Rose Rapid Seedling Raising Technology
Today's sharing: knowledge about rose cultivation at home, rose rapid seedling raising technology, please see the detailed introduction below.
Pingyin is known as the hometown of roses. In recent years, through constant exploration and practice, a set of rose rapid seedling raising technology has been summarized. The characteristics of the new seedling raising technology are: short seedling raising period, generally, the seedlings in the nursery for about one year can meet the requirements of high-quality and strong seedlings needed for production cultivation, which greatly shortens the seedling raising time. The new seedling raising technology can be divided into several steps.
I. Grafting
1. (Y-T-L) Grafting Method In mid-September, select strong annual branches from the rose nursery, and graft a rose bud every 20 cm. After checking for survival, they are备用. Cut the surviving buds into 15-20 cm long scions, with a distance of 3-5 cm from the top wall to the bud, and cut the bottom wall into an oblique surface. Tie 20 into a bundle and bury them in wet sawdust with 60% water content. Use ground heating cables to warm, controlling the temperature at 24-26°C, and after 10 days, callus will form. However, it is important to control it to prevent root formation.
2. Winter Indoor Grafting Method Using collected rose cuttings or directly using them from the field. The cuttings are cut into 5-6 cm long from one-year-old rose branches, retaining 1-2 buds on the cutting surface. Use the "double tongue" grafting method, which can be carried out from early December of the current year to late January of the following year. The upper end of the rootstock and the lower end of the scion are cut into a 2.0-2.5 cm surface, and a longitudinal cut is made in the middle of the two斜面, 0.4-0.5 cm deep, parallel to the cutting surface, avoiding vertical cuts. The cutting should be quick, preferably done in one go, with a smooth and flat cutting surface, avoiding multiple frictional cuts that can damage the cambium cells and affect callus formation. When combining the two scions, align the cambium layers, and if the thickness of the two scions is different, align one side of the cambium layer. Tie tightly with a plastic strip, sparse tying to facilitate callus formation, and quickly dip the top in wax, with the wax temperature at 60-80°C. Bundle the grafted cuttings and use wet sawdust to induce callus formation, then store them in sand for later use.
II. Sand Storage
In a windless, sunny, and water-free area, dig a trench 1 meter deep and wide, and the length depends on the number of cuttings. Place the bundled cuttings into the trench with the oblique surface facing down, then cover them with a 3-5 cm layer of fine sand, water them appropriately, and insert a straw bundle in the center, covered with 20 cm of soil. Pay attention to adjusting the thickness of the soil layer according to the temperature changes to ensure that the cuttings are not frozen or germinated. If the trench is long, insert a straw bundle every 3-5 cm, with a diameter of 15-20 cm, to allow proper ventilation and aeration for the cuttings. After the cuttings survive the winter, move them to the seedling bed first, take measures to keep warm and moist, and after rooting, move them to the seedling raising ground.
III. Seedling Raising
1. Small Arch Shed Seedling Raising Method After thawing in late February, place the (Y-T-L) or winter indoor grafted cuttings in the seedling bed with a spacing of 15 cm x 30 cm, water thoroughly, and then cover with a plastic shed. From late April, gradually uncover the shed to harden the seedlings. Timely remove ties,抹bud, strengthen management, and by autumn, the seedlings can be 50 cm tall or more.
2. Field Seedling Raising Method In late March, when the temperature is relatively stable, place the cuttings in the seedling bed with a spacing of 15 cm x 30 cm, and strengthen the field management after burying the cuttings. By autumn, the seedlings can be 40 cm tall or more.
3. Nutrient Cup Seedling Raising Method The nutrient cups are made of newspaper or plastic film, about 3/4 the length of the cuttings, with a diameter of about 10-15 cm, and have 4-6 corn-sized ventilation holes evenly distributed in the lower half of the nutrient cup. Place the grafted cuttings in the cup, fill with soil from the seedling bed, and pack tightly in the seedling bed, water thoroughly, but be careful to prevent freezing. About 500 can be placed per square meter. Move to the field or arch shed in spring for seedling raising, with a spacing of 10 cm x 30 cm.
4. Trench Storage Seedling Raising Method Dig a trench 1 meter deep and straight in the north-south direction, with the length depending on the number of cuttings. Place the cuttings in bundles of 20 flat on the bottom of the trench, then cover with 5-10 cm of fine sand, water appropriately, cover the mouth of the trench with straw mats and plastic film to preserve moisture and prevent cold. After the cuttings form callus and roots, move them to the seedling raising ground in spring.
5. Winter Warm Greenhouse Seedling Raising Method Move the autumn seedlings grafted in the year or the (Y-T-L) grafted cuttings that have been rooted to the winter warm greenhouse before mid-October, plant them at a spacing of 15 cm x 30 cm, water thoroughly, cover with plastic mulch to increase ground moisture, and take management measures such as keeping the shed warm and moist, pruning the rootstock, removing weeds, fertilizing, and controlling pests and diseases, and hardening the seedlings before selling. The seedlings can be sold in the spring of the following year, generally 40 cm tall or more.
The above [] introduces the full content of the rose rapid seedling raising technology, hoping it will be helpful to green plant enthusiasts!