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Abstract Detail



Host/Plant Pathogen Interactions and Plant Health Management

Tamburic-Ilincic, Lily [1].

Effect Of Fungicides And Nitrogen On Yield, Quality And Diseases Of Hard Red Winter Wheat ‘Princeton’ In Ontario.

The objective of this study was to evaluate the effect of fungicides and nitrogen application on diseases, agronomic characteristics and quality of hard red winter wheat ‘Princeton’ in Ontario. The experiments were conducted at three locations in Ontario (Ridgetown, Inwood and Centralia) in 2012 and 2013. Treatments were arranged in a randomized complete block design with four replications. Two factors included three topdress nitrogen rates (75, 100, 125 kg N ha-1) and three fungicides: QUILT (azoxystrobin+propiconazole) applied at GS30 plus PROSARO (prothiconazole+tebuconazole) applied at GS65 or PROLINE (prothiconazole) applied at GS65. There were no interactions between nitrogen rate or fungicides application. Grain yield across locations ranged from 3.28 t ha-1 at Centralia in 2013 (without fungicides application plus 125 kg N ha-1) to 5.75 t ha-1 at Inwood in 2012 (after application of QUILT and PROSARO plus 125 kg N ha-1). Application of QUILT and PROSARO provided better protection against septoria leaf blotch (Septoria tritici) compared to plots where just PROLINE alone was applied due to application timing. In 2013, the deoxynivalenol (DON) level ranged from 6.8 ppm at Centralia to 0.8 ppm at Ridgetown and was significantly different in grain from plots without fungicide application compared to plots where fungicides were applied at all three locations. In addition, fungicides application increased test weight. There was no significant difference among protein level across the N level or fungicide treatments at any location.


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1 - University of Guelph, Ridgetown Campus, 120 Main St E, Ridgetown, ON, N0P2C0, Canada

Keywords:
Triticum aestivum L
nitrogen
fungicides
deoxynivalenol.

Presentation Type: Poster:Posters for Topics
Session: P
Location: Hall D/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 5:30 PM
Number: PPA036
Abstract ID:171
Candidate for Awards:None


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