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Gross Morphological and Cytological Effects of Nitralin on Corn Roots

Published online by Cambridge University Press:  12 June 2017

W. A. Gentner  and
L. G. Burk
W. A. Gentner
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Beltsville, Maryland, and Oxford, North Carolina, (formerly Beltsville)
L. G. Burk
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Beltsville, Maryland, and Oxford, North Carolina, (formerly Beltsville)
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Abstract

The gross morphological effects of the herbicide 4-methyl-sulphonyl-2,6-dinitro-N,N-dipropylaniline [nitralin] on roots of corn (Zea mays L., var. U. S. 13) suggested abnormal cytological behavior. Roots of corn plants treated preemergence with nitralin developed digitate to globose swelling in the region of active cell division of the root tip. Cytological examination of the affected area showed that the effects of the herbicide were prevention of cell wall formation, enlargement of cells, and extensive replication of nuclei, and suggests that a primary effect of nitralin is on cell division and that this may be a primary mechanism of action as a herbicide.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 2 , April 1968 , pp. 259 - 260
Copyright
Copyright © Weed Science Society of America 

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References

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