What are the breeding methods of Yellow Thorn Rose?

1. Sowing of seeds of yellow thorn roseNext, the water on the surface of the seeds can be sown, there is no specificity in the process of sowing, only the seeds need to be sown in the soil, the depth of sowing is about 1cm, and then the operation step is to water, to ensure that the soil is moist and loose and porous. <>

2. Pre-sowing treatment of yellow thorn roseSeeds need to be promoted before they are planted, and then sowing can effectively improve the germination rate of seeds and shorten the germination time of seeds. The method of seed promotion is also very simple, only need to soak in warm water for about two to three days, the temperature of the water should not be too high, about 40, and you need to pay attention to the soaking time is not too long, otherwise the seeds may swell because of water absorption.

The propagation of Rosa agaris is mainly carried out by dividing method. Due to the strong tillering ability of yellow thorn attack, and the double-petaled species generally do not bear fruit, the propagation method of dividing plants is simple, rapid and the survival rate is high. Sowing can also be used for single-petaled seeds.

Propagation by cuttings and strips. Because the yellow thorn is mostly cultivated and applied in the north, the spring temperature is low, and the young branch cuttings are mostly used, and the northern part selects the semi-lignified branches of the year in early to mid-June, and the method is the same as the spring cutting method in the same month. Branching, before budding in early spring, after the ground thaws, the branches are re-cut when dividing, digging up the roots, and the roots can be planted by splitting the roots with a sharp knife, and fertilizer and water management needs to be strengthened after planting.

Spread the strain. It is generally done in the spring before bud germination in late March. Dig up the whole bush, divide it into several parts, each part should have at least 1 2 branches and part of the root system, and then replant them separately, and irrigate them thoroughly after planting.

The grafting is made of wild thorn rose, which is easy to root, and the yellow thorn rose is used as the scion with the branches of the same year, and is grafted from December to early January of the following year. The length of the rootstock is about 15cm, take the yellow thorn rose bud, with a little xylem, cut off the upper end of the rootstock with wood, tie the yellow thorn rose bud with plastic film after leaning on it, press 50 plants and 1 bundle, and store it in mud and wet sand to promote healing and rooting. After mid-March, the seedlings were planted separately, and the plant row spacing was 20cm 40cm, and the survival rate was about 40%.

In the rainy season, cuttings are cut from the lignified branches of the year, the cuttings are 10-15cm long, leaving 2-3 leaves, inserted into the sand 1-2cm, and the plant row spacing is 5cm 7cm. Dividing is carried out in early spring at bud break.

In July, the young shoots will be pressed into the soil. Powdery mildew:

Symptoms: The leaves are sparsely powdery mold on both sides, which distorts the leaves, and the young leaves turn purple-brown and die.

Prevention and control methods. 1) Increase the application of phosphorus and potassium fertilizers to control nitrogen fertilizers.

2) Spray 800 times of 50% carbendazim wettable powder at the beginning of the disease, and spray Baume 3-4 degree stone sulfur mixture before germination.

1. Sowing of seeds of yellow thorn rose

2. Pre-sowing treatment of yellow thorn rose

Yellow thorn rose has strong tillering power, accelerated growth, and does not bear fruit after flowering, so it often uses the method of dividing plants to reproduce, which is simple, rapid, and has a high survival rate.

When the yellow thorn is propagated, it is generally in early spring and March when the plant begins to recover and re-germinates. When dividing the plant, the branches should be pruned first, and then the whole plant should be dug up by the roots. Use a knife to split the yellow thorn rose from the roots and divide it into several parts, each with at least 1 2 branches and part of the root system.

The well-divided plants should be planted separately, and they should be watered once after planting, and then fertilizer and water management should be strengthened.

Rosea is mostly propagated by cuttings in spring. In spring, the temperature is low, and young shoots are mostly used, and semi-lignified branches of the year are selected for cuttings in the month.

Select the robust lignified shoots of the current year, cut 10-15 cm long for cuttings, leave 2-3 leaves, and insert them into the sand bed.

After cuttings, the soil should be kept moist, and it can take about 40 to 50 days to take root. Transplanting is done in the spring of the following year.

Grafting is usually carried out from December to early January.

Yellow thorn rose in the grafting propagation to use easy to root wild thorn rose as rootstock, yellow thorn rose when the branch buds of the year as scion friends, graft is best with the sale of locust with the scion, cut off to remove all leaves. After removing the yellow thorn buds, tie them tightly with plastic film, and pay attention to the moisture of the yellow thorn buds. The growth of Rosa flavus was observed 10 days after grafting.

