Grafting technique of Carthamus tinctorius

There are many kinds of grafting, and the commonly used methods are T-shaped bud grafting, square bud grafting, I-shaped bud grafting, sleeve bud grafting, groove bud grafting, xylem bud grafting and embedded bud grafting and so on. The affinity between Carthamus tinctorius and Euphorbia angustifolia is very strong, and grafting is often used to make bonsai and large-scale green seedlings. The commonly used methods are:

1. Splice:

It is suitable for grafting in spring and autumn. In the middle and upper part of the robust mother tree, one-year-old or current-year branches with full buds and a certain thickness are selected. the apparent Internode length of each scion is generally 2-3 buds and the total length is 2-2.5 cm. The flat side is selected as the long cutting side, and the cortical microstrip xylem is cut off, with a length of 1.5 to 1.6 cm and a tilt of about 15 degrees. The short cutting surface is on the opposite side of the long cutting surface, the length is 1/3 of that of the long cutting surface, and the inclination is about 60 degrees.

The cutting of the rootstock requires a smooth cut and a slight tilt to one side. First hit a corner knife upward on the low oblique side, then cut the xylem longitudinally, 1.5 cm to 1.6 cm long, and then cut the length of the scion inward and align it with the cambium. If the ratio difference between the rootstock and scion is large, it should be aligned to one side to form the layer. Then wrap it with a ribbon film and cover the upper part of the scion with a thin film bag.

When the rootstock is many times larger than the scion, it can be sealed by the mud ball method, that is, after that, it is entangled with film tape, but not capped, and then at the joint of the rootstock, the moist fine loess is pinched to grow an oval mud ball, which is tightly wrapped with a film of 5 inches long and 4 inches wide, wrapped with rope thread, and only a few leaves are exposed outside the mud mass. The scion can be isolated from the hot and dry climate of the outside world in the mud mass, improve the survival rate and prolong the grafting period.

2. Budding:

This method is often carried out in summer and autumn, and the common buds are t-shaped and h-shaped. In the selected part of the bud, cut it into a t-shaped or h-shaped, deep into the xylem, gently open the cortex to separate it from the xylem, and then on the branch of the scion, cut off the leaves below the bud, leaving only the petiole. The grafted bud is cut into a microwoody shield bud, which is about 1cm long and 1.2 cm long, and then embedded into a t-shaped or h-shaped incision on the rootstock, leaving the petiole out when bound. After 7-8 days, the petiole was gently touched and then fell off, indicating that the grafting had survived.

Management of grafted seedlings:

After survival, untie the winding film, wipe off the sprouting tillers and broken rootstocks in time, strengthen the management of loose soil and weeds, pay attention to drainage and irrigation in dry season, fertilize properly, and carry out preliminary coring and plastic surgery as needed.

The grafting of Carthamus tinctorius can be carried out in 2-l0 month, and the cutting should be carried out before sprouting in spring, and the budding should be from September to October.

General safflower trees are not grafted, unless they are grafted by safflower stakes, according to our horticultural method is to cut safflower branches and grow seedlings, and the grafting technology requires professionals, knives (knives of grafted trees) mulch, safflower sticks and buds, timely management according to the weather!

Time: 2019-05-25 Click: