Nitrate accumulation in plants: a role for water

Cárdenas‐Navarro, Raúl; Adamowicz, Stéphane; Robin, Paul

doi:10.1093/jxb/50.334.613

Cited by 89 publications

(67 citation statements)

References 58 publications

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“…Likely, the lower DM content of plants grown at higher N rate was determined by the higher nitrate accumulation. Nitrates, exerting an osmotic effect, increase the capacity of the plant to retain water, and cause a decrease of DM content, which is consistent with the negative relationship observed between nitrates and DM content, in both cultivars and experiments (Figure 4), as well as in other studies (Reinink et al, 1987;Cárdenas-Navarro et al, 1999). At the same time, the osmotic effect of nitrate can explain the positive relationship observed between nitrate content and fresh yield (data not shown).…”

Section: Agronomic and Physiological Response Of Lettuce To Nitrogen supporting

confidence: 90%

“…These results should be duly considered in both, empirical and mechanistic crop models, currently proposed to predict crop growth, crop N uptake and crop water requirement (Cárdenas-Navarro et al, 1999). The inverse relationship between nitrate and DM content was in part considered by Seginer et al (2004) who modified the NICOLET model, used to predict the crop N uptake, on the assumption that because of the high nitrate-N content of lettuce, N uptake depends on plants water content.…”

Section: Agronomic and Physiological Response Of Lettuce To Nitrogen mentioning

confidence: 99%

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Agronomic, physiological and quality response of romaine and red oak-leaf lettuce to nitrogen input

et al. 2017

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Protecting the environment by improving the crop-system nitrogen (N) use efficiency (NUE) while maximising yield and quality is a primary challenge for modern agriculture, and understanding the processes that govern N fluxes in the plant-soil system is essential to improve NUE. An on-farm study was conducted over two fall-winter seasons to evaluate the NUE, agronomical and physiological response of romaine (var. longifolia, cv Manavert) and red oak-leaf (var. crispa, cv Aruba) lettuce (Lactuca sativa L.) to different N-rates (0, 60, 120, 180 kg ha -1 of N). Nitrogen rate influenced all tested parameters, including plant fresh and dry weight, N accumulation, leaf NO3 -and dry matter content, NUE indices, N nutrition index (NNI), soil residual N and the estimated N losses at the end of the crop season. Fresh yield, dry weight and N-accumulation response to N rate were influenced by lettuce genotype. Manavert had higher N recovery, NUE, and lower leaf NO3 -concentration than Aruba. Analysing the NNI overtime, 120 kg ha -1 of N assured an optimal N status in both Manavert and Aruba, while N deficiency and excess were observed at lower and higher N-rates, respectively. An empirical relationship was observed between NNI and leaf NO3 -concentration, suggesting that leaf NO3 -concentration may be used to predict NNI and thus the crop N status. The relationship between NNI and leaf NO3 -concentration may be used to define optimal leaf NO3 -concentration ranges for the rapid and site-specific assessment of the crop N status, and the dynamic adjustment of N-fertilisation, contributing to improve crop NUE, minimise N-losses, and optimise yield and quality of lettuce crops.

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Section: Agronomic and Physiological Response Of Lettuce To Nitrogen supporting

confidence: 90%

Section: Agronomic and Physiological Response Of Lettuce To Nitrogen mentioning

confidence: 99%

Agronomic, physiological and quality response of romaine and red oak-leaf lettuce to nitrogen input

et al. 2017

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“…It has been demonstrated that nitrate ions are involved in osmoregulation in plants [6]. In the studies conducted by C a r d e n a s -N a v a r r o et al [7], a highly significant positive correlation between nitrate and water content in tomato plants was noted. According to some researchers, nitrate content is under genetic control and can vary between species or even cultivars [8]. Nevertheless, this problem remains unsolved for numerous species.…”

Section: Introductionmentioning

confidence: 94%

Comparison of the ability of fifteen onion (Allium cepa L.) cultivars to accumulate nitrates

Wojciechowska¹,

Kołton²

2014

Acta Agrobot

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The aim of a two-year study was to characterise selected Allium cepa L. genotypes with regard to their ability to accumulate nitrates in bulbs as well as to search for a possible relation between NO3- concentration and dry matter content. Fifteen cultivars of edible onion, mostly of long-day genotype with different growing periods, bulb size and skin colour, were taken for the experiment. Seeds of particular cultivars were obtained from the following seed companies: Spójnia Nochowo (‘Labrador’, ‘Takstar F1’,‘Tęcza’, ‘Warna’, ‘Zorza’), Polan (‘Polanowska’, ‘Topolska’), PlantiCo Gołębiew (‘Alibaba’, ‘Efekt’, ‘Kristine’, ‘Niagara F1’),and PlantiCo Zielonki (‘Bila’, ‘Irka’, ‘Wenta’, ‘Zeta’). Plants produced from seedlings were grown in the experimental field of the University of Agriculture in Kraków. After crop harvesting and additional drying, nitrate and dry matter content in bulbs of all cultivars were measured.The following cultivars: ‘Efekt’, ‘Labrador’ and red-skinned ‘Wenta’, were characterized by the lowest ability to accumulate NO3- in bulbs. The highest nitrate content was noted in bulbs of ‘Takstar F1’ (a very early-season cultivar), followed by ‘Bila’ and ‘Tęcza’. A weak, yet statistically significant negative correlation between nitrate and dry matter content was observed. The highest dry matter content was determined in bulbs of white-skinned ‘Alibaba’, while the lowest – in brown-skinned ‘Labrador’.

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“…Nitrates are part of the nitrogen cycle and have an important role in the nutrition and function of plants (Shimada and Ko, 2004;EFSA, 2008). However, very high concentrations can increase the occurrence of methaemoglobinemia and possibly gastric cancer (Cárdenas-Navarro et al 1999). According to Santamaria (2006) (Biesiada et al, 2010) and nitrogen fertilization (Biesiada et al, 2009;Rutto et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Influence of Nitrogen Fertilization on Chemical Composition of Cultivated Nettle

Radman

Žutić

Fabek

et al. 2015

Emir. J. Food Agric

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Nitrate accumulation in plants: a role for water

Cited by 89 publications

References 58 publications

Agronomic, physiological and quality response of romaine and red oak-leaf lettuce to nitrogen input

Agronomic, physiological and quality response of romaine and red oak-leaf lettuce to nitrogen input

Comparison of the ability of fifteen onion (Allium cepa L.) cultivars to accumulate nitrates

Influence of Nitrogen Fertilization on Chemical Composition of Cultivated Nettle

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