Introduction to sowing and ramet propagation of Paeonia lactiflora

Paeonia lactiflora is a perennial herb of Ranunculaceae with large and beautiful flowers. Paeonia lactiflora is not only available for ornamental use, but also has medicinal value in its roots. Artificial cultivation of peony can choose sowing and plant division methods for reproduction, the editor will introduce to you these two propagation methods of peony, interested flower friends can understand together.

Paeonia lactiflora

The propagation of Paeonia lactiflora has the methods of split-root propagation and seed propagation, and the method of split-root reproduction is often used in production. In autumn, the peony plants with thick and uniform roots, strong terminal buds and no diseases and insect pests were selected, and the large roots with a diameter of more than 0.5 cm were cut off and used as medicine, leaving the root clusters with bud heads (also known as peony heads) for planting. The bud heads used for seed are divided into pieces according to their size and natural growth shape (also known as peony buds). Each piece is suitable for 3 buds with thick and strong buds and a thickness of about 2 cm. The peony buds of each mu of peony root can be planted in 3 Mu and 5 mu of field. Peony buds should be cut and planted at the same time. If they can not be planted at a time, peony buds can be stored in a wet sand pit 20 cm deep.

Paeonia lactiflora is also propagated by ramets. As the saying goes, "the Spring Equinox divides the peony, but does not blossom when he is old", so the peony is usually divided in October after its aboveground part has withered, and it is not suitable to be transplanted in spring. When ramet, you need to dig out the root plant and cut it along the root crack with a sharp knife, so that each clump has 3 to 5 full buds and the root group below, do not hurt the bud eye, and then plant it in the sandy soil where the basic fertilizer has been applied. Cover the soil with 3 to 4 cm, keep the soil moist and unsoiled, and generally blossom in the second year after planting.

Potted peony can be combined with ramet to change the pot once a year or two, and more persistent soil should be retained when changing the pot. If the bushes are small, do not split.

Detailed introduction of ramet propagation methods and matters needing attention of Paeonia lactiflora

Paeonia lactiflora is a common ornamental plant, which has high ornamental value and certain decorative function. It is often used in gardens and courtyards. So, do you know the breeding methods and matters needing attention of peony? What are the steps of its ramet breeding site? Today, the editor will introduce it to you in detail. Let's study with the editor.

The method of plant division is the most commonly used propagation method of Paeonia lactiflora, which is basically used in the production of seedlings in peony producing areas. It has three advantages: first, it blossoms earlier than sowing method, sowing seedlings blossom in 4 ~ 5 years, and ramet seedlings can blossom every other year; second, ramet operation is simple and easy to operate, labor-saving management is conducive to wide application; third, it can maintain the excellent characters of the original varieties. The disadvantage is that the reproduction coefficient is low, and the three-year-old mother plant can only be divided into 3-5 offspring, so it is difficult to adapt to and meet the needs of modern large-scale production and the rapid growth of domestic and foreign flower markets. This has always been a difficult problem perplexing the production of peony seedlings.

1. Ramet time

Theoretically speaking, the ramet of Paeonia lactiflora can be carried out from overwintering bud filling in real time to before land freezing. However, when planted at the right time, the ground temperature is still high, which is beneficial to the healing of root wounds, sprout new roots, enhance the ability of cold and drought tolerance, and lay the foundation for the germination and growth of the following year. Do not divide plants too early, so as to avoid the occurrence of autumn phenomenon and affect the growth and development of the following year; nor should it be too late, when the ground temperature can no longer meet the needs of peony roots, resulting in poor growth of new plants in the following year. If the plants are planted and the buds sprout as late as spring, the root system is injured because the air temperature is getting higher and the air temperature is low, the transpiration is large, and the root system can not absorb water and nutrients normally, resulting in a very weak growth or even death of the broken plant. Therefore, there is a saying in our country that "the Spring Equinox divides peony and does not blossom when he is old." The suitable period for the ramet of peony is generally earlier than that of peony. Heze's agricultural proverb "July peony, August peony (refers to the lunar month)" means that in Heze, peony can be divided from the end of August until late September (the End of Heat to the Autumn Equinox). The ramets in Yangzhou were from late September to early November. Ramet seedlings can split again after three or four years of growth. For a long time, the root system will decay, the plant growth will be weak, and the flowering will be poor.

two。 Ramet method

When ramet, carefully dig up the fleshy root, reduce the root injury as far as possible, after digging up, remove the persistent soil, cut off the old hard and decayed places, and split each plant with 3-5 sub-plants, each with 3-5 or 2-3 buds; when the mother plant is small and the planting task is large, each sub-plant can also take 1 bud, but the growth should be restored more slowly, and the thick root should be retained when ramet. If the soil is moist, the root of paeony is crisp and easy to fold, it can be hung for a day before it is divided, and then slightly dried in the shade and dipped in the mud containing nutrients. In the garden green space, peony has been planted for many years, and its growth is weakening and urgent to be planted, but it can not be watched by visitors during flowering because of reproduction. The method of local ramet can be used to dig a deep hole next to the peony plant with a shovel to expose part of the peony root. Then, cut the peony plant with a shovel to reduce the vibration to the original plant as much as possible, take out the cut-off part and plant it. The deep hole dug can be compacted with appropriate amount of fertilizer and soil. We can also use the method of interplanting or interplanting, so that the ramets can be rejuvenated without affecting the landscape, only for 2-3 years in a row. However, because the continuous cropping of peony is avoided, the method of interplanting can not be applied continuously, otherwise the occurrence of diseases and insect pests is serious, the growth is poor, and even the mortality rate is greatly increased.

