TY  - JOUR
AU  - Popović, Zorica
AU  - Vidaković, Vera
AU  - Janković, Jovana
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5833
AB  - Introduction: A variety of plant traits, from architectural to the cellular level, have been connected to flammability, but intraspecific variability of plant traits (ITV) and components of flammability is poorly studied. The lack of knowledge about ITV of plant traits related to flammability appears to be a major shortcoming in further interpreting species flammability and fire behavior and incorporating the data into models.

Methods: Morpho-ecophysiological traits (width, length, thickness, weight, area, volume, moisture content, flatness, specific leaf area, density of leaf tissue, ratio of area to volume) and time-to-ignition of fresh foliage were measured in seven populations of Picea omorika.

Results: All leaf traits are presented along with their correlations to the flammability trait. The seven populations differed in terms of fresh leaves’ time-to-ignition. Differences among populations in morpho-ecophysiological traits were also significant but not consistent among populations. PCA classified 49 elements into three different groups, where three populations were clustered by higher leaf area-related traits, other three populations were clustered by higher leaf length, volume, thickness, time-to-ignition, density index, moisture content, width, weight, and one population was classified between the two main groups. The first two principal components accounted for 87% of the total variance: variability in leaf area- and leaf weight-derived parameters (specific leaf area and density index) and time-to-ignition primarily defined the formation of the first axis, while variability in leaf flatness (based on leaf weight and thickness) primarily contributed to the formation of the second axis.

Discussion: Results suggest high ITV in natural populations of P. omorika regardless of site fire history.
PB  - Frontiers Media S.A.
T2  - Frontiers in Forests and Global Change
T1  - Variability of leaf traits in natural populations of Picea omorika determines ignitability of fresh foliage
VL  - 6
DO  - 10.3389/ffgc.2023.1196809
SP  - 1196809
ER  - 

@article{
author = "Popović, Zorica and Vidaković, Vera and Janković, Jovana",
year = "2023",
abstract = "Introduction: A variety of plant traits, from architectural to the cellular level, have been connected to flammability, but intraspecific variability of plant traits (ITV) and components of flammability is poorly studied. The lack of knowledge about ITV of plant traits related to flammability appears to be a major shortcoming in further interpreting species flammability and fire behavior and incorporating the data into models.

Methods: Morpho-ecophysiological traits (width, length, thickness, weight, area, volume, moisture content, flatness, specific leaf area, density of leaf tissue, ratio of area to volume) and time-to-ignition of fresh foliage were measured in seven populations of Picea omorika.

Results: All leaf traits are presented along with their correlations to the flammability trait. The seven populations differed in terms of fresh leaves’ time-to-ignition. Differences among populations in morpho-ecophysiological traits were also significant but not consistent among populations. PCA classified 49 elements into three different groups, where three populations were clustered by higher leaf area-related traits, other three populations were clustered by higher leaf length, volume, thickness, time-to-ignition, density index, moisture content, width, weight, and one population was classified between the two main groups. The first two principal components accounted for 87% of the total variance: variability in leaf area- and leaf weight-derived parameters (specific leaf area and density index) and time-to-ignition primarily defined the formation of the first axis, while variability in leaf flatness (based on leaf weight and thickness) primarily contributed to the formation of the second axis.

Discussion: Results suggest high ITV in natural populations of P. omorika regardless of site fire history.",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in Forests and Global Change",
title = "Variability of leaf traits in natural populations of Picea omorika determines ignitability of fresh foliage",
volume = "6",
doi = "10.3389/ffgc.2023.1196809",
pages = "1196809"
}

Popović, Z., Vidaković, V.,& Janković, J.. (2023). Variability of leaf traits in natural populations of Picea omorika determines ignitability of fresh foliage. in Frontiers in Forests and Global Change
Frontiers Media S.A.., 6, 1196809.
https://doi.org/10.3389/ffgc.2023.1196809

Popović Z, Vidaković V, Janković J. Variability of leaf traits in natural populations of Picea omorika determines ignitability of fresh foliage. in Frontiers in Forests and Global Change. 2023;6:1196809.
doi:10.3389/ffgc.2023.1196809 .

Popović, Zorica, Vidaković, Vera, Janković, Jovana, "Variability of leaf traits in natural populations of Picea omorika determines ignitability of fresh foliage" in Frontiers in Forests and Global Change, 6 (2023):1196809,
https://doi.org/10.3389/ffgc.2023.1196809 . .

