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OLS Field Name OLS Field Data
Main Title Evaluation of a System for the Imposition of Plant Water Stress.
Author Snow, M. D. ; Tingey, D. T. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Portland Univ., OR. Dept. of Physical and Life Sciences.
Year Published 1985
Report Number EPA/600/J-85/216;
Stock Number PB86-121530
Additional Subjects Stress(Physiology) ; Plants(Physiology) ; Soil water ; Experimental data ; Evaluation ; Hydraulic conductivity ; Growth ; Transpiration ; Periodic variations ; Reprints ; Sunflowers ; Water levels
Library Call Number Additional Info Location Last
NTIS  PB86-121530 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 8p
Abstract A system which imposes a range of water stress levels was developed and evaluated. Water stress was controlled by employing a screen to suspend roots above a water column of known height. Levels of water stress were imposed by changing water column height and/or hydraulic conductivity of the medium in the column. The system was evaluated in a series of growth chamber experiments in which sunflowers(Helianthus annuus) were given three levels of water availability for a period of 3 weeks. Third leaf midday water potentials at the end of the trials ranged from -0.73+ or -0.04 to -2.35+ or -0.17 megapascals in water stressed plants compared to -0.04+ or - 0.02 megapascals for control plants. Repetition of experiments showed no statistical differences in leaf water potentials, plant leaf areas, or plastochron indices between trials.
Supplementary Notes Pub. in Plant Physiology 77, p602-607 Mar 85. Prepared in cooperation with Portland Univ., OR. Dept. of Physical and Life Sciences.
NTIS Title Notes Journal article.
Title Annotations Reprint: Evaluation of a System for the Imposition of Plant Water Stress.
PUB Date Free Form c1985
Category Codes 6C; 6S; 14B; 57C; 57W
NTIS Prices Not available NTIS
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 603116994
Origin NTIS
Type CAT