Method for using resting buds of pear to update bearing branch set

Abstract

Provided is a method for using resting buds of a pear to update a bearing branch set. The invention relates to a novel method for carrying out updating cultivation on ageing bearing branch sets of perennial woody fruit trees on the basis of being incapable of influencing yield per plant in the current year. The method for using the resting buds of the pear to update the bearing branch set includes the steps that girdling is carried out on a base portion of the bearing branch set needing to be updated in a flowering phase, the width of girdling is 5-8mm, the depth of girdling reaches a xylem portion, the bearing branch set is retained and can continuously fruit in the current year, after the resting buds in a scaffold branch give birth to new shoots, winter pruning is carried out, and removal of the ageing bearing branch sets in a spaced mode and cultivation of new bearing branch sets are carried out. The method for using the resting buds of the pear to update the bearing branch set has a good effect in pruning of scaffolding pears, the growth rate of the resting buds on the base portion of the girdled branch sets can reach more than 80%, the growth rate of double branches can reach more than 30%, and the average length of the grown new shoots can reach more than 45cm.

Description

technical field [0001] The present invention relates to a method for promoting new shoots from latent buds of fruit trees to be used for the regeneration of aging fruit branches, and in particular to the method of inducing new shoots to grow on perennial branches (backbone branches) of pear trees under scaffolding cultivation and dwarfing and dense planting cultivation methods of sand pear varieties. A method for updating fruiting branch groups by shoots. Background technique [0002] Trellis cultivation and dwarf close planting cultivation are two new high-quality and high-efficiency cultivation methods of pear trees that have been promoted in China in recent years. The fruiting branch group on the fruiting branch or the central trunk) mainly bears fruit, but with the prolongation of the use time of the fruiting branch group, the continuous differentiation ability of the short branch flower buds, fruit quality and fruit shape uniformity of the fruiting branch group show a d...

AI Technical Summary

Problems solved by technology

Sand pear varieties generally have the characteristics of high germination rate and low branching rate. The perennial trunk branches of pear trees often lack preparatory branches (annual branches) for updating branch groups, and it is impossible to cultivate new fruiting branches to replace old fruiting branches. , affecting the improvement of pear tree quality and yield per plant

At present, in production, it is usually adopted to remove the branch groups in the winter of the current year, and to use the new branches (prepared branches) from the latent buds at the wound site to carry out new fruiting branch culture in the next year, so as to achieve the goal of updating the fruiting branch group. Due to the reduction of the number of fruiting branches, this renewal method affects the stability and improvement of the yield of a single plant in the coming year to a certain extent. The number of groups is insufficient, which will affect the yield per plant in the next 2 to 3 years; adopting branch incision is also a method commonly used to increase branches in woody plants, but due to the branching characteristics of pear trees, incision will have a negative effect on the induction of pear tree backbone branches. Little noticeable effect on new shoot growth

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