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Relationships between nitrogen, dry matter accumulation and glucosinolates in Eruca sativa Mills. The applicability of the critical N[O.sub.3]-N levels approach

Background and Aims Rocket salad (Eruca sativa Mills) is one of the major leafy vegetables produced worldwide and has been characterized as a rich source of chemoprotective glucosinolates (GSL). The relationship between N fertilization and the resulting plant biomass and N status with GSL quantity a... Full description

Journal Title: Plant and soil 2012-05-01, Vol.354 (1-2), p.347
Main Author: Omirou, Michalis
Other Authors: Papastefanou, Chara , Katsarou, Dimitra , Papastylianou, Ioannis , Passam, Harold C , Ehaliotis, Constantinos , Papadopoulou, Kalliope K
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Springer
ID: ISSN: 0032-079X
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recordid: cdi_gale_infotracacademiconefile_A362168373
title: Relationships between nitrogen, dry matter accumulation and glucosinolates in Eruca sativa Mills. The applicability of the critical N[O.sub.3]-N levels approach
format: Article
creator:
  • Omirou, Michalis
  • Papastefanou, Chara
  • Katsarou, Dimitra
  • Papastylianou, Ioannis
  • Passam, Harold C
  • Ehaliotis, Constantinos
  • Papadopoulou, Kalliope K
subjects:
  • Vegetables
ispartof: Plant and soil, 2012-05-01, Vol.354 (1-2), p.347
description: Background and Aims Rocket salad (Eruca sativa Mills) is one of the major leafy vegetables produced worldwide and has been characterized as a rich source of chemoprotective glucosinolates (GSL). The relationship between N fertilization and the resulting plant biomass and N status with GSL quantity and quality in rocket leaves was examined. Methods A pot experiment was conducted, applying ten different N-rates and destructive sampling was carried out 15, 30 and 45 days after transplanting (DAT). The Mitscherlich equation was used to establish N[O.sub.3]-N critical levels at each growth stage and as an indicator of N demand for relative maximum dry matter accumulation and glucosinolate content and composition was determined. Results Glucosinolate content was significantly influenced by N rate, growth stage and their interaction. Different GSL types showed dissimilar responses to N fertilization: aliphatic GSLs were significantly reduced under increased N rates whereas indole GSL showed the reverse. Under excess N fertilization (>1.04 g/plant), dry matter accumulation remained constant, N[O.sub.3]-N was significantly increased and total GSL content was significantly reduced, factors that could lead to an anticipated product quality decline. Conclusions The application of the critical N[O.sub.3]-N level approach used to identify optimal N fertilization rates for plant growth could serve as means to obtain optimized GSL content in the edible plant parts. Keywords Eruca * Glucosinolates * N critical levels * Nitrate environmental pollution * Plant product quality
language: eng
source:
identifier: ISSN: 0032-079X
fulltext: no_fulltext
issn:
  • 0032-079X
  • 1573-5036
url: Link


