

4. Transplant management

The branch and bud density of Chinese scholar tree seedlings is too high, and the trunks tend to bend, so transplanting is carried out after 1 year of seedling growth, in order to increase the row spacing and the number of seedlings; the transplanting row spacing is controlled at about 45 cm×75 cm. The first year after transplanting is very critical, as it determines whether the seedlings can survive; watering should be done at the right time to ensure sufficient moisture, and so on.

Because of its "patriotic factor," the Chinese scholar tree has remained constantly popular in the market, and the annual use of large-specification Chinese scholar trees in greening projects is 5 million trees, with 1 million trees able to leave the nursery each year nationwide. It can be said that the premium Chinese scholar trees currently cultivated are greatly welcomed by the market, and of course this cannot be separated from scientific seedling management techniques.

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