The Effects of Plastic Covering on Yield and Quality Varieties of Some Table Grapes in Alaşehir (Manisa)

Authors : Harun ÇOBAN

Pages : 101-103

View : 17 | Download : 28

Publication Date : 2004-12-25

Article Type : Research Paper

Abstract :Table grapes are usually grown under plastic cover or sheet for earliness. In this work, outdoor grown Cardinal, Yalova İncisi and Yuvarlak Çekirdeksiz insert ignore into journalissuearticles values(Round Seedless); table grape cultivars were covered with UV+IR insert ignore into journalissuearticles values(Ultra violet+Infra red); type of polyethylene insert ignore into journalissuearticles values(PE); between mid-february and mid-april, in Alaşehir insert ignore into journalissuearticles values(Manisa); conditions. Phenological stages like bud-burst, blooming, verasion, and ripening, and growth, yield and quality characteristics of the cultivars were determined. Plastic covering of grapevines of Cardinal, Yalova İncisi and Yuvarlak Çekirdeksiz insert ignore into journalissuearticles values(Round Seedless); markedly enhanced the dates of phenological stages and especially ripening for 27 days in Cardinal, for 29-30 days in Yalova İncisi and for 26-33 days in Yuvarlak Çekirdeksiz insert ignore into journalissuearticles values(Round Seedless); when compared with the outdoor ripening dates. Shoot lengths of plastic cov-ered vines were always longer at each measuring date than those of controls. Plastic covering had no significant effect on yield and quality characteristics of berries and clusters measured at the harvest time. Air temperatures were always higher under plastic covers than those of the controls.
Keywords : Vitis vinifera L Plastik örtü, erkenci, sofralık üzüm