Begonia tree is the first choice to beautify the landscape and has high ornamental value. It is an excellent nursery stock for urban park, road greening, garden landscape, courtyard viewing, villa beautification and ornamentation. So how to breed Begonia trees? What good method is there in breeding? What matters should we pay attention to when breeding Begonia trees? Please read down with me with your questions!
Beautiful Begonia tree Begonia tree breeding methods (basic knowledge): the best breeding time: Begonia tree the best breeding time in spring.
The best growing soil: Malus is suitable for loose and fertile sandy soil with deep soil layer and good drainage.
Growth humidity requirements: Begonia trees in summer to pay attention to sunstroke, to ensure that the air humidity.
The optimum growth temperature is 15-28 ℃.
The best growth light: Begonia trees like sunlight, not shade, love warm and humid environment, suitable for sunny, leeward place.
Notes for breeding Begonia trees with beautiful Begonia flowers: apply fertilizer: during the growth of Begonia trees, apply thin cake fertilizer and water about three times a month; Quick acting phosphate fertilizer was applied in bud stage, but not in flowering stage; When the flower in May falls behind, the Begonia flower will gradually enter the dormancy and semi dormancy state. It is necessary to gradually reduce the watering and stop fertilization. Attention should be paid when applying fertilizer, and the fertilizer solution should not be splashed on the leaves.
Watering points: Begonia tree growth season to have sufficient water supply, to no water shall prevail. More water should be given in spring and summer, and once in the morning and once in the evening when the temperature is high in summer; During the Meiyu period and in case of prolonged rain, attention should be paid to drainage to prevent water accumulation and root rot in the basin; In autumn, reducing the amount of water and inhibiting the growth are beneficial to overwintering.
Pruning tips: because the flowering of Begonia trees is mainly short branches, it is necessary to cut the long branches properly and cut them into hemispheres before germination in spring, so as to stimulate more new shoots to germinate. During the growing period in summer, the growing branches should be pinched.
Replacement of pot soil: every year or every other year, the pot should be slightly larger than the original one, and new soil should be added to facilitate the growth of root system.
Propagation points: Malus is usually propagated by grafting and ramet, and can also be propagated by sowing, layering and rooting.
1. Grafting: the rootstock is usually seedling, branch grafting and bud grafting are OK. Branch grafting is carried out before germination in spring, and can be cut and split. One year old branch with full development was selected for scion, and its middle part (with more than two full buds) was taken, and then the scion was covered with fine soil. Budding is carried out from July to September in autumn. T-shaped grafting is often used. About 10 days after grafting, if the buds are fresh and the petioles fall at the touch, they will be grafted. After a few days, they can be cut off and tied.
2. Ramets: more than before sprouting in early spring or after defoliation in autumn and winter. The tillers sprouting from the rhizosphere are dug out and cut into several individual plants, or 2-3 sprouts with roots are transplanted in a cluster. The fibrous roots of tillers should be reserved to ensure the survival after planting. After transplanting, water should be poured through once in time, and attention should be paid to moisture preservation, and shading should be done when necessary.
3. Layering and rooting: both in spring. The small seedlings can climb to the ground and press into the soil. The big seedlings can use high pressure method. The mud pressing place is cut with sharp knife to keep the soil moist. After the roots grow, they are cut off from the mother plant and planted separately. The root cutting method is mainly carried out when transplanting and digging seedlings. The thicker main root is cut into a section of 10-15 cm. It is buried in the soil shallowly and covered with grass to keep moisture, so it is easy to survive.
Pest control: the common disease of Begonia tree is pear cypress rust pain, also known as pear brocade pain. The disease is infected by two hosts. Prevention and control methods: during the disease period, spray with 400 times of 20% weixiuling EC. Or use 50% tuiyengte WP 800 times, spray once a half month. No spray or less spray in dry weather. In the middle and last ten days of March, when the winter Satin horn is about to expand, the mixture of 0.3% sodium pentachlorophenol diluted solution and stone sulfur mixture is used to make the mixture of Bomei 1 degree, and the mixture is sprayed 2-3 times in half a month for control.
The experience of breeding Begonia trees in full bloom: 1. The potted plants of Begonia trees in summer should be properly shaded and sprayed with water for humidification and cooling. In winter, you don't need to put it indoors, just bury the basin in the soil.
2. After planting, we should strengthen the management of supporting, fertilizing and loosening the soil. Prune from defoliation to germination in early spring, and cut off the withered and weak branches, disease and pest branches, so as to keep the canopy evacuation, ventilation and light transmission.