Bacillus cereus and preparation method and application thereof

Abstract

The invention discloses Bacillus cereus having a function of preventing wheat sharp eyespot and a preparation method and applications thereof. The strain Bacillus cereus 0-9 CCTCC No. M 209041 of the invention can biologically prevent and treat the wheat sharp eyespot, and the preparation method comprises the following steps: the strain Bacillus cereus 0-9 CCTCC No. M 209041 is subjected to expansion culture in a KMB liquid medium at the temperature of 28 DEG C and at 200 rpm to prepare a bacterial suspension; the wheat seed is soaked for 1h; and the treated wheat seed is sowed in the infected soil and a watering root treatment is carried out with the bacteria ferment liquor. The invention has the advantages that the strain of the invention is wheat endophytic Bacillus cereus bacteria, which can be massively cloned in the wheat Yumai 17, and has good prevention effect (82.86%) on the wheat sharp eyespot, stable effect and good popularization and application prospect.

Description

technical field The invention relates to a bacillus cereus, a preparation method of the bacillus cereus, and an application thereof in preventing and treating wheat sheath blight. Background technique Wheat sheath blight (wheatsharp eyespot) caused by Rhizoctonia cerealis infecting wheat is an important soil-borne disease, which is widely distributed in the Huanghuai winter wheat region, northwest spring wheat region and the middle and lower reaches of the Yangtze River wheat region in my country. , Seriously endanger the production of wheat, general fields can reduce production by 10% to 30%, seriously diseased fields can reduce production by more than 50%, and individual fields may even fail to harvest. At present, for wheat sheath blight, there is still a lack of effective disease-resistant varieties, and the prevention and control of the disease is mainly through chemical control methods. Chemical fungicides such as Li Kexiu, Shilashi, and triazoles are mainly used in pr...

AI Technical Summary

Problems solved by technology

In the current research on the use of endophytic bacillus to control wheat sheath blight, there is no report on the use of bacillus cereus

Images