Effects Of Mineral Elements Such As Selenium On The Growth Of Pathogens Of Ginger Blast In Linquan County

The Ginger blast was always been a very common disease in the production of ginger,and once it happens,it can have devastating consequences.It is relatively difficult to control bacterial disease transmitted through the soil.Although selenium is not an essential element of plants,it has been widely recognized as a beneficial element;boron is one of the essential nutrients for the normal growth of plants;manganese is one of the trace elements essential for plant growth and development;zinc is also an important trace in plants.One of the elements.In recent years,through the research of many scholars around the world,they have an irreplaceable role in improving plant resistance or promoting plant growth.In order to explore the method of regulating Linquan County ginger and ginger sputum,this paper used the ginger of The Ginger blast disease in Linquan County as a sample to isolate the pathogen of ginger,and explored the effects of different concentrations of selenium,boron,manganese and zinc on the growth of pathogenic bacteria.In order to find safe,effective,low-toxic and low-residue green prevention and control technology,regulate the occurrence of Linquan County's The Ginger blast,and provide technical support for the development of ginger industry in Linquan County.The main findings are as follows:(1)When the concentration of selenium is less than 1.0 X 10-3 mol/L,the growth inhibition effect on the pathogen of The Ginger blast is slowly increased.When the concentration of selenium reaches 1.5×10-3 mol/L,the inhibition begins to stabilize.Manganese and zinc have certain inhibitory effects on the growth of pathogens of Ginger,and the inhibitory effect is increased with increasing concentration.When the concentration of manganese is increased to 2.5×10-3 mol/L,the inhibition begins to stabilize,and then the concentration of manganese is inhibited.The rate has only increased by a small margin.The inhibitory effect of zinc on the pathogen of Ginger was slowly increased with the increase of concentration.When the concentration reached 5.0×10-3mol/L,the inhibition rate reached 24.41%.The inhibitory effect of manganese and zinc ginger gill pathogen was not obvious.By increasing the concentration of the element,the suppression effect is only slightly increased.The inhibitory effect of boron on the pathogen of The Ginger blast was enhanced with the increase of concentration.When the concentration was 2.0×10-3mol/L,the inhibition effect was the most obvious.The inhibitory effect at 2.5×10-3mol/L was 3.0×10-3mol/L is close,the inhibitory effect of boron on the pathogen of The Ginger blast is stronger than that of manganese and zinc.(2)After treatment with 300mg/kg manganese and 500mg/kg zinc,the activity of POD,SOD and CAT in the pathogen of The Ginger blast pathogen was slightly inhibited,which inhibited the growth of The Ginger blast pathogen to a certain extent.The concentration of manganese promotes the spore germination and makes the disease more serious.When the content reaches a certain concentration,it will destroy the physiological function in the fine cells and affect the enzyme activity.After 3mg/kg of selenium,90mg/kg of boron After treatment,the activities of POD,CAT and SOD in the pathogen of The Ginger blast pathogen were lower than those in the control group,indicating that manganese,boron,zinc and selenium could affect the activity of POD,C AT and SOD in bacteria,thus affecting the active oxygen metabolism system of the pathogen of The Ginger blast.The membrane lipid peroxidation was enhanced to achieve the effect of inhibiting the growth of the pathogen of the ginger mites,and the inhibitory effects of boron and selenium on the pathogen of the ginger mites were observed.