There are two methods of tissue culture and cutting in Photinia frugiperda. Organizational training requires higher costs and facilities for facilities and expertise, and is not suitable for most nurseries and growers. After many years of research, Zhejiang Senxi Seed Industry Co., Ltd. has solved the technical difficulties of cutting propagation and successfully developed a cutting propagation technology that is low in cost, simple in operation, and high in survival rate and can be produced in ordinary plastic greenhouses. 1. Cutting facilities and seedbeds are prepared using monolithic greenhouse cuttings, which are to be covered with greenhouse membranes and shaded nets. A ground cutting seedbed was established after the ground was leveled in the shed. The seedbed width is about 100 cm, and a baffle with a height of 10 to 12 cm is installed around. The bottom of the seedbed is covered with a layer of fine sand for drainage. The cutting matrix can be made of vermiculite and peat, or a clean yellow heartland with fine sand. Seedbeds and substrates should be sterilized with fungicides and insecticides to prevent pests and diseases. 2. The cutting time was inserted in spring in early March, summer in early June, and autumn in early September. 3. The cuttings were cut using semi-woody twigs or lignified current year shoots, cut into one leaf and one bud, about 3 to 4 cm in length, and the incision smoothed. 4. Cuttings After the cuttings are cut, care should be taken to moisturize them. Prior to cutting, the incision was treated with a rooting agent to speed up rooting and improve survival. The cutting depth is 3 cm, and the density is 400 per square meter. Immediately after plugging in, water was irrigated and the leaves were sprayed with carbendazim and anthrax mixed solution. 5. Post-insertion management Cuttings should always check the seedbed, the matrix moisture content maintained at about 60%, the air humidity in the shed is best kept above 95%, the temperature inside the shed is controlled below 38°C, if the temperature is too high, the spray should be used to reduce the temperature. Shade from the cuttings until they germinate. After 15 days, some of the cuttings began to grow roots, and the moisture content of the substrate should be appropriately reduced, generally about 40%. When more than 50% of the cuttings begin to root, membrane ventilation can be gradually opened and the shading transmittance is about 50%. When the roots of the cuttings are all rooted and more than 50% of the leaves are turned, the shading nets and films of the greenhouse are gradually removed and the seedlings are started. Can be combined with spraying foliar fertilizer or applying low-concentration water-soluble fertilizers to promote the healthy growth of cutting seedlings. China Agricultural Network Editor
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