When Paeonia lactiflora is used for medicinal cultivation, the peony head is often used to propagate in the peony producing area, and the mother plant is dug up in autumn, all the coarse roots are cut off for medicinal use, and the peony head with bud is used as propagation material. First of all, remove the peony head without buds and diseased feet, cut the peony head into blocks, each piece with strong buds 2-3, peony head thickness 2 cm, too thick main root is not strong, multi-bifurcated, too thin is lack of nutrients. It is best to cut along with the planting, if not in time, do not cut, the head of peony can be stored in sand. It is suitable to be planted from early August to late September.

3. Post-ramet management

The planting depth is about 2 cm in the soil, too deep is not conducive to germination, and easy to cause rotten roots, leaves yellowing, poor growth, too shallow is not conducive to flowering, and easy to suffer frost damage, and even the rhizome exposed to the ground, hot summer sun exposure, resulting in death. If the ramet root cluster is large (with 3-5 buds), there may be flowers in the second year, but the shape is small, so it is better to remove to make the plant grow well. Roots from small (2-3 buds), poor growth or no flowering in the second year, usually cultured for 2-5 years.

That's all I know about peony today. I hope it will be helpful for flower friends to read this article. If you want to know more about peony, please continue to pay attention to the succulent flower bed, we will provide you with more related knowledge!

What is the propagation of 10 species of flowers and plants suitable for split propagation?

Bonsai Flower Network Guide, today the editor to share with you about 10 kinds of flowers and plants suitable for ramet reproduction of the article, what is plant reproduction? Let's take a look.

What is split propagation? Which flowers and trees can be propagated separately?

The propagation of dividing a plant into more than two plants from the root of the mother plant is called split propagation. This method of reproduction is mostly used for strong sprouting herbaceous flowers and tufted flowers and shrubs.

Whether it is the sprouting of the rhizosphere of the female parent (such as peony, wintersweet, etc.), or splitting the flowers into several clumps (such as orchid, hairpin, peony, Ruo leaf, brown bamboo, etc.), the separated plant must have roots, stems, leaves and other organs to become a complete plant before it can be called ramet propagation.

peony

The ramet propagation of tree peony has been widely used in the Ming Dynasty. The specific method is as follows: the large tree peony with luxuriant growth is dug up as a whole and separated from the junction of root texture. The number of molecular plants per plant depends on the size of the original plant, with more points for the big ones and less for the small ones. Generally, every 3-4 branches is a seed plant, and has a more complete root system. Then add a little sulfur powder and mud. Smear the wound on the root, wipe it evenly, and then you can plant it separately. The time of ramet propagation is during the period from the Autumn Equinox to Frosts Descent every year, and it is better to do it at the right time. At this time, the air temperature and ground temperature are high, peony is in a semi-dormant state, but there is still a long period of vegetative growth time, ramet cultivation has no serious effect on root growth, and some new roots and a small number of plant buds can be produced after ramet planting. If the ramet is planted too late, the root growth is very weak, or there is no new root, the next spring, the plant development is weaker, the root is weak, it is not resistant to drought, easy to die. If the ramet is too early, the air temperature and ground temperature are high, and it can grow rapidly, which is easy to cause autumn hair.

The mother plant of peony ramet is generally made use of robust clumps. In the mother plant for ramet propagation, the tillers should be retained as far as possible, and all the roots on the new seedlings should be retained so that the new seedlings can grow for 5 years. Such seedlings are easy to survive and grow more exuberantly after planting. The more roots are retained, the more prosperous they grow.

Ramet propagation of Chimonanthus praecox

When the leaf bud is just sprouting. At the end of the previous year, at 20-30 cm above the ground, all the branches of Chimonanthus praecox prepared for ramets were topped. When dividing the plant, pull out the soil around the mother plant, split it with a knife according to 2-3 stems per clump, move it out and plant it separately, leaving 2-3 thick and sturdy stems in the original place, and the separately planted Chimonanthus seedlings are planted with a row spacing of 60 cm × 50 cm. After 2-3 years of culture, they came out of the nursery or propagated separately.

