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Effect of differential N and S competition 1 in inter- and sole cropping of Brassica species and lettuce on glucosinolate concentration

Stavridou, Eleftheria; Kristensen, Hanne L.; Krumbein, Angelika and Schreiner, Monika (2012) Effect of differential N and S competition 1 in inter- and sole cropping of Brassica species and lettuce on glucosinolate concentration. Journal of Agricultural and Food Chemistry, 60 (25), 6268-6278.

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Summary

Field and greenhouse pot experiments were conducted to evaluate the potential to use intercropping as an alternative method to increase glucosinolates in Brassicas by manipulating nitrogen (N) and sulphur (S) balance by intercropping with lettuce (Lactuca sativa L. var. capitata). In both experiments, four combinations of N and S fertilization were used. In the field experiment no effect of intercropping on the total glucosinolates was found as the growing lettuce was strongly inhibited by the presence of broccoli (Brassica oleracea L. var italic). The reduction in neoglucobrassicin in broccoli from intercropping was probably attributed to the lower N concentrations in broccoli florets. In contrast to this, in the pot experiment both total and individual glucosinolate concentrations in red leaf mustard(Brassica juncea L.) increased by intercropping. Fertilization treatments influenced glucosinolate concentrations in both experiments, and an N by S interaction was observed.


EPrint Type:Journal paper
Subjects: Crop husbandry > Crop combinations and interactions
Crop husbandry > Production systems > Vegetables
Farming Systems > Farm nutrient management
Research affiliation: Denmark > DARCOF III (2005-2010) > VEGQURE - Organic cropping Systems for Vegetable production
Denmark > AU - Aarhus University > AU, DJF - Faculty of Agricultural Sciences
DOI:dx.doi.org/10.1021/jf300091e
Deposited By: Stavridou, Dr. Eleftheria
ID Code:19596
Deposited On:04 Nov 2011 14:43
Last Modified:01 Aug 2012 07:31
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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