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Sensory, yield and quality differences between organically and conventionally grown winter wheat

Arncken, Christine; Mäder, Paul; Mayer, Jochen and Weibel, Franco P. (2012) Sensory, yield and quality differences between organically and conventionally grown winter wheat. Journal of the Science of Food and Agriculture (J Sci Food Agric), 92, pp. 2819-2825.

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Online at: http://onlinelibrary.wiley.com/doi/10.1002/jsfa.5784/abstract

Summary

BACKGROUND: Consumers expect organic produce to have higher environmental, health and sensory related qualities than conventional produce. In order to test sensory differences between bio-dynamically, bio-organically and conventionally grown winter wheat (Triticum aestivum L., cv. Runal), we performed double-blinded triangle tests with two panels on dry wholemeal flour from the harvest years 2006, 2007 and 2009 and from two field replicates of the ‘DOK’ long-term farming system comparison field trial near Basel, Switzerland. Yield and quality parameters were also assessed.
RESULTS: Significant farming system effects were found for yield (up to 42% reduction in the organic system), thousand kernel weight, hectolitre weight and crude protein content across the three years. In the triangle tests one out of 12 pair-wise farming system comparisons (PFSCs) on wholemeal flour made from the different wheat samples showed significant sensory differentiation (between bio-dynamically and conventionally grown wheat). When all data from the three harvest years and two panels were aggregated, a statistically significant effect (P = 0.045) of PFSCs on the number of correct answers became evident.
CONCLUSIONS: Although testing of dry wholemeal flour was very challenging for panellists, we were able to show that sensory differences between farming systems can occur.
Copyright © 2012 Society of Chemical Industry


EPrint Type:Journal paper
Keywords:organic farming, sensory differences, triangle test, wheat quality, Bodenwissenschaften, Winterweizen, Systemvergleich, Getreidequalität, Bodenfruchtbarkeit, DOK
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Switzerland > Agroscope > ART - Reckenholz location
ISSN:online ISSN: 1097-0010
DOI:DOI 10.1002/jsfa.5784
Related Links:http://onlinelibrary.wiley.com/doi/10.1002/jsfa.5784/abstract
Deposited By: Arncken, Christine
ID Code:21155
Deposited On:15 Aug 2012 10:52
Last Modified:16 Jan 2014 17:17
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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