Yangmei sapling grafted with wolfberry
The bayberry seedlings generally use branches and grafts. The scion selects a productive tree that grows vigorously and enters the full fruit period. The 1-2 year old shoots in the upper and middle parts of the canopy are cut. The root stocks are selected from wild seedlings or seeded trees to sow the seedlings and cultivate the seedlings 2-3 years later. Antigen Sars Poct Test,Sars-Cov-2 Antigen Test,Covid-19 Antigen Rapid Test,Covid-19 Igg Igm Antibody Test Wuxi BioHermes Bio & Medical Technology Co., Ltd. , https://www.biohermesglobal.com
The grafting of Yangmei is carried out before the sprouting in the spring, and the early connection is more favorable, but the interface is survived due to sulfur injury too late, and it is usually conducted from early February to late March. Each scion is 6-7 cm long and then wrapped with plastic film.
Yangmei sap flow is strong, affecting the survival rate of grafting, especially grafting on large rootstocks, with greater impact. In order to suppress the tree potential and reduce root sap rise, the following methods can be used for treatment.
1. Grafting in situ, cutting off the root system. It is commonly used in 2-3 year old rootstocks. After grafting, deep cuts are made on both sides of the rootstock and the main lateral roots are cut off.
2, grafted off-site. Before grafting, dig up the rootstock, cut off some of the main lateral branches, change the land for planting, and then graft.
3, indoor grafting. The rootstocks are dug up, grafted indoors, used for 2-3 year old rootstocks, or 3-4 year old rootstocks excavated from the mountains, and then planted or planted directly on the site of the planting.
4, leaving branches grafted. First planting rootstocks, then grafting on the spot, more applications for large rootstocks. That is, grafting is carried out on the main branch, leaving another branch as a "dumping branch" to attract moisture to the branch, slowing down the growth potential of the grafted part, so as to increase the survival rate of grafting.