2018
|
 | Pšidová, E; Živčák, M; adn Orlović, Stojnić S S; Gömöry, D; Kučerová, J; Ditmarová, Ľ; Střelcová, K; Brestič, M; Kalaji, H M Altitude of origin influences the responses of PSII photochemistry to heat waves in European beech (Fagus sylvatica L.) Journal Article Environmental and Experimental Botany, 152 , pp. 97-106, 2018, ISSN: 00988472. Abstract | Links | BibTeX @article{Pšidová2018,
title = {Altitude of origin influences the responses of PSII photochemistry to heat waves in European beech (Fagus sylvatica L.)},
author = {E. Pšidová and M. Živčák and S. Stojnić adn S. Orlović and D. Gömöry and J. Kučerová and Ľ. Ditmarová and K. Střelcová and M. Brestič and H.M. Kalaji},
doi = {10.1016/j.envexpbot.2017.12.001},
issn = {00988472},
year = {2018},
date = {2018-01-01},
journal = {Environmental and Experimental Botany},
volume = {152},
pages = {97-106},
abstract = {The photosynthetic responses to the combined effect of drought and heat stress were studied in leaves of 19-years-old European beech (Fagus sylvatica L.) trees originating from five provenances in Central Europe differing by altitude (55–1250 m), and grown in the same experimental plot. The measurements were conducted at the beginning of heat waves, under two different conditions: during a dry period (middle of July) and after recovery in wetter period, at the beginning of August. The decreases of stomatal conductance (gs) and net photosynthesis rate (ACO2) during drought and heat wave stress were very similar in all provenances. However, we observed distinct response of PSII photochemistry on combined drought and high temperature stress, well associated with altitude of origin of the beech provenances. Measurements of pulse amplitude modulated (PAM) fluorescence identified maintenance of a high electron transport rate in beech provenances from high altitudes under drought and heat wave conditions, associated with some decrease of excitation pressure on PSII. This can be explained by enhanced capacity of alternative electron sinks to utilize the excess of electrons as a photoprotective mechanism. The analyses of fast chlorophyll fluorescence kinetics confirmed the differences in responses of PSII photochemistry between provenances originating from different altitudes. Compared with provenances at higher altitudes, we found more sensitive response (i.e. more limited electron transport at the PSII acceptor side and changes in the size of light harvesting complexes) to drought and heat stress, in those growing at low altitudes. Our results support the hypothesis that the provenances originating from higher altitudes possess enhanced phenotypic plasticity related to photoprotective responses, resulting from the long-term adaptation to marginal mountain conditions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The photosynthetic responses to the combined effect of drought and heat stress were studied in leaves of 19-years-old European beech (Fagus sylvatica L.) trees originating from five provenances in Central Europe differing by altitude (55–1250 m), and grown in the same experimental plot. The measurements were conducted at the beginning of heat waves, under two different conditions: during a dry period (middle of July) and after recovery in wetter period, at the beginning of August. The decreases of stomatal conductance (gs) and net photosynthesis rate (ACO2) during drought and heat wave stress were very similar in all provenances. However, we observed distinct response of PSII photochemistry on combined drought and high temperature stress, well associated with altitude of origin of the beech provenances. Measurements of pulse amplitude modulated (PAM) fluorescence identified maintenance of a high electron transport rate in beech provenances from high altitudes under drought and heat wave conditions, associated with some decrease of excitation pressure on PSII. This can be explained by enhanced capacity of alternative electron sinks to utilize the excess of electrons as a photoprotective mechanism. The analyses of fast chlorophyll fluorescence kinetics confirmed the differences in responses of PSII photochemistry between provenances originating from different altitudes. Compared with provenances at higher altitudes, we found more sensitive response (i.e. more limited electron transport at the PSII acceptor side and changes in the size of light harvesting complexes) to drought and heat stress, in those growing at low altitudes. Our results support the hypothesis that the provenances originating from higher altitudes possess enhanced phenotypic plasticity related to photoprotective responses, resulting from the long-term adaptation to marginal mountain conditions. |
 | Kučerová, Jana; Konôpková, Alena; Pšidová, Eva; Kurjak, Daniel; Jamnická, Gabriela; Slugenová, Kristína; Gömöry, Dušan; Ditmarová, Ľubica Adaptive variation in physiological traits of beech provenances in Central Europe Journal Article iForest-Biogeosciences and Forestry, 11 (1), pp. 24-31, 2018. Abstract | Links | BibTeX @article{adnKonôpková2018,
title = {Adaptive variation in physiological traits of beech provenances in Central Europe},
author = {Jana Kučerová and Alena Konôpková and Eva Pšidová and Daniel Kurjak and Gabriela Jamnická and Kristína Slugenová and Dušan Gömöry and Ľubica Ditmarová},
