Effects of plant growth regulators on yield and fruit quality of'Huizao'jujube
In order to explore the effects of different plant growth regulator combinations on the yield and quality of'Huizao'jujube,find out the suitable formula,and provide technical guidance for the efficient and high-quality production of'Huizao'jujube.In this experiment,four kinds of agents were selected for different combinations of compound application,and three times of spraying were carried out in the young fruit period of jujube fruit,and the effects of spraying on the yield,quality,endogenous hormones and other indicators were analyzed.The results showed that the compound treatment increased the transverse and longitudinal meridians of the fruit,single fruit weight and single fruit yield,significantly reduced the fruit shape index of'Huizao',and contributed to the increase in actual production.Spraying 0.25 mmol/L SA combined with 30 mg/L DA-6 could significantly increase the contents of total sugar,reducing sugar,fructose and vitamin C in'Huizao'fruit,and significantly reduce the cellulose content in fruit.The effects of the other two compound treatments were different from those of 0.25 mmol/L SA+30 mg/L DA-6,which significantly reduced the contents of total sugar,reducing sugar,starch,cellulose and vitamin C in fruits.The results of principal component analysis showed that 0.25 mmol/L SA+30 mg/L DA-6+0.01 g/L BR and 0.25 mmol/L SA+30 mg/L DA-6+15 mg/L HS treatments were located in the first and second places,respectively.In summary,0.25 mmol/L SA+30 mg/L DA-6+0.01 g/L BR treatment had the best comprehensive effect on the yield and quality of jujube.