Physiological response of Norway spruce (Picea abies) seedlings clone to drought stress | Fyziologická odozva klonov sadeníc smreka obyčajného (Picea abies) na stres suchom
2012
Leštianska, A., Technical University in Zvolen (Slovak Republic). Faculty of Forestry | Střelcová, K., Technical University in Zvolen (Slovak Republic). Faculty of Forestry | Kmeť, J., Technical University in Zvolen (Slovak Republic). Faculty of Forestry | Kurjak D., Technical University in Zvolen (Slovak Republic). Faculty of Forestry
Variability of signs and properties is an inherent component of each organism. Genetic diversity is the basis for adaptability, stability and evolution of species and forest tree population. A vessel experiment with clones of spruce (Picea abies (L.) Karst.) was established in order to specify knowledges about changes of physiological reaction in connection with the appearance, duration and intensity of drought. Using of clone is interesting in term of intraspecific variability elimination and determination of eventual deviation of genetically homogenous material in response on stress factors. There are changes of some chlorophyll a parameters (Fo, Fm, Fv, Fv/Fm, Area, Tm, Fm/Fo) during progressive drought stress presented. This is a standard biomarker for stress indication. One way ANOVA indicated significant differences (and sensibility to drought) of various clones. Marked changes were observed among clones more tolerant to drought stress and sensitive to drought.
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