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A kind of Curvularia intertype strain and its application and herbicide

A technology of Curvus sp. and herbicide, which is applied in the field of Curvus sp. intermorph and its application and herbicide, can solve the problems of complex fermentation process, unfavorable popularization and application, insufficient herbicidal spectrum, etc., and achieves simple fermentation process, Environmentally friendly, fast weeding effect

Active Publication Date: 2019-11-05
HUNAN AGRICULTURAL UNIV
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Problems solved by technology

However, the herbicidal spectrum of these strains is not wide enough, and the fermentation process is complicated, which is not conducive to popularization and application.

Method used

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  • A kind of Curvularia intertype strain and its application and herbicide
  • A kind of Curvularia intertype strain and its application and herbicide
  • A kind of Curvularia intertype strain and its application and herbicide

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Embodiment

[0033] A kind of Curvularia intermedia bacterial strain, described Curvularia intermedia bacterial strain is named as mt-3, and it was deposited in the General Microorganism Center of China Committee for Culture Collection of Microorganisms on December 23, 2016, the The abbreviation of the depository institution is CGMCC, the address of the depository institution is No. 3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the deposit number is CGMCC NO.13376.

[0034] 1. Isolation of pathogenic fungi

[0035] The naturally diseased leaves of crabgrass in Hunan cotton field were collected, and the symptoms of plant disease were recorded. Cut tissue pieces from the junction of disease and health, sterilize the surface in 0.1% mercuric chloride solution for 3 minutes, rinse with sterile water for 3 times, place on PDA medium, and cultivate at a constant temperature of 28°C. Pick part of the hyphae from the edge, transfer them to a new PDA plate for culture, and obtain a...

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Abstract

The present invention provides a Curvularia intertype strain and its application. The Curvularia intertype strain is named mt-3, which was preserved in the General Microorganism Center of China Microbiological Culture Collection Management Committee on December 23, 2016. , the deposit number is CGMCC NO.13376. The curvularia intertype of the invention can be used as a microbial herbicide preparation in fields of crops such as corn and cotton. The present invention also provides a herbicide, the herbicide has simple ingredients, is environmentally friendly, simple to apply, has a wide herbicidal spectrum, and is harmless to crops such as corn and cotton, and is effective against crabgrass, goosegrass, The control effect of weeds such as foxtail, snakehead sausage and purslane has reached more than 75%, and the weeding effect is quick. It is a biological herbicide that can be put into use for a long time.

Description

technical field [0001] The invention belongs to the technical field of microbial engineering and weeding, and in particular relates to a strain of Curvularia intertype and its application and herbicide. Background technique [0002] Crabgrass (Digitaria sanguinalis) is one of the 18 kinds of malignant weeds recognized in the world. It mainly harms crops such as cotton, corn, sorghum, soybean, tobacco, and peanut. It also often occurs in orchards, vegetables, lawns, and horticultural crop fields. Crabgrass is widely distributed in tropical and temperate regions of the world. It has strong reproductive ability and stress resistance, fast growth rate and long growth cycle. The control of crabgrass mainly depends on chemical methods, but the long-term and large-scale use of chemical herbicides will cause environmental pollution and residual poison and phytotoxicity, and will also lead to the emergence of weed resistance. Therefore, there is an urgent need to explore non-chemica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/14A01N63/04A01P13/00C12R1/645
CPCA01N63/30C12N1/14C12N1/145C12R2001/645
Inventor 柏连阳罗坤杜桂萍刘开林周小毛刘祥英胡利锋刘敏
Owner HUNAN AGRICULTURAL UNIV
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