Verticillium dahliae 171 (Vd171) for preventing and treating cotton verticillium wilt and application of Vd171

A technology for Verticillium dahliae and cotton Verticillium wilt, applied in the field of phytopathology, can solve the problems of single formulation, poor control effect and the like, and achieve the effects of improved control effect and good control effect
CN102634461AActive Publication Date: 2012-08-15中农科创(河南)生物科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中农科创(河南)生物科技有限公司
Publication Date
2012-08-15

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Abstract

The invention relates to plant pathology and particularly relates to verticillium dahliae 171 (Vd171) and an application of the Vd171 in prevention and treatment on cotton verticillium wilt. On the basis of an attenuated strain of the cotton verticillium wilt, the Vd171 is obtained through separation, screening, identification and biological assay in a greenhouse. The Vd171 has a remarkable control function on the cotton verticillium wilt, and the preservation number of the Vd171 is CGMCC (China General Microbiological Culture Collection Center) N0.5903. The Vd171 can be cultured on a synthetic medium and is easy to be obtained and cultured, thus being beneficial to industrialization production as well as promotion and application. The Vd171 has a good control effect on the verticillium, and after the Vd171 is inoculated for four days, and Vd991 is inoculated, so that the cotton verticillium wilt control efficiency can reach 85.0%. The Vd171 has the remarkable control function on the cotton verticillium wilt, and compared with bacillus subtilis usually applied in a market, the control efficiency of the Vd171 is improved by about 50%, and the Vd171 does no harm to people, livestock, insects and crops and is environment-friendly.
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Description

technical field

[0001] The invention relates to plant pathology, in particular to Verticillium dahlia attenuated strain Vd171 capable of preventing and treating Verticillium dahliae and its application. Background technique

[0002] Cotton verticillium wilt is a soil-borne vascular disease caused by Verticillium dahliae, which is widely distributed in cotton-producing regions of the world. Since the 1990s, the disease has caused disasters in major cotton-producing areas in my country, with an annual occurrence area of ​​about 3 million hectares and an annual economic loss of about 1.2 billion yuan. It has become one of the important limiting factors for the development of cotton production. Due to the difficulty of crop rotation, the lack of disease-resistant varieties, and the lack of pesticides with good control effects, the prevention and control of Verticillium wilt in current production is almost blank.

[0003] Due to the co-evolution of the interaction with the host,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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