What are the propagation methods for Rosa laevigata? This article gives you a detailed introduction
Rosa laevigata blooms in summer, and its flowering period is very long, up to 4 months, with very high ornamental and economic value. It can generally be propagated by sowing, cuttings, division, layering and grafting.
Rosa laevigata
I. Sowing
Seeds can be used for raising seedlings, but because seed cultivation is relatively difficult to keep alive, it is generally not recommended to use seeds for cultivation. In production, softwood cuttings from the current year are mostly used for raising seedlings, as they root easily. Precious varieties are relatively difficult to root from cuttings.
II. Division
This is a propagation method in which the small shoots growing from the roots and stem base of the plant are cut off at the point where they connect to the mother plant, and then planted separately so that they grow into independent new plants. This method is simple and easy, and the plants establish quickly. It is widely used in horticulture.
III. Cuttings
Cuttings, also called stem cuttings, are a common propagation method for cultivating plants. Softwood cuttings from the current year root easily when used for raising seedlings. Choose vigorous branches free of pests and diseases as cuttings. After selecting the cuttings, handle them carefully. Softwood cuttings should be taken and inserted immediately to prevent wilting from affecting survival. Generally, if the lower cut end of a plant cutting is dipped in some freshly burned plant ash, it helps prevent rot. For most plants, cuttings root fastest when kept at 20-25°C. If the temperature is too low, rooting is slow; if too high, it easily causes the cut end of the cutting to rot. Therefore, if temperature can be controlled artificially, cuttings can be taken all year round. Under natural conditions, the temperatures of spring and autumn are suitable. After cutting, be sure to keep the cutting medium moist, but do not make it too wet, otherwise it will cause rot. At the same time, pay attention to air humidity; plastic film can be used to cover and maintain humidity, but be sure to ventilate within a certain period.
IV. Layering
For propagating roses, older branches from superior varieties should be selected, and layering should be used to raise seedlings. Layering is a method in which the branches and vines of a plant are pressed and buried in a moist medium, and after they root, they are separated from the mother plant to form new plants. The survival rate of the resulting plants is high, but the propagation coefficient is small, so it is mostly used when propagation by other methods is difficult, or when larger new plants are to be propagated. Layering is a method of artificial asexual propagation (vegetative propagation) of plants. Unlike grafting, the branch remains as it is, that is, it is not detached from the mother plant; part of it is buried in the soil, and after it roots, it is separated from the mother plant.
V. Grafting
When propagated by grafting, asexually propagated seedlings can bloom in the same year. For seedlings used as potted flowers, older branches from superior varieties should be selected.
Propagation methods of Rosa laevigata and the effects of Rosa laevigata
Rosa laevigata, also known as shan shiliu, is an evergreen shrub that can grow by climbing. Its flowers are as white as snow, with a rich fragrance that refreshes the heart. Let us take a look below at the propagation methods of Rosa laevigata and knowledge about its effects.
Introduction to Rosa laevigata
Rosa laevigata is an evergreen shrub, up to 5 m tall, with stout branchlets; leaflets are leathery, 5-10 cm long including the petiole; leaflets are 2-6 cm long, with an acute or rounded-obtuse apex, rarely caudate-acuminate; the petiolules and leaf rachis have prickles and glandular hairs.
Flowers are solitary in the leaf axils, 5-7 cm in diameter; pedicels are 1.8-2.5 cm long, occasionally 3 cm, and the pedicels and hypanthium are densely covered with glandular hairs, which become prickles as the fruit develops; sepals are ovate-lanceolate, with a leaf-like apex, the margin pinnately lobed or entire, often with bristles and glandular hairs, the inner surface densely pubescent, slightly shorter than the petals; petals are white, broadly obovate, with a slightly concave apex; stamens are numerous; carpels are numerous, styles are free, hairy, much shorter than the stamens. Fruit is pear-shaped or obovate, rarely nearly spherical, purple-brown, densely covered with bristles on the outside, the fruit stalk about 3 cm long, with persistent sepals. Flowering period is April-June, fruiting period is July-November.
Propagation methods of Rosa laevigata
Rosa laevigata is generally propagated by sowing and cuttings, mainly by cuttings.
1. Seed propagation
Sow fresh seeds in winter, open shallow furrows at a row spacing of 750px, scatter the seeds evenly into the furrows, cover with 37.5px of soil, and sow 30-37.5 kg per 1 h㎡. Seedlings emerge in the spring of the following year, and after 2-3 years of seedling growth, they are transplanted in spring.
2. Cutting propagation
Before sprouting in spring, select vigorous mother plants, cut 1-2-year-old branches as cuttings, 12-375px long, insert them obliquely in a sand bed, press firm, water, keep frequently moist, and cover with reed blinds for shade. After about 2 months, they can root and sprout. Transplant in February-March or September-October of the following year. Open holes at a row spacing and plant spacing of 40-1500px each, plant 1 plant per hole, cover with soil and press firm, and water.
