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The Effect of Linuron on 32P and 45Ca Uptake in Tomato and Parsnip

Published online by Cambridge University Press:  12 June 2017

E. J. Hogue
E. J. Hogue*
Affiliation:
Department of Horticulture, Purdue University
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Abstract

The effects of sublethal and lethal levels of 3-(3,4-dichlorophenyl)-l-methoxy-l-methylurea (linuron) on the uptake of 32P and 45Ca were tested on tomato (Lycopersicum esculentum Mill., var. Kokomo) and parsnip (Pastinaca sativa L., var. Harris Model). Both levels of foliage-applied linuron stimulated the uptake of 32P from nutrient culture solution and its translocation to the leaves. The increased 32P in the leaves of the treated tomato plants was found in the inorganic phosphate fraction. Incorporation of the label in the phospholipid and nucleic acid fractions was decreased slightly. Linuron inhibited uptake and translocation of 45Ca in both plants.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 2 , April 1968 , pp. 185 - 187
Copyright
Copyright © Weed Science Society of America 

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References

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