Effect Of Films On Environment, Growth And Fruit Quality Of Grape In Greenhouse

Five-year-old grape of Vitis vinifera L.Shifuluosha was studied in greenhouses. There were three treaments: The first was laying transparent plastic film during 20th December to 1st April;The second was laying reflector materials under canopy during 1st April to the berry maturing;The third was laying transparent plastic film during 20th December to 1st April and then laying reflector materials under canopy during 1st April to the berry maturing;and find out its effect on environment, growth and berry quality of grape.It showed that the treaments of laying transparent plastic film could increase the soil temperature and soil soisture comparing with control, which offered better environment for grape root.Comparing with control, the treament of laying reflector materials could increase the air temperature before flowering,and improve light intensity after flowering, which offered better environment for branches and leaves of grape. Comparing with control, the treaments of laying transparent plastic film could improve the shoot length and length between two knots,but it didn't change shoot dia and knot amount much. It showed that the treaments could increase total growth quantity and it was caused by the increasing of the shoot length.Comparing with control, the treaments of laying transparent plastic film could improve the area of leaves and leaves weight,but it didn't change specific leaf weight much before flowering.Comparing with control, the treaments of laying reflector materials could improve total soluble sugar and anthocyanin,but it didn't change berries weight and titratable acidity much.The results obtained in the experiments lead to the conclusion that it could increase the soil temperature, soil soisture and light intensity by laying film and then improve total growth quantity and berries quality .