Take the seedlings that have been sown and propagated as rootstocks for branch grafting or bud grafting. Carry out branch grafting or bud grafting. Tree sap flows and germinates in spring for branch grafting, and can bud grafting in autumn (July-September). Branches can be cut and split. The scion is selected from the fully developed 1 year branches, and the middle section (with more than two complete buds) is taken. After grafting, cover the scion with fine soil and bud grafting with the word "T". It takes about 10 days after grafting. If the bud is fresh and the corner of the petiole falls off, it is proof of grafting, and it can be unbound in a few days. When the height of seedlings is 80 cm ~ 100 cm, backbone branches are formed, and then only dense branches, inward branches and overlapping branches are pruned to keep the crown round.
Precautions:
The difficulty of grafting survival
In plant taxonomy, the closer the genetic relationship, the easier it is for plants to survive by grafting, which is caused by the different plant tissue structure. However, the combination with close genetic relationship is difficult to graft. The survival of grafting depends on the healing degree of callus formed between rootstock and scion cutting surface. After grafting, the callus on the cutting surface of rootstock and panicle forms quickly, and the plants with large callus formation are easy to survive, otherwise it is difficult to survive. Grafting survival means that the cambium of each section of rootstock and scion is closely connected, and both sections differentiate into callus, which is the regeneration ability of the plant itself. The well-developed calli are combined to fill the gap, and the nutrients absorbed by the rootstock are transported to the scion through the calli. In the process of callus formation, scions germinate and begin to grow. Of course, the difficulty of grafting survival was also influenced by the shapes of rootstocks and scions at that time, external factors and operating techniques.
Graft compatibility
Grafting compatibility refers to the long-term normal growth and development from seedlings to trees after grafting survival. If the graft survives, the tree will gradually weaken and die, or the grafted part will be easily blown off by the wind. , it will be considered incompatible. However, some incompatibility phenomena are characterized by dwarf trees, yellow leaves, thick and thin interfaces or thin and thick tops. But from the cultivation point of view, if the tree can develop normally after these phenomena, it can be used for garden cultivation or potted plants.
Selection of rootstock
Different kinds of flowers and trees use different rootstocks. For example, roses can be used as rootstocks; Begonia can use Vitex negundo or Begonia as rootstock; Peach or all kinds of peaches can be used as rootstocks, such as Shouxing Peach, Shan Tao Peach and Maotao Peach. Osmanthus fragrans can use Ligustrum lucidum as rootstock; Plum blossom can use peach, apricot or plum as rootstock; Mao Dujuan can be used as rootstock for rhododendron. Cherry blossoms can be used as rootstocks; Magnolia can be used as rootstock; Camellia can use wild camellia as rootstock; Chimonanthus praecox can be used as rootstock; Papaya can be used as the rootstock of sessile begonia.
Some flowers and trees seeds must be preserved in low humidity sand before germination to break the dormancy period, such as rose, rose, begonia, peach, plum, elm plum, begonia fruit, Vitex negundo, longevity peach, cherry and so on. Low-humidity sand storage treatment is to wash the harvested seeds and dry them in the shade, bury a layer of wet sand or a combination of wet sand and seeds in a flowerpot, and put the flowerpot in a cold room at 0℃~ 5℃. Prepare the sand storage time in advance according to the sowing date.
Grafting technique
The grafting time is generally better when the terminal bud just begins to sprout in early spring. Scion is an annual full and complete branch left by pruning last autumn. It is cut into 6 to 10 cm long segments, and each segment has at least 2 complete buds. In order to keep moisture, the incision is often sealed with paraffin. When grafting, the scion is cut into two symmetrical inclined planes with different sizes, one is 1.5 ~ 2.0 cm long and the other is 0.8 ~ 1.0 cm long. The cut surface must be smooth, and it is best to cut it with one knife. At the same time, when the rhizome is about 20 cm away from the ground, cut off the rhizome and cut a crack with a depth of 2.0 to 2.4 cm on the north side of the rhizome section. Then insert the long section of the scion inward into the incision of the rootstock. The cambium on one side must be aligned with the cambium on one side of the rhizome. If the thickness of rootstock and scion is similar, the cambium on both sides can be arranged better. Finally, tie it with plastic strips. It is best to tie the grafting place with a small plastic bag to prevent water evaporation.
In addition, other breeding methods can be used.
The branching method is carried out before germination in early spring or after defoliation in autumn and winter. Tillers sprouting from rhizosphere are dug up and cut into several individual plants, or 2-3 sprouting strips with roots are clustered and transplanted. After planting, water it thoroughly in time, pay attention to moisturizing, shade it when necessary, and water it when it is dry. Soon, new branches can be born at the broken roots, and become independent new plants after defoliation in autumn or before germination in early spring.
