Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/19444
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dc.contributor.authorHe, Jie-
dc.contributor.authorAustin, P. T.-
dc.contributor.authorNichols, Michael A.-
dc.contributor.authorLee, Sing-Kong-
dc.date.accessioned2018-01-29T06:44:02Z-
dc.date.available2018-01-29T06:44:02Z-
dc.date.issued2004-
dc.identifier.citationHe, J., Austin, P. T., Nichols, M. A., & Lee, S. K. (2004). Effect of root-zone (RZ) CO2, on productivity and photosynthesis in aeroponically grown lettuce plants. Acta Horticulturae, 648, 39-45. https://doi.org/10.17660/ActaHortic.2004.648.5en
dc.identifier.issn0567-7572-
dc.identifier.urihttp://hdl.handle.net/10497/19444-
dc.descriptionThis is the final draft, after peer-review, of a manuscript published in Acta Horticulturae. The published version is available online at http://dx.doi.org/10.17660/ActaHortic.2004.648.5en
dc.description.abstractEffects of root-zone (RZ) CO<sub>2</sub> on crisphead-type lettuce (<i>Lactuca sativa</i> L. cv. ‘Wintergreen’ were measured in an aeroponic system under photosynthetic photon flux of 650 μmol m<sup>-2</sup> s<sup>-1</sup>, 12 h photoperiod at 36<sup>o</sup>C/30<sup>o</sup>C and 28<sup>o</sup>C/22<sup>o</sup>C (day/night), with three enriched RZ CO<sub>2</sub> levels (2000 ppm, 10,000 ppm and 50,000 ppm). Leaf growth was monitored after elevated RZ CO<sub>2</sub> had been supplied for one week. Leaf areas with elevated RZ CO<sub>2</sub> were greater than ambient controls at both temperatures, while shoot and root weights were also higher. Increasing temperature reduced biomass overall, but the relative response to RZ CO<sub>2</sub> was greater. Elevated RZ CO<sub>2</sub> stimulated photosynthetic CO<sub>2</sub> assimilation, with greater increase at higher temperatures. Elevated RZ CO<sub>2</sub> decreased stomatal conductance at both temperatures, reducing transpiration water loss.en
dc.language.isoenen
dc.subjectLeaf areaen
dc.subjectPhotosynthesisen
dc.subjectCO2 assimilationen
dc.subjectShoot and root weighten
dc.subjectStomatal conductanceen
dc.subjectTranspirationen
dc.titleEffect of root-zone (RZ) CO2, on productivity and photosynthesis in aeroponically grown lettuce plantsen
dc.typePostprinten
dc.identifier.doi10.17660/ActaHortic.2004.648.5-
local.message.claim2021-12-22T11:14:35.896+0800|||rp00038|||submit_approve|||dc_contributor_author|||None*
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith file-
item.languageiso639-1en-
item.openairetypePostprint-
item.grantfulltextOpen-
item.cerifentitytypePublications-
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