Grafting propagation is simple and easy, and the survival rate is high, and the flowering is abundant. The advantage of grafting is that it is easy to shape and trim.

The grafting and propagation of Rosea spp. is mostly carried out in July. The shoots of the yellow thorn rose are pressed into the soil, and after they have taken root, they are separated from the mother plant and transplanted in the spring of the following year.

There are many propagation methods of Rosea spp., which can be propagated by cuttings, ramification, grafting and striping. Propagation by cuttings and ramifications is more commonly used, and is generally suitable for spring period. Propagation is to cut the root system of the mother plant and plant it in the soil, while cuttings propagation is to cut the strong branches of the mother plant and cut the Chang brother in the soil.

It can be propagated by slippery and strain, and is generally suitable for around March in spring, and the survival rate is relatively high. Before dividing, the sturdy mother plant can be dug out of the soil, and its strong roots can be cut into multiple parts. The cut seed plant should have 1 2 branches and a complete root system, and then plant it in loose and breathable soil.

It can also be propagated by cuttings in early spring to prune the robust branches of the mother plant. After removing the excess leaves of the shoots, they are soaked in rooting water and dried. After the wound of the branch has healed, it can be cut in well-drained and fertile soil, watered in moderation, and need to keep the soil moist during the maintenance period.

Yellow thorn rose can be grafted and propagated by Xinxun star, which is suitable for winter periods. Before grafting, it is necessary to cut the young shoots of the yellow thorn rose, and then select the wild thorn rose with good growth as the rootstock. After the rootstock is pruned, the buds of the yellow thorn rose are inserted into the incision part of the rootstock, wrapped and tied tightly with plastic film, and the joint part can be disinfected by applying carbendazim.

It can also be propagated by strip pressing, which is suitable for around July and has a high survival rate. Choose sunny weather and press the shoots of the yellow thorn rose in the soil for reasonable maintenance. In the later stage, after the yellow thorn rose is rooted, the new yellow thorn rose can be separated from the mother plant in the warm spring, and the transplanting can be carried out after separation.

Commonly used propagation methods: dividing, striping method, cuttings, sowing method, etc.

1. Dividing. This is the most commonly used method of propagation of yellow thorn rose, before the bud germination in early spring, due to the thorny branches, you can first cut a part of the branches in the ground short about 1 2, and then dig out the whole branch, with a blade to split into several clusters of closed friends (each bush should have 3-5 branches), planted by branches, and watered once after planting to ensure survival.

2. Strip pressing method.

The survival rate is highest in July, as it pushes the current year's shoots into the soil and is easy to root, before being removed from the mother plant the following spring.

3. Cuttings. Trim the roots in the rainy season, the two-year-old plant is born in the current year's robust lignified branches for cuttings, each section is 10cm-15cm long, leaving the upper part of 2-3 leaves, to facilitate rooting, you can use indole acetic acid, indole butyric acid, ABT rooting powder, etc. to sell the treatment, the treatment time is 48 hours, the sedan car is defeated and then inserted into the semi-dry sandy soil, and then keep the soil moist, about 40 days 50 days to take root, transplanting in the spring of the following year.

First of all, it is necessary to choose the right planting temperature, and the temperature must be grasped at about 25 degrees, and then in the process of planting, it must be watered in time, and it is necessary to fertilize in time, and then sterilize in time, do a good job of drainage in time, and ensure ventilation and humidity.

The breeding method of yellow thorn rose is to dig a relatively deep pit when planting, and when planting, we must apply more fertilizer to it, and water more water to ensure its growth temperature and humidity, and manage it with water and fertilizer, which are the breeding methods of yellow thorn rose.

It must be planted in a place with relatively fertile soil, must pay attention to controlling the moisture of the soil, and should also be pruned in time, and at the same time, it is also necessary to prevent pests and diseases in advance, and apply organic fertilizer.

1. Sowing of seeds of yellow thorn rose

2. Pre-sowing treatment of yellow thorn rose

Soil requirements Rosea is not strict with the soil when growing, it is more resistant to drought and barrenness, and can also grow in alkaline soils. However, because the yellow thorn rose is not resistant to waterlogging, the soil needs to be well drained and as loose and breathable as possible.