Although the seedlings of sowing method grow slowly, they often mutate, so in order to obtain a large number of rootstocks or cross breeding, sowing method is still used. The common rootstocks in northern China are Zi Shan, ... & gt
Question 2: Ask a question. What rootstock is used for grafting begonia? Begonia, pears and apples.
Question 3: What other tree species can begonia be grafted besides peach trees? Begonia can't be grafted with peach trees (they are far apart and grafting is incompatible). Can be grafted with hawthorn, sweet tea, apple and different begonia varieties.
Question 4: What tree can begonia flower graft? 5. China apple or Vitex negundo was used as the grafting stock of China apple.
Propagation method of begonia flower
It is often used for sowing, dividing plants and grafting propagation. Grafting is the main method, layering and branching can also be used. Sowing method is only used for breeding. Grafting rootstocks mostly use begonia or Vitex negundo. Extensive cultivation resistance and wide adaptability. Only by proper irrigation, fertilization and attention to shaping and pruning can plants be healthy and flowers multiply. Sowing can be autumn sowing or spring sowing after sand storage. Seedling growth is slow, it takes 5-6 years to blossom, and it often mutates, so it is only used for rootstock cultivation and cross breeding. Horticultural varieties are propagated by grafting, with Vitex negundo or Begonia seedlings as rootstocks, and branch grafting and bud grafting can be used. Branch grafting can be cut and split, and bud grafting is mostly in the shape of "D". Many branches are planted before germination in early spring or after defoliation in autumn and winter. [4]
Grafting before germination in spring or between July and September in autumn. Propagation by ramets before germination in spring or after defoliation in autumn and winter. Spring layering and root cutting. Before sowing in spring, the seeds must be treated with low temperature stratification to accelerate germination for 30- 100 days. After planting seedlings, the soil should always be loose and fertile, and pond silt or fertile soil can be cultivated in the rhizosphere every autumn. Prune once in spring, cut off dead branches and weak branches, and keep tree-like evacuation, ventilation and light transmission. Generally, it is planted in multiple rows, but you can also make piles and practice potted plants. The suitable planting period is before germination in early spring or after defoliation in early winter. It is one of the keys to keep the root system intact when the seedlings leave the nursery.
Question 5: What fruit trees can the seedlings of begonia be grafted to provide nutrition for the growth of apple buds, so it is somewhere between the two, begonia is the rootstock of apple and apple is the scion of begonia.
Begonia, Xifu Begonia and so on all belong to the same family as apple, belonging to Rosaceae, and can be grafted with each other. After the apple seedlings are grafted on the begonia, the branches of the apple seedlings will grow into apples.
Question 6: What is the rootstock for grafting woody begonia flowers? Or when are the seeds of begonia available? How are they? Vitex negundo, catalpa, bonus
There are many kinds of sub-shops on the seed network!
Question 7: What is the grafting of begonia flower? Vitex negundo or begonia seedlings can be used as rootstocks, and branch grafting and bud grafting can be adopted. Branch grafting can be cut and split, and bud grafting is mostly in the shape of "D".
Question 8: What kind of wood is the begonia flower grafted with? Vitex negundo or Begonia seedlings can be used as rootstocks, and branch grafting and bud grafting can be adopted. Branch grafting can be cut and split, and bud grafting is mostly in the shape of "D".
Question 9: What seedlings can be grafted with begonia seedlings as rootstocks? Begonia, pear, apple
Question 10: What rootstock should be used for grafting begonia? Begonia or begonia can be used as rootstock. Peach or all kinds of peaches can be used as rootstocks, such as Shouxing Peach, Shan Tao Peach and Maotao Peach. Osmanthus fragrans can use Ligustrum lucidum as rootstock; Plum blossom can use peach, apricot or plum as rootstock; Mao Dujuan can be used as rootstock for rhododendron. Cherry blossoms can be used as rootstocks; Magnolia can be used as rootstock; Camellia can use wild camellia as rootstock; Chimonanthus praecox can be used as rootstock; Papaya can be used as the rootstock of sessile begonia.
Some flowers and trees seeds must be preserved in low-humidity sand before germination to break the dormancy period, such as rose, rose, begonia, peach, plum, elm plum, begonia fruit, Vitex negundo, longevity peach, cherry and so on. Low-humidity sand storage treatment is to wash the harvested seeds and dry them in the shade, bury a layer of wet sand or a combination of wet sand and seeds in a flowerpot, and put the flowerpot in a cold room at 0℃~ 5℃. Prepare the sand storage time in advance according to the sowing date.