2017
DOI: 10.1590/s0100-204x2017000600007
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Fungicide application can improve production of tomato coinfected with Begomovirus and Crinivirus

Abstract: -The objective of this work was to evaluate the effect of fungicide application on the concentration of Tomato severe rugose virus (ToSRV, Begomovirus) in the 'Mariana' hybrid tomato coinfected with ToSRV and Tomato chlorosis virus (ToCV, Crinivirus) and the progression of viral concentration by qPCR, as well as to quantify fruit yield and quality. Experiment I consisted in the application of fungicides after sowing (pretreatment): pyraclostrobin+metiram (P+M) (at 3 g L ); in experiment II, there was no appli… Show more

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Cited by 5 publications
(3 citation statements)
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“…In addition, the development of younger inoculated plants was affected more than that of older inoculated plants, which may have a proportionally greater impact on the yield, as shown by Guimarães et al . () for tomato plants infected with ToSRV + ToCV. Hybrid Mariana tomato plants inoculated with both viruses 15 days after transplanting showed 45.6% and 54.5% reductions in yield compared to healthy plants, in two independent experiments.…”
Section: Discussionmentioning
confidence: 99%
“…In addition, the development of younger inoculated plants was affected more than that of older inoculated plants, which may have a proportionally greater impact on the yield, as shown by Guimarães et al . () for tomato plants infected with ToSRV + ToCV. Hybrid Mariana tomato plants inoculated with both viruses 15 days after transplanting showed 45.6% and 54.5% reductions in yield compared to healthy plants, in two independent experiments.…”
Section: Discussionmentioning
confidence: 99%
“…Para tomateiros duplamente infectados com o ToSRV e com o ToCV, houve uma redução na produtividade de 52 a 69%, quando as plantas foram inoculadas aos 15 dias após o transplante e, de 44 a 59%, quando a inoculação ocorreu aos 30 dias após o transplante (Guimarães et al, 2017). Para o pimentão, plantas infectadas com o ToSRV, comparadas com plantas sadias, apresentaram uma redução na altura final de 13,8 a 18,4% e uma redução na produção de frutos comerciais de 28 a 44,6%, de acordo com as cultivares avaliadas (Rocha et al, 2012).…”
Section: Tomato Severe Rugose Virusunclassified
“…De acordo com o genótipo de tomateiro avaliado, plantas infectadas apresentaram uma redução no desenvolvimento, com base na massa fresca da parte aérea, variando de 2,9 a 71,9%, enquanto que a redução da produtividade variou de 0,2 a 52%, quando comparadas com tomateiros sadios (Mansilla-Córdova, et al, 2017). Em estudos conduzidos por Guimarães et al (2017) os danos provocados pela infecção mista do ToCV e do ToSRV em tomateiro foram influenciados pela idade das plantas no momento da inoculação. Plantas inoculadas precocemente, aos 15 dias após o transplante, tiveram a produtividade reduzida em até 69%, enquanto que nas plantas inoculadas tardiamente, aos 75 dias após o transplante, a redução na produtividade não passou de 4%.…”
Section: Tomato Chlorosis Virusunclassified