Method for boosting pear hybrid seedlings to form flowers ahead of time

A hybrid and seeding technology, applied in the field of crop breeding and cultivation, to achieve the effects of simple operation, early flowering and shortening of childhood

Inactive Publication Date: 2011-03-02
NANJING AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long juvenile period of pear trees has become the main bottleneck restricting the breeding workers to improve the breeding efficiency

Method used

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  • Method for boosting pear hybrid seedlings to form flowers ahead of time
  • Method for boosting pear hybrid seedlings to form flowers ahead of time
  • Method for boosting pear hybrid seedlings to form flowers ahead of time

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] (1) Individual measures to deal with

[0021] Carry out following processing to the hybrid seedling tree that has certain amount of growth when new shoot stops growing:

[0022] Pulling branches: Select the strong and substantial branches of hybrid seed trees with moderate growth and relatively vigorous growth for branch pulling treatment. The angle of pulling the branches is controlled at about 60°. Push 3-5 times to reduce the base angle, and then slowly bend the tip of the branch to the left and right for 2-4 times, then make small circle rotations up, right, down and left for 3-4 times, and then pull to The angle to be opened is finally fixed with a rope.

[0023] Circumcision: Select hybrid seedlings that grow vigorously and vigorously for circumcision. The specific method is: select larger side branches of the same size from the hybrid tree plant, use pruning shears to cut a circle at 10 centimeters away from the main trunk, and then cut another circle at 15 cen...

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Abstract

The invention relates to a method for boosting pear hybrid seedlings to form flowers ahead of time, belonging to the field of crop breeding and cultivation. The hybrid seedlings with certain growth undergo branch drawing, shoots twisting, girdling, PP333 spraying in a single or combined manner when the new shoots of the pear trees stop growing, later, the flower beginning conditions of the plants are surveyed and statistics of the flowering rates is made. The above treatment measures can boost the hybrid seedlings to form flowers 1-2 years ahead of time, thus effectively shortening the juvenile phase of the hybrid progeny. The method has theoretical and practical significance in shortening the breeding period, reducing the land occupation period of the hybrid seedlings and labors for orchard management and improving the selecting and breeding efficiency of the new fruit tree varieties and has broad application prospect in fruit tree breeding.

Description

a technical field [0001] The invention provides a method for promoting early flowering of pear hybrid seed trees, and belongs to the field of crop breeding and cultivation. Two background technology [0002] Pear is one of the world's main fruits and the third largest fruit tree species in my country. Pear trees are native to my country and have a wide variety of varieties, strong adaptability and wide distribution. Most of the existing main varieties in my country are bred varieties with their own intellectual property rights or traditional local varieties. For a long time, Chinese scientists have accumulated rich experience in pear breeding. In terms of breeding methods, hybrid breeding is mainly used to cultivate a series of new and excellent varieties. However, hybrid breeding takes a long time, usually 15 years or even longer, the breeding efficiency is low, and the replacement cycle of new varieties is long, which often cannot meet the needs of producers and consumer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G7/06
Inventor 张绍铃崔艳波吴俊吴华清陶书田齐开杰
Owner NANJING AGRICULTURAL UNIVERSITY
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