Rose rapid seedling technology

The new seedling raising technique is characterized by: short seedling raising period, and generally about one year of nursery stock time, it will be able to cultivate the high-quality seedlings needed for production and cultivation, which will greatly shorten the seedling raising time. The new nursery technology can be divided into the following steps.

First, grafting

1. One-by-one grafting method In mid-September, we chose to grow robust branches of the year in the Rose Garden, graft a rose bud every 20 centimeters, and check for survival. Grafting survival buds to grow 15 to 20 cm spikes, the distance from the wall to buds 3 to 5 cm, the next wall cut into a slant. Each bundle of 20 bundles is embedded in wet wood chips with a moisture content of 60%. With the use of a geothermal heating, the temperature was controlled at 24 to 26°C and all callus was generated after 10 days. But to control it well, you can't take root.

2. The winter indoor grafting method utilizes the collected rose cuttings or direct access from the field. Scion to take annual rose branches, cut into 5 to 6 cm long, the interface cut surface to retain 1 to 2 buds. The use of "double tongue" grafting method, that is, in early December of the year to the end of January can be carried out, the rootstock and scion below the increase of 2.0 to 2.5 cm material surface, in the middle of the two spikes longitudinal cut a knife, 0.4-0.5 cm deep, cut parallel to the noodles, avoid vertical cuts. When cutting, the knife should be fast, and it is best to complete it once. The cutting surface is smooth and smooth. It should avoid repeated cutting friction, damage the formation of layer cells, and affect the formation of callus. When the two spikes are combined, the layers will be aligned. If the two ears are different in thickness, one side is aligned to form a layer. Tightly tied with plastic film, thinly tied to facilitate the production of callus, the top speed in the paraffin wax cap, paraffin temperature 60 ~ 80 °C. The bundles of grafted cuttings were bundled and the wet wood chips gave birth to the callus and used for sand reserve.

Second, sand

In a place where there is no leeward sunlight, dig 1 meter deep and 1 meter wide. Determine the length of the cut. Ditch the bundle and insert it into the ditch. ~ 5 cm of fine sand, after pouring a suitable amount of water, the central vertical a grass, cover soil 20 cm. Note that as the temperature rises and falls, the territories are reduced or thickened in a timely manner to ensure that the cuttings do not freeze and germinate. If the length of the ditch is 3 to 5 centimeters, a straw should be placed and the diameter of the grass should be 15 to 20 centimeters so that the cuttings can be ventilated and ventilated. After the cut, the cuttings will be moved to the seedbed first, and warm and moisturizing measures will be taken. After rooting, the cuttings will be moved to the nursery.

Third, nursery

1. The method of raising the seedlings in the small arch shelter in late February. After the cuttings are thawed, the cuttings grafted in one dragon or in the winter season will be buried 15 centimeters and 30 centimeters apart, and then poured into water. Then the plastic covers the shed. In late April, the seedlings were gradually uncovered. Timely unbundling, wiping buds, strengthen management, after the fall out of the garden into seedlings, seedling height can be more than 50 cm.

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