doi = {10.3832/ifor2291-010},
year = {2018},
date = {2018-01-01},
journal = {iForest-Biogeosciences and Forestry},
volume = {11},
number = {1},
pages = {24-31},
abstract = { Current climate changes can led to a decline of local beech populations fully adapted to previous climate conditions. In this context, the issue of variation in adaptive traits becomes important. A field experiment with 18-year-old trees of Fagus sylvatica L. was conducted on provenance plot located in Tále (Central Slovakia), where physiological responses of five beech provenances originating from contrasting sites along an altitudinal gradient from 55 to 1100 m a.s.l. across the range of the natural beech distribution were studied. Stomatal characteristics, parameters of chlorophyll a fluorescence and gas exchange parameters were determined. Overall, we observed a significant increase in physiological performance at the leaf level with increasing altitude of origin. Provenances from the higher altitudes showed higher CO2 assimilation rate, stomatal density, potential conductance indices and photochemical efficiency, and lower capability for dissipation of energy by heat. A similar pattern of response was recorded in relation to the precipitation regime of sites of origin. Moreover, in the context of the temperature regime, several negative trends were observed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Current climate changes can led to a decline of local beech populations fully adapted to previous climate conditions. In this context, the issue of variation in adaptive traits becomes important. A field experiment with 18-year-old trees of Fagus sylvatica L. was conducted on provenance plot located in Tále (Central Slovakia), where physiological responses of five beech provenances originating from contrasting sites along an altitudinal gradient from 55 to 1100 m a.s.l. across the range of the natural beech distribution were studied. Stomatal characteristics, parameters of chlorophyll a fluorescence and gas exchange parameters were determined. Overall, we observed a significant increase in physiological performance at the leaf level with increasing altitude of origin. Provenances from the higher altitudes showed higher CO2 assimilation rate, stomatal density, potential conductance indices and photochemical efficiency, and lower capability for dissipation of energy by heat. A similar pattern of response was recorded in relation to the precipitation regime of sites of origin. Moreover, in the context of the temperature regime, several negative trends were observed. |
2017
|
 | Krajmerová, D; Hrivnák, M; Ditmarová, Ľ; Jamnická, G; Kmeť, J; Kurjak, D; Gömöry, D Nucleotide polymorphisms associated with climate, phenology and physiological traits in European beech (Fagus sylvatica L.) Journal Article New Forests, 48 (3), pp. 463-477, 2017. BibTeX @article{Krajmerová2017,
title = {Nucleotide polymorphisms associated with climate, phenology and physiological traits in European beech (Fagus sylvatica L.)},
author = {D. Krajmerová and M. Hrivnák and Ľ. Ditmarová and G. Jamnická and J. Kmeť and D. Kurjak and D. Gömöry},
year = {2017},
date = {2017-01-01},
journal = {New Forests},
volume = {48},
number = {3},
pages = {463-477},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2016
|
 | Bolte, A; Czajkowski, T; Cocozza, C; Tognetti, R; De_Miguel, M; Pšídová, E; Ditmarová, Ľ; Dinca, L; Dlezon, S; Cochard, H; Ræbild, A; De_Luis, M; Cvjetkovic, B; Heiri, C; Müller, J Desiccation and Mortality Dynamics in Seedlings of Different European Beech (Fagus sylvatica L.) Populations under Extreme Drought Conditions Journal Article Front. Plant Sci., 7 (751), 2016. Links | BibTeX @article{Bolte2016,
title = {Desiccation and Mortality Dynamics in Seedlings of Different European Beech (Fagus sylvatica L.) Populations under Extreme Drought Conditions},
author = {A. Bolte and T. Czajkowski and C. Cocozza and R. Tognetti and M. De_Miguel and E. Pšídová and Ľ. Ditmarová and L. Dinca and S. Dlezon and H. Cochard and A. Ræbild and M. De_Luis and B. Cvjetkovic and C. Heiri and J. Müller},
doi = {10.3389/fpls.2016.00751},
year = {2016},
date = {2016-01-01},
journal = {Front. Plant Sci.},
volume = {7},
number = {751},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Cocozza, C; De_Miguel, M; Pšidová, E; Ditmarová, Ľ; Marino, S; Maiuro, L; Alvino, A; Czajkowski, T; Bolte, A; Tognetti, R Variation in Ecophysiological Traits and Drought Tolerance of Beech (Fagus sylvatica L.) Seedlings from Different Populations Journal Article Front. Plant Sci., 7 (886), 2016. Links | BibTeX @article{Cocozza2016,
title = {Variation in Ecophysiological Traits and Drought Tolerance of Beech (Fagus sylvatica L.) Seedlings from Different Populations},
author = {C. Cocozza and M. De_Miguel and E. Pšidová and Ľ. Ditmarová and S. Marino and L. Maiuro and A. Alvino and T. Czajkowski and A. Bolte and R. Tognetti},
doi = {10.3389/fpls.2016.00886},
year = {2016},
date = {2016-01-01},
journal = {Front. Plant Sci.},
volume = {7},
number = {886},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Ježík, M; Blaženec, M; Kučera, J; Střelcová, K; Ditmarová, Ľ The response of intra-annual stem circumference increase of young European beech provenances to 2012-2014 weather variability Journal Article i-Forest, 9 (6), pp. 960-969, 2016, ISSN: 1971-7458. Abstract | Links | BibTeX @article{Ježík2016,
