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Reaction of Western Ironweed Leaf Tissue to Picloram

Published online by Cambridge University Press:  12 June 2017

C. J. Scifres
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Lincoln, Nebraska
M. K. McCarty
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Lincoln, Nebraska

Abstract

Foliar treatments of 4-amino-3,5,6-trichloropicolinic acid (picloram) induced rapid procambium activity in western iron-weed (Vernonia baldwini Torr.) leaves. Increased meristematic activity was followed by destruction of the phloem parenchyma, sieve elements, and companion cells. Cell destruction in the vascular bundle was concomitant with that in the mesophyll.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Crafts, A. S. 1964. Herbicide behavior in the plant, p. 75110. In Audus, L. J., The Physiology and Biochemistry of Herbicides. Academic Press, New York.Google Scholar
2. Eames, Arthur J. 1950. Destruction of phloem in young bean plants after treatment with 2,4-D. Amer. J. Bot. 37:840847.Google Scholar
3. Kreps, Lester B. and Alley, Harold P. 1967. Histological abnormalities induced by picloram on Canada thistle roots. Weeds 15:5659.Google Scholar
4. Leo, Gary A., Dobrenz, Albert K., and Alley, Harold P. 1967. Preliminary investigations of the effect of tordon and 2,4-D on leaf and root tissue of Canada thistle. Down to Earth 23(2): 2123.Google Scholar
5. Steel, Robert G. D. and Torrie, James H. 1960. Principles and Procedures of Statistics. McGraw-Hill, New York. 481 p.Google Scholar
6. Weaver, H. L. 1955. An improved gelatin adhesive for paraffin sections. Stain Tech. 30:6364.CrossRefGoogle ScholarPubMed