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EPTC Effects on Corn (Zea Mays) Growth and Endogenous Gibberellins.

Published online by Cambridge University Press:  12 June 2017

W. W. Donald ,
R. S. Fawcett  and
R. G. Harvey
W. W. Donald
Affiliation:
Dep. Agron., Univ. of Wisconsin, Madison, WI 53706
R. S. Fawcett
Affiliation:
Dep. Agron., Univ. of Wisconsin, Madison, WI 53706
R. G. Harvey
Affiliation:
Dep. Agron., Univ. of Wisconsin, Madison, WI 53706
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Abstract

Hydroponic treatment with EPTC (S-ethyl dipropylthiocarbamate) inhibited leaf growth and stimulated stem growth of hybrid corn (Zea mays L. ‘Wisconsin 473′). Root treatment with GA3 (gibberellic acid) prevented leaf stunting from EPTC. Most abnormalities in foliar display and height from treatment with 50 μM EPTC were prevented by increasing GA3 levels from 0.5 μM to 10 μM over a week. The effect of EPTC on endogenous gibberellin activity was measured by bioassay of shoot extracts. EPTC (6.7 kg/ha) reduced the levels of total endogenous gibberellin-like substances in eight-day-old seedlings grown in treated soil. Under the environmental condtions of the experiment, this corresponded to the first discernable signs of injury. In addition EPTC induced an abnormal distribution of endogenous gibberellins in the shoots of older corn plants. Leaves of two-week-old EPTC-treated plants contained less gibberellin activity than the leaves of controls. Stems of herbicide-treated plants contained the same levels of gibberellin-like substances as the controls.

Keywords

Mode of actionplant growth regulatorS-ethyl dipropylthiocarbamatethiocarbamate
Type
Research Article
Information
Weed Science , Volume 27 , Issue 1 , January 1979 , pp. 122 - 127
Copyright
Copyright © 1979 by the Weed Science Society of America 

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References

Literature Cited

1. Beste, C. E. and Schreiber, M. M. 1970. Antagonistic interactions of EPTC and 2,4-D. Weed Sci. 18:484–485.Google Scholar
2. Beste, C. E. and Schreiber, M. M. 1972. Interaction of EPTC and 2,4-D on excised tissue growth. Weed Sci. 20:4–7.CrossRefGoogle Scholar
3. Beste, C. E. and Schreiber, M. M. 1972. RNA synthesis as the basis for EPTC and 2,4-D antagonism. Weed Sci. 20:8–11.CrossRefGoogle Scholar
4. Blankendaal, M., Hodgson, R. H., Davis, D. G., Hoerauf, R. A., and Shimabukuro, R. H. 1972. Growing plants without soil for experimental use. U.S. Dep. Agric., Agric. Res. Serv. Misc. Publ. 1251. 17 pp.Google Scholar
5. Burt, G. W. 1976. Factors affecting thiocarbamate injury to corn II. Soil incorporation, seed placement, cultivar, leaching, and breakdown. Weed Sci. 24:327–330.CrossRefGoogle Scholar
6. Carringer, R. D., Rieck, C. E., and Bush, L. P. 1978. Effect of R-25788 on EPTC metabolism in corn (Zea mays). Weed Sci. 26:167–171.Google Scholar
7. Carringer, R. D., Rieck, C. E., and Bush, L. P. 1978. Metabolism of EPTC in corn (Zea mays). Weed Sci. 26:157–160.Google Scholar
8. Chang, F. Y., Bandeen, J. D., and Stephenson, G. R. 1972. A selective antidote for prevention of EPTC injury in corn. Can. J. Plant Sci. 52:707–714.Google Scholar
9. Donald, W. W. and Fawcett, R. S. 1975. Prevention of EPTC injury to hybrid corn with antidote R-29148 and exogenous GA3 . Proc. North Cent. Weed Control Conf. 30:28–29.Google Scholar
10. Donald, W. W., Harvey, R. G., and Fawcett, R. S. 1977. The role of gibberellins in the abnormal morphogenesis of EPTC injured corn seedlings. Weed Sci. Soc. Am. Abstr. p. 92.Google Scholar
11. Durley, R. C. and Pharis, R. P. 1972. Partition coefficients of 27 gibberellins. Phytochemistry 11:317–326.Google Scholar
12. Glenn, J. L., Kuo, C. C., Durley, R. C., and Pharis, R. P. 1972. Use of insoluble polyvinylpyrrolidone for purification of plant extracts and chromatography of plant hormones. Phytochemistry 11:345–351.CrossRefGoogle Scholar
13. Hansen, A. 1957. The expression of the gene dwarf-1 during the development of the seedling shoot in maize. Am. J. Bot. 44:381–390.Google Scholar
14. Hartley, R. D. 1969. Solvent and chemical impurities as sources of gibberellin-like biological activity. J. Exp. Bot. 20:276–287.Google Scholar
15. Harvey, B. M. R., Chang, F. Y., and Fletcher, R. A. 1975. Relationship between S-ethyl dipropyl thiocarbamate injury and peroxidase activity in corn seedlings. Can. J. Bot. 53:225–230.Google Scholar
16. Katsumi, M., Phinney, B. O., Jeffries, P. R., and Hendrick, C. A. 1964. Growth response of the d-5 and an-1 mutants of maize to some kaurene derivatives. Science 144:849–850.CrossRefGoogle ScholarPubMed
17. Kaufman, P. B. 1965. The effect of growth substances on intercalary growth and cellular differentiation of Avena sativa. I. The effects of indole-3-acetic acid. Physiol. Plant. 18:424–443.Google Scholar
18. Kaufman, P. B. 1965. The effect of growth substances on intercalary growth and cellular differentiation of Avena sativa II. The effects of GA3. Physiol. Plant. 18:703–724.Google Scholar
19. Kaufman, P. B., Ghoshehe, N. S., LaCroix, J. D., Soni, S. L., and Ikuma, H. 1973. Regulation of invertase levels in Avena stem segments by gibberellic acid, sucrose, fructose and glucose. Plant Physiol. 52:221–228.CrossRefGoogle Scholar
20. Kaufman, P. B., Ghoshehe, N. S., Naksteen, L., Pharis, R. P., Durley, R. C., and Morf, W. 1976. Analysis of native gibberellins in the internode, nodes, leaves, and inflorescences of developing Avena plants. Plant Physiol. 58.131–134.CrossRefGoogle ScholarPubMed
21. Krishnamoorthy, H. N., ed. 1976. Gibberellins and Plant Growth. John Wiley and Sons, New York. 356 pp.Google Scholar
22. Niccum, D. E. 1970. Variation in inbred and varietal tolerance of corn to butylate, alachlor and propachlor. Proc. North Cent. Weed Control Conf. 25:33–35.Google Scholar
23. Pelton, J. S. 1964. Genetic and morphogenetic studies of angiosperm single gene dwarfs. Bot. Rev. 30:479–512.Google Scholar
24. Pfund, J. H. and Crum, C. W. 1977. Inheritance of tolerance to eradicane in maize. Agron. Soc. Am. Abstr. p. 66.Google Scholar
25. Phinney, B. O. and West, C. A. 1960. Gibberellins as native plant growth regulators. Annu. Rev. Plant Physiol. 11:411–436.Google Scholar
26. Sachs, R. M. 1965. Stem elongation. Annu. Rev. Plant Physiol. 16:73–96.Google Scholar
27. Sokal, R. R. and Rohlf, F. J. 1969. Biometry. W. H. Freeman and Co., San Francisco. 776 pp.Google Scholar
28. Steel, R. G. D. and Torrie, J. H. 1960. Principles and Procedures of Statistics. McGraw-Hill Book Co., New York. 481 pp.Google Scholar
29. Waldrep, T. W. and Freeman, J. F. 1964. EPTC injury to corn as affected by depth of incorporation in soil. Weeds 12:315–317.Google Scholar
30. Wright, T. H. and Rieck, C. E. 1973. Differential butylate injury to corn hybrids. Weed Sci. 21:194–196.CrossRefGoogle Scholar