title = {The response of intra-annual stem circumference increase of young European beech provenances to 2012-2014 weather variability},
author = {M. Ježík and M. Blaženec and J. Kučera and K. Střelcová and Ľ. Ditmarová},
url = {http://www.sisef.it/iforest/contents/?id=ifor1829-009},
doi = {10.3832/ifor1829-009},
issn = {1971-7458},
year = {2016},
date = {2016-01-01},
journal = {i-Forest},
volume = {9},
number = {6},
pages = {960-969},
abstract = {The increasing frequency and severity of extreme weather events, especially droughts, arising from on-going climate changes negatively affect productivity and stability of forest ecosystems. Understanding species responses and suitable ecotypes that are able of adapting to new environmental conditions is increasingly important. The objective of this study was to quantify the relationships between the inter-annual stem circumference increase (SCI) of five European beech (Fagus sylvatica L.) provenances and weather variability during 2012-2014 in a provenance trial located in central Slovakia. SCIs were extracted on daily and weekly scale from hourly data of circumference changes. To detect the main environmental factors influencing SCI seasonal dynamics, intra-seasonal moving correlation functions were calculated. All five provenances responded synchronously to weather conditions, with high correlations among them during the growing season on both daily and weekly scale. The photoperiod exhibited a synchronizing effect on the seasonal peak of SCI as a sign of tree adaptation to long-term seasonal variations in climate. Temperature was the most significant factor influencing SCI dynamics at the beginning of the season. During the summer months, a precipitation deficit, heat waves and the consequently decreased soil water potential significantly affected the SCI of young beech trees, despite the fact that the provenance plot was situated in an area of optimum beech growth. Not only the severity and duration were important but also the timing of drought within a season. Within all seasons, the lowest SCI values were recorded for the provenance from the lowest altitude and the most oceanic climate (northern Germany). A comparison of daily and weekly SCI with first derivatives of growth functions indicated that SCIs were closely related to theoretical incremental processes, especially on a weekly scale. In young beech trees, SCI seemed to represent an appropriate proxy for studying intra-seasonal incremental processes. A newly designed SASB (self adjusting sharp beginning) function fit these processes better than the Gompertz function.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The increasing frequency and severity of extreme weather events, especially droughts, arising from on-going climate changes negatively affect productivity and stability of forest ecosystems. Understanding species responses and suitable ecotypes that are able of adapting to new environmental conditions is increasingly important. The objective of this study was to quantify the relationships between the inter-annual stem circumference increase (SCI) of five European beech (Fagus sylvatica L.) provenances and weather variability during 2012-2014 in a provenance trial located in central Slovakia. SCIs were extracted on daily and weekly scale from hourly data of circumference changes. To detect the main environmental factors influencing SCI seasonal dynamics, intra-seasonal moving correlation functions were calculated. All five provenances responded synchronously to weather conditions, with high correlations among them during the growing season on both daily and weekly scale. The photoperiod exhibited a synchronizing effect on the seasonal peak of SCI as a sign of tree adaptation to long-term seasonal variations in climate. Temperature was the most significant factor influencing SCI dynamics at the beginning of the season. During the summer months, a precipitation deficit, heat waves and the consequently decreased soil water potential significantly affected the SCI of young beech trees, despite the fact that the provenance plot was situated in an area of optimum beech growth. Not only the severity and duration were important but also the timing of drought within a season. Within all seasons, the lowest SCI values were recorded for the provenance from the lowest altitude and the most oceanic climate (northern Germany). A comparison of daily and weekly SCI with first derivatives of growth functions indicated that SCIs were closely related to theoretical incremental processes, especially on a weekly scale. In young beech trees, SCI seemed to represent an appropriate proxy for studying intra-seasonal incremental processes. A newly designed SASB (self adjusting sharp beginning) function fit these processes better than the Gompertz function. |
2015
|
 | Gömöry, D; Ditmarová, Ľ; Hrivnák, M; Jamnická, G; Kmeť, J; Krajmerová, D; Kurjak, D Differentiation in phenological and physiological traits in European beech (Fagus sylvatica L.). Journal Article European Journal of Forest Research, 134 (6), pp. 1075–1085, 2015. Links | BibTeX @article{D.2015,
