TECHNIQUES FOR EVALUATION ROOT RESPIRATION IN WINTER WHEAT

Root respiration in winter wheat (Triticum aestivum L. em Thell) is not well described. Three instruments, a carbon dioxide specific electrode, infrared gas analyzer, and galvanic electrode were evaluated for estimation of root respiration rates of five hydroponically grown wheat cultivars. Four pla...

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Bibliographic Details
Published in:Cereal research communications 1985-01, Vol.13 (2/3), p.185-191
Main Authors: Bruns, H.A., Croy, L.I.
Format: Article
Language:English
Subjects:
Carbon dioxide
Electrodes
Gas analysis
Grains
Nutrient solutions
Plant roots
Plants
Respiration
Root growth
Soil respiration
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Summary:Root respiration in winter wheat (Triticum aestivum L. em Thell) is not well described. Three instruments, a carbon dioxide specific electrode, infrared gas analyzer, and galvanic electrode were evaluated for estimation of root respiration rates of five hydroponically grown wheat cultivars. Four plantings were made for study of each instrument with three observations made on each planting. Respiration rates were found to decrease with increasing plant age. In the infrared gas analysis study and the galvanic electrode experiments cultivar differences in root respiration were observed. The infrared gas analyzer appeared most effective of the three systems studied as it is a more direct method of obtaining root respiration data.
ISSN:0133-3720
1788-9170