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Effect of fungicide application date against Sclerotinia sclerotiorum on yield and greening of winter rape

Author

Listed:
  • Tomáš Spitzer

    (Agrotest fyto, Ltd., Kroměříž, Czech Republic,)

  • Pavel Matušinsky

    (Agrotest fyto, Ltd., Kroměříž, Czech Republic,)

  • Zuzana Klemová

    (Agrotest fyto, Ltd., Kroměříž, Czech Republic,)

  • Jan Kazda

    (Department of Plant Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

In experiments with winter rape during 2004-2008, we examined the effectiveness of fungicides containing active ingredients based upon triazoles and SBI inhibitors (group A): flusilazole 250 g/l a.i., flusilazole 125 g/l a.i. + carbendazim 250 g/l a.i., and cyproconazole 120 g/l a.i. + carbendazim 300 g/l a.i. Fungicides based upon older and newer triazoles, strobilurins, and SDH inhibitors (group B) were also used: cyproconazole 80g/l a.i. + azoxystrobin 200 g/l a.i., prothioconazole 250 g/l a.i., prothioconazole 125 g/l a.i. + tebuconazole 125 g/l a.i., and boscalid 200 g/l a.i. + dimoxystrobin 200 g/l a.i. The application of group A fungicides against S. sclerotiorum during BBCH 65-69 growth stage had demonstratively higher effectiveness, while for group B the application date had no effect. The greening (or "stay-green") effect only occurred with group B. The correlation coefficient for greening effect and yield was R = -0.3033 for applications during BBCH 61-65 while it was R= -0.3542 for BBCH 65-69 stage, thus indicating a relatively weak relationship.

Suggested Citation

  • Tomáš Spitzer & Pavel Matušinsky & Zuzana Klemová & Jan Kazda, 2012. "Effect of fungicide application date against Sclerotinia sclerotiorum on yield and greening of winter rape," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 48(3), pages 105-109.
    • Handle: RePEc:caa:jnlpps:v:48:y:2012:i:3:id:12-2012-pps
    DOI: 10.17221/12/2012-PPS
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    Cited by:

    1. Jana Poslušná & Eva Plachká & Jana Mazáková, 2018. "Influence of selected fungicides registered in the Czech Republic for winter oilseed rape on in vitro Sclerotinia sclerotiorum mycelial growth," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 54(2), pages 101-110.
    2. Monika Tóthová & Kamil Hudec & Peter Tóth, 2020. "Sensitivity of Sclerotinia sclerotiorum to strobilurin fungicides in Slovakia," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 56(1), pages 13-17.

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