title = {Differentiation in phenological and physiological traits in European beech \textit{(Fagus sylvatica L.).}},
author = {D. Gömöry and Ľ. Ditmarová and M. Hrivnák and G. Jamnická and J. Kmeť and D. Krajmerová and D. Kurjak},
url = {http://link.springer.com/article/10.1007/s10342-015-0910-2},
year = {2015},
date = {2015-09-15},
journal = {European Journal of Forest Research},
volume = {134},
number = {6},
pages = {1075–1085},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Ježík, M; Blaženec, M; Letts, M G; Ditmarová, Ľ; Sitková, Z; Střelcová, K Assessing seasonal drought stress response in Norway spruce (Picea abies (L.) Karst.) by monitoring stem circumference and sap flow Journal Article Ecohydrology, 8 (3), pp. 378–386, 2015. Links | BibTeX @article{M.2015b,
title = {Assessing seasonal drought stress response in Norway spruce (\textit{Picea abies} (L.) Karst.) by monitoring stem circumference and sap flow},
author = {M. Ježík and M. Blaženec and M.G. Letts and Ľ. Ditmarová and Z. Sitková and K. Střelcová},
url = {http://onlinelibrary.wiley.com/doi/10.1002/eco.1536/full},
year = {2015},
date = {2015-04-01},
journal = {Ecohydrology},
volume = {8},
number = {3},
pages = {378–386},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Pšidová, E; Ditmarová, Ľ; Jamnická, G; Kurjak, D; Majerová, J; Czajkowski, T; Bolte, A Photosynthetic response of beech seedlings of different origin to water deficit Journal Article Photosynthetica, 53 (2), pp. 187–194, 2015. Links | BibTeX @article{E.2015,
title = {Photosynthetic response of beech seedlings of different origin to water deficit},
author = {E. Pšidová and Ľ. Ditmarová and G. Jamnická and D. Kurjak and J. Majerová and T. Czajkowski and A. Bolte},
url = {http://link.springer.com/article/10.1007/s11099-015-0101-x},
year = {2015},
date = {2015-03-02},
journal = {Photosynthetica},
volume = {53},
number = {2},
pages = {187–194},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2013
|
 | Střelcová, K; Kurjak, D; Leštianska, A; Kovalčíková, D; Ditmarová, Ľ; Škvarenina, J; Ahmed, Y A R Differences in transpiration of Norway spruce drought stressed trees and trees well supplied with water Journal Article Biologia, 68 (6), pp. 1118–1122, 2013. Links | BibTeX @article{K.2013,
title = {Differences in transpiration of Norway spruce drought stressed trees and trees well supplied with water},
author = {K. Střelcová and D. Kurjak and A. Leštianska and D. Kovalčíková and Ľ. Ditmarová and J. Škvarenina and Y.A.R. Ahmed},
url = {http://link.springer.com/article/10.2478/s11756-013-0257-4},
year = {2013},
date = {2013-10-20},
journal = {Biologia},
volume = {68},
number = {6},
pages = {1118–1122},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Jamnická, G; Ditmarová, Ľ; Kurjak, D; Kmeť, J; Pšidová, E; Macková, M; Gömöry, D; Střelcová, K The soil hydrogel improved photosynthetic performance of beech seedlings treated under drought Journal Article Plant Soil and Environment, 59 (10), pp. 446-451, 2013. Links | BibTeX @article{G.2013,
title = {The soil hydrogel improved photosynthetic performance of beech seedlings treated under drought},
author = {G. Jamnická and Ľ. Ditmarová and D. Kurjak and J. Kmeť and E. Pšidová and M. Macková and D. Gömöry and K. Střelcová},
url = {http://www.agriculturejournals.cz/publicFiles/102483.pdf},
year = {2013},
date = {2013-09-10},
journal = {Plant Soil and Environment},
volume = {59},
number = {10},
pages = {446-451},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Pšidová, E; Ditmarová, Ľ; Jamnická, G; Váľka, J; Gömöry, D Assessment of the impact of drought stress on particular biochemical and physiological characteristics of beech saplings leaves from different provenances Journal Article Folia Oecologica, 40 (1), pp. 97-106, 2013, ISSN: 1336-5266. Abstract | Links | BibTeX @article{Pšidová2013,
title = {Assessment of the impact of drought stress on particular biochemical and physiological characteristics of beech saplings leaves from different provenances},
author = {E. Pšidová and Ľ. Ditmarová and G. Jamnická and J. Váľka and D. Gömöry},
url = {http://ife.sk/wp-content/uploads/2016/10/Psidova.pdf},
issn = {1336-5266},
year = {2013},
date = {2013-01-01},
journal = {Folia Oecologica},
volume = {40},
number = {1},
pages = {97-106},
abstract = {There were studied particular biochemical and physiological characteristics of European beech
(Fagus sylvatica L.) saplings of different origin, responding to different water supply. Three
different provenances (PV1, PV2, and PV3) representing the lower margin, the upper margin of
beech distribution range and the optimal growth and environmental conditions for this species
were investigated in a control (well-watered) and a drought treatment. For each provenance,
the water potential values (Ψw) towards the end of the experiment were found low, indicating
a severe water stress. However, there were not observed significant differences in decreasing Ψw
values between the studied provenances. There were also recorded significant decreasing osmotic
potential values (Ψs) influenced by drought. In the saplings of the PV2 provenance, the plants
deprived of watering (drought treatment) showed the largest decrease of osmotic potential values.
