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Effect of hydration treatments on seed parameters of different lettuce (Lactuca sativa L.) seed lots

Author

Listed:
  • J. Pazdera

    (Czech University of Agriculture, Prague, Czech Republic)

  • V. Hosnedl

    (Czech University of Agriculture, Prague, Czech Republic)

Abstract

The influence of hydration treatments on seed parameters of lettuce seed lots with different initial quality was investigated. Nine seed lots were treated by prehydration (for 3, 6, 12 and 24 hours) and by osmopriming in polyethylene glycol 6,000 solution (for 24, 72 and 144 hours) with osmotic potential -1.5 MPa. The result of hydration treatment depends on seed lot attributes. The germination percentage is not a sufficient criterion for determination of seed suitability for hydration treatment. A possible complementary parameter can be the mean time of germination (MTG) with high correlation between untreated and treated seed lots. The effect of hydration also depends on the hydration method and time of treatment. The osmopriming is a more suitable method for lettuce seed than prehydration. Generally, a shorter time of hydration (till 6 hours at prehydration and till 72 hours at priming) proved more effective on the parameters of lettuce seed lots after treatment.

Suggested Citation

  • J. Pazdera & V. Hosnedl, 2002. "Effect of hydration treatments on seed parameters of different lettuce (Lactuca sativa L.) seed lots," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 29(1), pages 12-16.
    • Handle: RePEc:caa:jnlhor:v:29:y:2002:i:1:id:4464-hortsci
    DOI: 10.17221/4464-HORTSCI
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