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Describing Phytotoxic Effects on Cumulative Germination

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Abstract

Phytotoxic studies strongly depend on evaluation of germination responses, which implies the need for adequate procedures to account for distinct aspects of the germinative process. For this, indices, comparisons among treatments at various times, and model fitting have been proposed. The objective of this work is to compare the three approaches and select the one providing the greatest insight and precision. Speed of germination, speed of accumulated germination, the coefficient of the rate of germination, comparisons at each determination time, including final germination, and the parameters of the Weibull function were examined. The Weibull function proved the best approach to describe the germination process, providing not only the same type of information about the speed of germination, with greater precision, but also additional information about the initiation and shape of the germination response curve.

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REFERENCES

  • AN, M., PRATLEY, J. E., and HAIG, T. 1996. Differential phytotoxicity of Vulpiaspecies and their plant parts. Allelopathy J.3:185-194.

    Google Scholar 

  • BONNER, F. T., and DELL, T. R. 1976. The Weibull function: A new method of comparing seed vigor. J. Seed Technol.1:96-103.

    Google Scholar 

  • BOUTON, J. H., DUDECK, A. E., and SMITH, R. L. 1976. Germination in freshly harvested seed of centipedegrass. Agron. J.68:991-992.

    Google Scholar 

  • BROWN, R. F. 1987. Germination of Aristida armataunder constant and alternating temperatures and its analysis with the cumulative Weibull distribution as a model. Aust. J. Bot.35:581-591.

    Google Scholar 

  • BROWN, R. F., and MAYER, D. G. 1988. Representing cumulative germination. 2. The use of the Weibull function and other empirically derived curves. Ann. Bot.61:127-138.

    Google Scholar 

  • CHEW, V. 1976. Comparing treatment means: A compendium. HortScience11:348-357.

    Google Scholar 

  • CHIAPUSIO, G., SáNCHEZ, A. M., REIGOSA, M. J., GONZáLEZ, L., and PELLISSIER, F. 1997. Do germination indices adequately reflect allelochemical effects on the germination process J. Chem. Ecol.23:2445-2453.

    Google Scholar 

  • DIAS, L. S. 1991. Allelopathic activity of decomposing straw of wheat and oat and associated soil on some crop species. Soil Tillage Res.21:113-120.

    Google Scholar 

  • DIAS, L. S., PEREIRA, I. P., and DIAS, A. S. 1999. Research on allelopathy in Portugal, pp. 89-98, inS. S. Narwal (ed.). Allelopathy Update. 1. International Status. Science Publishers, Inc., Enfield, New Hampshire.

    Google Scholar 

  • EDWARDS, T. I. 1934. Relations of germinating soy beans to temperature and length of incubation time. Plant Physiol.9:1-30.

    Google Scholar 

  • EINHELLIG, F. A., SCHON, M. K., and RASMUSSEN, J. A. 1982. Synergistic effects of four cinnamic acid compounds on grain sorghum. J. Plant Growth Regul.1:251-258.

    Google Scholar 

  • GOODCHILD, N. A., and WALKER, M. G. 1971. A method of measuring seed germination in physiological studies. Ann. Bot.35:615-621.

    Google Scholar 

  • HSU, F. H., NELSON, C. J., and CHOW, W. S. 1984. A mathematical model to utilize the logistic function in germination and seedling growth. J. Exp. Bot.35:1629-1640.

    Google Scholar 

  • JANSSEN, J. G. M. 1973. A method of recording germination curves. Ann. Bot.37:705-708.

    Google Scholar 

  • KENDRICK, R. E., and FRANKLAND, B. 1969. Photocontrol of germination in Amaranthus caudatus. Planta (Berlin)85:326-329.

    Google Scholar 

  • KOTOWSKI, F. 1926. Temperature relations to germination of vegetable seed. Proc. Am. Soc. Hortic. Sci.23:176-181.

    Google Scholar 

  • LEHLE, F. R., and PUTNAM, A. R. 1982. Quantification of allelopathic potential of sorghum residues by novel indexing of Richard's function fitted to cumulative cress seed germination curves. Plant Physiol.69:1212-1216.

    Google Scholar 

  • MAGUIRE, J. D. 1962. Speed of germination-aid in selection and evaluation for seedling emergence and vigor. Crop Sci.2:176-177.

    Google Scholar 

  • RIETVELD, W. J. 1975. Phytotoxic grass residues reduce germination and initial root growth of ponderosa pine. USDA Forest Service, RP RM-153, 15 pp.

  • SCHIMPF, D. J., FLINT, S. D., and PALMBLAD, I. G. 1977. Representation of germination curves with the logistic function. Ann. Bot.41:1357-1360.

    Google Scholar 

  • THORNLEY, J. H. M. 1977. Germination of seeds and spores. Ann. Bot.41:1363-1365.

    Google Scholar 

  • WARDLE, D. A., NICHOLSON, K. S., and RAHMAN, A. 1996. Use of a comparative approach to identify allelopathic potential and relationship between allelopathy bioassays and “competition” experiments for ten grassland and plant species. J. Chem. Ecol.22:933-948.

    Google Scholar 

  • WEIBULL, W. 1951. A statistical distribution function of wide applicability. J. Appl. Mech.18:293-297.

    Google Scholar 

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  1. Departamento de Biologia, Centro de Ecologia Aplicada, Universidade de Évora, Ap. 94, 7002-554, Évora, Portugal

    L. S. Dias

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  1. L. S. Dias
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Dias, L.S. Describing Phytotoxic Effects on Cumulative Germination. J Chem Ecol 27, 411–418 (2001). https://doi.org/10.1023/A:1005644808956

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