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titleRelationships between nitrogen, dry matter accumulation and glucosinolates in Eruca sativa Mills. The applicability of the critical N[O.sub.3]-N levels approach
creatorOmirou, Michalis ; Papastefanou, Chara ; Katsarou, Dimitra ; Papastylianou, Ioannis ; Passam, Harold C ; Ehaliotis, Constantinos ; Papadopoulou, Kalliope K
creatorcontribOmirou, Michalis ; Papastefanou, Chara ; Katsarou, Dimitra ; Papastylianou, Ioannis ; Passam, Harold C ; Ehaliotis, Constantinos ; Papadopoulou, Kalliope K
descriptionBackground and Aims Rocket salad (Eruca sativa Mills) is one of the major leafy vegetables produced worldwide and has been characterized as a rich source of chemoprotective glucosinolates (GSL). The relationship between N fertilization and the resulting plant biomass and N status with GSL quantity and quality in rocket leaves was examined. Methods A pot experiment was conducted, applying ten different N-rates and destructive sampling was carried out 15, 30 and 45 days after transplanting (DAT). The Mitscherlich equation was used to establish N[O.sub.3]-N critical levels at each growth stage and as an indicator of N demand for relative maximum dry matter accumulation and glucosinolate content and composition was determined. Results Glucosinolate content was significantly influenced by N rate, growth stage and their interaction. Different GSL types showed dissimilar responses to N fertilization: aliphatic GSLs were significantly reduced under increased N rates whereas indole GSL showed the reverse. Under excess N fertilization (>1.04 g/plant), dry matter accumulation remained constant, N[O.sub.3]-N was significantly increased and total GSL content was significantly reduced, factors that could lead to an anticipated product quality decline. Conclusions The application of the critical N[O.sub.3]-N level approach used to identify optimal N fertilization rates for plant growth could serve as means to obtain optimized GSL content in the edible plant parts. Keywords Eruca * Glucosinolates * N critical levels * Nitrate environmental pollution * Plant product quality
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descriptionBackground and Aims Rocket salad (Eruca sativa Mills) is one of the major leafy vegetables produced worldwide and has been characterized as a rich source of chemoprotective glucosinolates (GSL). The relationship between N fertilization and the resulting plant biomass and N status with GSL quantity and quality in rocket leaves was examined. Methods A pot experiment was conducted, applying ten different N-rates and destructive sampling was carried out 15, 30 and 45 days after transplanting (DAT). The Mitscherlich equation was used to establish N[O.sub.3]-N critical levels at each growth stage and as an indicator of N demand for relative maximum dry matter accumulation and glucosinolate content and composition was determined. Results Glucosinolate content was significantly influenced by N rate, growth stage and their interaction. Different GSL types showed dissimilar responses to N fertilization: aliphatic GSLs were significantly reduced under increased N rates whereas indole GSL showed the reverse. Under excess N fertilization (>1.04 g/plant), dry matter accumulation remained constant, N[O.sub.3]-N was significantly increased and total GSL content was significantly reduced, factors that could lead to an anticipated product quality decline. Conclusions The application of the critical N[O.sub.3]-N level approach used to identify optimal N fertilization rates for plant growth could serve as means to obtain optimized GSL content in the edible plant parts. Keywords Eruca * Glucosinolates * N critical levels * Nitrate environmental pollution * Plant product quality
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titleRelationships between nitrogen, dry matter accumulation and glucosinolates in Eruca sativa Mills. The applicability of the critical N[O.sub.3]-N levels approach
authorOmirou, Michalis ; Papastefanou, Chara ; Katsarou, Dimitra ; Papastylianou, Ioannis ; Passam, Harold C ; Ehaliotis, Constantinos ; Papadopoulou, Kalliope K
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abstractBackground and Aims Rocket salad (Eruca sativa Mills) is one of the major leafy vegetables produced worldwide and has been characterized as a rich source of chemoprotective glucosinolates (GSL). The relationship between N fertilization and the resulting plant biomass and N status with GSL quantity and quality in rocket leaves was examined. Methods A pot experiment was conducted, applying ten different N-rates and destructive sampling was carried out 15, 30 and 45 days after transplanting (DAT). The Mitscherlich equation was used to establish N[O.sub.3]-N critical levels at each growth stage and as an indicator of N demand for relative maximum dry matter accumulation and glucosinolate content and composition was determined. Results Glucosinolate content was significantly influenced by N rate, growth stage and their interaction. Different GSL types showed dissimilar responses to N fertilization: aliphatic GSLs were significantly reduced under increased N rates whereas indole GSL showed the reverse. Under excess N fertilization (>1.04 g/plant), dry matter accumulation remained constant, N[O.sub.3]-N was significantly increased and total GSL content was significantly reduced, factors that could lead to an anticipated product quality decline. Conclusions The application of the critical N[O.sub.3]-N level approach used to identify optimal N fertilization rates for plant growth could serve as means to obtain optimized GSL content in the edible plant parts. Keywords Eruca * Glucosinolates * N critical levels * Nitrate environmental pollution * Plant product quality
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doi10.1007/s11104-011-1071-9