This study was conducted during the two successive seasons 2015 and 2016 on "Crimson" grapevine grown in a private orchard at Nobariya district, Beheira governorate, Egypt. The vines were under the standard cultural practices, uniform, healthy and free of visible disorders. The vines were sprayed with one of the following treatments that included water (control), lysophosphatidylethanolamine (lisophos) at 200 ppm and 400 ppm, lisophos at 200 ppm + MgNo 3 at 1% (w/v), lisophos at 400 ppm + MgNo 3 at 1% (w/v), ABA (ProTone as the trade name) at 100 ppm and 400 ppm, the combination of ProTone at 100 ppm + MgNo 3 at 1% (w/v), at 200 ppm + MgNo 3 at 1% (w/v), in addition to MgNo 3 alone at 1% (w/v). The non-ionic surfactant Tween 80 was added to all treatments at 0.05% (v/v). Four vines per treatment were sprayed to the run off point by a hand sprayer on Aug. 1 st and 5 th during the two seasons, respectively. First sampling was done ten days after spray while the second sampling followed the first one by ten more days. The data provided evidences about the possibility of accelerating the veraison stage in a consistent manner especially in the second season. As shown by the color initiation at the first sample after ten days of spray and at harvest especially carotene and anthocyanin and the reduction of chlorophylls a and b in particular with the combinations of lisophos at 400 ppm plus MgNo 3 at 1% as well as ProTone at 200 ppm plus MgNo 3 at the same above concentration in addition to the significant increase in the TSS to acidity ratio at the first picking in both seasons. Moreover, juice acidity and tannins content were significantly reduced with the above two formulations and with the individual treatment of many other treatments at the first picking and at the final harvest such as lisophos at 200 ppm and 400 ppm and ProTone at 100 or 200 ppm. Meanwhile, berry size did not significantly vary among used treatments at the first sampling time but increased significantly by many treatments at the second picking. The main conclusion of this study can recommend using the formulation containing lisophos at 400 ppm plus magnesium nitrate at 1% (w/v) as well as ProTone at 200 ppm plus MgNo 3 at 1% to accelerate veraison and enhance the berries quality of "Crimson" grapevine under field conditions.
Due to its excellent adherence to the metal substrate, Hexamethyledisiloxan was employed in the present study to create transparent barrier coating films that protect metal artifacts from corrosion. The deposition procedure used radio frequency plasma enhanced chemical vapor deposition (RF-PECVD). Using scanning electron microscopy combined with energy dispersive X-ray (SEM-EDX) and Fourier-transform infrared spectroscopy (FT-IR), the surfaces of the deposited films were identified and characterized. Atomic force microscopy was used to examine surface topography and roughness (AFM). Water contact angle measurement was used to determine the hydrophobic property (WCA). Moreover, a spectroscopic ellipsometer was used to measure the film's thickness (SE). Following the Siloxane protective layer's PECVD deposition, colorimetric measurement (CM) was utilized to assess surface appearance alterations. Electr-ochemical impedance spectroscopy (EIS) was used to study how siloxane coatings for metal substrates protect against corrosion as a function of RF power and gas input composition. It was found that the siloxane thin film's adhesion characteristics to the silver-copper alloy substrate were affected by the substrate pretreatment process and the consumed power during the deposition process.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.