All provenances showed significant impacts of drought on the content of assimilatory pigments
(Chl a, Chl b, Chl a + b, Chl a/b, Chl/Car). Nevertheless, the observed changes in individual
provenances did not differ significantly. The analysis of the response to the controlled water deficit
confirmed that the proline content increased significantly for all provenances. The largest increase
in the proline concentration was observed in PV2 provenance. These results imply that the most
sensitive to water deficit was the provenance PV2 from the optimal ecological beech area.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
There were studied particular biochemical and physiological characteristics of European beech
(Fagus sylvatica L.) saplings of different origin, responding to different water supply. Three
different provenances (PV1, PV2, and PV3) representing the lower margin, the upper margin of
beech distribution range and the optimal growth and environmental conditions for this species
were investigated in a control (well-watered) and a drought treatment. For each provenance,
the water potential values (Ψw) towards the end of the experiment were found low, indicating
a severe water stress. However, there were not observed significant differences in decreasing Ψw
values between the studied provenances. There were also recorded significant decreasing osmotic
potential values (Ψs) influenced by drought. In the saplings of the PV2 provenance, the plants
deprived of watering (drought treatment) showed the largest decrease of osmotic potential values.
All provenances showed significant impacts of drought on the content of assimilatory pigments
(Chl a, Chl b, Chl a + b, Chl a/b, Chl/Car). Nevertheless, the observed changes in individual
provenances did not differ significantly. The analysis of the response to the controlled water deficit
confirmed that the proline content increased significantly for all provenances. The largest increase
in the proline concentration was observed in PV2 provenance. These results imply that the most
sensitive to water deficit was the provenance PV2 from the optimal ecological beech area. |
2012
|
 | Kurjak, D; Střelcová, K; Ditmarová, Ľ; Priwitzer, T; Kmeť, J; Homolák, M; Pichler, V Physiological response of irrigated and non-irrigated Norway spruce trees as a consequence of drought in field conditions Journal Article European Journal of Forest Research, 131 (6), pp. 1737–1746, 2012. Links | BibTeX @article{D.2012,
title = {Physiological response of irrigated and non-irrigated Norway spruce trees as a consequence of drought in field conditions},
author = {D. Kurjak and K. Střelcová and Ľ. Ditmarová and T. Priwitzer and J. Kmeť and M. Homolák and V. Pichler},
url = {http://link.springer.com/article/10.1007/s10342-012-0611-z},
year = {2012},
date = {2012-03-22},
journal = {European Journal of Forest Research},
volume = {131},
number = {6},
pages = {1737–1746},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Kovalčíková, D; Střeclová, K; Ditmarová, Ľ Measurement of European beech transpiration rate under drought stress Journal Article Folia Oecologica, 39 (1), pp. 36-44, 2012, ISSN: 1336-5266. Abstract | Links | BibTeX @article{Kovalčíková2012,
title = {Measurement of European beech transpiration rate under drought stress},
author = {D. Kovalčíková and K. Střeclová and Ľ. Ditmarová},
url = {http://ife.sk/wp-content/uploads/2016/10/kovalcikova_web.pdf},
issn = {1336-5266},
year = {2012},
date = {2012-01-01},
journal = {Folia Oecologica},
volume = {39},
number = {1},
pages = {36-44},
abstract = {The paper presents results of a pilot measurement of transpiration rate in European beech plants under drought stress. The measurement was carried out with “Baby EMS 62 modular sap flow systems for small stems or branches”. The plants used for measuring the transpiration rate were 4-year-old, the measurements was carried out in the summer 2010. The trees were divided into two groups: a drought-stressed group and a regularly irrigated (control) group. The simulation of drought started on July 9 2010, the measurement of sap flow on August 20 2010. In order to find out the possibility for the transpiration recovery, irrigation was applied after a severe drought exposure on the drought-stressed plants on August 24 2010. Despite expectations, the irrigation did not influence transpiration of the drought-stressed plants, although the absolute value of the soil water potential dropped to a minimum. The drought-stressed individuals achieved substantially lower values of transpiration rate, both before and after irrigation, in comparison with the control group. Further, dependence between transpiration and meteorological factors was investigated. The meteorological factors in concern are continually recorded at the mesoclimatic station situated in the “Borová hora” Arboretum. The values of transpiration rate for the drought-stressed individuals were less dependent on meteorological factors (relation fitted with a polynomial regression function of the second order) than for the control plants.