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Carl-Otto Ottosen

Low air humidity during growth promotes stomatal closure ability in rose

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Standard

Low air humidity during growth promotes stomatal closure ability in rose. / Fanourakis, D.; Gebraegziabher, Habtamu Giday; Hyldgaard, Benita Nordentoft; Bouranis, Dimitrios; Körner, O.; Ottosen, Carl-Otto.

I: European Journal of Horticultural Science, Bind 84, Nr. 4, 2019, s. 245-252.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Fanourakis, D, Gebraegziabher, HG, Hyldgaard, BN, Bouranis, D, Körner, O & Ottosen, C-O 2019, 'Low air humidity during growth promotes stomatal closure ability in rose', European Journal of Horticultural Science, bind 84, nr. 4, s. 245-252. https://doi.org/10.17660/eJHS.2019/84.4.7

APA

Fanourakis, D., Gebraegziabher, H. G., Hyldgaard, B. N., Bouranis, D., Körner, O., & Ottosen, C-O. (2019). Low air humidity during growth promotes stomatal closure ability in rose. European Journal of Horticultural Science, 84(4), 245-252. https://doi.org/10.17660/eJHS.2019/84.4.7

CBE

Fanourakis D, Gebraegziabher HG, Hyldgaard BN, Bouranis D, Körner O, Ottosen C-O. 2019. Low air humidity during growth promotes stomatal closure ability in rose. European Journal of Horticultural Science. 84(4):245-252. https://doi.org/10.17660/eJHS.2019/84.4.7

MLA

Fanourakis, D. o.a.. "Low air humidity during growth promotes stomatal closure ability in rose". European Journal of Horticultural Science. 2019, 84(4). 245-252. https://doi.org/10.17660/eJHS.2019/84.4.7

Vancouver

Fanourakis D, Gebraegziabher HG, Hyldgaard BN, Bouranis D, Körner O, Ottosen C-O. Low air humidity during growth promotes stomatal closure ability in rose. European Journal of Horticultural Science. 2019;84(4):245-252. https://doi.org/10.17660/eJHS.2019/84.4.7

Author

Fanourakis, D. ; Gebraegziabher, Habtamu Giday ; Hyldgaard, Benita Nordentoft ; Bouranis, Dimitrios ; Körner, O. ; Ottosen, Carl-Otto. / Low air humidity during growth promotes stomatal closure ability in rose. I: European Journal of Horticultural Science. 2019 ; Bind 84, Nr. 4. s. 245-252.

Bibtex

@article{2ddc74a570344e96a3e77342ac316018,
title = "Low air humidity during growth promotes stomatal closure ability in rose",
abstract = "In greenhouse horticulture, evaporative demand varies between seasons. For instance, plants are typically exposed to low relative air humidity (RH) during summer, whereas elevated RH prevails in winter. Since high RH during cultivation impairs stomatal functioning, some opposite changes might be expected, when plants are subjected to long-term low RH. To investigate this, Rosa hybrida ‘Pasadena’ was cultivated at 40, 60 or 90{\%} RH. Plant performance, transpiration, stomatal closing ability and anatomy were recorded. As RH increased from 40 to 60{\%} as well as from 60 to 90{\%}, plants showed larger leaf area and thinner leaves. Plant water loss was mainly determined by ambient RH in the growing environment, with stomatal conductance (gs) being of secondary importance. With increasing RH, plant transpiration declined at growth environment. Larger stomata were found at 90{\%} RH, as compared to 40 or 60{\%}. Stomatal physiology was considerably affected by 90{\%} RH, including reduced gs oscillations within the photoperiod, attenuated opening response following dark/light transition, as well as reduced closing response upon darkening. The plants cultivated at 90{\%} RH had a reduced ability to control water loss upon water deprivation, compared to those grown at 60{\%}. In contrast, cultivation at 40{\%} RH resulted in stomata, which were much more responsive to water stress, compared to 60{\%} RH-grown plants. This superiority was dual: lower transpiration rate combined with less severe leaf drying to induce stomatal closure. In conclusion, low RH during cultivation, which is typical during summer, leads to thicker leaves with very responsive stomata.",
keywords = "ABA, ABSCISIC-ACID, C-3, CLOSING ABILITY, GENOTYPIC VARIATION, GROWTH, LEAF DEVELOPMENT, RESPONSIVENESS, VPD, evaporative demand, stomata, transpiration, vapour pressure deficit",
author = "D. Fanourakis and Gebraegziabher, {Habtamu Giday} and Hyldgaard, {Benita Nordentoft} and Dimitrios Bouranis and O. K{\"o}rner and Carl-Otto Ottosen",
year = "2019",
doi = "10.17660/eJHS.2019/84.4.7",
language = "English",
volume = "84",
pages = "245--252",
journal = "European Journal of Horticultural Science",
issn = "1611-4426",
publisher = "International Society for Horticultural Science",
number = "4",

}

RIS

TY - JOUR

T1 - Low air humidity during growth promotes stomatal closure ability in rose

AU - Fanourakis, D.

