Composite seedling culturing method of cutting and grafting hard branches of carya illinoensis k. koch at the same period

Abstract

The invention relates to a composite seedling culturing method of cutting and grafting hard branches of carya illinoensis k. koch at the same period. The composite seedling culturing method is performed according to the following nine steps of: (1) preparing a growth hormone aqueous solution; (2) preparing cutting seedbeds; (3) collecting and treating cutting slips; (4) pretreating the cutting slips; (5) collecting and treating scions; (6) grafting the treated cutting slips; (7) cutting the treated cutting slips; (8) setting up small short arched sheds; and (9) performing management after cutting the cutting slips. When the method is used for composite seedling culturing, wasted branches in the process of grafting seedlings can be fully utilized, labor and time are saved, the work efficiency is improved, the seedling culturing cost is reduced, the planting land of root stocks is reduced, seedling development can be advanced by 1-2 years, grafting and seedling culturing cycles can be shortened, the seeling culturing number is increased, and the survival rate is as high as over 80%.

Description

technical field [0001] The invention relates to a seedling raising method in which asexual propagation cuttings and grafting are carried out at the same time in forestry production, in particular to a compound seedling raising method in which cuttings and grafting are carried out at the same time on hard branches of hickory carya. Background technique [0002] Caryaillinoensisk.koch belongs to the arbor of Juglandaceae Carya. Its rooting type belongs to the induced rooting primitive, and the cuttings do not have root primordium before cutting; it also belongs to the callus rooting type, but due to the thin shell mountain Walnut branches contain a large amount of compounds such as tannins. This kind of secondary metabolites will be browned after being oxidized at the incision, and it is difficult to form effective callus tissue. Rooted tree species. Due to the above reasons, in the asexual propagation of Carya carya, the grafting method is used more, and the root cutting met...

AI Technical Summary

Problems solved by technology

[0002] Caryaillinoensisk.koch belongs to the arbor of Juglandaceae Carya. Its rooting type belongs to the induced rooting primitive, and the cuttings do not have root primordium before cutting; it also belongs to the callus rooting type, but due to the thin shell mountain Walnut branches contain a large amount of compounds such as tannins. This kind of secondary metabolites will be browned after being oxidized at the incision, and it is difficult to form effective callus tissue. rooted tree species

Due to the above reasons, in the asexual propagation of Carya carya, the grafting method is used more, and the root cutting method is also reported, but it is rarely used; in the cultivation of Carya Carya grafted seedlings, seeds are generally used to cultivate seedlings, etc. When it grows to a certain thickness, it will start grafting, and the cultivation time will be 2-3 years; in order to shorten the time for seedling cultivation, the compound seedling raising method of cutting and grafting with hard branches at the same time has not been reported so far.