Pyrus spinosa belongs to Rosaceae. Thorn pear flower can be used as medicine, with the function of stopping diarrhea. It can cure dysentery and diarrhea. So how is the pear flower cultivated? What good method is there in breeding? What matters should we pay attention to when breeding pear blossom? Please read down with me with your questions!
Breeding methods of Pyrus spinosa (basic knowledge): the best breeding time: Pyrus spinosa can be sown in autumn or sand until the next spring, cutting can be carried out in early spring or plum rain season;
The best growing soil: the soil requirement is not strict, but the fertile sandy loam is better;
Growth humidity requirements: maintain a certain air humidity;
The best growth temperature: the temperature is generally maintained at 20-25 ℃, rooting fastest, too low temperature rooting slow, too high is easy to dry up;
Best growth light: warm, humid and sunny environment.
Cultivation methods of Pyrus spinosa attention points for cultivation of Pyrus spinosa: fertilizer application:
In winter ploughing, manure can be applied or rotten organic fertilizer can be sprinkled, and then ploughed into the soil. Rosepeanuts should be frequently fertilized for a long time, and quick acting fertilizer should be applied 1-2 times after flower withering. Thin fertilizer should be applied in high temperature and drought, the last fertilizer should be applied before winter, and weeds should be removed in time before fertilization.
Watering points:
In the field planting of pear, sufficient water should be poured in the dry season, especially in the bud stage and flowering stage. At the same time, no water should be accumulated in the rainy season.
Pruning tips:
Pruning in summer is mainly to cut off the sprouting branches and flowers of the grafted rootstock, cut off the residual flowers and sparse the redundant buds with leaves after flowering, so as to reduce the consumption of nutrients and create good conditions for the next flowering. In order to make the plant beautiful, cut 1 / 3 or half of the long branches, 1 / 3 of the middle branches and 1 cm above the leaves. If the pruning is too light, the longer and higher the rose plant, the thinner the branches and the smaller the flowers. Pruning in winter depends on the variety and cultivation purpose. When pruning, the branches should be left and the overall shape of the pear plant should be paid attention to. For large flower varieties, 4-6 branches should be left, 30-45 cm long. Strong buds should be selected on one side and the upper branches should be cut off. For vines or vines, the old techniques should be spared, weak branches and diseased branches should be cut off and the main trunk should be cultivated.
Breeding methods of Pyrus spinosa
Breeding points:
Sowing and cutting propagation are commonly used.
Sowing: the seeds are collected in September, and can be sown in autumn or sand till the next spring. Generally, the seeds germinate 20-25 days after sowing. Seeds can be used for seedling, but it is difficult to survive in seed cultivation, so it is generally not recommended to use seeds for cultivation. In production, softwood cutting is often used to raise seedlings, which is easy to survive. Rare varieties are difficult to cut.
Cutting: early spring or plum rain season. Cuttings, also known as cuttings, is a common method of breeding plants. It is easy to survive by cuttage. We should choose strong and healthy branches without diseases and insect pests as cuttings. After selecting cuttings, it should be handled carefully. Cuttings of softwood cuttings should be cut immediately after harvest to prevent wilting from affecting survival. General plant cuttings below the incision, such as stained with some just burned ash, to prevent decay. In general, 20-25 ℃ is the best temperature for rooting. If the temperature is too low, the rooting is slow, and if the temperature is too high, the cuttings will rot easily. Therefore, if the artificial control of temperature conditions, all year round can be cuttings. Under natural conditions, the temperature in spring and autumn is suitable. After cutting, we should pay attention to keep the cutting substrate moist, but we should not make it too wet, otherwise it will cause rot. At the same time, we should also pay attention to the humidity of the air. We can keep the humidity by covering with plastic film, but we should pay attention to ventilation within a certain period of time.
Pest control:
The common diseases and insect pests of Rosa roxburghii Tratt are powdery mildew, aphid, Spodoptera xylostella, Aleurocanthus spinifera and Carposina molitor. Powdery mildew occurs in spring and autumn, and should be sprayed in early June. The control effect can reach 74% - 88%. Aphids are mainly harmful to new shoots. It is better to spray 80% dichlorvos 2000 times to control aphids. In addition, it is also effective to leafhoppers, Spodoptera exigua, leaf roller moths and leaf beetles. Bemisia tabaci parasitizes on the back of leaves and can be controlled by 2 000 times of Isocarbophos in May to August. Spraying 2.5% dipterex 6000 times and spraying twice from early July to August can control the moth.
Medicinal value: 1. Origin: distributed in southwest and Shaanxi, Gansu, Anhui, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Tibet and other places.
2. Taste: sweet, flat.
3. Indications: stop diarrhea.
4. Usage and dosage: oral: decoction, 1 ~ 3 yuan.
5. Chemical composition:
1) Silk reeling flower
2) Single filature flower. Mature fresh flesh contains vitamin C and other vitamins, such as nicotinic acid, vitamin A, vitamin B2, vitamin K and vitamin E. The content of vitamin C and nicotinic acid was 2.4% and 2.8%, respectively. In addition, it also contains a lot of sugar, pectin, citric acid and inorganic salts.
3) The root and stem contain tannin. The root bark from Sichuan contains 19.75% tannin. It also contains vitamin B2, 4%; vitamin P, 2.8%.