References
- Lambou , V. W. 1972 . “Problem of mercury emissions in to the environment of the United States” . Report of USEPA , 4 January 27
- Lagerwerff , J. V. 1972 . “Lead mercury and cadmium as contaminants” micronutrient in Agriculture . Soil Sci. Soc. Amer. , 677 : 593–628
- Brown , J. C. and Jones , W. E. 1975 . “Heavy metals toxicity in plants I A crisis in embryo” . Commun. Soil Sci. Plant Anal. , 6 : 421 – 438 .
- Foy , C. D. , Chaney , R. L. and White , M. C. 1978 . “The physiology of metal toxicity in plants” . Ann. Rev. Plant Physiol. , 29 : 511 – 66 .
- Duxbury , A. C. and Yentsch , C. S. 1956 . “Plankton pigments monograph” . Mar. Res. , 15 : 92 – 101 .
- Hinesly , T. D. , Braids , O. C. and Malina , J. E. 1971 . “Agricultural benefits and environmental changes resulting from the use of digested sewage sludge on field crops” . In U.S. EPA Cincinnati, Ohio Solid waste demonstration grant G06‐EC‐00080
- Singh , V. P. and Mukhiya , Y. K. 1980 . “Toxicity assessment of three heavy metals mercury, lead and manganese on some germination aspects of Fagopyrum esculentum Moench” . buckwheat Symp. Ljubljana . Sept. 1–3 1980 . pp. 93–104
- Mukhiya , S. and Mitra , P. 1976 . “Toxic effects of lead on growth and metabolism of germinating rice seeds and on mitosis of onion root tip cells” . J. Exp. Biol. , 14 : 519 – 521 .
- Harris , R. C. , White , D. B. and MacFarlane , R. B. 1970 . ‘Mercury compounds reduce photosynthesis by Plankton” . Science , 170 : 736 – 737 .
- Agarwala , S. C. , Bisht , S. S. and Sharma , C. P. 1977 . “Relative effectiveness of certain heavy metals in producing toxicity and symptoms of iron deficiency in barley” . Can. J. Bot. , 55 : 1299 – 1307 .
- Higgins , I. J. and Burns , R. G. 1975 . The Chemistry and Microbiology of Pollution , London : Academic Press . Univ. of Kent at Canterbury, England