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Method for improving self-compatibility of chrysanthemum

An affinity, chrysanthemum technology, applied in the field of improving chrysanthemum self-compatibility, to achieve the effect of improving affinity and overcoming chrysanthemum self-crossing obstacles

Inactive Publication Date: 2012-03-14
SHENYANG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no method to effectively overcome the self-compatibility of chrysanthemum

Method used

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  • Method for improving self-compatibility of chrysanthemum
  • Method for improving self-compatibility of chrysanthemum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Successfully improved the self-compatibility of chrysanthemum 'S0291'

[0017] A. Characteristics of chrysanthemum 'S0291'.

[0018] The chrysanthemum ‘S0291’ is a ground cover chrysanthemum type, with 1 round of ligulate flowers, 26-31 pieces, light pink; the average number of tube-shaped flowers is 165-190. The natural flowering period in Shenyang is from early September to mid-October. The self-compatibility index of chrysanthemum 'S0291' was 0 when conventional artificial pollination was adopted.

[0019] B. The specific method of implementation is as follows:

[0020] 1. Microscopic inspection with a hand-held magnifying glass to identify the stigma development period, and select the late stage of I-type stigma of ligule-shaped flower pistil for processing and pollination.

[0021] According to the anatomical observation, according to the natural maturation sequence of chrysanthemum stigma, the stigma can be divided into "I-type" early stage, "I-type" late stage...

Embodiment 2

[0054] Successfully improved the self-compatibility of chrysanthemum 'C038'

[0055] A. Characteristics of chrysanthemum 'C038'.

[0056] The chrysanthemum ‘C038’ is multi-headed cut chrysanthemum, with 3 rounds of tongue-shaped flowers, 84-97 pieces, rose color; the average number of tube-shaped flowers is 115-136. The natural flowering period in Shenyang is from mid-October to early November. The self-compatibility index of chrysanthemum 'C038' was 0 when conventional artificial pollination was adopted.

[0057] B. The specific method of implementation is as follows:

[0058] Because 'C038' has 3 rounds of ligulate flowers, the stigmas of each layer of ligulate flowers are not uniformly developed. According to the actual development of each layer of ligulate flower stigmas, petal cutting, spraying of treatment liquid and pollination need to be carried out in 3 times. In mid-October, select the flower buds in the late stage of color development and list them. When the oute...

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Abstract

The invention belongs to the technical field of flower breeding, and particularly relates to a method for improving the self-compatibility of chrysanthemum. The method aims to overcome the inbred obstacle of the chrysanthemum by seeking an effective means so as to overcome the difficulty that the chrysanthemum cannot fructify through inbred, obtain a homozygous cultivated chrysanthemum genetic group by an inbred method and provide a material for researching the genetic rule of the chrysanthemum with important economic characters. The method comprises the following steps of: selecting a specific period of stigma development through microscopic examination of a magnifier; B, selecting unpolluted fresh pollen from a pollination inflorescence or other inflorescences of the same genotype; C, performing treatment solution atomization and pollination on a stigma; D, covering a bag on the pollinated inflorescence, and removing the bag in 8 to 10 days after the pollination is marked; and E, removing the un-pollinated buds and inflorescences, scissoring the pollinated flower heads by using scissors in about 45 to 60 days after the pollination, airing the flower heads in a ventilated place, and harvesting seeds. The method overcomes the inbred obstacle of the chrysanthemum, and improves the self-compatibility of the chrysanthemum so as to realize inbred fructification of the chrysanthemum and obtain the homozygous cultivated chrysanthemum genetic population by the inbred method.

Description

technical field [0001] The invention belongs to the technical field of flower breeding, and in particular relates to a method for improving the self-compatibility of chrysanthemums. Background technique [0002] Chrysanthemum (Dendranthema morifolium) is one of the four major fresh cut flowers in the world. It is famous all over the world. It is also a traditional famous flower in my country. It is favored by the people of our country. It has a cultivation history of at least 1600 years in our country and has important humanistic, economic and social values. . [0003] The selfing method can make the offspring of heterozygous genotype plants segregate in traits, and several homozygous genotypes with different genetics can be obtained through continuous selfing method, so that the genetic composition of the offspring population tends to be homozygous and stable, and then homozygous can be obtained . Obtaining the homozygous genotype is the basis for the study of biological g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
Inventor 祝朋芳吴月亮周广柱毛洪玉段玉玺
Owner SHENYANG AGRI UNIV
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