TY  - JOUR
AU  - Janković, Jovana
AU  - Vidaković, Vera
AU  - Bojović, Srđan
AU  - Popović, Zorica
PY  - 2021
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4676
AB  - U radu su ispitivani ekofiziološki i ekomorfološki parametri jedinki Rubus hirtus Waldst. & Kit. iz tri prirodne populacije sa Stare planine. Sadržaj ukupnog hlorofila u listovima, procenjen metodom SPAD, kao i širina listova i odnos širina/dužina listova imali su najveće vrednosti u populaciji A koja naseljava šumsku zajednicu u kojoj dominiraju grab i kitnjak i raste u uslovima vegetacijske senke. Manje vrednosti ispitivanih parametara bile su zabeležene u populacijama B (koja je takođe locirana unutar šumskog sklopa) i C (koja se nalazi na relativno otvorenom staništu). Među-populacione razlike u ispitivanim parametrima se mogu delimično tumačiti kao prilagođenost na svetlosne uslove staništa (značajne razlike između jedinki iz populacija A i C), dok se vrednosti parametara u populaciji B ne mogu objasniti delovanjem svetlosnih uslova, već ukazuju na neophodnost razmatranja kompleksnih sredinskih faktora na tom lokalitetu, pre svega kontaminiranosti zemljišta i podzemnih voda teškim metalima.
AB  - Natural populations of Rubus hirtus Waldst. & Kit. were studied at three locations along the Gabrovnica river on Stara Planina mountain, to assess the inter-population differences in ecophysiological and ecomorphological parameters. The content of total chlorophyll in leaves, estimated by the SPAD method, as well as leaf width and leaf width/length ratio had the highest values in population A, which inhabits a forest community dominated by hornbeam and sessile oak and grows in vegetative shade. Populations B (which is also located within the forest complex) and C (which is located in a relatively open habitat) had lower values for the examined parameters. Inter-population differences in the examined parameters can be partially interpreted as an adaptation to habitat light conditions (significant differences between individuals from populations A and C). However, the values of parameters in population B cannot be explained by light conditions, indicating the need to consider complex environmental conditions at that site, primarily heavy metal contamination of soil and groundwater.
PB  - Beograd: Herbološko društvo Srbije
T2  - Acta Herbologica
T1  - Ispitivanje SPAD vrednosti i morfometrijskih odlika listova u populacijama divlje kupine na Staroj planini
T1  - Investigation of SPAD values and morphometric characteristics of leaves in wild blackberry populations on Stara Planina Mt.
IS  - 1
VL  - 30
DO  - 10.5937/actaherb2101019J
SP  - 19
EP  - 28
ER  - 

@article{
author = "Janković, Jovana and Vidaković, Vera and Bojović, Srđan and Popović, Zorica",
year = "2021",
abstract = "U radu su ispitivani ekofiziološki i ekomorfološki parametri jedinki Rubus hirtus Waldst. & Kit. iz tri prirodne populacije sa Stare planine. Sadržaj ukupnog hlorofila u listovima, procenjen metodom SPAD, kao i širina listova i odnos širina/dužina listova imali su najveće vrednosti u populaciji A koja naseljava šumsku zajednicu u kojoj dominiraju grab i kitnjak i raste u uslovima vegetacijske senke. Manje vrednosti ispitivanih parametara bile su zabeležene u populacijama B (koja je takođe locirana unutar šumskog sklopa) i C (koja se nalazi na relativno otvorenom staništu). Među-populacione razlike u ispitivanim parametrima se mogu delimično tumačiti kao prilagođenost na svetlosne uslove staništa (značajne razlike između jedinki iz populacija A i C), dok se vrednosti parametara u populaciji B ne mogu objasniti delovanjem svetlosnih uslova, već ukazuju na neophodnost razmatranja kompleksnih sredinskih faktora na tom lokalitetu, pre svega kontaminiranosti zemljišta i podzemnih voda teškim metalima., Natural populations of Rubus hirtus Waldst. & Kit. were studied at three locations along the Gabrovnica river on Stara Planina mountain, to assess the inter-population differences in ecophysiological and ecomorphological parameters. The content of total chlorophyll in leaves, estimated by the SPAD method, as well as leaf width and leaf width/length ratio had the highest values in population A, which inhabits a forest community dominated by hornbeam and sessile oak and grows in vegetative shade. Populations B (which is also located within the forest complex) and C (which is located in a relatively open habitat) had lower values for the examined parameters. Inter-population differences in the examined parameters can be partially interpreted as an adaptation to habitat light conditions (significant differences between individuals from populations A and C). However, the values of parameters in population B cannot be explained by light conditions, indicating the need to consider complex environmental conditions at that site, primarily heavy metal contamination of soil and groundwater.",
publisher = "Beograd: Herbološko društvo Srbije",
journal = "Acta Herbologica",
title = "Ispitivanje SPAD vrednosti i morfometrijskih odlika listova u populacijama divlje kupine na Staroj planini, Investigation of SPAD values and morphometric characteristics of leaves in wild blackberry populations on Stara Planina Mt.",
number = "1",
volume = "30",
doi = "10.5937/actaherb2101019J",
pages = "19-28"
}

Janković, J., Vidaković, V., Bojović, S.,& Popović, Z.. (2021). Ispitivanje SPAD vrednosti i morfometrijskih odlika listova u populacijama divlje kupine na Staroj planini. in Acta Herbologica
Beograd: Herbološko društvo Srbije., 30(1), 19-28.
https://doi.org/10.5937/actaherb2101019J

Janković J, Vidaković V, Bojović S, Popović Z. Ispitivanje SPAD vrednosti i morfometrijskih odlika listova u populacijama divlje kupine na Staroj planini. in Acta Herbologica. 2021;30(1):19-28.
doi:10.5937/actaherb2101019J .

