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The objective of this study was to compare the costs of mechanical harvesting and grape manual in commercial property of “Santana do Livramento”, “Rio Grande do Sul” (RS) – Brazil. The study was conducted commercial vineyard, over four years (2013–2016), throughout this period we evaluated 154.9 ha on the mechanical harvesting of grapes and; 366.7 ha on the grapes of manual harvesting; for both types of collection were recorded all costs thereof, including annual fixed fees (depreciation + maintenance), obtaining at the end the amount of crop expressed in real per hectare; also calculated the minimum required area vineyard justify mechanical harvesting. The cost of manual harvesting was 133.3% higher than the value obtained for the mechanical harvesting the studied time interval. Obtained the area of 41.92 ha, as the point of balance between the costs of manual and mechanical harvesting (equivalent costs), above this area (41.92 ha), grape mechanical harvest is economically justified. All conditions tested, it was concluded that preliminary cost per hectare of grape mechanical harvesting is lower than the cost per hectare of manual harvesting and vineyard areas plausible mechanical harvesting exceeding 41.92 ha, justify the use of the collection system grape mechanics.

The experiment examined effects on the total chlorophyll and growth of vine rootstock ‘SO4’ under electrical stimulation. The study was conducted from December 2015 to March 2016 by the Core for Study, Research and Extension in Enology (NEPE2), in a greenhouse at the Federal University of “Pampa” (UNIPAMPA) – “Dom Pedrito” Campus. The Rootstocks ‘SO4’ were obtained in property located in the city of “Dom Pedrito” (RS, Brazil).The four treatments were: The first (T1) to control, no electric discharge; the second (T2) with an electric discharge of 0.02 mA for 5 seconds; followed by the third (T3) and fourth (T4) with times of discharge of 9 and 18 seconds respectively. The analyses were made using a chlorophyll meter. To measure chlorophyll content of the rootstock ‘SO4’ when subjected to electrical discharges with a 0.02 mA current during 9 seconds and 18 seconds applied once per week for twelve weeks.

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Copyright of Revista de Ciencias Agroveterinarias is the property of Revista de Ciencias Agroveterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)