TY  - CONF
AU  - Savić, Aleksandra
AU  - Oveisi, Mostafa
AU  - Müller Schärer, H.
AU  - Vrbničanin, Sava
PY  - 2024
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/1289
AB  - Ambrosia artemisiifolia (AMBEL) and Ambrosia trifida (AMBTR) are recognized as troublesome invasive plant species in several regions of the world, including Europe. Under their impact, crop production is reduced in the invaded areas, and a large amount of pollen produced is harmful to human health. The height and density of these species can produce strong shading effects and inhibit the growth of other species, which is a precondition significantly changing the biodiversity and structure of the invaded ecosystems. Unlike AMBEL, which is widespread in many parts of Serbia, AMBTR is currently naturalized only in the area of central Bačka. Their harmful impact has also been noted in this area. Given all the above, the aim of this research was focused on examining the interaction of two ragweed species and their impact on other species in the plant community. During 2016 and 2017, field experiments were carried out at a farm near Dobrić, Republic of Serbia (44°41′N, 19°34′E). Unlike AMBEL, which forms dense populations in this area and greatly impacts crop production, AMBTR has not yet been recorded in this part of Serbia. Seeds of AMBTR were collected in autumn 2015 from infested crop fields in Central Bačka (45°30′N, 19°31′E). The experiment was set up as a replacement series design (four replicates) in different AMBEL/AMBTR ratios per m2: 10/0; 8/2; 6/4; 4/6; 2/8; 0/10. In addition to maintaining the total number of ragweed/m2, other weed species were not removed. They were more or less homogeneously distributed, with the most abundant species being Setaria viridis, Echinochloa crus-galli, Sorghum halepense, Polygonum aviculare, Cirsium arvense, Chenopodium album, Plantago major, and Erigeron annuus. The dry mass of plants was measured to assess interactions, and data analysis was performed in R-studio. During both seasons, ANOVA showed the same trend. With the increase in the number of AMBTR/m2 and the decrease in the number of AMBEL/m2, the dry mass of AMBTR decreased. Opposite, with the increase in the number of AMBEL and the decrease in AMBTR, the dry mass of AMBEL was increasing. According to the results, it can be concluded that interspecific competition is larger for AMBEL, in contrast, intraspecific is greater for AMBTR. During both seasons, in the treatments with the increase in the number of AMBTR and the decrease in the number of AMBEL/m2, the dry mass of other weeds decreased. Additionally, we conclude that AMBTR had a greater impact on other weeds in the plant community.
C3  - Internacional Ragweed Society Conference, 8-9 September 2024, Budapest, Hungary
T1  - S1 – O6 COMPETITIVE HIERARCHY OF TWO RAGWEED SPECIES AND ITS EFFECT ON OTHER WEEDS IN THE PLANT COMMUNITY
SP  - 30
DO  - 10.19040/ecocycles.v8i3.242
ER  - 

@conference{
author = "Savić, Aleksandra and Oveisi, Mostafa and Müller Schärer, H. and Vrbničanin, Sava",
year = "2024",
abstract = "Ambrosia artemisiifolia (AMBEL) and Ambrosia trifida (AMBTR) are recognized as troublesome invasive plant species in several regions of the world, including Europe. Under their impact, crop production is reduced in the invaded areas, and a large amount of pollen produced is harmful to human health. The height and density of these species can produce strong shading effects and inhibit the growth of other species, which is a precondition significantly changing the biodiversity and structure of the invaded ecosystems. Unlike AMBEL, which is widespread in many parts of Serbia, AMBTR is currently naturalized only in the area of central Bačka. Their harmful impact has also been noted in this area. Given all the above, the aim of this research was focused on examining the interaction of two ragweed species and their impact on other species in the plant community. During 2016 and 2017, field experiments were carried out at a farm near Dobrić, Republic of Serbia (44°41′N, 19°34′E). Unlike AMBEL, which forms dense populations in this area and greatly impacts crop production, AMBTR has not yet been recorded in this part of Serbia. Seeds of AMBTR were collected in autumn 2015 from infested crop fields in Central Bačka (45°30′N, 19°31′E). The experiment was set up as a replacement series design (four replicates) in different AMBEL/AMBTR ratios per m2: 10/0; 8/2; 6/4; 4/6; 2/8; 0/10. In addition to maintaining the total number of ragweed/m2, other weed species were not removed. They were more or less homogeneously distributed, with the most abundant species being Setaria viridis, Echinochloa crus-galli, Sorghum halepense, Polygonum aviculare, Cirsium arvense, Chenopodium album, Plantago major, and Erigeron annuus. The dry mass of plants was measured to assess interactions, and data analysis was performed in R-studio. During both seasons, ANOVA showed the same trend. With the increase in the number of AMBTR/m2 and the decrease in the number of AMBEL/m2, the dry mass of AMBTR decreased. Opposite, with the increase in the number of AMBEL and the decrease in AMBTR, the dry mass of AMBEL was increasing. According to the results, it can be concluded that interspecific competition is larger for AMBEL, in contrast, intraspecific is greater for AMBTR. During both seasons, in the treatments with the increase in the number of AMBTR and the decrease in the number of AMBEL/m2, the dry mass of other weeds decreased. Additionally, we conclude that AMBTR had a greater impact on other weeds in the plant community.",
journal = "Internacional Ragweed Society Conference, 8-9 September 2024, Budapest, Hungary",
title = "S1 – O6 COMPETITIVE HIERARCHY OF TWO RAGWEED SPECIES AND ITS EFFECT ON OTHER WEEDS IN THE PLANT COMMUNITY",
pages = "30",
doi = "10.19040/ecocycles.v8i3.242"
}

