Effect of different reflective films on the fruit quality of'Huahong'apple
The 13-year-old Huahong/GM256/Shanstat with good growth and consistent growth was used as the test material,and the traditional non-degradable reflective film Ⅰ(T1),new degradable reflective film Ⅱ(T2)or new degradable reflective film Ⅲ(T3)were laid,and the canopy light radiation characteristics and fruit quality in the three stages after bag picking were measured with no reflective film as the control(CK),and the effect of the new reflective film on the fruit quality of'Huahong'fruit was explored.The results showed that the photosynthetic photon flux density and light intensity of the lower part of the tree(60 cm from the ground)could he increased by laying the reflective film,which was T3＞T2＞T1＞CK.It is also possible to increase the red-blue irradiance ratio,which is T2＞T3＞CK＞T1.Among them,reflective film Ⅰ can increase the light intensity in the lower part of the tree.Reflective film Ⅱ can increase the light intensity and significantly improve the ratio of red and blue radiation.Reflective film Ⅲcan significantly increase the light intensity and improve the ratio of red to blue irradiance.Laying reflective film Ⅰcan increase the content of titratable acid and anthocyanin in fruit.Laying reflective film Ⅱ significantly increased the anthocyanin content,promoted fruit coloration,significantly increased the soluble sugar content of fruit,decreased the titratable acid content of fruit,and had significant effect on vitamin C content of fruit.Laying reflective film Ⅲ can significantly increase the content of soluble solids,soluble sugars and titratable acids in fruits.After the fruit is picked from the bag,laying the reflective film can improve the light conditions and improve the quality of the fruit,among them,the reflective film Ⅱ has the best effect,significantly improves the quality of the fruit,compared with the traditional reflective film,the reflected light is stronger,the red and blue radiation illumination ratio increases,and the cost of manual treatment is also reduced,and the pollution of the land is reduced.
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