eprintid: 7665
rev_number: 7
eprint_status: archive
userid: 17
dir: disk0/00/00/76/65
datestamp: 2014-03-24 09:42:37
lastmod: 2014-03-24 09:42:37
status_changed: 2014-03-24 09:42:37
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@CGIAR.ORG
creators_name: Monteith, J L
icrisatcreators_name: Monteith, J L
affiliation: ICRISAT(Patancheru)
country: India
title: Porometry and baseline analysis: The case for compatibility
ispublished: pub
subjects: s2.4
full_text_status: restricted
abstract: This paper explores the suggestion by Idso and his colleagues that the response of stomata to saturation vapour pressure deficit may prove to be an artefact of porometry. Re-examination of their analysis reveals several potential sources of error leading to anomalously small ratios of aerodynamic to stomatal resistance both for leaves and for canopies. Arguments are advanced for adopting values of this ratio an order of magnitude larger than those used by Idso. The saturation deficit (D0) estimated within the canopies explored by Idso is then less than 1 kPa even when the deficit in ambient air approaches 30 kPa. As Idso's own porometer measurements suggest that stomatal closure in water hyacinth did not occur until D0 exceeded 1 kPa, his observations of stomatal resistance and radiative surface temperature appear to be fully compatible and his “apparent discrepancy” disappears
date: 1990
date_type: published
publication: Agricultural and Forest Meteorology
volume: 49
number: 2
publisher: Elsevier
pagerange: 155-167
refereed: TRUE
issn: 0168-1923
official_url: http://dx.doi.org/10.1016/0168-1923(90)90048-B
related_url_url: http://scholar.google.co.in/scholar?as_q=Porometry+and+baseline+analysis%3A+The+case+for+compatibility&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&btnG=&hl=en&as_sdt=0%2C5
related_url_type: pub
citation:   Monteith, J L  (1990) Porometry and baseline analysis: The case for compatibility.  Agricultural and Forest Meteorology, 49 (2).  pp. 155-167.  ISSN 0168-1923     
document_url: http://oar.icrisat.org/7665/1/AgriculturalandForestMeteorology_49_155-167_1990.pdf