Total chlorophyll and growth of grape rootstock ‘SO4’ in answer to electrical stimuli
Federal University of Pampa (UNIPAMPA) – Campus Dom Pedrito – Bachelor's course in oenology, Street Vinte e Um de Abril n ∘80, Dom Pedrito, Rio Grande do Sul(RS), CEP: 96450-000, Brazil
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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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