Savić, A., Oveisi, M., Müller Schärer, H.,& Vrbničanin, S.. (2024). S1 – O6 COMPETITIVE HIERARCHY OF TWO RAGWEED SPECIES AND ITS EFFECT ON OTHER WEEDS IN THE PLANT COMMUNITY. in Internacional Ragweed Society Conference, 8-9 September 2024, Budapest, Hungary, 30.
https://doi.org/10.19040/ecocycles.v8i3.242

Savić A, Oveisi M, Müller Schärer H, Vrbničanin S. S1 – O6 COMPETITIVE HIERARCHY OF TWO RAGWEED SPECIES AND ITS EFFECT ON OTHER WEEDS IN THE PLANT COMMUNITY. in Internacional Ragweed Society Conference, 8-9 September 2024, Budapest, Hungary. 2024;:30.
doi:10.19040/ecocycles.v8i3.242 .

Savić, Aleksandra, Oveisi, Mostafa, Müller Schärer, H., Vrbničanin, Sava, "S1 – O6 COMPETITIVE HIERARCHY OF TWO RAGWEED SPECIES AND ITS EFFECT ON OTHER WEEDS IN THE PLANT COMMUNITY" in Internacional Ragweed Society Conference, 8-9 September 2024, Budapest, Hungary (2024):30,
https://doi.org/10.19040/ecocycles.v8i3.242 . .

TY  - CONF
AU  - Savić, Aleksandra
PY  - 2022
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/1288
AB  - Reproductive traits of alien plant species represent as important traits involved in their invasive success. Fecundity presents a biological mechanism that ensures survival in fickle and
unfavourable environmental conditions and enables efficient expansion in new areas. In many
European countries, Ambrosia artemisiifolia L. (AMBEL). is characterized as an invasive weed
species with a large seed production, which retains germination for many years. Unlike AMBEL, Ambrosia trifida L. (AMBTR) is less widespread and investigated, but its biological and
ecological properties attract the attention of many scientists. Both species are strong competitors for natural resources and space and very often in the ecosystem influence on the
repression of other plant species, and changing structures of plant communities. Although
the spread of AMBTR observed in recent years, it has not yet become the dominant species
in comparison to AMBEL. The aim of the research was to examine the generative production
of AMBEL and AMBTR in co-association and does it this competition could restrict the spread
rate. Field experiments were carried out at a farm near Dobrić, Republic of Serbia (44°41´N,
19°34´E) using a replacement design model, where the competitive interaction between AMBEL and AMBTR was assessed. The experiment involves treatments were the proportion of
AMBEL to AMBTR of 10:0; 8:2; 4:6; 6:4; 2:8 and 0:10), and 10 plants per m2 arranged in a
randomized block design (four replication). During the two different climatic conditions year,
seed production of AMBTR and AMBEL were measured in 2016 and 2017. Data analysis were
performed in R-studio. During two seasons, AMBEL produced more seeds than AMBTR, with
no significant statistical differences between treatments. Although AMBTR achieved higher
seed production in a more favourable climate year (2017), in both seasons, the highest numbers of seeds were achieved in treatments with its highest number/m2
 in relation to AMBEL.
Interspecific competition reduced seed production of AMBTR, while intraspecific competition
did the opposite. Analysis of variance showed statistically significant differences between treatments. Unlike AMBTR, the obtained results could indicate the more successful invasiveness
of AMBEL, since in unfavourable environmental conditions (reduced living space and stressful
climatic conditions) it produces richer offspring, which is a precondition for its further spread
and colonization to new habitats.
C3  - 19th European Weed Research Society Symposium, 20-23 June 2022, Athens, Greece
T1  - Impact of the competitive hierarchy of Ambrosia artemisiifolia and Ambrosia trifida on their generative production
SP  - 47
ER  - 

