How to choose the seeds of Coptis chinensis? What are the methods of raising seedlings?

Coptis chinensis, also known as Coptis chinensis, Coptis chinensis tea, etc., belongs to Coptis chinensis of Lacqueraceae. It is native to China and is an important oil and wood tree species for afforestation in arid limestone mountains. In addition, the crown of Pistacia chinensis is tall and perfect, and its leaves are slender and soft. It can also be used as an ornamental and greening tree species in the city. In recent years, due to the influence of market and seedling technology, the demand for Pistacia chinensis seedlings is increasing. So how to choose the seeds of Coptis chinensis? What are the methods of raising seedlings? Let's get to know it.

How to choose the seeds of Coptis chinensis?

The seeds of Pistacia chinensis are full, deep in color, slightly glossy, dry on the surface and free of dust. Choose regular merchants with complete three certificates to buy, and know some important parameters of seeds in product packaging, such as cleanliness (high) ≥ 90%, germination rate (high) ≥ 40% and so on. The seeds of Pistacia chinensis with high germination rate and high purity should also be selected when sowing.

What are the methods of raising seedlings?

1. Seed collection

The 20-40-year-old mother trees with strong growth and high yield are generally selected, and the ears are picked when the drupe changes from cyan to copper green from September to November. The mature and full seeds are copper green, and the red ones are mostly empty seeds damaged by Pistacia chinensis seeds wasps.

2. Seed treatment

The seeds need not be treated, and the seeds which have been dewaxed and dried are sown directly before the soil is frozen in late autumn. It germinates early in autumn and the next spring, and there is no need to keep the seeds. However, it is not suitable to sow in autumn in areas with severe drought in winter or serious damage to birds and animals.

3. Land selection and preparation

The nursery chooses sandy loam with sunny, good drainage and deep and fertile soil. 50% carbendazim 3kg and black alum 10kg were applied per 667m2 for soil disinfection, and rotten barnyard manure 4000-5000kg, nitrogen, phosphorus and potassium compound fertilizer 100kg.

4. Sowing seeds

Autumn sowing is from October to November and spring sowing is in March. The method of trenching and sowing is often used. Row spacing 30cm, sowing ditch depth 3cm, sowing width about 5cm, seeds evenly scattered in the ditch, covered with soil 2-3cm. Fill and press slightly, then cover with weeds, straw or blankets.

5. Seedling stage management

Generally, Pistacia chinensis seedlings emerge in about 25 days, and when the seedlings come out, remove the mulch such as straw felt or plastic film. The first seedling intercropping was carried out when the seedling height was 3-4cm, and when the seedling height was 15cm, the seedling was fixed by ploughing and weeding, and the plant spacing was 10-15cm. Spray 0.02% potassium dihydrogen phosphate once every 7 days, spray 3 times in a row, apply more nitrogen, phosphorus and potassium mixed fertilizer from June to July, mainly potash fertilizer after August, stop applying nitrogen fertilizer. Loosen the soil and weed in time after irrigation or rain.

The above is the introduction of seed selection and seedling raising methods of Pistacia chinensis. Now more and more people like to keep Pistacia chinensis as a bonsai at home. I believe that after learning these seed selection and seedling skills, you can also grow beautiful Pistacia chinensis.

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