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Some Physiological Effects of Triazines on Citrus Trees

Published online by Cambridge University Press:  12 June 2017

R. Goren  and
S. P. Monselise
R. Goren
Affiliation:
Department of Citriculture, Faculty of Agriculture, Hebrew University, Rehovot, Israel
S. P. Monselise
Affiliation:
Department of Citriculture, Faculty of Agriculture, Hebrew University, Rehovot, Israel
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Abstract

Effects of simazine (2-chloro-4,6-bis(ethylamino)-s-triazine) and atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) were observed when applied in connection with 3-amino-1,2,4-triazole (amitrole) to citrus trees. The amitrole had no significant effect. In heavy soil, atrazine toxicity to citrus trees was found during the summer following applications after a period of severe hot dry wind. The leaves became bronzed and dried, growth was checked, dry matter, chlorophyll, and catalase activity of leaves reduced, and their peroxidase activity increased when compared with controls from unsprayed plots; ascorbic acid content of leaves also was affected. Simazine, on the contrary, enhanced growth of trees, total and protein nitrogen and chlorophyll in leaves, did not affect peroxidase, catalase or ascorbic acid, and only slightly depressed dry matter content. In a light soil, probably due to less residual triazines, no toxic effects were observed and untreated controls evinced less growth, lower chlorophyll and nitrogen content of leaves, and higher peroxidase activity than all triazine treatments.

Type
Research Article
Information
Weeds , Volume 14 , Issue 2 , April 1966 , pp. 141 - 144
Copyright
Copyright © 1966 Weed Science Society of America 

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References

Literature Cited

1. Audus, L. I. 1964. The physiology and biochemistry of herbicides. Academic Press, London and New York. pp. 555.Google Scholar
2. Eastin, E. F., Palmer, R. D., and Grogan, C.O. 1964. Effect of atrazine on catalase and peroxidase in resistant and susceptible lines of corn. Weeds 12:64–65.CrossRefGoogle Scholar
3. Farkas, G. L., Dezsi, L., Horváth, M., Kisbán, K., and Unvardy, I. 1964. Common pattern of enzymatic changes in detached leaves and tissues, attacked by parasites. Phytopath. Zeitschrift 49:343–354.Google Scholar
4. Gagnon, M., Hunting, W. M., and Esselen, W. B. 1959. New method of catalase determination. Anal. Chem. 31:144–145.CrossRefGoogle Scholar
5. Goren, R. and Monselise, S. P. 1965. Interactions of hesperidin, some natural components and enzymatic systems in developing Shamouti orange fruits. J. Hort. Sci. 40:83–99.CrossRefGoogle Scholar
6. Halevy, A. H. 1956. Orange leaf transpiration under orchard conditions. V. Influence of leaf age and changing exposure to light on transpiration on normal and dry summer days. Bull. Res. Council Israel. 5D: 165–175.Google Scholar
7. Mackinney, G. 1941. Absorption of light by chlorophyll solutions. J. Biol. Chem. 140:315–322.CrossRefGoogle Scholar
8. Mastakov, S. M., and Prohorak, R. A. 1962. An investigation of triazine products as regulators of plant growth. 2. The effect of simazine and atrazine on the content of chlorophyll in the leaves of crop plants (Russian). Dokl. Akad. Nauk. Beloruss. S.S.R. 6:517–520. (Ref. Field Crop Abstr. 16, 51. 1963).Google Scholar
9. Monselise, S. P., and Goren, R. 1965. Some physiological properties of leaves and bark of psorosis affected Valencia orange trees, (in press) In Price, W. C. (Ed.), Proc, 3rd Conf. Intern. Organ. Citrus Virol., Univ. Florida Press.Google Scholar
10. Ries, S. K., Larsen, R. P., and Kenworthy, A. I. 1963. The apparent influence of simazine on nitrogen nutrition of peach and apple trees. Weeds 11:270–273.CrossRefGoogle Scholar
11. Roe, J. H. 1954. Chemical determination of ascorbic, dehydroascorbic and dichetogulonic acids, p. 115–139. In Glick, D. (Ed.), Methods of biochemical analysis. Interscience Publ. N. Y., Vol. 1.CrossRefGoogle Scholar
12. Umbreit, W. W., Burris, R. H., and Stauffer, J. F. 1959. Manometric techniques. Burgess Publ. Co., Minneapolis. 338 p.Google Scholar