@conference{
author = "Savić, Aleksandra",
year = "2022",
abstract = "Reproductive traits of alien plant species represent as important traits involved in their invasive success. Fecundity presents a biological mechanism that ensures survival in fickle and
unfavourable environmental conditions and enables efficient expansion in new areas. In many
European countries, Ambrosia artemisiifolia L. (AMBEL). is characterized as an invasive weed
species with a large seed production, which retains germination for many years. Unlike AMBEL, Ambrosia trifida L. (AMBTR) is less widespread and investigated, but its biological and
ecological properties attract the attention of many scientists. Both species are strong competitors for natural resources and space and very often in the ecosystem influence on the
repression of other plant species, and changing structures of plant communities. Although
the spread of AMBTR observed in recent years, it has not yet become the dominant species
in comparison to AMBEL. The aim of the research was to examine the generative production
of AMBEL and AMBTR in co-association and does it this competition could restrict the spread
rate. Field experiments were carried out at a farm near Dobrić, Republic of Serbia (44°41´N,
19°34´E) using a replacement design model, where the competitive interaction between AMBEL and AMBTR was assessed. The experiment involves treatments were the proportion of
AMBEL to AMBTR of 10:0; 8:2; 4:6; 6:4; 2:8 and 0:10), and 10 plants per m2 arranged in a
randomized block design (four replication). During the two different climatic conditions year,
seed production of AMBTR and AMBEL were measured in 2016 and 2017. Data analysis were
performed in R-studio. During two seasons, AMBEL produced more seeds than AMBTR, with
no significant statistical differences between treatments. Although AMBTR achieved higher
seed production in a more favourable climate year (2017), in both seasons, the highest numbers of seeds were achieved in treatments with its highest number/m2
 in relation to AMBEL.
Interspecific competition reduced seed production of AMBTR, while intraspecific competition
did the opposite. Analysis of variance showed statistically significant differences between treatments. Unlike AMBTR, the obtained results could indicate the more successful invasiveness
of AMBEL, since in unfavourable environmental conditions (reduced living space and stressful
climatic conditions) it produces richer offspring, which is a precondition for its further spread
and colonization to new habitats.",
journal = "19th European Weed Research Society Symposium, 20-23 June 2022, Athens, Greece",
title = "Impact of the competitive hierarchy of Ambrosia artemisiifolia and Ambrosia trifida on their generative production",
pages = "47"
}

Savić, A.. (2022). Impact of the competitive hierarchy of Ambrosia artemisiifolia and Ambrosia trifida on their generative production. in 19th European Weed Research Society Symposium, 20-23 June 2022, Athens, Greece, 47.

Savić A. Impact of the competitive hierarchy of Ambrosia artemisiifolia and Ambrosia trifida on their generative production. in 19th European Weed Research Society Symposium, 20-23 June 2022, Athens, Greece. 2022;:47..

Savić, Aleksandra, "Impact of the competitive hierarchy of Ambrosia artemisiifolia and Ambrosia trifida on their generative production" in 19th European Weed Research Society Symposium, 20-23 June 2022, Athens, Greece (2022):47.