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The paper presents results of a pilot measurement of transpiration rate in European beech plants under drought stress. The measurement was carried out with “Baby EMS 62 modular sap flow systems for small stems or branches”. The plants used for measuring the transpiration rate were 4-year-old, the measurements was carried out in the summer 2010. The trees were divided into two groups: a drought-stressed group and a regularly irrigated (control) group. The simulation of drought started on July 9 2010, the measurement of sap flow on August 20 2010. In order to find out the possibility for the transpiration recovery, irrigation was applied after a severe drought exposure on the drought-stressed plants on August 24 2010. Despite expectations, the irrigation did not influence transpiration of the drought-stressed plants, although the absolute value of the soil water potential dropped to a minimum. The drought-stressed individuals achieved substantially lower values of transpiration rate, both before and after irrigation, in comparison with the control group. Further, dependence between transpiration and meteorological factors was investigated. The meteorological factors in concern are continually recorded at the mesoclimatic station situated in the “Borová hora” Arboretum. The values of transpiration rate for the drought-stressed individuals were less dependent on meteorological factors (relation fitted with a polynomial regression function of the second order) than for the control plants. |
 | Pšidová, E; Jamnická, G; Ditmarová, Ľ A preliminary study on physiological changes of Central European beech provenances in response to progressive drought stress Journal Article Folia Oecologica, 39 (1), pp. 63-70, 2012, ISSN: 1336-5266. Abstract | Links | BibTeX @article{Pšidová2012,
title = {A preliminary study on physiological changes of Central European beech provenances in response to progressive drought stress},
author = {E. Pšidová and G. Jamnická and Ľ. Ditmarová},
url = {http://ife.sk/wp-content/uploads/2016/10/psidova_web.pdf},
issn = {1336-5266},
year = {2012},
date = {2012-01-01},
journal = {Folia Oecologica},
volume = {39},
number = {1},
pages = {63-70},
abstract = {Four-year seedlings of two European beech ecotypes (Fagus sylvatica L.) were grown under well-watered and drought conditions for 51 days. Two populations were from the same medium-wet climatic region, but they differed in altitude. The results showed that there were significant differences in responses to different watering regimes in both provenances tested. Drought reduced quantum yield of photosystem II (PS II), decreased electron transport rate (ETR) through photosystem II and photochemical quenching (qP). More dissipation of energy excess (qN) was found in PV1 under drought-stress conditions. Water-deficit was associated with increases in proline content. Moreover, drought-treated seedlings of both provenances had significantly decreased chlorophyll pigment contents (Chl a, Chl b, Chl a + b) and carotenoids (Car x + c). Drought also influenced the height and stem diameter of seedlings. However, the differences between the provenances were statistically significant in drought stressed plants only in case of proline content and fluorescence parameter qN.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Four-year seedlings of two European beech ecotypes (Fagus sylvatica L.) were grown under well-watered and drought conditions for 51 days. Two populations were from the same medium-wet climatic region, but they differed in altitude. The results showed that there were significant differences in responses to different watering regimes in both provenances tested. Drought reduced quantum yield of photosystem II (PS II), decreased electron transport rate (ETR) through photosystem II and photochemical quenching (qP). More dissipation of energy excess (qN) was found in PV1 under drought-stress conditions. Water-deficit was associated with increases in proline content. Moreover, drought-treated seedlings of both provenances had significantly decreased chlorophyll pigment contents (Chl a, Chl b, Chl a + b) and carotenoids (Car x + c). Drought also influenced the height and stem diameter of seedlings. However, the differences between the provenances were statistically significant in drought stressed plants only in case of proline content and fluorescence parameter qN. |
