Effect of Sodium Hypochlorite Disinfection Time under LED Red and Blue Light on the Growth and Yield of Barley Seedlings in Hydroponic Culture
In order to solve the problem of mildew and rot during hydroponic barley seedling production,this experiment studied the influence of different disinfection time on the growth and yield of barley seedling under the premise of selecting 2%sodium hypochlorite as disinfection reagent.The test was conducted under LED red and blue light environment.The light quality ratio was R/B =4/1,the light intensity was set to200 μmol·m-2·s-1,the photocycle was set to16/8 h,and the disinfection time was 80 min,60 min,40 min and 20 min respectively,which were recorded as T80,T60,T40 and T20.Four replicates per process.The results showed that hydroponic barley seedlings produced the least number of molds when the disinfection time was 40 min,which was the best for the growth and yield improvement of barley seedlings.
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