Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique

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Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique. / Roosta, H. R.; Schjoerring, J. K.

In: Acta Horticulturae, Vol. 1315, 2021, p. 495-501.

Research output: Contribution to journal › Conference article › Research › peer-review

Harvard

Roosta, HR & Schjoerring, JK 2021, 'Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique', Acta Horticulturae, vol. 1315, pp. 495-501. https://doi.org/10.17660/ActaHortic.2021.1315.73

APA

Roosta, H. R., & Schjoerring, J. K. (2021). Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique. Acta Horticulturae, 1315, 495-501. https://doi.org/10.17660/ActaHortic.2021.1315.73

Vancouver

Roosta HR, Schjoerring JK. Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique. Acta Horticulturae. 2021;1315:495-501. https://doi.org/10.17660/ActaHortic.2021.1315.73

Author

Roosta, H. R. ; Schjoerring, J. K. / Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique. In: Acta Horticulturae. 2021 ; Vol. 1315. pp. 495-501.

Bibtex

@inproceedings{ec1dab8b554648d8a841fd98efa9fef1,
title = "Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique",
abstract = "Different N sources (NO3-, NH4+, or NH4NO3) at relative addition rate (RAR) of 0.25 day-1 were supplied to tomato (Lycopersicom esculentum Mill.), a species sensitive to NH4+ toxicity. At RAR 0.25 day-1 growth reduction occurred by NH4+ application, slightly. Tomato roots had a more efficient NH4+ assimilation than shoots when N was supplied solely in the form of NH4+, and dominant amino acids in tomato were glutamine and asparagine. Low tissue levels of calcium and magnesium in the NH4+-fed plants constituted part of the NH4+-toxicity syndrome. The supply of NO3- led to the accumulation of Fe in tomato roots, but leaves Fe concentration in NO3--fed plants was low in comparison to NH4+ supply. It is concluded that due to the high sensitivity of tomato to NH4+, even at RAR 0.25 day-1 the relative addition rate technique was not able to reduce the deleterious effects of NH4+ in tomato plants.",
keywords = "Amino acid, Ammonium, Lycopersicon esculentum, Nitrate, Relative addition rate technique",
author = "Roosta, {H. R.} and Schjoerring, {J. K.}",
note = "Publisher Copyright: {\textcopyright} 2021 International Society for Horticultural Science. All rights reserved.; null ; Conference date: 04-09-2017 Through 07-09-2017",
year = "2021",
doi = "10.17660/ActaHortic.2021.1315.73",
language = "English",
volume = "1315",
pages = "495--501",
journal = "Acta Horticulturae",
issn = "0567-7572",
publisher = "International Society for Horticultural Science",

}

RIS

TY - GEN

T1 - Response of tomato plant to ammonium and nitrate nutrition using the relative addition rate technique

AU - Roosta, H. R.

AU - Schjoerring, J. K.

N1 - Conference code: 1

PY - 2021

Y1 - 2021

N2 - Different N sources (NO3-, NH4+, or NH4NO3) at relative addition rate (RAR) of 0.25 day-1 were supplied to tomato (Lycopersicom esculentum Mill.), a species sensitive to NH4+ toxicity. At RAR 0.25 day-1 growth reduction occurred by NH4+ application, slightly. Tomato roots had a more efficient NH4+ assimilation than shoots when N was supplied solely in the form of NH4+, and dominant amino acids in tomato were glutamine and asparagine. Low tissue levels of calcium and magnesium in the NH4+-fed plants constituted part of the NH4+-toxicity syndrome. The supply of NO3- led to the accumulation of Fe in tomato roots, but leaves Fe concentration in NO3--fed plants was low in comparison to NH4+ supply. It is concluded that due to the high sensitivity of tomato to NH4+, even at RAR 0.25 day-1 the relative addition rate technique was not able to reduce the deleterious effects of NH4+ in tomato plants.

AB - Different N sources (NO3-, NH4+, or NH4NO3) at relative addition rate (RAR) of 0.25 day-1 were supplied to tomato (Lycopersicom esculentum Mill.), a species sensitive to NH4+ toxicity. At RAR 0.25 day-1 growth reduction occurred by NH4+ application, slightly. Tomato roots had a more efficient NH4+ assimilation than shoots when N was supplied solely in the form of NH4+, and dominant amino acids in tomato were glutamine and asparagine. Low tissue levels of calcium and magnesium in the NH4+-fed plants constituted part of the NH4+-toxicity syndrome. The supply of NO3- led to the accumulation of Fe in tomato roots, but leaves Fe concentration in NO3--fed plants was low in comparison to NH4+ supply. It is concluded that due to the high sensitivity of tomato to NH4+, even at RAR 0.25 day-1 the relative addition rate technique was not able to reduce the deleterious effects of NH4+ in tomato plants.

KW - Amino acid

KW - Ammonium

KW - Lycopersicon esculentum

KW - Nitrate

KW - Relative addition rate technique

U2 - 10.17660/ActaHortic.2021.1315.73

DO - 10.17660/ActaHortic.2021.1315.73

M3 - Conference article

AN - SCOPUS:85111997069

VL - 1315

SP - 495

EP - 501

JO - Acta Horticulturae

JF - Acta Horticulturae

SN - 0567-7572

Y2 - 4 September 2017 through 7 September 2017

ER -

ID: 280175937