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

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

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 3...

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Bibliographic Details
Published in:Plant protection science Vol. 48; no. 3; pp. 105 - 109
Main Authors: Spitzer, Tomáš, Matušinsky, Pavel, Klemová, Zuzana, Kazda, Jan
Format: Journal Article
Language:English
Published: Prague Czech Academy of Agricultural Sciences (CAAS) 01-01-2012
Czech Academy of Agricultural Sciences
Subjects:
Azoxystrobin
boscalid
Carbendazim
Correlation coefficient
Correlation coefficients
cyproconazole
dimoxystrobin
effectiveness
flusilazole
Fungicides
Greening
Growth stage
Inhibitors
Pesticides
Plant protection
prothioconazole
Rape
Sclerotinia sclerotiorum
strobilurin
Tebuconazole
Triazoles
Winter
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1212-2580
1805-9341
DOI:10.17221/12/2012-PPS