Propagation methods of Gardenia jasminoides

Gardenia can be propagated by a variety of methods of sexual reproduction and asexual reproduction, generally using cutting and striping methods for reproduction, and can also be propagated by ramet and sowing methods, but they are rarely used, and it is generally not easy to receive seeds in northern potted plants. let's take a look at the breeding methods of gardenia!

Cutting propagation of Gardenia jasminoides

The cutting method can be divided into spring cutting and autumn cutting. Spring planting is carried out in the middle and late February, and autumn insertion is carried out from late September to late October. There is a slight difference between the north and the south, but the survival rate is the highest between summer and autumn. Cuttings choose healthy 2-3-year-old branches, cut 10-12 cm, cut off the lower leaves, the top two leaves can be retained and cut off half, first dipped in vitamin B12 injection, and then obliquely inserted in the bed, leaving only one section above, pay attention to shade and maintain a certain humidity.

Generally, it can take root in 1 month, and it can take about 15 days under the condition of 80% relative humidity and 20-24 ℃. If soaked with 20 × 10 (- 6 power) ~ 50 × 10 (- 6 power) indolebutyric acid for 24 hours, the effect is better. When the rooting seedlings begin to grow, they can be transplanted or put on the pot for a single plant, and can blossom after 2 years. In the south, there are also those who are propagated by water insertion, that is, cuttings are inserted on a disc woven with Reed stalks and let them float on the surface of the water, so that their lower parts take root in the water, and then transplanted and cultivated.

Striping propagation of Gardenia jasminoides

It is generally carried out before and after the Qingming Festival in April or in the Meiyu season. In April, one-year-old strong branches are selected from the 3-year-old mother plant, which are 25cm long and 30cm long. They are pulled to the ground, and the buried parts of the branches are scratched. If they can be dipped in 200ppm powder acetic acid and then covered with soil compaction, it is easier to take root. If there are trigeminal branches, you can get three seedlings at the fork at a time. Generally, it can take root after 20-30 days, can be separated from the mother plant after rooting in June, and can be planted separately with soil or a single plant in the next spring.

Spring is the best way to transplant seedlings or potted plants, and it is necessary to bring soil balls in the rainy season. Keep the soil moist during the growing period, and water more during flowering and midsummer. Fertilize once a month and increase phosphorus and potassium fertilizer before flowering. Pruning and shaping in the early spring of the following year, and cut off dead branches and long branches in time.

Sowing and propagation of gardenia

Generally choose full, dark red ripe fruit, even shell sun or dry as a seed, before sowing, use scissors to cut the seed pericarp, dig out the seed, rub in hot water to disperse, remove floating seeds or impurities, and then remove the sunken full seed, spread it on the bamboo mat, put it in a ventilated place to dry too much moisture. Generally choose Xiangyang hillside or Tufang, the soil layer is deep, loose and fertile sandy loam sowing, you can use the field edge corner planting, or interplanting with legumes. Before planting, plough the land 1 to 1.5 feet, remove miscellaneous trees, set up the border according to the width of 4 to 5 feet (the soil quality is better, the distance can be larger, otherwise it is smaller), the border is 6 inches high, and soil manure, green manure or human and animal manure can be used as base fertilizer, for example, 20,30 piculs of human manure per mu should be applied, and the soil should be raked after the soil is dried to level the border surface. Sow the ditch at a distance of 6 to 7 inches on the border surface, and the ditch is about 1 inch deep to be sown.

Gardenia can be sowed in spring or autumn, generally in spring, spring sowing before and after Rain Water, autumn sowing before and after the Autumn Equinox, seeds mixed with fire ash evenly sown in the sowing ditch, and then cover the flat sowing ditch with fine soil or fiery soil, cover the grass with water, and often keep the soil moist to facilitate seedling emergence, with seeds of 4 kilograms per mu. After emergence, we should pay attention to remove the cover grass in time, weed frequently in the seedling stage, be careful not to hurt the roots of the seedlings, need to dilute human feces and urine after weeding, and can be transplanted after raising seedlings for one year. If the transportation is far away, it is appropriate to use yellow mud slurry root, cover grass to moisturize, plant one plant in each hole, cover soil, compaction, and sprinkle water. After planting, weeding and topdressing is applied once every spring and summer, which can be applied to human and animal manure, barnyard manure, compost, cake fertilizer and so on. Before flowering in summer, it is better to apply fertilizer with more phosphorus and potassium content, and fertilization is generally carried out after weeding and loosening the soil.

Water rooting and propagation of Gardenia jasminoides

The length of annual branches is 10 cm and 12 cm, and there are 2 leaves and 4 leaves. Cut the tip of the branch into a horseear and soak it in 0.1% potassium permanganate solution for 4 hours, then take it out and insert it into clean water. The length of the cuttings is the total length of the cuttings. The brown bottle is used as a container to change the water every 1 to 2 days. The cuttings can also be drilled in the wood or foam board to insert the cuttings into the holes and then float on the water.

After the gardenia flower grows new root, moves from the darker place to the bright place, the root length reaches 1.5 × 2 cm, when the individual root quantity has 6% 7, then can transplant to the pot or the ground.