Rose breeding time and methods
Today's focus is to introduce the rose breeding time and methods, as well as the commonly used breeding methods of roses, sharing knowledge about flowers. Let's follow the editor to see the specific content!
(1) Rose breeding methods
① Seed propagation. Seed propagation is used when cultivating new varieties. Collect seeds in autumn and place them in a plastic mesh bag filled with moist sand, then store in a 4℃ environment. After 40~60 days, when the seeds crack and germinate, they can be sown. Transplant the seedlings when they have 3~5 small leaves.
② Grafting. Usually done from June to September, using roses as the rootstock. The grafting site should be as close to the ground as possible. Make a "T" shaped incision on the side of the rootstock stem with a bud knife, select a good-quality bud from the middle part of the rose branch, insert the bud into the "T" shaped incision, and tie it with a plastic strip. It can heal in about two weeks, with a high survival rate of bud grafting.
③ Cutting. In early spring or late autumn dormancy, cut branches with 2~3 buds for propagation. If using softwood cuttings, provide appropriate shading and keep the seedbed moist. Generally, roots can grow in 30 days after cutting. Using rooting powder on the branches can increase the survival rate.
(2) Rose care essentials
① Soil. For outdoor cultivation, choose a high terrain, sunny, and well-ventilated area with slightly acidic soil. Deeply turn the soil and apply organic fertilizers as a base fertilizer.
② Sunlight. Roses love sunlight and require ample sunlight to grow lush and bloom continuously.
③ Watering. Rose watering varies with the seasons. In northern regions, water sufficiently before the ground freezes to maintain soil moisture during the winter dormancy period; after the spring thaw, water sufficiently to promote bud germination and branch growth. Increase watering during the growing season and flowering period, but avoid watering during the hot summer sun.
④ Fertilizing. Roses love fertilizer, and continuous blooming requires sufficient nutrition. For potted roses, fertilize frequently, applying a dilute fertilizer every 10 days during the growing season. Base fertilizers should be slow-release organic fertilizers, such as decomposed cow dung, chicken manure, soybean cake, and oil residue. Do not fertilize during the winter dormancy period.
⑤ Pruning. In addition to winter and spring pruning, branches and leaves should be pruned promptly throughout the growing season. After flowering, prune the spent flowers and upper branches to promote the early growth of new branches and reblooming. If there are branches growing too vigorously, they should be shortened appropriately to avoid excessive nutrient consumption and affecting the growth of other branches. In the summer, if the growth is too dense, pruning should also be done.
⑥ Preventing diseases and pests. Prevent diseases and pests in a timely manner. The main diseases and pests of roses include black spot, powdery mildew, leaf blight, beetles, and tussock moths. Prevention is the primary approach. Fungicides can be sprayed regularly during hot, humid, and rainy seasons, and in winter dormancy, drugs can be sprayed appropriately.
The content shared in this article about rose breeding time and methods, as well as the commonly used breeding methods of roses, is for reference by green plant enthusiasts. We hope it can help solve your problems in green plant and flower management.