A large-scale propagation method of apple dwarfing self-root stock sh38 or sh40

A dwarfing self-root stock, SH38 technology, applied in the direction of stratification, can solve the problems of difficult large-scale production, prone to necrosis, small size of cuttings, etc., to achieve simple production process, sufficient nutrient supply, and uniform tree growth. Effect

Active Publication Date: 2021-10-19
石家庄涵煦农业科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, due to the small size of the cuttings, the nutrients stored in them are extremely limited, and necrosis is prone to occur during the cutting process.
In terms of production, apple cutting propagation is also difficult to produce on a large scale
Moreover, the cutting seedlings and tissue cultured seedlings are very weak, and they need to be cultivated for another year before they can be used as rootstocks for grafting. The whole cycle is too long
Due to these difficulties, there is no large-scale propagation of SH38 and SH40 self-rooted seedlings through these two methods in production. At present, SH38 and SH40 are still used as intermediate stock seedlings in apple cultivation.

Method used

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  • A large-scale propagation method of apple dwarfing self-root stock sh38 or sh40

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Effect test

Embodiment 1

[0042] The present embodiment provides a kind of large-scale propagation method of apple dwarfing self-root stock SH38, and it comprises the steps:

[0043] (1) Establishment of breeding nursery

[0044] Select plots with rich soil, loose soil, flat terrain, and irrigation conditions to establish breeding nurseries. In the breeding nursery, the octagonal crabapple root stock seedlings grafted close to the rhizome of SH38 are used for colonization as the mother tree in the breeding nursery. The planting density is 0.5-0.7m and the row spacing is 4m. Before planting, dig a 30cm deep planting ditch, and the planting depth is 10cm below the ground level for the grafting interface. After planting, pour water 3 times continuously to ensure survival. Before the germination in the year of planting, it was cut short above 11cm from the grafting interface. After germination, remove rootstock sprouts, keep 3 to 4 strong sprouts above the grafting interface, and erase the rest. During ...

Embodiment 2

[0059] The present embodiment provides a kind of large-scale propagation method of apple dwarfing self-root stock SH40, and it comprises the steps:

[0060] (1) Establishment of breeding nursery

[0061] Select plots with rich soil, loose soil, flat terrain, and irrigation conditions to establish breeding nurseries. In the breeding nursery, the octagonal crabapple root stock seedlings grafted close to the rhizome of SH40 are used for colonization as the mother tree in the breeding nursery. The planting density is 0.5-0.7m and the row spacing is 3.8m. Before planting, dig a 32cm deep planting ditch, and the planting depth is 11cm below the ground level for the grafting interface. Continuous watering after planting ensures survival. Before the germination in the year of planting, it was cut short above 12cm from the grafting interface. After germination, remove rootstock sprouts, keep 3 to 4 strong sprouts above the grafting interface, and erase the rest. During the growth pe...

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Abstract

The invention relates to a method for large-scale propagation of apple dwarfing self-root stock SH38 or SH40. The method is suitable for cultivating SH38 or SH40, specifically grafted seedlings using SH38 or SH40 close to the rhizome and using Octagonal Begonia as rootstock. Or the self-rooted seedlings are used as the mother tree, through carving buds on the annual branches, horizontal layering, fixing the soil, twisting the base of new shoots that germinate from the horizontal layering, hormone treatment, landfill substrate, humidity and fertilization management, seedlings, and division. Seedlings were obtained from SH38 or SH40 dwarf self-root stock. The propagation method of the present invention adopts SH38 or SH40 semi-lignified young shoots that do not leave the parent body for rooting, and has the advantages of mild propagation conditions, simple production process, strong technical operability and implementability, high seedling rate, and high seedling quality. Good and other advantages. Utilizing the method of the present invention can make the dwarfing apple SH38 and SH40 from the root stock realize large-scale and low-cost propagation, thereby obtaining stable properties, uniform tree growth, early flowering and early fruit, saving fertilizer, water, land, and fruit shape. Apples with high index regularity were dwarfed from root stock SH38 and SH40.

Description

technical field [0001] The invention relates to the technical field of apple seedling breeding, in particular to a method for breeding apple dwarfed self-root stock. Background technique [0002] Apple dwarfing self-root stock is based on the principle of plant cell totipotency, using the tissues and organs of apple dwarfing rootstock to form root stock through asexual reproduction method. It is produced by the vegetative body of the mother plant, and its heredity is the same as that of the parent, which can ensure the consistency of rootstock seedlings and fruit seedlings. Apple seedling rootstocks are rootstocks obtained by the propagation method of seed sowing. According to "Mendel's law", seeds have the law of segregation and the law of free assortment. Therefore, the seed rootstock is genetically heterozygous, which in turn affects the tree vigor of apple trees and the overall quality and yield of apple fruits. The dwarfing middle stock of apple also belongs to the ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G2/20
CPCA01G2/20
Inventor 毛向红剧慧存赵文平
Owner 石家庄涵煦农业科技有限公司
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