BETA RAY GAUGING TECHNIQUE FOR MEASURING LEAD WATER CONTENT CHANGES AND MOISTURE STATUS OF PLANTS

Journal Article · Wed Jan 01 00:00:00 EST 1964 · Plant Physiology (U.S.)

DOI:https://doi.org/10.1104/pp.39.1.95· OSTI ID:4119771

Nakayama, F S; Ehrler, W L

The beta ray gaging technique for determining leaf water content and internal water status of plants was investigated. Promethium-147 was shown to provide beta rays of the right energy to give the best response to water changes in the cotton leaves with thicknesses of 15 to 35 mg cm/sup -2/ Equipment construction and gauge performance were checked using a 2 mu C promethium-147 source on plants under controlled environmental conditions. The instrument showed reliable responses to rapid change in water conditions of plants. With proper calibrations, leaf water and internal water (relative turgidity or diffusion pressure deficit) changes can be followed. (auth)

• Research Organization: Dept. of Agriculture, Tempe, Ariz.
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-012021
• OSTI ID: 4119771
• Journal Information: Plant Physiology (U.S.), Vol. Vol: 39; Other Information: Orig. Receipt Date: 31-DEC-64
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
BETA DETECTION
GASES
PERFORMANCE
PLANTS
PROMETHIUM 147
QUANTITATIVE ANALYSIS
STANDARDS
WATER