Hardwood cuttings and root tillers for cuttage propagation

BlackBerry, which can refer to either BlackBerry tree or BlackBerry fruit, is a widely distributed and well-known shrub belonging to the raspberry (Rubus genus Rosaceae). It can grow up to 3 meters tall and produce soft fruit, that is, BlackBerry fruit. it is often used as dessert, jam, seedless jelly and sometimes to make fruit wine. At present, there are tens of thousands of hybrid varieties and varieties of BlackBerry, with a planting area of 4000 hectares (60000 mu) in the United States, 405 hectares (6075 mu) in the UK and 2667 hectares (40000 mu) in China. BlackBerry is rich in nutrition, rich in all kinds of amino acids and trace elements necessary for the human body, and has the functions of promoting blood coagulation, delaying aging, improving immunity, promoting brain metabolism, reducing blood pressure and blood lipids and anti-arrhythmia. At the same time, BlackBerry flowers are also a good source of honey.

BlackBerry can be propagated by cutting, striping, root tillering, tissue culture and other methods. At present, hardwood cuttings and root tillers are mainly used to raise seedlings, and tender wood cuttings can also be used where conditions permit.

① and hardwood cuttings were pruned in winter (after defoliation in December), the sturdy and pest-free branches were cut into 8-12cm cuttings with 3 buds, and the cuttings were cut before sprouting in early spring (about mid-February). Insert cuttings into the soil with 3-5cm, and insert 50 cuttings per square meter. After planting, pour enough water and cover the straw, and then often keep the soil moist. The survival rate can reach 40% 50% when the management is good, and more than 60% when it is high, and it can be out of the nursery in the winter of the same year. After the cuttage seedlings come out of the nursery, there are still many root segments left in the soil, which can be used to continue to propagate seedlings. The specific method is to apply a small amount of organic fertilizer in the nursery in winter, turn it shallowly, press the fertilizer into the soil, prepare the soil in early spring, water it once in drought, and sprout a large number of roots and tillers in April, leaving about 20 seedlings per square meter. later management is the same as the general nursery.

② and tender wood cuttings were carried out from mid-July to early August in a shade shed and under the condition of automatic spray. The soil of the cutting bed was mixed with peat and sand at 1:1, and the rooting time was 10 days after cutting. the survival rate was as high as 80% and 90%. Move to the open field after a month, strengthen the management, and get out of the nursery the next spring.