What are the propagation methods of common flowers?
Camellia in bud is particularly shy and beautiful against the backdrop of green leaves and sunshine. Spring is the season when camellias are in full bloom, a good time for human beings to enjoy flowers and a good time for camellias to breed. So what are the breeding methods of camellia?
First, cutting propagation
Mid-June and the end of August are the best. Semi-mature branches with abundant external tissues, complete leaves and full leaf buds were selected as cuttings, with a length of 8 ~ 10 cm and two leaves at the top. When cutting, try to take some old branches at the base, and it is easy to form callus and take root quickly after cutting. The cuttings were cut in the morning, and they should be inserted with the cuttings, and the matrix should be about 3 cm. When cutting, ask the leaves to meet each other, and then press them with your fingers. It is best to insert it shallowly, so that it is breathable and heals quickly. The bed should be shaded and sprayed with leaves every day to keep it moist. The temperature should be kept at 20 ~ 25℃, and it will start to heal about 3 weeks after transplanting and take root after 6 weeks. When the roots grow to 3 ~ 4 cm, transplant them to the upper pot. Soaking the base of cuttings with 0.4% ~ 0.5% indolebutyric acid solution for 2 ~ 5s during cutting has obvious root promotion effect.
Second, graft propagation.
It is often used for cutting varieties that are difficult to take root or have few propagation materials. The survival rate of grafting is the highest when the new buds are semi-qualitative in May-June, and the new buds germinate quickly after grafting. Camellia oleifera is the main rootstock, which was harvested in June+10 in 5438, stored in sand in winter and sown in early April of the following year. When the seedlings grow to 4 ~ 5 cm, they can be grafted. Cut off the germ part of the rootstock with a blade, split it vertically upwards along the pith center of the cross section of the embryonic axis, then take a section of camellia scion, cut the base below this section into a right-angled wedge shape, immediately insert the cut scion into the bottom of the split part of the rootstock, align it with the cambium on both sides, tie it tightly with cotton thread, and put on a clean plastic bag. It takes about 40 days to remove the pocket, and about 60 days to germinate and sprout.
Third, the propagation of high-branch layering
High-branch layering is mostly carried out in April ~ May. The method is to select annual branches and peel them into a circle at the high pressure part with a width of 0.5 cm. Wrap the girdling part with a plastic film of appropriate size, and the wrapping length is 10 ~ 15cm. Tie the lower mouth tightly first, put wet culture soil in it to keep the soil moist, and then tie the upper mouth tightly. Hair roots can be cut off and planted separately.
camellia
Fourth, sowing and breeding.
Suitable for single valve or semi-double valve varieties. 65438+ seed1can be sown when it matures in the middle of October. Suitable for shallow sowing, vermiculite as substrate, covering 6 mm, room temperature 2 1℃, light 10 hour every night, can promote seed germination, and the seedling height can reach 8 cm within 30 days after sowing. When the seedlings grow to 2-3 leaves, they should be transplanted.
Verb (abbreviation of verb) tissue culture and reproduction
The explants are ordinary seedlings. After routine disinfection, it was cut into 1 cm long and inoculated on MS medium supplemented with 1 mg/L kinetin, 1mg/L 6- benzylamino adenine and 0. 1 mg/L indoleacetic acid. After 4 weeks of culture, only callus was formed, but no buds were formed. After transferring to a new medium, a single branch of 4 cm began to form, then it was soaked in 0.5 mg/L indolebutyric acid solution for 20 minutes, then transferred to 1/2 MS medium, and took root after 4 weeks. After growing on long-root medium for 8 weeks, the seedlings were transplanted into flowerpots filled with perlite and peat.
The above are the five propagation methods of camellia, which are generally easier to propagate. Camellia can be successfully propagated as long as the operation method is correct, the culture medium is well managed and the environmental temperature is well controlled.