Effects of Rosa laevigata
Rosa laevigata has effects such as securing essence and reducing urination, reducing urination and stopping seminal emission, relieving cough and asthma, resisting spasms, lowering blood lipids, and being antibacterial and anti-inflammatory. It is contraindicated for those with excess fire or pathogenic heat, because it has astringent properties. In addition, Rosa laevigata should not be eaten together with cucumber or pig liver.
Propagation methods of Rosa laevigata and a complete collection of Rosa laevigata wine recipes
The effects and functions of Rosa laevigata are extremely good, and some people may grow some and wait for the fruit to make wine. So what are the propagation methods of Rosa laevigata? How do you use Rosa laevigata to make wine? Let us take a look together below.
I. Propagation methods of Rosa laevigata
1. Sowing: Rosa laevigata seeds can be used for raising seedlings, but because seed cultivation is relatively difficult to keep alive, it is not recommended to use seeds for cultivation. In production, softwood cuttings from the current year are mostly used for raising seedlings, as they root easily.
2. Cuttings: For Rosa laevigata cuttings, choose vigorous branches free of pests and diseases as cuttings. If the lower cut end of the cutting is dipped in some freshly burned plant ash, it helps prevent rot. Cuttings root fastest when kept at 20-25°C. If the temperature is too low, rooting is slow; if too high, it easily causes the cut end of the cutting to rot. Under natural conditions, the temperatures of spring and autumn are suitable.
3. Layering: Rosa laevigata is propagated by layering to raise seedlings. Layering is a method in which the branches and vines of a plant are pressed and buried in a moist medium, and after they root, they are separated from the mother plant to form new plants. The survival rate of the resulting plants is high, but the propagation coefficient is small, so it is mostly used when propagation by other methods is difficult, or when larger new plants are to be propagated. Unlike grafting, the branch remains as it is, that is, it is not detached from the mother plant; part of it is buried in the soil, and after it roots, it is separated from the mother plant.
4. Grafting: When propagated by grafting, asexually propagated seedlings can bloom in the same year. For seedlings used as potted flowers, older branches from superior varieties should be selected.
5. Division: This is a propagation method in which the small shoots growing from the roots and stem base of the plant are cut off at the point where they connect to the mother plant, and then planted separately so that they grow into independent new plants. This method is simple and easy, and the plants establish quickly. It is widely used in horticulture.
II. A complete collection of Rosa laevigata wine recipes
Making wine with Rosa laevigata is simple and easy. Select 1-2 jin of washed ripe Rosa laevigata and 5 jin of baijiu, with an appropriate amount of rock sugar. Place the Rosa laevigata in a clean bottle or other container, then add the baijiu to soak. The container must be sealed and stored in a cool, dry place. Generally, it can be drunk after one month.
Common recipes for Rosa laevigata wine
1. Xianling wine (from Qifang Leibian)
[ Formula ] 60 g of Epimedium, 30 g each of Psoralea corylifolia, Angelica sinensis and Cuscuta chinensis, 150 g of Rosa laevigata, 15 g each of Achyranthes bidentata, Chuanxiong, Morinda officinalis, fennel, cinnamon and Eucommia ulmoides, 8 g of agarwood, and 4000 g of baijiu.
[ Preparation ] Stir-fry the two drugs fennel and Psoralea corylifolia until slightly yellow, put them together with the other drugs into a silk bag, tie the opening tightly, place them together with the baijiu in a container, seal it, boil it in a water bath for 3 hours, then bury it underground for 3 days to remove the fiery nature, and it is ready.
[ Effects ] Strengthens yang and secures essence, strengthens tendons and bones, and supplements marrow. It is suitable for cold limbs and aversion to cold, listlessness, fatigue and lack of strength, impotence and seminal emission, and premature ejaculation. Middle-aged and elderly people with insufficient blood and qi are also suitable to take it regularly.
[ Administration ] Once each in the morning and evening, 20-30 ml each time.
[ Note ] Contraindicated for those with yin deficiency and hyperactive fire.
2. Rosa laevigata wine (from Common Health-Building Traditional Chinese Medicines)
[ Formula ] 150 g of Rosa laevigata, 60 g of Polygonum multiflorum, 45 g each of Morinda officinalis and Astragalus membranaceus, 30 g each of Codonopsis pilosula, Eucommia ulmoides, Polygonatum sibiricum and deer sinew, 15 g each of Cuscuta chinensis and Lycium barbarum, 1 pair of gecko, and 2500 g of rice sanhua wine.
[ Preparation ] Process the above drugs into small pieces, place them together with the baijiu in a container, seal and soak for 15 days, and it is ready.
[ Effects ] Replenishes qi and generates blood, tonifies the kidney and secures essence. It is suitable for dual deficiency of qi and blood, with symptoms such as weak constitution, dizziness and blurred vision, fatigue and lack of strength, seminal emission, premature ejaculation, frequent, clear and profuse urination, and enuresis.
[ Administration ] Once each in the morning and evening, 20-30 ml each time.
[ Note ] Do not take it if there is externally contracted fever.