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A kind of method of begonia hybrid breeding

A technology for cross-breeding and begonia, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of not giving full play to the excellent traits of the father, difficult to maintain excellent traits, unstable variety traits, etc., and achieve shortened breeding. The effect of time, thick leaves and strong resistance to stress

Inactive Publication Date: 2016-11-30
CHANGZHOU KEHONG ELECTRONICS DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most varieties are obtained through hybridization, and some varieties have unstable traits and mutate after several generations, making it difficult to maintain good traits
Some did not give full play to the excellent traits of the father

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for begonia hybrid breeding, comprising the steps of:

[0031] (1) Using Begonia sibiri as the female parent and Begonia mosaic as the male parent, crossbreed to obtain the first generation of offspring, and then backcross the first generation with Begonia mosaic for 5 generations to obtain the backcross hybrid A;

[0032] (2) Take the backcross hybrid A as the female parent, and then cross it with Begonia toadscens as the male parent to obtain the first hybrid B;

[0033] (3) Use the hybrid first generation B as the female parent, and the silver star begonia as the male parent to cross again, and then obtain the hybrid offspring C with tall plants, large flowers and fertile leaves, long flowering period, disease resistance, cold resistance, barren resistance, and strong stress resistance. ;

[0034] (4) During the sowing period, sow the first hybrid B as the female parent and the hybrid offspring C as the male parent;

[0035] (5) 25 to 35 days after sowing,...

Embodiment 2

[0040] A method for begonia hybrid breeding, comprising the steps of:

[0041] (1) Using Begonia sibiri as the female parent and Begonia mosaic as the male parent, crossbreed to obtain the first generation of offspring, and then backcross the first generation with Begonia mosaic for 5 generations to obtain the backcross hybrid A;

[0042] (2) Take the backcross hybrid A as the female parent, and then cross it with Begonia toadscens as the male parent to obtain the first hybrid B;

[0043] (3) Use the hybrid first generation B as the female parent, and the silver star begonia as the male parent to cross again, and then obtain the hybrid offspring C with tall plants, large flowers and fertile leaves, long flowering period, disease resistance, cold resistance, barren resistance, and strong stress resistance. ;

[0044] (4) During the sowing period, sow the first hybrid B as the female parent and the hybrid offspring C as the male parent;

[0045] (5) 25 to 35 days after sowing,...

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PUM

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Abstract

The invention discloses a method for begonia crossbreeding. By means of multi-generation crossbreeding of four species, the problems about parents can be greatly solved, the breeding time is greatly shortened, a part of advantages of hybrid of an original hybrid variety can be maintained in new hybrid variety by means of bred varieties, and excellent characteristics that the parents are free of are achieved and include vigorous plant growth, thick leaves, bright flower colors, long flowering phase, resistance to diseases, cold and barren condition, high stress resistance and the like.

Description

technical field [0001] The invention belongs to the field of plant breeding, and in particular relates to a method for cross breeding of begonias. Background technique [0002] Begonias are herbaceous perennials or woody plants. The stem is green, and the nodes are swollen and juicy. Some have rhizomes, others have rhizomes. The leaves are alternate, round or obliquely heart-shaped with unequal sides, some leaves are shaped like elephant ears, red or green in color, or have white markings, the back is red, and some leaves have protrusions. The flowers are terminal or axillary, in cymes, and the flowers are white, pink, red and other colors. There are more than 400 kinds of begonias, and nearly a thousand horticultural varieties. There are three types of bulbous begonias, root begonias and fibrous root begonias. Most varieties are obtained through crossbreeding, and some varieties have unstable traits and mutate after several generations, making it difficult to maintain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
Inventor 上官秋玉
Owner CHANGZHOU KEHONG ELECTRONICS DEVICES