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  • 1 Czech University of Life Sciences Prague Department of Agroecology and Biometeorology, Food and Natural Resources, Faculty of Agrobiology Prague Czech Republic
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This paper presents the results of a study on the estimation of drought impact on fluctuation yield cereal crops in Central Bohemia. Historical climate and crop yields data for the period of 47 years (1961–2007) have been integrated into an agrometeorological database. The objective of this paper was to determine the drought impact on yield of winter and spring cereals crops on an example for the Central Bohemian region. According to crops variability models the most of low yielding years (from 3 to 5 cases) were noticed at the beginning of the 1960s and 1970s, reaching their highest points in the decade of 1991–2000 (from 3 and 8 cases). In the case of the most serious crop failures in grain production in the Central Bohemian region (1964, 1976, 2000, 2003), droughts were responsible. In agreement with the developed model, the drought impact was associated with cereals detrended yield being smaller than y i(T) ≤ −05 σ . A year has the following types of drought impact: yield detrended of −05 σ ≥ y i(T) > − σ is a low drought effect; − σ ≥ y i(T) > −15 σ is a middle drought effect and y i(T) ≤ −15 σ means a high drought effect.

  • Calderini, D.F., Slafer, G.A. 1998. Changes in yield and yield stability in wheat during the 20th century. Field Crops Res. 57 :335–347.

    Slafer G.A. , 'Changes in yield and yield stability in wheat during the 20th century ' (1998 ) 57 Field Crops Res. : 335 -347.

    • Search Google Scholar
  • Chloupek, O., Hrstkova, P., Schweigert, P. 2004. Yield and its stability, crop diversity, adaptability and response to climate change, weather and fertilization over 75 years in the Czech Republic in comparison to some European countries. Field Crops Research 85 :168–189.

    Schweigert P. , 'Yield and its stability, crop diversity, adaptability and response to climate change, weather and fertilization over 75 years in the Czech Republic in comparison to some European countries ' (2004 ) 85 Field Crops Research : 168 -189.

    • Search Google Scholar
  • Ciais, Ph., Reichstein, M., Viovy, N., Granier, A., Ogée, J., Allard, V., Aubinet, M., Buchmann, N., Bernhofer, C., Carrara, A., Chevallier, F., De Noblet, N., Friend, A.D., Friedlingstein, P., Grünwald, T., Heinesch, B., Keronen, P., Knohl, A., Krinner, G., Loustau, D., Manca, G., Matteucci, G., Miglietta, F., Ourcival, J.M., Papale, D., Pilegaard, K., Rambal, S., Seufert, G., Soussana, J.F., Sanz, M.J., Schulze, E.D., Vesala, T., Valentini, R. 2005. Europe-wide reduction in primary productivity caused by the heat and drought in 2003. Nature 437 :529–533.

    Valentini R. , 'Europe-wide reduction in primary productivity caused by the heat and drought in 2003 ' (2005 ) 437 Nature : 529 -533.

    • Search Google Scholar
  • Claassen, M.M., Shaw, R.H. 1970. Water deficit effects on corn. II. Grain components. Agron. J. 62 :652–655.

    Shaw R.H. , 'Water deficit effects on corn. II. Grain components ' (1970 ) 62 Agron. J. : 652 -655.

    • Search Google Scholar
  • Craufurd, P.Q., Oeacock, J.M. 1993. Effect of heat and drought stress on sorghum. II. Grain yield. Exp. Agric. 29 :77–86.

    Oeacock J.M. , 'Effect of heat and drought stress on sorghum. II. Grain yield ' (1993 ) 29 Exp. Agric. : 77 -86.

    • Search Google Scholar
  • Dubrovsky, M., Zalud, Z., Stastna, T. 2000. Sensitivity of ceres-maize yields to statistical structure of daily weather series. Climatic Change 46 :447–472.

    Stastna T. , 'Sensitivity of ceres-maize yields to statistical structure of daily weather series ' (2000 ) 46 Climatic Change : 447 -472.

    • Search Google Scholar
  • FAO, Crop Monitoring Box documentation, 2006.

  • Konstantinov, T., Potop, V. 2005. Assessment of distribution hydrothermal regime in phenological growth stages and its influence on productivity of maize. Analele ştiinţifice ale USM. Seria “Ştiinţe chimicobiologice”, ISSN 1811-2617. Republic of Moldova, Chişinău, pp. 458–461.

  • Potop, V., Turkott, L. 2007. Estimation of dryness and drought in the agrometeorological year 2005/2006 in the Czech Republic. Bioclimatology and natural hazards. Polana nad Devitou, Slovakia, ISBN 978-80-228-17-60-8. 17.09.2007.

    Turkott L. , '', in Estimation of dryness and drought in the agrometeorological year 2005/2006 in the Czech Republic. Bioclimatology and natural hazards , (2007 ) -.

    • Search Google Scholar
  • Potop, V., Soukup, J. 2008a. Spatiotemporal characteristics of dryness and drought in the Republic of Moldova. Theoret. and Appl. Climat. Doi: 10.1007/s00704-008-0041-5

  • Potop, V., Turkott, L., Koznarova, V. 2008b. Methods for assessment of the drought using meteorological and biometrical indices in Czech Republic. Ceske Budejovice, ISBN 80-85645-58-0, pp. 213–215.

  • Potop, V., Koznarova, V. 2008c. Drought as natural hazard in the Czech Republic. 8th Annual Meeting of the Europe Meteorological Society, Vol. 5, EMS2008-A-00000. Amsterdam, Netherlands. 29.09.2008.

  • Potop, V., Turkott, L., Koznarova, V. 2008d. Spatiotemporal characteristics of drought in Czechia. Scientia Agriculturae Bohemica. 39 :258–268.

    Koznarova V. , 'Spatiotemporal characteristics of drought in Czechia ' (2008 ) 39 Scientia Agriculturae Bohemica : 258 -268.

    • Search Google Scholar
  • The Bologna X Congres of ESA “Multi-functional Agriculture — Agriculture as a Resource for Energy and Environmental Preservation”, Bologna (Italy), 15–19 September 2008.