AU - Gebraegziabher, Habtamu Giday

AU - Hyldgaard, Benita Nordentoft

AU - Bouranis, Dimitrios

AU - Körner, O.

AU - Ottosen, Carl-Otto

PY - 2019

Y1 - 2019

N2 - In greenhouse horticulture, evaporative demand varies between seasons. For instance, plants are typically exposed to low relative air humidity (RH) during summer, whereas elevated RH prevails in winter. Since high RH during cultivation impairs stomatal functioning, some opposite changes might be expected, when plants are subjected to long-term low RH. To investigate this, Rosa hybrida ‘Pasadena’ was cultivated at 40, 60 or 90% RH. Plant performance, transpiration, stomatal closing ability and anatomy were recorded. As RH increased from 40 to 60% as well as from 60 to 90%, plants showed larger leaf area and thinner leaves. Plant water loss was mainly determined by ambient RH in the growing environment, with stomatal conductance (gs) being of secondary importance. With increasing RH, plant transpiration declined at growth environment. Larger stomata were found at 90% RH, as compared to 40 or 60%. Stomatal physiology was considerably affected by 90% RH, including reduced gs oscillations within the photoperiod, attenuated opening response following dark/light transition, as well as reduced closing response upon darkening. The plants cultivated at 90% RH had a reduced ability to control water loss upon water deprivation, compared to those grown at 60%. In contrast, cultivation at 40% RH resulted in stomata, which were much more responsive to water stress, compared to 60% RH-grown plants. This superiority was dual: lower transpiration rate combined with less severe leaf drying to induce stomatal closure. In conclusion, low RH during cultivation, which is typical during summer, leads to thicker leaves with very responsive stomata.

AB - In greenhouse horticulture, evaporative demand varies between seasons. For instance, plants are typically exposed to low relative air humidity (RH) during summer, whereas elevated RH prevails in winter. Since high RH during cultivation impairs stomatal functioning, some opposite changes might be expected, when plants are subjected to long-term low RH. To investigate this, Rosa hybrida ‘Pasadena’ was cultivated at 40, 60 or 90% RH. Plant performance, transpiration, stomatal closing ability and anatomy were recorded. As RH increased from 40 to 60% as well as from 60 to 90%, plants showed larger leaf area and thinner leaves. Plant water loss was mainly determined by ambient RH in the growing environment, with stomatal conductance (gs) being of secondary importance. With increasing RH, plant transpiration declined at growth environment. Larger stomata were found at 90% RH, as compared to 40 or 60%. Stomatal physiology was considerably affected by 90% RH, including reduced gs oscillations within the photoperiod, attenuated opening response following dark/light transition, as well as reduced closing response upon darkening. The plants cultivated at 90% RH had a reduced ability to control water loss upon water deprivation, compared to those grown at 60%. In contrast, cultivation at 40% RH resulted in stomata, which were much more responsive to water stress, compared to 60% RH-grown plants. This superiority was dual: lower transpiration rate combined with less severe leaf drying to induce stomatal closure. In conclusion, low RH during cultivation, which is typical during summer, leads to thicker leaves with very responsive stomata.

KW - ABA

KW - ABSCISIC-ACID

KW - C-3

KW - CLOSING ABILITY

KW - GENOTYPIC VARIATION

KW - GROWTH

KW - LEAF DEVELOPMENT

KW - RESPONSIVENESS

KW - VPD

KW - evaporative demand

KW - stomata

KW - transpiration

KW - vapour pressure deficit

UR - http://www.scopus.com/inward/record.url?scp=85073272660&partnerID=8YFLogxK

U2 - 10.17660/eJHS.2019/84.4.7

DO - 10.17660/eJHS.2019/84.4.7

M3 - Journal article

VL - 84

SP - 245

EP - 252

JO - European Journal of Horticultural Science

JF - European Journal of Horticultural Science

SN - 1611-4426

IS - 4

ER -