Ramet propagation of orchids

It can be carried out in both spring and autumn, usually every three years. All plants with dense pseudocorms can be ramified, and at least 5 connected pseudocorms should be preserved in each clump. Irrigation should be reduced before dividing plants to make the basin soil drier. When putting on the basin after ramet, first cover the bottom hole of the basin with broken tiles, then cover the basin with coarse stones, occupy the basin depth of 5cm, 1ax, 4pm, then put coarse-grained soil and a small amount of fine soil, and then plant it with sandy loam rich in humus. Planting depth to the false bulb just buried in the soil strength, the edge of the basin left 2cm along the mouth, covered with green cloud grass or fine stones, finally watered thoroughly, placed in the shade for 10 to 15 days, keep the soil moist, gradually reduce watering, and carry out normal maintenance.

Ramet propagation of Hosta

Before sprouting in spring or after the leaves are withered and yellow in autumn, dig it out, remove the soil from the rhizosphere, and cut the underground stem with a knife according to the requirements. It is best to have 2-3 underground stems per clump and retain as many roots as possible, and plant them in a basin. This is conducive to survival and does not affect the flowering of the following year.

Methods of ramet propagation of Paeonia lactiflora

The method of plant division is the most commonly used propagation method of Paeonia lactiflora, which is basically used in the production of seedlings in peony producing areas. It has three advantages: first, it blossoms earlier than sowing method, sowing seedlings blossom in 4 ~ 5 years, and ramet seedlings can blossom every other year; second, ramet operation is simple and easy to operate, labor-saving management is conducive to wide application; third, it can maintain the excellent characters of the original varieties. The disadvantage is that the reproduction coefficient is low, and the three-year-old mother plant can only be divided into 3-5 offspring, so it is difficult to adapt to and meet the needs of modern large-scale production and the rapid growth of domestic and foreign flower markets.

The suitable period for the ramet of peony is generally earlier than that of peony. Heze's agricultural proverb "July peony, August peony (refers to the lunar month)" means that in Heze, peony can be divided from the end of August until late September (the End of Heat to the Autumn Equinox). The ramets in Yangzhou were from late September to early November. Ramet seedlings can split again after three or four years of growth.

Dig a deep hole next to the peony plant with a spade to expose part of the peony root, then cut the peony plant with a sharp shovel to minimize the vibration to the original plant, take out the cut part and plant it separately. The method is generally the same as above to cut off half of the original plant.

Methods of ramet propagation of Ruo leaves

Yelan is mainly propagated by individual plants. It can be combined with changing pots to split before the temperature rises in spring and the new buds have not germinated. The underground rhizome and leaves were divided into several clumps so that each clump had 5 leaves, and then they were planted in pots and maintained in a semi-shady environment.

The method of individual propagation of brown bamboo

Ramet propagation can be carried out in combination with turning the basin and changing soil in spring. It is the season of turning basin and changing soil from March to April in early spring. generally, small plants turn basin and change soil once a year, large plants turn basin once in 2-3 years, commonly used basin soil is 2 parts of garden soil, 1 part of stable fertilizer soil, 0.5 part of rotten leaf soil and 0.5 part of rice chaff ash.

Pour the original clump out of the old pot and remove the old mud, but take some old mud pallets on the old root, cut off the brown bamboo root cluster with mulberry shears, and cut off the blackened and rotten roots with poor growth. The incision should be flat, at least 5-6 branches per clump, and 10-20 branches at most (depending on the size of the basin and the number of plants). Then plant it into the prepared pot, cover the drainage hole at the bottom of the basin with broken pieces to facilitate drainage, put in the culture soil first thick and then fine, put it to eight points full, while adding the culture soil, poke the soil and root tightly with small bamboo slices. Do not plant too deep, with the original root neck and culture soil flat, pour enough water, put the pot plant into half a shade for about half a month and then take the pot.

Ramet propagation is mostly carried out in early spring or autumn, such as orchid, dahlia, canna, iris and so on. And woody flowers such as Chimonanthus praecox, peony and spring welcome can be carried out in spring or autumn. As for the small plants produced by Chloropsis and Saxifraga in the greenhouse, they can be separated and planted at any time.

The method of dividing plants is relatively simple, such as wax plum, peony and other tufted flowers and trees, which can be divided into clumps according to the plant size and the number of sprouting tillers; rose, Lingling and honeysuckle can be divided into rooted branches from the mother plant; dahlia, canna, etc., separate the root with bud * or plant the rhizome and bud or the aboveground part of the rhizome with a knife. Orchids, orchids, Phoenix tail bamboos, brown bamboos, Ruo leaves, Yuejingshan grass, etc. as long as they are divided into 2-3 clumps when turning the basin, they can be planted respectively.

It should be noted that there should not be too much separation from the mother plant at one time, generally 2-3 plants, with an appropriate amount of roots on each plant, such as too many roots will affect the growth of the mother plant; too few roots will affect the survival of the new plant-some valuable varieties can consider disinfecting the incision with sulfonic acid powder or other agents.

The ramet method can grow up quickly, and most of them can blossom in the same year. But the number of reproduction is the least.