Impact of disease severity on infected bunches upon a yield of grape variety Vranec, caused by Plasmopara viticola (Berk. & M.A. Curtis) Berl and De Toni
Department for Plant and Environmental Protection, Faculty of Agriculture, Goce Delcev University, R. North Macedonia,89 BP 2000 Stip, Goce Delcev, Macedonia.
Research Article
GSC Biological and Pharmaceutical Sciences, 2023, 23(02), 121–128.
Article DOI: 10.30574/gscbps.2023.23.2.0194
Publication history:
Received on 08 April 2023; revised on 15 May 2023; accepted on 18 May 2023
Abstract:
Impact of disease severity on infected bunches upon a yield of grape variety Vanec, caused by Plasmopara viticola (Berk. & M.A. Curtis) Berl. & De Toni., every year causes damage to the yield of vines by infection the bunches while they are still unripe. It is essential to assess the severity of Downy Mildew in vineyards to predict yield loss accurately. The software platform 'image J' was used to detect and quantify the disease severity by measuring infected berries relative to healthy tissue. Regression analysis was used as a statistical method to predict yield loss. Plasmopara viticola was monitored in 2022 to find a rational solution to build a Yield Loss Forecast Model. The results of theoretical assumptions compared with actual field situations show that Yield Loss Forecasting Model within the allowed statistical range approximately predicts the yield loss of the control variant.
Keywords:
Plasmopara viticola; Disease severity; Regression analysis; Yield Loss Forecasting Model
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Copyright © 2023 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0
