Hybrid hazel seedling-breeding method

Abstract

The invention relates to a hybrid hazel seedling-breeding method. A sandy loam land is chosen for breeding, and the plant and the row spacings are 0.8m to 1m multiplied by 2.2m to 2.8m. 45-angle oblique layering is carried out, the angles of seedlings are adjusted to 45 to 0 degree relative the ground according to the growth of the seedlings after sprouts emerge on the backs of the seedlings, andif the front young sprouts are higher than the rear young sprouts, then the front young sprouts are lowered, or else are raised. Meanwhile, shallow burying is adopted to treat root systems, and pinching is carried out once every ten days in late June and early July in the year of planting. Pruning and cutting are carried out to induce root shoots. After seedling-breeding seed trees are pruned, the trunks are 1m high, and thirty growing points are left over. The ratio of the lower basal young sprouts to the upper emerging young sprouts is 1:1. When basal branches are grown to 50cm to 60cm high, leaves which are less than 25cm are rooted out, so that related cuts are produced. Rusted iron wires are used for transversely constricting basal roots 1cm away from the ground, and rooting agent issprayed on the transversely constricted parts. Soil is used as seedling-raising substrate, and soil conditioner is sprayed. The seedlings are packaged in plastic films filled up with wet material andloaded into cartons. The hybrid hazel seedling-breeding method has the advantages that: a number of seedlings can be raised in a unit area, the quality is high, the oblique layering technique is advanced, the hybrid hazel seedling-breeding method is suitable for breeding in a large area, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of asexual propagation of nut seedlings, in particular to the technical field of asexual propagation of hybrid hazelnut seedlings. Background technique [0002] The history of hazelnut utilization in my country has been five to six thousand years, but the history of cultivation is very short, and the history of breeding hybrid hazelnut seedlings is even shorter. Only in the 1990s did a series of hybrid hazelnut varieties come out. After years of trial planting, it has been shown that its cultivation technique requirements are simple, its adaptability is strong, and its economic benefits are high. It has been planted in more than 10 provinces, municipalities and autonomous regions in Heilongjiang and Xinjiang in northern my country. The bottleneck of its development is: seedling breeding methods are not advanced enough, so that there are less than 4 million hybrid hazelnut seedlings in the country every yea...

AI Technical Summary

Problems solved by technology

Its advantage is that because it is asexual reproduction, it can ensure the purity of the variety, and basically solves the problem of breeding hybrid hazelnut seedlings; Filling with sawdust is cumbersome to operate; due to too few branches left on the mother plant of the seedlings, it will cause a large number of death of the mother plant after a few years, on the contrary, if too many branches are left, the quality of the seedlings will decline

In short, the number of breeding seedlings is small and the cost is high in the nursery of the same area.