Janković, Jovana, Vidaković, Vera, Bojović, Srđan, Popović, Zorica, "Ispitivanje SPAD vrednosti i morfometrijskih odlika listova u populacijama divlje kupine na Staroj planini" in Acta Herbologica, 30, no. 1 (2021):19-28,
https://doi.org/10.5937/actaherb2101019J . .

TY  - JOUR
AU  - Popović, Zorica
AU  - Krstić Milošević, Dijana
AU  - Marković, Milena
AU  - Vidaković, Vera
AU  - Matić, Rada
AU  - Janković, Jovana
AU  - Bojović, Srđan
PY  - 2020
UR  - https://www.tandfonline.com/doi/abs/10.1080/11263504.2020.1785966?journalCode=tplb20
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3815
AB  - Variability in the contents of representative secondary metabolites in Gentiana pneumonanthe individuals was investigated in relation to population origin, plant parts and developmental stage. Chemical analyses (HPLC) of six secondary metabolites (swertiamarin (SWM), gentiopicrin (GP), sweroside (SWZ), mangiferin (MGF), isoorientin (ISOOR), and isovitexin (ISOV)) were performed for individuals from six populations located within a 3 × 3 km area at Maljen Mt., and separately for below- and above ground plant parts in three developmental stages. Different plant parts showed pronounced differences in the contents of the six secondary metabolites and a high level of variability during the plant ontogeny. The highest contents of three dominant compounds (SWM, GP, and MGF) were detected in different developmental stages. Both below- and above ground plant parts contained GP, MGF, SWZ, and SWM at some developmental stages, whereas ISOOR and ISOV were registered in above ground parts. The full-flowering stage was characterized by the highest contents of MGF, GP, and ISOOR in aboveground-, and GP in belowground parts. In the post-flowering stage, a high content of MF was detected in below ground parts. The results of this study contribute to a better understanding of interpopulation, ontogenetic and between-organ variability in rare and threatened G. pneumonanthe.
PB  - London: Taylor & Francis
T2  - Plant Biosystems
T1  - Variability of six secondary metabolites in plant parts and developmental stages in natural populations of rare Gentiana pneumonanthe
DO  - 10.1080/11263504.2020.1785966
ER  - 

@article{
author = "Popović, Zorica and Krstić Milošević, Dijana and Marković, Milena and Vidaković, Vera and Matić, Rada and Janković, Jovana and Bojović, Srđan",
year = "2020",
abstract = "Variability in the contents of representative secondary metabolites in Gentiana pneumonanthe individuals was investigated in relation to population origin, plant parts and developmental stage. Chemical analyses (HPLC) of six secondary metabolites (swertiamarin (SWM), gentiopicrin (GP), sweroside (SWZ), mangiferin (MGF), isoorientin (ISOOR), and isovitexin (ISOV)) were performed for individuals from six populations located within a 3 × 3 km area at Maljen Mt., and separately for below- and above ground plant parts in three developmental stages. Different plant parts showed pronounced differences in the contents of the six secondary metabolites and a high level of variability during the plant ontogeny. The highest contents of three dominant compounds (SWM, GP, and MGF) were detected in different developmental stages. Both below- and above ground plant parts contained GP, MGF, SWZ, and SWM at some developmental stages, whereas ISOOR and ISOV were registered in above ground parts. The full-flowering stage was characterized by the highest contents of MGF, GP, and ISOOR in aboveground-, and GP in belowground parts. In the post-flowering stage, a high content of MF was detected in below ground parts. The results of this study contribute to a better understanding of interpopulation, ontogenetic and between-organ variability in rare and threatened G. pneumonanthe.",
publisher = "London: Taylor & Francis",
journal = "Plant Biosystems",
title = "Variability of six secondary metabolites in plant parts and developmental stages in natural populations of rare Gentiana pneumonanthe",
doi = "10.1080/11263504.2020.1785966"
}

Popović, Z., Krstić Milošević, D., Marković, M., Vidaković, V., Matić, R., Janković, J.,& Bojović, S.. (2020). Variability of six secondary metabolites in plant parts and developmental stages in natural populations of rare Gentiana pneumonanthe. in Plant Biosystems
London: Taylor & Francis..
https://doi.org/10.1080/11263504.2020.1785966

Popović Z, Krstić Milošević D, Marković M, Vidaković V, Matić R, Janković J, Bojović S. Variability of six secondary metabolites in plant parts and developmental stages in natural populations of rare Gentiana pneumonanthe. in Plant Biosystems. 2020;.
doi:10.1080/11263504.2020.1785966 .

Popović, Zorica, Krstić Milošević, Dijana, Marković, Milena, Vidaković, Vera, Matić, Rada, Janković, Jovana, Bojović, Srđan, "Variability of six secondary metabolites in plant parts and developmental stages in natural populations of rare Gentiana pneumonanthe" in Plant Biosystems (2020),
https://doi.org/10.1080/11263504.2020.1785966 . .