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Organic vs. conventional field trials: the effect on cauliflower quality

Lo Scalzo, R.; Iannoccari, T.; Genna, A.; Di Cesare, L. F.; Viscardi, D.; Ferrari, V. and Campanelli, G. (2008) Organic vs. conventional field trials: the effect on cauliflower quality. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Summary

Cauliflowers represented nearly 10% of the total vegetable production in EU and are rich sources of phytonutrients which positively affect human health. The aim of this work was to evaluate the effect over 6 years of organic (OR) and conventional (CO) field trials on 16 different genotipes of cauliflower, employing crop rotation. Yield of production and quality-nutraceuticals characteristic (dry matter, soluble solid residue, pH, titratable acidity, vitamin C, total polyphenols index, thiols content, antioxidant potential and main volatiles) were determined. Yield and florets weights gave a significant decrease in OR (about 25% on total average) respect to CO. The differences in DM, Soluble Solids, pH and total acidity between each OR and CO genotipes were negligible, don’t showing a quality loss in OR-grown cauliflowers. The vit C content was higher (16% on total average) in OR respect to CO. The total polyphenol index and the thiols content resulted slightly higher in OR, hence the difference resulted not significant with CO fields. The antioxidant profile showed high indexes in OR-grown cauliflowers, but the differences with CO resulted not significant. As regards the volatile amounts, the total average difference between OR and CO resulted not significant, with a difference for the single samplings: 4 resulted higher in CO and 2 resulted higher in OR-grown plants. The most important objective of OR management is to prevent quality loss by the produce respect to the CO one, and it seems that the present experiments meet this objective, with the exception of productivity.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:cauliflower, organic, conventional, rotation, phytochemicals,quality
Subjects: Food systems > Food security, food quality and human health
Crop husbandry > Crop combinations and interactions
Crop husbandry > Production systems > Vegetables
Research affiliation: Italy > CRA - National Council of Agricultural Research
International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 2.4 Vegetable production
Deposited By: Lo Scalzo, Dr Roberto
ID Code:11758
Deposited On:09 Oct 2008
Last Modified:12 Apr 2010 07:35
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674

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