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The need to breed crop varieties suitable for organic farming, using wheat, tomato and broccoli as examples: A review

Lammerts van Bueren, E. T.; Jones, S.S.; Tamm, L.; Murphy, K.M.; Myers, J. R; Leifert, C. and Messmer, M. (2011) The need to breed crop varieties suitable for organic farming, using wheat, tomato and broccoli as examples: A review. NJAS - Wageningen Journal of Life Sciences, 58, pp. 193-205.

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Summary

It is estimated that more than 95% of organic production is based on crop varieties that were bred for the conventional high-input sector. Recent studies have shown that such varieties lack important traits required under organic and low-input production conditions. This is primarily due to selection in conventional breeding programmes being carried out in the background of high inorganic fertilizer and crop protection inputs. Also, some of the traits (e.g., semi-dwarf genes) that were introduced to address problems like lodging in cereals in high-input systems were shown to have negative side-effects (reduced resistance to diseases such as Septoria, lower protein content and poorer nutrient-use efficiency) on the performance of varieties under organic and low-input agronomic conditions. This review paper, using wheat, tomato and broccoli as examples, describes (1) the main traits required under low-input conditions, (2) current breeding programmes for organic, low-input agriculture, (3) currently available breeding and/or selection approaches, and (4) the benefits and potential negative side-effects of different breeding methodologies and their relative acceptability under organic farming principles.
© 2010 Royal Netherlands Society for Agricultural Sciences. Published by Elsevier B.V. All rights reserved.


EPrint Type:Journal paper
Keywords:Breeding, Organic farming, Nutrient-use efficiency, Resistance, Quality, Wheat, Tomato, Broccoli, Bodenwissenschaften, Saatgut, Pathologie, Pflanzenschutz und Biodiversität, Pflanzenzüchtung
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Crop husbandry > Production systems > Vegetables
Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Sustainability > Biodiversity
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Plant Protection and Biodiversity
ISSN:1573-5214
DOI:10.1016/j.njas.2010.04.001
Related Links:http://library.wur.nl/WebQuery/wurpubs/lang/392119, http://www.fibl.org/en/switzerland/research/soil-sciences.html, http://www.fibl.org/en/switzerland/research/plant-protection-biodiversity.html
Deposited By: Tamm, Dr. Lucius
ID Code:17861
Deposited On:18 Oct 2010 10:45
Last Modified:16 Dec 2011 12:11
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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