Broomrape-resistant improvement method for broomrape-infected sunflower variety

A sunflower and variety technology, applied in botany equipment and methods, horticulture, plant cultivation, etc., can solve the problems of variety change, loss of good characteristics, etc., and achieve the effect of low cost, less time-consuming, and easy improvement

Inactive Publication Date: 2019-02-12
新疆生产建设兵团第十师农业科学研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, changing the male parent or female parent will lead to a change in the breed, and it will no longer be the original breed, and many of the excellent characteristics of the original breed will be lost.

Method used

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  • Broomrape-resistant improvement method for broomrape-infected sunflower variety

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Experimental program
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Effect test

Embodiment 1

[0015] A method for improving resistance to Lietang of sunflower varieties sensitive to Lietang, comprising the following steps:

[0016] (1) The male parent of the sunflower hybrid is sown in the plots where the sunflower hybrids are serious all the year round, and the plants with parasitic sunflowers on the roots are cut off at the budding stage, and the resistant individual plants without parasitic sunflowers are left, and Remove the branches, and 2 days before flowering, use a 60-mesh nylon gauze bag to cover the top flower disc tightly to prevent bees from pollinating, let them self-pollinate, and further remove the flower discs of plants with parasitic roots when harvesting mature ;

[0017] (2) Mix the flower disc seeds harvested in step (1), sow them in the plots where the occurrence of serious problems occurs all year round, and build a breeding net room, cover the sunflowers with 60 mesh nylon gauze bags, prevent and control bee pollination, Before flowering, cut of...

Embodiment 2

[0021] A method for improving resistance to Lietang of sunflower varieties sensitive to Lietang, comprising the following steps:

[0022] (1) The male parent of the sunflower hybrid is sown in the plots where the sunflower hybrids are serious all the year round, and the plants with parasitic sunflowers on the roots are cut off at the budding stage, and the resistant individual plants without parasitic sunflowers are left, and Remove the branches, and 3 days before flowering, use a 60-mesh nylon gauze bag to cover the top flower disc tightly, and further remove the plant flower discs with parasitic roots at the ripe harvest;

[0023] (2) Mix the flower disc seeds harvested in step (1), sow them in the plots where the occurrence of serious problems occurs all year round, and build a breeding net room, cover the sunflowers with 60 mesh nylon gauze bags, prevent and control bee pollination, Before flowering, cut off the plants with parasitism on the roots, leave the resistant sing...

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Abstract

The invention discloses a broomrape-resistant improvement method for a broomrape-infected sunflower variety. The method comprises the following steps that (1) male parents of a sunflower hybrid cultivar are sowed in a plot where broomrape is serious all year round, plants of which the roots have parasitism of broomrape are cut off in the squaring stage, bagging is performed before flowering, and the plants of which the roots have parasitism of broomrape are further cut off when flower discs are mature and harvested; (2) flower disc seeds are mixed and sowed, a breeding net house is put up, sunflowers are covered in 60-mesh nylon yarn mesh bags, plants of which the roots have parasitism of broomrape are cut off before flowering, resistant plants without parasitism of broomrape are reserved,manual mixed pollination is carried out, the seeds obtained by harvest are used for field seed production, and the obtained hybrid cultivars are of a broomrape-resistant variety. The broomrape-resistant improvement method for the broomrape-infected sunflower variety has the advantages that through the broomrape-resistant improvement technology, the existing broomrape-infected variety is improvedinto the broomrape-resistant variety, and the excellent characteristics of the variety remain invariable.

Description

technical field [0001] The invention belongs to the technical field of sunflower breeding, and in particular relates to a method for improving resistance to Liedang of a sunflower variety sensitive to Liedang. Background technique [0002] Sunflower Liedang is a whole parasitic herbaceous plant in the Liedangaceae family. Its host is highly specialized and mainly harms sunflowers. After sunflowers are parasitized by sunflowers, they grow slowly, the stems are low and thin, the flower disks are thin and small, the arsenic grains increase, the resistance to other adverse conditions such as diseases and insect pests decreases, the yield and quality are greatly reduced, and the severely damaged flower disks wither and dry up. Plants die, resulting in extinction of sunflowers. Because the occurrence period of sunflower row is irregular, it can occur from sunflower budding to maturity, and sunflower row has already completed its parasitism to sunflower before it grows out of the ...

Claims

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Application Information

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IPC IPC(8): A01G22/00
CPCA01G22/00
Inventor 陈贵红陈燕芳刘琰军王跃琴申诗法黄烁
Owner 新疆生产建设兵团第十师农业科学研究所
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