Water and fertilizer management When planting rose, it is necessary to apply some well-rotted compost as base fertilizer, and generally do not need to be fertilized after survival, but in order to make its branches flourish, it can be applied once every other year after flowering.

After planting, the yellow thorn rose should be watered first and then watered once every 3 days or so to survive. In daily management, watering should be done in time according to the drought situation, so as to avoid wilting and even death caused by excessive drought and lack of water. In the rainy season, it is necessary to pay attention to drainage and waterlogging, and pour antifreeze water once before frost.

Pruning Yellow thorn roses should be pruned frequently.

After flowering, pruning should be carried out to remove residual flowers and dead branches to reduce nutrient consumption.

Pruning should also be done after falling leaves or before budding, and old branches, dead branches and overly dense and weak branches should be pruned to make them grow vigorously. For 1 2-year-old branches, it should be pruned as little as possible so as not to reduce the number of flowers.

Propagation method Propagation method of Rose spp. spp., strip propagation and cuttings propagation are mostly used for propagation during propagation.

The tillering ability of Rosa flavus is strong, and it is suitable for propagation by the method of dividing propagation, because the seedling propagation by the dividing method is fast, and the survival rate is high, and the double-petaled traits of the Celery plant can be kept unchanged.

Diseases Yellow thorn rose is easy to cultivate, extensive management, and has few pests and diseases. Generally, the harm of powdery mildew will occur in the growth process of yellow thorn rose, which is mainly manifested as lesions on both sides of the leaves, with a sparse powdery mold layer, which distorts the leaves, and the young leaves turn purple-brown and die.

Soil layer regulations.

In the case of growth, the demand for soil quality is not tight, and it can be more tolerant to drought and poverty, and can also grow in alkaline soil. However, because the yellow thorn rose is not resistant to waterlogging, the soil layer stipulates that the drainage pipe is better, and the air permeability is as loose as possible. Late.

Fertilizer and water management methods.

When planting, it is necessary to apply some manure as the base fertilizer, and generally do not need to be fertilized after surviving, but in order to make its flowers flourish, it can be fertilized once every other year after flowering.

After planting, the yellow thorn rose should be watered once permeability, and then watered once every 3 days to survive. In daily management methods, irrigation should be carried out immediately according to the drought situation to prevent wilting and even death due to too much drought and lack of water. In the rainy season, pay attention to the drainage pipe drainage, and irrigate 1 cold-proof water before frost falls.

Yellow thorn rose should be cut and repaired frequently. After blooming, pruning should be carried out to remove fallen flowers and dry branches to reduce nutrient consumption. After the dead leaves or before the budding stage, it is also necessary to prune and prune off the old branches, dry branches and too dense and thin branches to make them grow vigorously.

For 1 2-year-old branches, short pruning should be avoided as much as possible to prevent reducing the number of flowers.

Breeding method In the case of reproduction, the method of root propagation, strip propagation and cuttings is mostly used to carry out breeding.

Because of the fast seedling breeding and high survival rate, the characteristics of the main stem double petal will not change.

Pest. It is very easy to grow, the management method is extensive, and there are few diseases. Generally, downy mildew damage occurs in the whole growth process of Rosa flavus, which is manifested as the transformation of the leaves on both sides, with a scarce white powdery mold layer, which distorts the leaves and turns the young leaves purple-brown and wilts.

It grows in a natural environment, likes light, is slightly shade tolerant, and has strong low temperature resistance. The demand for soil quality is not tight, drought tolerant and barren, and it can also grow in saline-alkali soil, so it is suitable for loose and rich land resources. Not resistant to waterlogging.

for dead leaf bushes. Less disease.

It is necessary to have good ventilation, the requirements for the soil are not strict, it is very drought-tolerant, there can be no water accumulation, and the air permeability of the soil must be ensured.

When planting, a bucket of Qing is determined to choose the soil is more fertile and wide land, and in the fertilization must use farmhouse fertilizer, do not use the fertilizer bought outside, but also often water the plant bend, but also to prevent the occurrence of pests and diseases, if there is a situation of small insects, then be sure to spray insecticides in time.

First of all, it is necessary to pay attention to the appropriate area, the fertility and drainage of the soil must be particularly good for the slag, and the skin should be watered and fertilized in time, and it is necessary to do a good job of pruning, and should clean up the pests and insects in time, and master the appropriate breeding essentials.