Effect of laser supplement light on the development and quality formation of Chi-nese bayberry
25-year-old Dongkui Chinese bayberry was used as the experimental material to set up a test with treatments of different ratios of red and blue light of laser supplement light,including 9∶1 and 4∶1.Light was supplemented for 13 h per day on June 8(whitening period),June 28(turning red period),and July 8(matu-ring period)of 2022,respectively,with no supplement light as the control.The single fruit weight,the fruit vertical and lateral diameters,and the contents of total sugars,total acids,glucose,fructose,sucrose,malic acid,citric acid,vitamin C,total flavonoids,total phenols,total amino acids and anthocyanins were deter-mined and compared.The results showed that supplement light in whitening period could promote the fruit growth,with single fruit weight,vertical and lateral diameters larger than that of control,but the glucose con-tent was lower than that of the control.Supplement light in turning red period significantly increased the con-tent of glucose,anthocyanins,total sugars,and total amino acids,while reduced the content of total acids and malic acid.The treatment of supplement light in the maturing period had no significant effects on the vertical and lateral diameters of the fruit,but decreased the contents of vitamin C,total amino acids,total acids,malic acid,and citric acid compared with the control,and significantly increased the content of total sugars,glucose,fructose,and anthocyanins.Throughout the entire fruit development period,under the treatment of supple-ment light,the single fruit weight,vertical and lateral diameters,the content of total sugars,fructose,glu-cose,sucrose,and anthocyanins were gradually increased during the development of the fruit,and the malic acid content decreased first and then increased,while the total acids,citric acid,vitamin C,total flavonoids,total phenols,and total amino acids contents were decreased.In addition,supplement light with red and blue ratio of 4∶1 in whitening and turning red stages had a significant impact on fruit quality.In maturing period,the comprehensive quality of the fruit was better under supplement light with red and blue ratio of 9∶1.In summary,supplement light is beneficial for the improvement of fruit quality.In the actual production,the ap-propriate supplement light should be selected as required to effectively control the fruit growth and develop-ment of bayberry in protected cultivation.
Chinese bayberrysupplement lightmaturing periodred and blue light ratiosingle fruit weighttotal acidstotal sugars
万方数据
维普
