TY - JA AU - Fischer,R.A. AU - Sanchez,M. AU - Syme,J.R. TI - Pressure chamber and air flow porometer for rapid field indication of water status and stomatal condition in wheat SN - 1469-4441 PY - 1977/// CY - Cambridge (United Kingdom) PB - Cambridge University Press KW - Mexico KW - Permeability KW - Photosynthesis KW - AGROVOC KW - Pressure KW - Root pressure KW - Root systems KW - Sonora KW - Stems KW - Water holding capacity KW - Water potential KW - Winter crops KW - Xylem KW - Triticum aestivum N1 - Peer review; Graphs, references p. 351; Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0014-4797 N2 - Plant water potential and leaf diffusive conductance, key features of plant responses to water stress in field experiments, can be estimated, respectively, by xylem pressure potential measured with the pressure chamber apparatus, and leaf permeability measured with the air flow porometer. This paper describes modifications to these two techniques in order to increase the rapidity of measurements in wheat to 60/h with the pressure chamber, and 200/h with the porometer. Rapid measurements are needed because of the large within-and between-plot errors encountered with daytime measurements in typical field experiments, examples of which are presented UR - https://hdl.handle.net/20.500.12665/1493 T2 - Experimental Agriculture DO - https://doi.org/10.1017/S0014479700008103 ER -