Method for establishing distant hybridization open pollination breeding system of stone fruits

A technology of distant hybridization and open pollination, applied in botany equipment and methods, plant genetic improvement, cultivation, etc., can solve the problems of low breeding efficiency, achieve the effect of reducing labor costs and improving efficiency

Inactive Publication Date: 2021-07-16
禄劝普林生物科技有限责任公司
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Problems solved by technology

[0003] Because distant hybrid breeding requires processes such as artificial pollination, pollen treat...

Method used

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Embodiment 1

[0045] A method for establishing a drupe class distant hybridization open pollination breeding system, comprising the steps of:

[0046] 1: Parental selection, need to exclude Se, S4', Sf and other genes that affect self-compatibility;

[0047] 2: Environment selection, high temperature environment should be avoided, the maximum temperature should not exceed 34°C;

[0048] 3: Exclude pollination trees to avoid interference with the system by ScSe-type plums or hybrid plums;

[0049] 4: Tree type selection, because of the characteristics of strong tree vigor of drupe fruit distant hybrids, choose spindle tree type;

[0050] 5: Arrangement of parental trees. In order to improve the unit efficiency of pollination, the arrangement of parental trees is as follows:

[0051] The spacing between plants is 3 meters, and the ridge height is 30 cm.

[0052] AB

[0053] BA

[0054] Two trees in AB each constitute a unit, covering an area of ​​36 square meters;

[0055] 6: Open hybri...

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Abstract

The invention discloses a method for establishing a distant hybridization open pollination breeding system of stone fruits and belongs to the technical field of stone fruit breeding. The method comprises the following steps: 1, selecting parents; 2, selecting an environment; 3, removing pollinizers; 4, selecting tree types; 5, arranging the parent trees; 6, performing open hybrid pollination; 7, obtaining hybrid seeds; 8, accelerating germination and sowing; 9, performing grafting of high branches; 10, screening. According to the method, through parent selection of self-incompatibility and cross-compatibility, a large number of hybrid seeds can be obtained under natural conditions. Compared with an artificial pollination mode, the method has the advantages that the labor cost is greatly reduced, and the efficiency is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of stone fruit breeding, and in particular relates to a method for establishing a stone fruit distant hybridization open pollination breeding system. Background technique [0002] With the deepening of stone fruit breeding work, the depletion of intraspecific genetic resources has led to the lack of some good trait genes, and it is difficult to make great breakthroughs in conventional breeding of intraspecific resources. Distant hybridization can broaden plant genetic resources and is one of the most effective ways to innovate germplasm resources. [0003] Distant hybrid breeding requires processes such as artificial pollination, pollen treatment, and pistil treatment, and the overall breeding efficiency is low because of its hybrid affinity problem. Contents of the invention [0004] The object of the present invention is to provide a method for establishing an open pollination breeding system for drupe ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01G2/30A01G17/00
CPCA01H1/02A01H1/04A01G2/30A01G17/005
Inventor 谢伟明黄嘉威李志钧
Owner 禄劝普林生物科技有限责任公司
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