(I) Characteristics
Deciduous erect shrubs, about 2 meters high. Branches stout, branchlets with prickles, fine thorns, glandular hairs, densely villous. Leaflets 5-9, thicker, elliptic to elliptic-obovate, 2-5 cm long, 1-2.5 cm wide, sulciate at margin, glabrous, wrinkled, abaxially pubescent and glandular; petiole Leaf shafts are villous, sparsely prickly, prickly; stipules mostly merge with petiole. Flowers solitary or several congregate; floral stalks, sepals with short villous, glandular hairs or fine thorns outside; flowers purplish, single-petal, aromatic, 6-8 cm in diam.; styles separated, densely villous, shorter than stamens. Rosehip spherical, 2-2.5 cm in diameter, red. Flowering from May to June.
Rose is a perennial woody plant in the Rosaceae, which is an ornamental and medicinal flower. Roses are warm and relatively dry. They are not shade-tolerant and should grow in sandy loam rich in humus. They should not be planted in clay and dry and barren land.
(II) Economic value
The flowers are fragrant and contain aromatic oils. They are used as raw materials for a variety of high-grade perfumes, soaps, and cosmetic essences. They are also used as food essences; flowers and roots are used as medicines to regulate blood circulation and to make astringents.
(III) Nursery Technology
Strains, cuttings, grafting, sowing and sowing are all available. The ramets are carried out before germination in early spring, and the ramets frequently grow more flourishing. The cuttings are mostly made from young shoots in the late spring and early summer. For grafting and breeding, roses are used as rootstocks, and budding and cutting can be adopted. The former is appropriate from August to September, and the latter is preferred in spring. Single-valve varieties are easy to seed, and should be harvested after sand cultivation. They should be sown in early spring. Plants with strong adaptability to the rose plants are suitable for sunny and dry places. Avoid boiled water, but watering should be done timely before flowering, timely cutting off withered and dried old, timely ramets should be carried out in order to maintain ventilation and light transmission. Before and after flowering, fertilization should be applied to promote the formation of flower buds and to supplement the nutrient consumed by flowering, so that the whole plant grows robustly throughout the year, and there are fewer pests and diseases.
1. Cuttage begins cutting in early spring. Before cutting, select hardwoods that are full-grown and robust in the year and cut them into 10-15cm cuttings with 3-4 buds. Prior to cutting, dip for 5 to 10 minutes with 500 mg/L of the rooting solution. When cutting, insert the bed in a good sandy loam soil first, and then insert the cutting strip into the hole with a spacing of 10 cm and a spacing of 5 cm. The insertion depth is 1/2 of the insert. Then, compaction, pouring 1 times pervious, take a small shed insulation moisturizing. Every 10 days, the film was watered off at noon on sunny days to keep the bed sensation, and germination took place one month later. In the middle or late April, the film was peeled off, and according to conventional management, it can be transplanted with soil in June. Twig cuttings are carried out during the annual rainy season. First, the twigs are cut into 15-20 cm cuttings, each with 2-3 shoots. The cutting method is the same as above. There is no need to cover the film after cutting, but it should be shaded during the day and the cuttings should be open in the night.
2. Bud grafting methods can be adopted in grafting production. Rose or cutting seedlings are used as rootstocks, and the selected scion is suitable for buds full and disease-free.
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