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Development of a test system for the inspection of the phytotoxicity of gases; Entwicklung eines Testsystems zur Ueberpruefung der Phytotoxizitaet von Gasen

Abstract

On the basis of the Continuous Stirred Tank Reactor (CSTR) design, a standard test system with which the toxic effect of gases on higher plants can be checked was developed. Multiple units of the exposure system can be added to a central air control for fresh-air and off-air blowers. The simple construction guarantees a problem-free reconstruction and an easy handling of the system. The dose/effect experiments were carried out with Phaseolus vulgaris and Zea mays and sulphur dioxide. Effect criteria for the plant reaction were the yield parameters: fresh weight and dry weight; sprout/root ratio; fresh weight/dry weight ratio; transpiration coefficient; sulphur concentration. Three-week application of sulphur dioxide caused in the case of the dwarf french bean a significant reduction of the yield parameters. The exposed maize plants, on the other hand, partly reacted to the gas exposure with a clear stimulation of some of the yield parameters. In the case of most yield parameters, there was a linear relationship between the applied toxic gas concentration and the observed plant reaction. (orig./VHE). [Deutsch] Basierend auf dem Konzept des `Continuous Stirred Tank Reactor` (CSTR) wurde ein Standard-Testsystem entwickelt, mit dem die toxische Wirkung von Gasen auf hoehere Pflanzen ueberprueft werden kann.  More>>
Authors:
Publication Date:
Dec 20, 1989
Product Type:
Thesis/Dissertation
Report Number:
ETDE-mf-2750197
Reference Number:
SCA: 560300; PA: DE-92:000152; SN: 92000629770
Resource Relation:
Other Information: TH: Diss. (Dr.rer.nat.)Thesis; PBD: 20 Dec 1989
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; SULFUR DIOXIDE; EXPOSURE CHAMBERS; PLANT GROWTH; TOXICITY; BIOASSAY; AIR POLLUTION; PHASEOLUS; MAIZE; DOSE-RESPONSE RELATIONSHIPS; LEAVES; TRANSPIRATION; PHOTOSYNTHESIS; BIOLOGICAL EFFECTS; 560300; CHEMICALS METABOLISM AND TOXICOLOGY
OSTI ID:
10109579
Research Organizations:
Technische Univ. Braunschweig (Germany). Naturwissenschaftliche Fakultaet
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: ON: DE92750197; TRN: DE9200152
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
DE
Size:
156 p.
Announcement Date:
Jun 30, 2005

Citation Formats

Koennecker, G. Development of a test system for the inspection of the phytotoxicity of gases; Entwicklung eines Testsystems zur Ueberpruefung der Phytotoxizitaet von Gasen. Germany: N. p., 1989. Web.
Koennecker, G. Development of a test system for the inspection of the phytotoxicity of gases; Entwicklung eines Testsystems zur Ueberpruefung der Phytotoxizitaet von Gasen. Germany.
Koennecker, G. 1989. "Development of a test system for the inspection of the phytotoxicity of gases; Entwicklung eines Testsystems zur Ueberpruefung der Phytotoxizitaet von Gasen." Germany.
@misc{etde_10109579,
title = {Development of a test system for the inspection of the phytotoxicity of gases; Entwicklung eines Testsystems zur Ueberpruefung der Phytotoxizitaet von Gasen}
author = {Koennecker, G}
abstractNote = {On the basis of the Continuous Stirred Tank Reactor (CSTR) design, a standard test system with which the toxic effect of gases on higher plants can be checked was developed. Multiple units of the exposure system can be added to a central air control for fresh-air and off-air blowers. The simple construction guarantees a problem-free reconstruction and an easy handling of the system. The dose/effect experiments were carried out with Phaseolus vulgaris and Zea mays and sulphur dioxide. Effect criteria for the plant reaction were the yield parameters: fresh weight and dry weight; sprout/root ratio; fresh weight/dry weight ratio; transpiration coefficient; sulphur concentration. Three-week application of sulphur dioxide caused in the case of the dwarf french bean a significant reduction of the yield parameters. The exposed maize plants, on the other hand, partly reacted to the gas exposure with a clear stimulation of some of the yield parameters. In the case of most yield parameters, there was a linear relationship between the applied toxic gas concentration and the observed plant reaction. (orig./VHE). [Deutsch] Basierend auf dem Konzept des `Continuous Stirred Tank Reactor` (CSTR) wurde ein Standard-Testsystem entwickelt, mit dem die toxische Wirkung von Gasen auf hoehere Pflanzen ueberprueft werden kann. Multiple Einheiten des Expositionssystems (Begasungskammern) koennen in klimatisierten Raeumen an ein zentrales Luftfuehrungssystem mit getrennter Regelung fuer Zu- und Abluftgeblaese angeschlossen werden. Die einfache Konstruktion gewaehrleistet einen problemlosen Nachbau und eine leichte Handhabung des Systems. Dosis-Wirkungs-Experimente wurden mit Phaseolus vulgaris und Zea mays und Schwefeldioxid vorgenommen. Wirkungskriterien fuer die Pflanzenreaktion waren die Ertragsparameter Frisch- und Trockengewicht, absolute und spezifische Blattflaeche, Blattgewicht/Gesamtgewicht-Verhaeltnis, Spross/Wurzel-Verhaeltnis, Frischgewicht/Trockengewicht-Verhaeltnis, Transpirationskoeffizient und Schwefelgehalt. Die dreiwoechige Applikation von 400 {mu}g m{sup -3} SO{sub 2} fuehrte bei der Buschbohne zu einer signifikanten Reduktion der Ertragsparameter. Die exponierten Maispflanzen reagieren auf Stimulation einiger Ertragsparameter. Fuer die meisten Ertragsparameter konnte eine lineare Beziehung zwischen applizierter Schadgaskonzentration (0-400 {mu}g m{sup -3}SO{sub 2}) und beobachteter Pflanzenreaktion naschgewiesen werden. (orig./VHE).}
place = {Germany}
year = {1989}
month = {Dec}
}