Hybridization breeding pollination method for peony

A technology of hybrid breeding and peony, which is applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of accelerating the directional hybrid breeding of peony and peony, low work efficiency, easy damage to the stigma, etc., and achieves the improvement of distant hybridization. efficiency, saving pollen, and avoiding mechanical damage

Inactive Publication Date: 2010-10-27
GANSU POPULARIZE OF SCI & TECH FOR FORESTRY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pollination method for cross breeding of peony and peony, which overcomes the problems of easy mixing of pollen, easy damage of stigma, and low work efficiency in the pollination process of traditional pollination methods. Timely artificial emasculation and timely artificial pollination with simple and easy methods can obtain more hybrid offspring and speed up the process of directional hybrid breeding of peony and peony

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) In order to breed orange, red and other brightly colored varieties with purple spots, the wild original species of purple peony was selected as the female parent. The main characters are: small flowers, deep red flowers, no spots at the base of petals, and side buds 1. There are up to 8 flowers in one inflorescence, camellia fragrance type. The male parent is the wild purple spotted peony population in Wenxian County. The main characteristics are: large flowers, white flowers, purple spots at the base of petals, no side buds, fragrant flowers, large amount of loose pollen, and high pollen vigor;

[0016] (2) The female parent is artificially detasselled to select a strong and well-developed female parent. Before the flower blooms, select the well-developed flower buds of the purple peony, peel off the sepals and petals, and gently take out the anthers with tweezers. Be careful not to hurt the stigma After emasculation, restore the petals and put them in a sulfuric a...

Embodiment 2

[0022] (1) In order to breed excellent double-petaled varieties with novel flower color, peculiar flower fragrance and prolonged flowering period, the wild original species of purple peony was selected as the female parent. The main characters are: small flowers, single-petal type, deep red flowers, side buds, There are up to 8 flowers in one inflorescence, camellia fragrance type. The Central Plains peony cultivar 'Shanhutai' is used as the male parent. The main characteristics are: large flowers, crown-shaped, carmine-red flowers, no side buds, fragrant flowers, large amount of loose pollen, and high pollen vigor;

[0023] (2) The female parent is artificially detasselled to select strong growth and well-developed purple peony plants, select well-developed flower buds before the first bloom, peel off the sepals and petals, take out the anthers gently with tweezers, and be careful not to injure the stigma, After emasculation, restore the petals and cover them with sulfuric ac...

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Abstract

The invention relates to a hybridization breeding pollination method for peony, which comprises the following steps of: a, selecting a female parent and a male parent according to a breeding target; b, carrying out artificial castration on the female parent; c, collecting pollen; d, carrying out artificial pollination, wherein a pollination method adopts a method for bending stigmas to dip the pollen; e, bagging and marking; and f, harvesting and sowing seeds, wherein the seeds blossom out successively after being sown for 5 to 6 years. In the method, artificial pollination is carried out in time by a simple and easy method so as to obtain more hybrid progenies and quicken the directed hybridization breeding process of the peony. The adopted method for bending the stigmas to dip the pollen not only solves the problem of easy mixing of the pollen and avoids mechanical damage of pollination tools to the stigmas in the pollinating process, but also can save masses of pollen, guarantee the purity of the pollen of the male parent and improve the maturing rate of hybridization, particularly distant hybridization. The method has the advantages of simple operation, easy popularization and capability of greatly improving the working efficiency of the breeding industry of the peony and similar plants.

Description

technical field [0001] The invention relates to the field of plant cross breeding, in particular to a pollination method for cross breeding of peony and peony. Background technique [0002] Artificial cross-breeding is an important way to improve plant genetic characteristics and cultivate new varieties or types. It can break the boundaries between species to a certain extent, promote gene exchange between different species, and form new species. People engaged in the research and production of peony and peony at home and abroad have carried out artificial cross breeding for more than 100 years, and have cultivated a large number of new varieties. However, due to the lack of in-depth and detailed research on the genetic variation of peony peony traits, the practice of artificial breeding is blind. At the same time, the traditional pollination method is to dip the pollen of the male parent with a brush or cotton swab, and smear it on the stigma of the female parent. In the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 何丽霞李睿张延东宋桂英陈惠兰陈富慧
Owner GANSU POPULARIZE OF SCI & TECH FOR FORESTRY
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