S343 : Effect of preharvest boron-calcium foliar spray and postharvest proveskia abrotanoides essential oil coating on storage life of vitis vinifera (var. Fakhri) in packaging films
Thesis > Central Library of Shahrood University > Agricultural Engineering > MSc > 2016
Authors:
Maryam Mollahasani [Author], [Supervisor], Hamid Reza Asghari[Advisor]
Abstarct: Grape is the most important horticultural crops in the word. This study was conducted as two experiment including first experiment whit three replication sprayed four times with calcium-boron concentrations (0, 20 and 40 mg-1) in a randomized complete block design. The second expriment factorial baxsed on completely randomized design with three replications including three factors, the first the levels of foliar in the first experiment, the second factor Essintial oil in three levels (0, 100 and 200 ppm) and the third factor polyethylene packaging applying 3 type of polymeric films including 20 and 40 microns (LDPE film) and Clay nano-composite film with a thickness of 20 micrometers and control (unpacked fruits) was performed.Traits was conducted during a 50-days under ±1ºc. The results of the first experiment showed that calcium- boron foliar application at the level of 40 milligrams per liter of the most significant effects on fruit set, the berry length, berry weight, calcium leaves content, petioles and boron leaves. The lowest percentage of weight loss, PH and the highest acidity and frirnnes were attained in the treatment clay nanocomposite films with foliar calcium-boron 40 mg per liter, respectively. The most effective treatment to presereve the appearance, loss abscission berry and browning were observed in clay nano-composite film with foliar calcium-boron 40 mg per liter treatment. The soluble solids and shrinkage berry and the most favorable in combination treatment Essintial oil (200 ppm) with clay nanocomposite film were observed. Fruits treated with calcium-boron foliar application of 40 miligrams per liter with clay nano-composite films maintained the chroma, changes in the color and L* in during storage time. The combination of clay nano-composite film treatments and foliar calcium-boron 40 mg per liter had the best effect inhibition of total protein and total phenol content change and enzyme guaiacol during storage were and the least amount of enzyme polyphenol oxidase the observed in clay nano-composite films in with Essential oil a concentration of 100 ppm and lowest electrolyte leakage in clay nano-composite films were obtained. In the study, foliar calcium-boron 40 mg per liter with clay nano-composite films showed the most favorable results.
Keywords:
#Shahroodi Table Grape #Plastic film clay nano-composite #Spray calcium-boron (40 ml per liter) Link
Keeping place: Central Library of Shahrood University
Visitor: