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Translocation of Assimilates and Dalapon in Established Johnsongrass

Published online by Cambridge University Press:  12 June 2017

Richard J. Hull
Richard J. Hull*
Affiliation:
Department of Botany and Plant Pathology, Purdue University, Lafayette, Indiana
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Abstract

The influence of repeated clipping of the shoots on the translocation of 14C-assimilates and 2,2-dichloropropionic acid 2-14C (dalapon) into the rhizome system of established johnsongrass (Sorghum halepense (L.) Pers.) was studied when regrowth was in the preboot, boot, and flowering stages. Radioautography and radio-assay procedures were used to follow the distribution of label within the plants. Plants defoliated three times prior to treatment showed no increase in basipetal translocation over plants defoliated once. As plants matured to the flowering stage, assimilate translocation into rhizomes increased. This increase was closely related to the degree of secondary rhizome growth occurring at time of label application. During preboot, assimilate movement was restricted to rhizome apices with very little retention in intervening tissue. Labeled dalapon followed a similar translocation pattern to that of assimilates. The role of assimilate translocation and storage as correlated with life cycle changes in carbohydrate nutrition of established johnsongrass is discussed.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 3 , July 1969 , pp. 314 - 320
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

1. Anderson, L. E., Appleby, A. P., and Weseloh, J. W. 1960. Characteristics of jphnsongrass rhizomes. Weeds 8:402–406.Google Scholar
2. Burt, E. O. and Willard, C. J. 1959. Control of johnsongrass (Sorghum halepense (L.) Pers.) in Ohio by herbicides and cultural practices. Weeds 7:162–166.Google Scholar
3. Carr, D. J. and Wardlaw, I. F. 1965. The supply of photosynthetic assimilates to the grain from the flag leaf and ear of wheat. Australian J. Biol. Sci. 18:711–719.Google Scholar
4. Cates, J. S. and Spillman, W. J. 1907. A method of eradicating johnsongrass. U. S. Dep. Agr. Farmers' Bull. No. 279. 16 p.Google Scholar
5. Crafts, A. S. and Yamaguchi, S. 1964. The autoradiography of plant materials. Univ. of California Agr. Publ., Manual 35. Berkeley, California. 143 p.Google Scholar
6. Foy, C. L. 1961. Absorption, distribution and metabolism of 2,2-dichloropropionic acid in relation to phytotoxicity. I. Penetration and translocation of Cl36 – and C14 – labeled dalapon. Plant Physiol. 36:688–697.Google Scholar
7. Foy, C. L. 1961. Absorption, distribution, and metabolism of 2,2-dichloropropionic acid in relation to phytotoxicity. II. Distribution and metabolic fate of dalapon in plants. Plant Physiol. 36:698–709.Google Scholar
8. Foy, C. L. and Miller, J. H. 1956. Chemical control of Johnson grass. Proc. SWC 9:197–203.Google Scholar
9. Hauser, E. W. and Thompson, J. T. 1956. Progress report on control of established johnson grass with chemicals and clipping. Proc. SWC 9:190–196.Google Scholar
10. Hauser, E. W. and Thompson, J. T. 1959. A study of the absorption and translocation of several chemicals in johnson grass, and an evaluation of their effectiveness for its control under field conditions. Weeds 7:20–33.CrossRefGoogle Scholar
11. Hicks, R. D. and Fletchall, O. H. 1967. Control of johnsongrass in corn. Weeds 15:16–20.Google Scholar
12. McWhorter, C. G. 1961. Morphology and development of johnsongrass plants from seeds and rhizomes. Weeds 9:558–562.Google Scholar
13. McWhorter, C. G. 1966. Toxicity of DSMA to johnsongrass. Weeds 14:191–194.Google Scholar
14. McWhorter, C. G. and Hartwig, E. E. 1965. Effectiveness of preplanting tillage in relation to herbicides in controlling johnsongrass for soybean production. Agron. J. 57:385–389.Google Scholar
15. Oyer, E. B., Gries, G. A., and Rogers, B. J. 1959. The seasonal development of johnson grass plants. Weeds 7:13–19.Google Scholar
16. Rea, H. E. 1955. The effectiveness of dalapon in controlling johnsongrass. Proc. SWC 8:394–396.Google Scholar
17. Sturkie, D. G. 1930. The influence of various top-cutting treatments on rootstalks of johnsongrass. T. Amer. Soc. Agron. 22:82–93.Google Scholar
18. Thorne, G. N. 1965. Photosynthesis of ears and flag leaves of wheat and barley. Ann. Bot. 29:317–329.Google Scholar