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Canopy temperature of high-nitrogen water-stressed cotton

Coast, Onoriode; Harden, Steven; Conaty, Warren C.; Brodrick, Rose; Edwards, Everard J.

Description

Australian cotton (Gossypium hirsutum L.) farmers are adopting canopy temperature (Tc)‐based irrigation scheduling as a decision support tool to improve on‐farm production. High N supply, characteristic of the high‐yielding, furrow‐irrigated cotton system of Australia, might alter cotton Tc with implications for irrigation. We examined growth, physiological, and biochemical traits and changes in Tc of well‐watered and water‐stressed cotton plants supplied with high to excessive levels of N...[Show more]

dc.contributor.authorCoast, Onoriode
dc.contributor.authorHarden, Steven
dc.contributor.authorConaty, Warren C.
dc.contributor.authorBrodrick, Rose
dc.contributor.authorEdwards, Everard J.
dc.date.accessioned2021-02-09T00:07:27Z
dc.identifier.issn0011-183X
dc.identifier.urihttp://hdl.handle.net/1885/222415
dc.description.abstractAustralian cotton (Gossypium hirsutum L.) farmers are adopting canopy temperature (Tc)‐based irrigation scheduling as a decision support tool to improve on‐farm production. High N supply, characteristic of the high‐yielding, furrow‐irrigated cotton system of Australia, might alter cotton Tc with implications for irrigation. We examined growth, physiological, and biochemical traits and changes in Tc of well‐watered and water‐stressed cotton plants supplied with high to excessive levels of N under glasshouse conditions. We also examined Tc, lint yield, and fiber quality of furrow‐irrigated cotton crop supplied with high N. In the glasshouse and under well‐watered conditions, high N supply stimulated plant growth and increased stomatal conductance and photosynthesis, resulting in cooler Tc. Under water deficit stress, high N also stimulated growth, increasing plant water demand and thus vulnerability to water stress, which manifested as warmer Tc. Water‐stressed plants supplied high N also showed reduced stomatal conductance, lower leaf water potential, and greater accumulation of leaf and xylem sap abscisic acid. Furrow‐irrigated crops supplied higher N also had higher Tc, but there was no gain in lint yield and fiber quality. The influence of high N on cotton Tc suggests that the need for accurate and reliable Tc‐based irrigation scheduling is paramount.
dc.description.sponsorshipCentre of Excellence in Plant Energy Biology, Australian Research Council, Grant/Award Number: CE140100008; Cotton Research and Development Corporation, Grant/Award Number: CSP1104
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherWiley
dc.rights© 2020 The Authors. Crop Science © 2020 Crop Science Society of America
dc.sourceCrop Science
dc.titleCanopy temperature of high-nitrogen water-stressed cotton
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume60
dc.date.issued2020
local.identifier.absfor070302 - Agronomy
local.identifier.absfor070303 - Crop and Pasture Biochemistry and Physiology
local.identifier.ariespublicationa383154xPUB13610
local.publisher.urlhttps://www.wiley.com/en-gb
local.type.statusAccepted Version
local.contributor.affiliationCoast, Onoriode, College of Science, ANU
local.contributor.affiliationHarden, Steven, Tamworth Agricultural Institute
local.contributor.affiliationConaty, Warren C., CSIRO
local.contributor.affiliationBrodrick, Rose, CSIRO
local.contributor.affiliationEdwards, Everard J., CSIRO
dc.relationhttp://purl.org/au-research/grants/arc/CE140100008
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage1513
local.bibliographicCitation.lastpage1529
local.identifier.doi10.1002/csc2.20127
local.identifier.absseo960905 - Farmland, Arable Cropland and Permanent Cropland Water Management
local.identifier.absseo820301 - Cotton
local.identifier.absseo960301 - Climate Change Adaptation Measures
dc.date.updated2020-11-08T07:17:58Z
dcterms.accessRightsOpen Access
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/17986..."The Accepted Version can be archived in a Non-Commercial Institutional Repository. 12 months embargo" from SHERPA/RoMEO site (as at 16/02/2021). This is the peer reviewed version of the following article: [Coast, Onoriode, et al. "Canopy temperature of high‐nitrogen water‐stressed cotton." Crop Science 60.3 (2020): 1513-1529.], which has been published in final form at [https://dx.doi.org/10.1002/csc2.20127]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
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