Camellia is one of China's ten traditional famous flowers. It has a warm and comfortable environment. The optimum temperature for growth is 18-25 degrees. It enjoys the conditions of semi-shadow, high air humidity and deep summer, fertile, loose, well-drained soil. In the growth, avoid the sun, avoid drying. In Jiangsu and Zhejiang provinces, about the middle of June is the best time for the propagation of camellia. When cutting camellia, generally follow the steps below. 1. Preparation of cutting substrates The cutting substrates are required to have the characteristics of heat preservation, moisturizing, loose air permeability, etc. Generally, sandy soil or soil containing humus-rich soil can be used as a cutting substrate. When the conditions are not allowed or large-scale propagation, no impurities may be used. , muddy top grade loess. About one week before the cutting, the cutting substrate should be exposed to the sun or disinfected with potassium permanganate solution. Wait until the 1-2 days before the cutting, then wet the cutting substrate with water. 2. Spike cutting and cutting cutting As cuttings, young branches are easier to root than old branches. Semi-woody shoots are easier to root than old branches that are completely lignified. Therefore, they should be of good quality, stable in character, robust in growth, free of pests and diseases. For the young Camellia squarrosa var. pubescens, the mature and well-developed semi-lignified twigs were selected as the cuttings, and the 8-10 cm long cuttings were cut to retain the top 2 leaves, and the remaining leaves were cut from the base of the petioles. Go to the top of the cuttings, cut about 0.5-1 cm away from the bud, and cut the lower end near the internode. 3, cutting and cutting should follow the principle of mining with the plug, will be a good cutting 1/3 of the cuttings inserted into the wet matrix (usually about 3 centimeters, the depth of the arid regions can be inserted into some). In order to avoid breakage of the base skin of the cuttings, first use a small wooden stick slightly thicker than the branches and then insert the cuttings, and then gently compact the soil with your fingers so that the soil is in close contact with the cuttings. The cutting density should be slightly overlapped with the leaves. 4. Post-insertion management The four factors that affect cuttings rooting are humidity, temperature, air, and light. Immediately after cutting, the seedbed should be poured once with water, and a bow shed should be set up. Plastic film should be covered to keep the air humidity at about 95% and the temperature should be controlled between 18-27 degrees. Initially, the seedbed should be shaded, and the degree of shade should be a bit larger. In case of high temperature weather, the temperature can be reduced by spraying on the leaves or spraying in the air. After 15-20 days, the healed tissue began to develop. At this time, the amount of watering can be gradually reduced, and the humidity is maintained at about 85%. Rooting occurs around 20 days after the healed tissue is produced, after which the amount of watering can be further reduced to keep the soil moist. In the case of avoiding direct light, gradually increase the light time, so that the seedlings for photosynthesis, at the same time can also properly open the film two, let it ventilated and breathable. After the seedlings are completely rooted, they can be transplanted to the open soil with soil. In order to improve the survival rate of transplants, it is generally transplanted in the spring of the second year. After transplanting seedlings to survive, a thin layer of human excrement may be applied to promote its growth.
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