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The effect of a prolonged 2,4-dichlorophenoxyacetic-acid treatment on transpiration and stomatal distribution in tomato leaves

✍ Scribed by Moshe Tal; Dorot Imber

Publisher
Springer-Verlag
Year
1971
Tongue
English
Weight
195 KB
Volume
97
Category
Article
ISSN
0032-0935

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✦ Synopsis

The effect of 2,4-diehlorophenoxyacetie acid applied during plant development on transpiration rate and distribution of stomata was studied in the wilty tomato mutant, flacca, and the normal cultivar, Rheinlands Ruhm. The rate of transpiration per unit leaf area was higher in treated than untreated leaves. Stomatat density in treated leaves did not increase; the stomates were able to open and close, and their aperture width under light was not greater than in untreated leaves. The ratio between stomata on the upper and lower leaf surfaces was higher in treated plants.

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This paper is based upon a thesis submitted to the Grduate School of the University of Washington by Charles Wassberg in partial fulfillment of the requirements for the dearee of Master of Science. Pharmacy, University of Washington.