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Release of Herbicides by Soybean Roots in Culture Solutions

  • K. Moody (a1), C. A. Kust (a2) and K. P. Buchholtz (a2)


The release of 3-amino-2,5-dichlorobenzoic acid (amiben), 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine), isopropyl m-chlorocarbanilate (chlorpropham), S-ethyl dipropylthiocarbamate (EPTC), and 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (linuron) from excised soybean (Glycine max (L) Merr., var. Chippewa) roots following uptake of the herbicides from solutions for 1 hr was studied. Rates of release of herbicides into water were rapid with at least 30% of that taken up being released during the first 30 min. Herbicide X time and herbicide X concentration interactions were highly significant. In most instances, slow release continued for 4 hr, which was the duration of the experiment. Use of herbicide or nutrient solutions as release solutions did not significantly change the amounts of herbicides released. It was concluded that herbicide molecules released after 1 hr uptake were those that had diffused out from free space rather than those released from uptake or adsorptive sites.



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1. Blackman, G. E. and Sargent, J. A. 1959. The uptake of growth substances. II. The absorption and accumulation of 2,3,5-trichlorobenzoic acid by root and frond of Lemna minor . J. Exp. Bot. 10:480503.
2. Blackman, G. E., Sen, G., Birch, W. R., and Powell, R. G. 1959. The uptake of growth substances. I. Factors controlling the uptake of phenoxyacetic acid by Lemna minor . J. Exp. Bot. 10:3354.
3. Davies, P. J. and Seaman, D. E. 1968. Uptake and translocation of diquat in Elodea . Weed Sci. 16:293295.
4. Foy, C. L. and Yamaguchi, S. 1964. Mechanisms of root absorption of organic molecules, p. 328. In: Hacskaylo, J. (Ed.) Absorption and translocation of organic substances in plants. Seventh Annu. Symp. So. Sect. Amer. Soc. Plant Physiol.
5. Graham, J. C. and Buchholtz, K. P. 1968. Alteration of transpiration and dry matter with atrazine. Weed Sci. 16:389392.
6. Hoagland, D. R. and Snyder, W. C. 1933. Nutrition of strawberry plants under controlled conditions: (a) effects of deficiencies of boron and certain other elements: (b) susceptibility to injury from sodium salts. Proc. Amer. Soc. Hort. Sci. 30:288294.
7. Jenner, C. F., Saunders, P. F., and Blackman, G. E. 1968. The uptake of growth substances. X. The accumulation of phenoxyacetic acid and 2,4-dichlorophenoxyacetic acid by segments of Avena mesocotyl. J. Exp. Bot. 19:335352.
8. Johnson, C. M., Stout, P. R., Broyer, T. C., and Carlton, A. B. 1957. Comparative chlorine requirements of different plant species. Plant and Soil 8:337353.
9. Johnson, Mary P. and Bonner, J. 1956. The uptake of auxin by plant tissue. Physiol. Plant. 9:102118.
10. Prasad, R. and Blackman, G. E. 1965. Studies in the physiological action of 2,2-dichloropropionic acid. 111. Factors influencing the level of accumulation and mode of action. J. Exp. Bot. 16:545568.
11. Saunders, P. F., Jenner, C. F., and Blackman, G. E. 1966. The uptake of growth substances. VI. A comparative study of the factors determining the pattern of uptake of phenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid, weak and strong auxins by Gossypium tissues . J. Exp. Bot. 17:241269.
12. Wedding, R. T. and Erickson, L. C. 1957. The role of pH in the permeability of Chlorella to 2,4-D. Plant Physiol. 32: 503512.

Release of Herbicides by Soybean Roots in Culture Solutions

  • K. Moody (a1), C. A. Kust (a2) and K. P. Buchholtz (a2)


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