2011
|
 | Ježík, M; Blaženec, M; Střelcová, K; Ditmarová, Ľ The impact of the 2003-2008 weather variability on intra-annual stem diameter changes of beech trees at a submontane site in central Slovakia Journal Article Dendrochronologia, 29 , pp. 227-235, 2011. BibTeX @article{Ježík2011,
title = {The impact of the 2003-2008 weather variability on intra-annual stem diameter changes of beech trees at a submontane site in central Slovakia},
author = {M. Ježík and M. Blaženec and K. Střelcová and Ľ. Ditmarová},
year = {2011},
date = {2011-01-01},
journal = {Dendrochronologia},
volume = {29},
pages = {227-235},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
![Drought and aluminium as stress factors in Norway spruce (Picea abies [L.]Karst) seedlings](https://ife.sk/wp-content/uploads/2016/10/IFE_ditmarova_lubica_image16.png) | Slugeňová, K; Ditmarová, Ľ; Kurjak, D; Váľka, J Drought and aluminium as stress factors in Norway spruce (Picea abies [L.]Karst) seedlings Journal Article Journal of Forest Science, 57 (12), pp. 547-554, 2011. BibTeX @article{Slugeňová2011,
title = {Drought and aluminium as stress factors in Norway spruce (Picea abies [L.]Karst) seedlings},
author = {K. Slugeňová and Ľ. Ditmarová and D. Kurjak and J. Váľka},
year = {2011},
date = {2011-01-01},
journal = {Journal of Forest Science},
volume = {57},
number = {12},
pages = {547-554},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2010
|
 | Ditmarová, Ľ; Kurjak, D; Palmroth, S; Kmeť, J; Střelcová, K Physiological responses of Norway spruce (Picea abies) seedlings to drought stress Journal Article Tree Physiol, 30 (2), pp. 205-213, 2010. BibTeX @article{Ditmarová2010,
title = {Physiological responses of Norway spruce (Picea abies) seedlings to drought stress},
author = {Ľ. Ditmarová and D. Kurjak and S. Palmroth and J. Kmeť and K. Střelcová},
year = {2010},
date = {2010-01-01},
journal = {Tree Physiol},
volume = {30},
number = {2},
pages = {205-213},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Kmeť, J; Ditmarová, Ľ; Priwitzer, T; Kurjak, D; Baláž, P; Blaženec, M Physiological limits – a possible cause of spruce decline Journal Article Beskydy, 3 (1), pp. 55-64, 2010, ISSN: 1803-2451. BibTeX @article{Kmeť2010,
title = {Physiological limits – a possible cause of spruce decline},
author = {J. Kmeť and Ľ. Ditmarová and T. Priwitzer and D. Kurjak and P. Baláž and M. Blaženec},
issn = {1803-2451},
year = {2010},
date = {2010-01-01},
journal = {Beskydy},
volume = {3},
number = {1},
pages = {55-64},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2009
|
 | Střelcová, K; Kučera, J; Fleischer, P; Giorgi, S; Gömöryová, E; Škvarenina, J; Ditmarová, Ľ Canopy transpiration of mountain mixed forest as a function of environmetal conditions in boundary layer Journal Article Biologia, 64 (3), pp. 507-511, 2009, ISSN: 1335-6372. BibTeX @article{Střelcová2009,
title = {Canopy transpiration of mountain mixed forest as a function of environmetal conditions in boundary layer},
author = {K. Střelcová and J. Kučera and P. Fleischer and S. Giorgi and E. Gömöryová and J. Škvarenina and Ľ. Ditmarová},
issn = {1335-6372},
year = {2009},
date = {2009-01-01},
journal = {Biologia},
volume = {64},
number = {3},
pages = {507-511},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Kmeť, J; Ditmarová, Ľ; Priwitzer, T; Kurjak, D Physiological aspects of yellowing of spruce advanced regeneration in area of the Kysucke Beskydy Mts. Journal Article Beskydy, 2 (1), pp. 29-38, 2009, ISSN: 1803-2451. BibTeX @article{Kmeť2009,
title = {Physiological aspects of yellowing of spruce advanced regeneration in area of the Kysucke Beskydy Mts.},
author = {J. Kmeť and Ľ. Ditmarová and T. Priwitzer and D. Kurjak},
issn = {1803-2451},
year = {2009},
date = {2009-01-01},
journal = {Beskydy},
volume = {2},
number = {1},
pages = {29-38},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2008
|
 | Kmeť, J; Ditmarová, Ľ; Kurjak, D Drought as stress factor and its role in spruce (Picea abies /L./ Karst) dieback Journal Article Beskydy, 1 (3), pp. 39-46, 2008, ISSN: 1803-2451. BibTeX @article{Kmeť2008,
title = {Drought as stress factor and its role in spruce (Picea abies /L./ Karst) dieback},
author = {J. Kmeť and Ľ. Ditmarová and D. Kurjak},
issn = {1803-2451},
year = {2008},
date = {2008-01-01},
journal = {Beskydy},
volume = {1},
number = {3},
