The Effect Of Growth Regulators And Leaf-fruit Ratio Of Bearing Shoots On Fruit Development And Quality Of Kiwifruit "Hongyang"

The experiment is done on 5-year-old Hongyang Kiwifruit tree in Ya'an,Sichuan.Its growth,quality and storability of fruit with different leaf-fruit ratio and soaking in different solution of GA₃.CPPU and ZZ(made in our lab) after 15 days of blooming is studied.The aim of the study is to find a best leaf-fruit ratio and regulator solution to elevate the quality of kiwifruit and help people to grow it better.The outcome showed that:(1) The kiwifruit shoot is made up with short spur,spur and long shoot which is take 70%, 14.8%,and 12.3%respectively.The main product is come from the spur and long shoot.(2) Hongyang Kiwifruit vertical and horizontal growth track double S-curve,the whole growth period of two growth peaks.Different concentrations of GA₃,CPPU and ZZ, as well as to adjust the use of leaf-fruit ratio has not changed Hongyang Kiwifruit development trend of its own.(3) Hongyang Kiwifruit dry,fresh weight with the increase in GA₃ concentration increased,150mg/L to deal with the effects of so obvious;CPPU and ZZ to deal with a further increase in concentration decreased,showing a high concentration inhibited the increasing of weight GA₃,CPPU and ZZ reduce the hardness of fruit in varying degrees,20mg/L CPPU is particular.(4) GA₃ can increase fruit shape,improve fruit quality,and have no adverse effects in surface appearance of the fruit and Core;CPPU and ZZ have significant impact in increasing yield of Hongyang Kiwifruit,but reduced fruit shape index,and spots in fruit are obviously,rough skin,hollowing,so,it seriously affecting the appearance quality of fruit。High concentrations of CPPU and ZZ to reduce the nutritional quality of fruit,hardness,thus reducing the commercial quality.CPPU can be used to replace the GA₃ and ZZ,or the use of low concentration to overcome the deficiencies alone.(5) GA₃ for improving the internal quality of fruit,to show the treatment effect increased with the concentration and the trend of increased,10,20 mg/L CPPU and address issues of C₃ acid content,lower fruit sugar,sugar acid ratio and protein content(6) The higher of the leaf-fruit ratio,the better of the weight,diameter,length and quality of kiwifruit when the leaf-fruit ratio that ranges from 1/1-6/1.