Use of plant growth regulators in the conservation of grapes “Italy” as aids in post-harvest

Abstract. Despite the vine adaptation to different soil types, most are found in soils with low nutrient supply, requiring corrections. The organic fertilizer facilitates the absorption of nutrients and improve soil structure. The objective was to evaluate the effect of organic fertilization with bovine and ovine manure on growth and totalchlorophyll content of 'Merlot' vines grafted on three different rootstocks. The experiment was conducted by the Nucleus of Study, Research and Extension in Oenology (NEPE 2 ) with the variety 'Merlot' VCR1 clone. The treatments were applied in the rootstock '161.49' 420-A 'and' Paulsen 1103', and used manure of bovine and ovine origin, totaling 12 treatments. Were evaluated the plant height (cm) and total chlorophyll (Falker clorofiLOG R ). The treatments at the rootstock 'Paulsen 1103' showed greater height of 'Merlot' clone VCR1, followed by the rootstock '161.49' and '420A'. But the treatments with the rootstock 'Paulsen 1103' showed less chlorophyll in the leaves of 'Merlot' clone VCR1 compared to other treatments. Preliminarily itwas concluded that the use of manurefrom bovine and ovine origin on the vine 'Merlot' clone VCR1 on the rootstocks 'Paulsen 1103', '420A' and '161.49', present in the leaves higher total chlorophyll content.

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“…It was held the analysis of variance (ANOVA) and when necessary the comparison test of Tukey averages at 5% of probability [9].…”

Section: Methodsmentioning

confidence: 99%

Fertilizer of bovine and ovine origin in ‘Merlot’ vines in Dom Pedrito-RS

et al. 2016

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“…The design used was randomized blocks with four replications and 20 plants per plot. The results were submitted to analysis of variance (ANOVA) and the averages were compared by the comparison test averages of Tukey at 5% probability [4][5][6].…”

Section: Methodsmentioning

confidence: 99%

Defoliation in ‘Pinotage’ during the harvests 2014/15 and 2015/16 in Dom Pedrito-RS

et al. 2016

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The objective of this study was to evaluate the effect on must from defoliation in 'Pinotage' in a property in the region Dom Pedrito, conducted in espalier and from East / West direction. The work was performed by the Nucleus of Study, Research and Extension in Oenology (NEPE 2 ); in 2014/2015 and 2015/2016 harvests. The treatments were: T1 -control; T2 -Defoliation in thenorth; T3 -Defoliation in the south and; T4 -Defoliation South and North. The response variables were analyzed by infrared spectrometry fourier transform (FTIR); these analyzes in the must were: total soluble solids (TSS) in • Brix, pH, potassium and gluconic acid. The experimental design was a randomized block design with four replications and 20 plants per plot. The results were submitted to analysis of variance (F test) and multiple comparison of averages by Tukey test at 5% probability. TSS is kept equal in the 2014/15 crop, but in the 2015/16 season were different and the treatment T4 (Defoliation North and South); significantly higher, followed by treatment T3 (Defoliation to the south).

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“…These phenomena can be reduced by technological approaches that help to inhibit respiration processes, as a result of which metabolic activity decreases and the organoleptic properties of grapes are preserved. One of these technological approaches is the use of various growth regulators in aerosol treatment in the post-harvesting period [1,2,3,4].…”

Section: Introductionmentioning

confidence: 99%

The effect of aerosol treatment with calcium-based preparation on quality of table grape cultivar during storage

et al. 2021

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The main problems of grape storage are berry dehydration and rot. One of the solutions to reduce rot and preserve the quality of grapes during storage is the use of aerosol treatment with calcium content before storing. The aim of the study was to evaluate the effect of physiologically active substances based on calcium in various concentrations on the quality and organoleptic characteristics of table grape cvs. ‘Italia’ during long-term storage. The effectiveness of the studied systems of treatment was evaluated according to the content of sugars and titratable acids, the activity of the redox enzymes of polyphenol oxidase and peroxidase, weight loss of bunch and organoleptic properties. The greatest effectiveness established by using preparation of Master Green Ca, Brentax KCa, and Brentax Ca (in concentration 150g / 20l). Experimental treatments significantly decreased the weight loss of bunch (less than 4%), and preserved organoleptic properties of berry at a high level (8.2-8.9 points). Decrease in the activity of oxidative enzymes had a positive effect on the quality of table grapes and contributed to its better preservation. The data obtained make it possible to rationalize the system of long-term storage of grapes by using of aerosol treatment with calcium-based preparation.

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Use of plant growth regulators in the conservation of grapes “Italy” as aids in post-harvest

Cited by 8 publications

References 8 publications

Fertilizer of bovine and ovine origin in ‘Merlot’ vines in Dom Pedrito-RS

Fertilizer of bovine and ovine origin in ‘Merlot’ vines in Dom Pedrito-RS

Defoliation in ‘Pinotage’ during the harvests 2014/15 and 2015/16 in Dom Pedrito-RS

The effect of aerosol treatment with calcium-based preparation on quality of table grape cultivar during storage

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