pages = {39-46},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2007
|
 | Ditmarová, Ľ; Kmeť, J; Ježík, M; Váľka, J Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia) Journal Article Journal of Forest Science, 53 (3), pp. 93-100, 2007. BibTeX @article{Ditmarová2007,
title = {Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia)},
author = {Ľ. Ditmarová and J. Kmeť and M. Ježík and J. Váľka},
year = {2007},
date = {2007-01-01},
journal = {Journal of Forest Science},
volume = {53},
number = {3},
pages = {93-100},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2006
|
 | Ditmarová, Ľ; Kmeť, J; Střelcová, K; Gömöry, D Effects of drought on selected physiological parameters of young beech trees under stress conditions Journal Article Ekológia, 25 (1), pp. 1-12, 2006, ISSN: 1335-342X. BibTeX @article{Ditmarová2006,
title = {Effects of drought on selected physiological parameters of young beech trees under stress conditions},
author = {Ľ. Ditmarová and J. Kmeť and K. Střelcová and D. Gömöry},
issn = {1335-342X},
year = {2006},
date = {2006-01-01},
journal = {Ekológia},
volume = {25},
number = {1},
pages = {1-12},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2004
|
 | Ditmarová, Ľ; Kmeť, J; Střelcová, K; Gömöry, D Effects of temperature on selected physiological parameters of young beech trees under stress conditions Journal Article Ekologia, 23 (2), pp. 152-161, 2004, ISSN: 1335-342X. BibTeX @article{Ditmarová2004,
title = {Effects of temperature on selected physiological parameters of young beech trees under stress conditions},
author = {Ľ. Ditmarová and J. Kmeť and K. Střelcová and D. Gömöry},
issn = {1335-342X},
year = {2004},
date = {2004-01-01},
journal = {Ekologia},
volume = {23},
number = {2},
pages = {152-161},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2003
|
 | Kmeť, J; Ditmarová, Ľ Ecophysiological aspects of beech growth (Fagus sylvatica L.) in different stress conditions Journal Article Silva Balcanica, 3 (1), pp. 91-102, 2003, ISSN: 1311-8706. BibTeX @article{Kmeť2003,
title = {Ecophysiological aspects of beech growth (Fagus sylvatica L.) in different stress conditions},
author = {J. Kmeť and Ľ. Ditmarová},
issn = {1311-8706},
year = {2003},
date = {2003-01-01},
journal = {Silva Balcanica},
volume = {3},
number = {1},
pages = {91-102},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2002
|
 | Ditmarová, Ľ; Kmeť, J Physiological and biochemical aspects of stress impact on beech saplings growing under varying site conditions Journal Article Biologia, 57 (4), pp. 533-540, 2002, ISSN: 1335-6372. BibTeX @article{Ditmarová2002,
title = {Physiological and biochemical aspects of stress impact on beech saplings growing under varying site conditions},
author = {Ľ. Ditmarová and J. Kmeť},
issn = {1335-6372},
year = {2002},
date = {2002-01-01},
journal = {Biologia},
volume = {57},
number = {4},
pages = {533-540},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Ditmarová, Ľ; Kmeť, J Health state of beech (Fagus sylvatica L.) trees in terms of latent damage caused by immission load Journal Article Ekologia, 21 (2), pp. 42-52, 2002, ISSN: 1335-342X. BibTeX @article{Ditmarová2002b,
title = {Health state of beech (Fagus sylvatica L.) trees in terms of latent damage caused by immission load},
author = {Ľ. Ditmarová and J. Kmeť},
issn = {1335-342X},
year = {2002},
date = {2002-01-01},
journal = {Ekologia},
volume = {21},
number = {2},
pages = {42-52},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2001
|
 | Kmeť, J; Ditmarová, Ľ Bioindication of beech (Fagus sylvatica L.) photosynthetic apparatus function conditions under stress circumstances Journal Article Ekologia, 20 (2), pp. 200-209, 2001, ISSN: 1335-342X. BibTeX @article{Kmeť2001,
title = {Bioindication of beech (Fagus sylvatica L.) photosynthetic apparatus function conditions under stress circumstances},
author = {J. Kmeť and Ľ. Ditmarová},
issn = {1335-342X},
year = {2001},
date = {2001-01-01},
journal = {Ekologia},
volume = {20},
number = {2},
pages = {200-209},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
 | Kmeť, J; Ditmarová, Ľ Physiological aspects of European beech (Fagus sylvatica L.) health condition in Slovakia Journal Article Journal of Forest Science, 47 (9), pp. 377-386, 2001, ISSN: 1212-4834 2001. BibTeX @article{Kmeť2001b,
title = {Physiological aspects of European beech (Fagus sylvatica L.) health condition in Slovakia},
author = {J. Kmeť and Ľ. Ditmarová},
issn = {1212-4834 2001},
year = {2001},
date = {2001-01-01},
journal = {Journal of Forest Science},
volume = {47},
number = {9},
pages = {377-386},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
