Ramularia leaf spot severity and effects on cotton leaf area and yield

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dc.creatorJoão Paulo Ascari
dc.creatorInês Roeder Nogueira Mendes
dc.creatorVanessa Costa da Silva
dc.creatorDejânia Vieira de Araújo
dc.date2016
dc.date.accessioned2026-07-07T04:32:37Z
dc.descriptionCotton monoculture favors the development of diseases such as ramularia leaf spot, which causes early defoliation and boll rotting, thus decreasing yield. This study aimed at evaluating the severity of ramularia leaf spot and its effects on cotton leaf area and yield. The experiment was conducted in a triple (4 x 3 x 2) factorial design, consisting of four cultivars (FM940GLT, FM944GL, TMG42WS and TMG43WS), three thirds of the plant (lower, middle and upper) and two management conditions (with and without fungicide application). To the variable area under the disease progress curve, the lowest values were observed in the upper third of the TMG42WS and TMG43WS cultivars, with the lower and middle thirds presenting the highest severity. The condition managed with fungicide and the upper third showed the lowest values for area under the disease progress curve. The leaf area was negatively affected by the ramularia leaf spot. Concerning the seed and fiber yields, the highest averages were observed for the middle third and the condition managed with fungicide. There was no statistical difference for cotton yield loss.
dc.formatapplication/pdf
dc.identifier1517-6398
dc.identifierhttps://www.redalyc.org/articulo.oa?id=253048335011
dc.identifier.urihttp://hdl.handle.net/123456789/464716
dc.languageen
dc.publisherUniversidade Federal de Goiás
dc.relationhttp://www.redalyc.org/revista.oa?id=2530
dc.rightsPesquisa Agropecuária Tropical
dc.sourcePesquisa Agropecuária Tropical (Brasil) Num.4 Vol.46
dc.subjectAgrociencias
dc.titleRamularia leaf spot severity and effects on cotton leaf area and yield
dc.typeartículo científico

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Pesquisa Agropecuária Tropical - Universidade Federal de Goiás