The seedling cultivation methods of Kyoho grapes mainly include three methods: sowing grafting, cutting, and pressing. The following is a detailed introduction to seedling cultivation methods: 1. Sowing and grafting
1. Collect seeds: After the grapes mature in autumn, collect grape seeds, remove the seed coat juice with clean water, and then store them in the shade.
2. Low temperature treatment: Two months before sowing, mix and stir the seeds with river sand, maintain a low temperature environment of -3 ℃ to 5 ℃, and keep the sand moist. After about 60 days, the seeds will be fully ripe.
3. Sowing: In early spring from March to April, plant the processed seeds directly into the soil.
4. Grafting: After one year of growth, the seedlings can be used as grafting rootstocks. In the spring months of March and April, before the plants germinate, select robust branches from the already fruiting stage of the Kyoho grape plants as scions for grafting. The grafted new seedlings can maintain the excellent quality of Kyoho grapes and prevent premature aging of the plants. 2、 Cutting cuttings
Cutting is the main seedling cultivation method for Kyoho grapes, which can be divided into hard branch cutting and green branch cutting.
1. Hard branch cutting - suitable time: late March to mid to late April in early spring- Preparation for cutting: In late autumn and early winter, combined with pruning, cut one year old fully mature, full bud eyes, and pest free branches from a robust grapevine. Leave 2-3 bud holes in each section of the cuttings, and cut off the secondary shoots and tendrils- Storage: Tie the cuttings into bundles and store them in a shaded and ventilated place with wet sand, at a temperature not exceeding 5 ℃- Cutting: After spring, insert the cuttings into the prepared nursery, keep the soil moist, pay attention to fertilizer and water management, and prevent pests and diseases.
2. Green branch cutting - time: June and July- Preparation of cuttings and cuttings: Similar to hardwood cuttings, but cuttings should be selected from semi woody branches that grow in the same year. After cuttings, special attention should be paid to shading and moisture retention. 3、 Pressure strip
Strip propagation is the main method for making grape bonsai.
1. Choose branches: Select the robust fruit branches of the Kyoho grape.
2. Pressing operation: Insert the fruit branches into the flowerpot, wait for them to bloom and bear fruit, gradually peel off the bark outside the bottom of the flowerpot, and the depth should be cut to the xylem. At the beginning, two-thirds of the bark is retained, and one-third is retained after the fruit expands. After the fruit is fully ripe, it is cut off and separated from the mother plant for bonsai viewing. matters needing attention
-During the seedling cultivation process, attention should be paid to reasonable fertilization, regular pruning, and prevention and control of pests and diseases to ensure the robust growth of seedlings.
-It is crucial to maintain soil moisture and suitable temperature during cuttings and cuttings propagation.
-Suitable rootstocks and scions should be selected during grafting to ensure the success rate of grafting.
Through the above methods, high-quality Jufeng grape seedlings can be effectively cultivated, laying a solid foundation for subsequent planting and production.