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Chemical crossbred agent composition, its using method and application

A technology of chemical hybridization agent and composition, applied in the direction of botanical equipment and methods, applications, biocides, etc., can solve the problems of no practical application value, pollution, poor stability, etc.

Inactive Publication Date: 2004-09-01
陕西省杂交油菜研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But MG 1 and MG 4 The detasseling effect is affected by the environment of the rapeseed development level, the detasseling is not thorough enough, and the stability is poor
In addition it contains toxic component arsenic, although the content of arsenic in edible oil does not exceed standard (0.1mg / kg), long-term use also can cause people's unsafe, and the total sterile plant rate that it produces is only 60%-80% %
MG 2 There is a certain amount of phytotoxicity after different concentrations of treatment, resulting in severe closed buds and dead plants, making it difficult to pollinate
GA 3 Expensive and has no practical application value in chemical hybrid seed production
The hybridization agent EN has only been initially reported by Liu Yuxia et al. (Journal of Northwest Agricultural Science, 1999, 8 (4): 60-62), and its male-killing effect can reach a sterile rate of 100%, and a sterility rate of more than 95%. How it affects the fertility of rapeseed throughout the flowering period, how sensitive different genotype varieties are to it, and issues such as toxic residues and pollution have not been reported, nor have they been applied in production

Method used

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  • Chemical crossbred agent composition, its using method and application
  • Chemical crossbred agent composition, its using method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] This example studies the effect of dosage on the andricidal effect. The chemical hybridization agent composition used in the test consists of:

[0059] Methyl 2-[3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-3-methylureidosulfonyl]benzoate: 70%

[0060] Wet spreading agent: Sodium Lauryl Sulfate 3.5%

[0061] Dispersant: β-Naphthalene Sulfonate Sodium Acid Carboxylate 5.0%

[0062] Thickener: Sodium Hydroxycellulose 0.5%

[0063] Disintegrant: potassium tripolyphosphate 4.0%

[0064] Soluble starch: 5.0%

[0065] Filler makes up to 100%

Embodiment 2

[0069] This example studies the impact of the spraying period on the andricidal effect. Considering the duration of andricidal effect of SX-1, 1.9 mg / L of SX-1 was used to spray pollen mother cells from meiosis to uninucleate stage, and then one treatment every 5 days until the pollen maturity stage, a total of 4 4.48 meters per treatment period 2 , 12,000 seedlings / 667 meters 2 . The test results are listed in Table 2.

[0070]

[0071] The results showed that the spraying of oilseed rape from pollen mother cell meiosis to pollen maturity stage had the malecidal effect, but the application effect was the best at the initial stage of uninucleation and the stage of uninucleation, and the total sterile plants of the two varieties reached more than 98%. , K407 remained 100% sterile until the final flowering, and the sterile plant rate of Shan 3B was also greater than 92%. From the shape of the plant population, when the plot reaches the budding stage, the spraying e...

Embodiment 3

[0073] This example studies the effect of the number of sprays on the andricidal effect. Rapeseed is an infinite inflorescence, and its flower buds differentiate in different order during the development process, so the dosage and frequency of application directly affect the induction effect, duration and severity of SX-1 on male sterility of rapeseed. Therefore, in the mononuclear stage, 1.9 mg / L was used only once as a control; in the mononuclear stage, 1.0 mg / L and 1.6 mg / L of SX-1 were sprayed for the first time, and 8-10 days later, 0.6 and 0.9 , 1.0 mg / L of SX-1 was sprayed for the second time. Each spraying dose is 42.5 kg / 667 meters 2 , a total of 7 treatments, the test results are listed in Table 3.

[0074]

[0075] The results showed that the good effect of 100% sterility could be obtained by spraying the control once with 1.9 mg / L, but 5.4% of the sterile plants still had fine powdered flowers and fertile flowers in the later stage. In the treatment of...

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Abstract

The invention relates to a rape chemical hybridization agent composition and uses thereof, wherein the composition (SX-1) contains active constituent of 2-[3-(4- methoxy-6- methyl-1,3,5- triazine-2-group)-3- methyl carbamido sulfonyl] methyl benzoate, aerosol, emulsifying agent, thickening agent, crumbling agent and soluble starch. The invention also relates to the method of use and application in rape chemical hybridization of the composition.

Description

[technical field] [0001] The invention relates to a chemical hybridization agent composition, its usage method and its application in rapeseed. [Background technique] [0002] The use of heterosis is an extremely effective way to improve crop yield, quality and resistance, and it is also the focus of various crop breeding research. Heterosis has been widely used in crops such as corn, sorghum, rice and rapeseed, and has achieved remarkable achievements. [0003] At present, there are mainly five methods for the research on the utilization of heterosis in rapeseed at home and abroad, namely, cytoplasmic (CMS) male sterility, nuclear (GMS) male sterility, chemical hybridization agent (CHA) induced male sterility, and self-incompatibility. And line (SI), inbred slow line and so on. Among them, the CMS, GMS and CHA pathways have been really successful and have been demonstrated and applied in large-scale production in the research on the utilization of heterosis in rapeseed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01N47/28
Inventor 李永红李殿荣李建厂田建华何振才穆建新
Owner 陕西省杂交油菜研究中心
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