title: Pre-anthesis CPPU low dosage application increases 'Hayward' kiwifruit weight without affecting the other qualitative and nutritional characteristics.
abstract: In 2008, in Central Italy, a low dosage of CPPU solution, 4 μL L(-1) (6 hL/ha), was sprayed on the canopy of vines of 'Hayward' kiwifruit, at the "break of sepals", about one week before anthesis, to study its effects on fruit weight/size and on qualitative and nutritional characteristics. At harvest, CPPU, with respect to control, significantly increased the fresh weight by about 12% (+12.6 g fruit(-1)) and consequently the yield per vine, without affecting fruit shape, firmness, dry matter (%), total soluble solids, glucose, fructose, sucrose, starch, citrate, malate, vitamin C and soluble and insoluble oxalic acid. After 3 months of storage, CPPU-treated kiwifruits and the control fruit showed no difference in dry matter content, fruit firmness and total soluble solids. The results indicate that a low dosage of CPPU applied in pre-anthesis can improve fruit weight/size without any negative effect on fruit qualitative and nutritional characteristics.
authors.affiliation: Centro Regional Universitario Oriente, Universidad Autónoma Chapingo, Huatusco, Veracruz, Mexico.
authors.forename: J G
authors.initials: JG
authors.lastname: Cruz-Castillo
authors.affiliation: Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Perugia, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Baldicchi
authors.affiliation: Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Perugia, Italy.
authors.forename: T
authors.initials: T
authors.lastname: Frioni
authors.affiliation: APOFRUIT, Aprilia, LT, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Marocchi
authors.affiliation: Istituto di Biologia Agroambientale e Forestale, CNR, Porano, TR, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Moscatello
authors.affiliation: Istituto di Biologia Agroambientale e Forestale, CNR, Porano, TR, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Proietti
authors.affiliation: Istituto di Biologia Agroambientale e Forestale, CNR, Porano, TR, Italy. Electronic address: alberto.battistelli@ibaf.cnr.it.
authors.forename: A
authors.initials: A
authors.lastname: Battistelli
authors.affiliation: Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Perugia, Italy. Electronic address: franco.famiani@unipg.it.
authors.forename: F
authors.initials: F
authors.lastname: Famiani
mesh_terms: D029042:Actinidia / Q000737:chemistry*; D001205:Ascorbic Acid; D005638:Fruit / Q000737:chemistry*; D010671:Phenylurea Compounds / Q000737:chemistry*
chemical_list: C000597774:N-(2-chloro-4-pyridyl)-N-phenylurea; D010671:Phenylurea Compounds; D001205:Ascorbic Acid
keywords: Actinidia deliciosa; Ascorbic acid; Carbohydrates; Citric acid; Cytofex; Forchlorfenuron; KT-30; Kiwifruit storability; Malic acid; Oxalic acid; Prestige