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Changes in cold hardiness of silver fir and larch bare-rooted seedlings during autumn and spring

Author

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  • M. Sarvaš

    (Forest Research Institute Zvolen, Zvolen, Slovak Republic)

Abstract

The objective of this study was to obtain information about changes in cold hardiness of larch and silver fir seedlings during autumn and spring by help of measurements of electrolyte leakage from shoots (SEL) and root system (REL). The values of electrolyte leakage from the untreated (control) root system of silver fir decreased during autumn (from 28% on September 25 to 24% on November 27). Minimum values were reached on March 26. A decrease in electrolyte leakage was found for silver fir shoots (SEL) (the maximum was detected on October 2 - 12% and minimum on November 27 - 7%). Contrary to REL, SEL increased in March. The rate of electrolyte leakage from treated (after artificial frost) roots and shoots decreased during autumn (REL and SEL minimum on November 27). The change in the rate of electrolyte leakage from untreated larch roots was similar to that from silver fir roots during autumn. The values continually decreased from 26% (on September 25) to 12% (on November 27). The course of electrolyte leakage from the treated root system was similar for both species. The differences between electrolyte leakage from larch shoots (treated und untreated ones) were statistically significant, but without any clear tendency during autumn.

Suggested Citation

  • M. Sarvaš, 2004. "Changes in cold hardiness of silver fir and larch bare-rooted seedlings during autumn and spring," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 50(5), pages 237-242.
    • Handle: RePEc:caa:jnljfs:v:50:y:2004:i:5:id:4620-jfs
    DOI: 10.17221/4620-JFS
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    References listed on IDEAS

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    1. M. Sarvaš, 2003. "Change of cold hardiness in bare-rooted Norway spruce planting stock during autumn and its effect on survival," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 49(3), pages 133-139.
    2. M. Sarvaš, 2002. "Determination of effects of desiccation and frost stresses on the physiological quality of Norway spruce (Picea abies [L.] Karst.) seedlings by measurement of electrolyte leakage from the root system," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 48(8), pages 366-371.
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