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Open AccessArticle

Insights into the Positive Effect of Pyraclostrobin on Sugarcane Productivity

1
Departamento de Biologia, Setor de Fisiologia Vegetal, Universidade Federal de Lavras, Lavras 37200-000, Brasil
2
Centro de Bioplantas, Universidad de Ciego de Avila, Ciego de Avila 65200, Cuba
3
Regional Jataí, Unidade Acadêmica Especial de Ciências Biológicas, Universidade Federal de Goiás, Jataí 75800-000, Brasil
*
Author to whom correspondence should be addressed.
Agronomy 2018, 8(7), 122; https://doi.org/10.3390/agronomy8070122
Received: 25 May 2018 / Revised: 13 July 2018 / Accepted: 16 July 2018 / Published: 18 July 2018
(This article belongs to the Special Issue Functional Metabolism in Crops/Agronomy)
Achieving high yields is a challenge for sugarcane producers due to the diverse environmental conditions to which the crop is subjected. In tropical and subtropical regions, where sugarcane is typically cultivated, crop diseases are common. This necessitates the development of disease management techniques. Among these techniques, chemical control is of particular significance due to the development of new antifungal agents, such as pyraclostrobin. For some crops, pyraclostrobin has a positive influence on yield due to its effects on plant physiology. The aim of this study was to evaluate the physiological responses and yield of three sugarcane cultivars treated with the fungicide, pyraclostrobin. The experiment was performed in a randomized block design (RBD) with a split-plot arrangement; the variables analyzed were the application or non-application of fungicide in the plots and, in the subplots, the evaluation times after fungicide application. Both the rate of photosynthesis and the antioxidant enzyme (Superoxide Dismutase, Catalase and Ascorbate Peroxidades) activity increased in plants treated with fungicide in comparison to untreated plants, and in the RB855156 cultivar the stomatal conductance, transpiration, and nocturnal respiratory rate were increased. Furthermore, application of pyraclostrobin increased stalk yield and the green biomass index in the RB855156 and RB86751 sugarcane cultivars. In certain cultivars of sugarcane, application of pyraclostrobin leads to an increased yield. View Full-Text
Keywords: physiological effect; strobilurins; yield; gas exchange; antioxidant enzymes; Saccharum officinarum physiological effect; strobilurins; yield; gas exchange; antioxidant enzymes; Saccharum officinarum
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Moreira Lopes, A.; Schumacher, P.V.; Terylene Pérez Martínez, A.; Paulino da Costa Netto, A.; Chalfun-Junior, A. Insights into the Positive Effect of Pyraclostrobin on Sugarcane Productivity. Agronomy 2018, 8, 122.

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