Rapid Breeding Method of Seedling Varieties

Abstract

The invention provides a fast breeding method for nursery stocks, the method comprising following steps: 5- to 10-year-old trees having a good growth state are chosen as mother trees; nursery stocks to be bred are grafted on the mother trees; branches, 2-3 cm upwards away from the graft positions, of the mother trees are cut off or sawn off; when the number of leaves of new branches of the nursery stock sprouts on the mother trees reaches 10 to 15, 1-2 leaves are kept, top branches of the nursery stocks are cut off, and leaves of the nursery stocks are removed; non-lignification branches of mother trees in the same year are chosen as female plants for grafting; when the grafted sprouts of nursery stocks survive, the parts which are 1-3 cm upwards away from the graft positions are cut off, or one leave on each graft position is kept, or at the position 3-5 cm upwards away from each graft position, girdling is employed to force sprouting of the nursery stocks. By use of the fast breeding method, current problems such as low reproduction coefficient, long breeding cycle and difficulties in large-scale seedling culture are solved.

Description

technical field [0001] The invention belongs to the technical field of seedling planting and breeding, and in particular relates to a rapid breeding method for seedling varieties. Background technique [0002] In addition to the main influencing factors of natural weather and environment on fruit tree breeding, the overall quality of my country's current seedlings is low, the rate of seed supply in the base and the utilization rate of improved varieties are low; the production of seedlings is fragmented and the scale of seedling production is small and scattered. Small-scale nurseries or family seedlings have become dominant, and industrialized seedlings still need to be vigorously developed. At present, the basic methods of propagating saplings include seeding, grafting, cutting, layering and branching. Seed propagation means sowing seeds to raise seedlings. Although the method is simple, the reproduction coefficient is many, the seedlings grow quickly, and the life span i...

AI Technical Summary

Problems solved by technology

Solve the problem of low reproductive coefficient and long time of current seedling varieties, making it difficult to raise seedlings on a large scale