TY  - JOUR
AU  - Lazarević, Jovan
AU  - Dragumilo, Ana
AU  - Marković, Tatjana
AU  - Savić, Aleksandra
AU  - Božić, Dragana
PY  - 2020
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/629
AB  - Plantažno gajenje lekovitog bilja je u ekspanziji, a s obzirom na to da suzbijanje korova predstavlja najveći izazov u ovoj proizvodnji, cilj rada je bio ispitivanje mogućnosti njihovog suzbijanja malčiranjem. Osim toga, u istraživanje je bio uključen i herbicid metamitron čija je primena u ovakvim usevima prihvatljiva u nekim zemljama. Kao eksperimentalni usev izabran je usev angelike (A. archangelica L.) čije etarsko ulje iz korena je jedno od najcenjenijih na tržištu, pa se može očekivati povećanje proizvodnih površina. Ogled je postavljen kao potpuno slučajan blok sistem u četiri ponavljanja i to u pet tretmana: agrotekstilna vodopropusna folija, piljevina, herbicid metamitron, kontrola bez korova (pozitivna) i kontrola sa korovima (negativna). Najveća zakorovljenost zabeležena je u negativnoj kontroli i u tretmanu sa primenom herbicida metamitron. Malč od piljevine rezultirao je smanjenjem zakorovljenosti u odnosu na prethodna dva tretmana. Agrotekstilna folija i redovno plevljena kontrola su bile bez prisustva korova. Dakle, najbolja efikasnost u suzbijanju korova postignuta je primenom agrotekstilne malč folije, koja je u potpunosti sprečila nicanje korova (efikasnost 100%). Znatno slabiji efekat je ostvaren primenom piljevine (efikasnost 51,28%), dok je metamitron svežu biomasu korova redukovao za samo 26,71%. Dobijeni rezultati pokazuju da je malčiranje kao fizička metoda suzbijanja korova u usevu angelike podesnije u poređenju sa primenom herbicida metamitron ukoliko u usevu dominiraju travne vrste, koje nisu u spektru delovanja ovog herbicida. Značaj ovih rezultata je utoliko veći što u našoj zemlji metamitron, kao ni drugi herbicidi, nije registrovan za primenu u lekovitom bilju.
PB  - Herbološko društvo Srbije
T2  - Acta herbologica
T1  - Suzbijanje korova u usevu angelike (Angelica archangelica L.)
EP  - 139
IS  - 2
SP  - 129
VL  - 29
DO  - 10.5937/actaherb2002129l
ER  - 

@article{
author = "Lazarević, Jovan and Dragumilo, Ana and Marković, Tatjana and Savić, Aleksandra and Božić, Dragana",
year = "2020",
abstract = "Plantažno gajenje lekovitog bilja je u ekspanziji, a s obzirom na to da suzbijanje korova predstavlja najveći izazov u ovoj proizvodnji, cilj rada je bio ispitivanje mogućnosti njihovog suzbijanja malčiranjem. Osim toga, u istraživanje je bio uključen i herbicid metamitron čija je primena u ovakvim usevima prihvatljiva u nekim zemljama. Kao eksperimentalni usev izabran je usev angelike (A. archangelica L.) čije etarsko ulje iz korena je jedno od najcenjenijih na tržištu, pa se može očekivati povećanje proizvodnih površina. Ogled je postavljen kao potpuno slučajan blok sistem u četiri ponavljanja i to u pet tretmana: agrotekstilna vodopropusna folija, piljevina, herbicid metamitron, kontrola bez korova (pozitivna) i kontrola sa korovima (negativna). Najveća zakorovljenost zabeležena je u negativnoj kontroli i u tretmanu sa primenom herbicida metamitron. Malč od piljevine rezultirao je smanjenjem zakorovljenosti u odnosu na prethodna dva tretmana. Agrotekstilna folija i redovno plevljena kontrola su bile bez prisustva korova. Dakle, najbolja efikasnost u suzbijanju korova postignuta je primenom agrotekstilne malč folije, koja je u potpunosti sprečila nicanje korova (efikasnost 100%). Znatno slabiji efekat je ostvaren primenom piljevine (efikasnost 51,28%), dok je metamitron svežu biomasu korova redukovao za samo 26,71%. Dobijeni rezultati pokazuju da je malčiranje kao fizička metoda suzbijanja korova u usevu angelike podesnije u poređenju sa primenom herbicida metamitron ukoliko u usevu dominiraju travne vrste, koje nisu u spektru delovanja ovog herbicida. Značaj ovih rezultata je utoliko veći što u našoj zemlji metamitron, kao ni drugi herbicidi, nije registrovan za primenu u lekovitom bilju.",
publisher = "Herbološko društvo Srbije",
journal = "Acta herbologica",
title = "Suzbijanje korova u usevu angelike (Angelica archangelica L.)",
pages = "139-129",
number = "2",
volume = "29",
doi = "10.5937/actaherb2002129l"
}

Lazarević, J., Dragumilo, A., Marković, T., Savić, A.,& Božić, D.. (2020). Suzbijanje korova u usevu angelike (Angelica archangelica L.). in Acta herbologica
Herbološko društvo Srbije., 29(2), 129-139.
https://doi.org/10.5937/actaherb2002129l

Lazarević J, Dragumilo A, Marković T, Savić A, Božić D. Suzbijanje korova u usevu angelike (Angelica archangelica L.). in Acta herbologica. 2020;29(2):129-139.
doi:10.5937/actaherb2002129l .

Lazarević, Jovan, Dragumilo, Ana, Marković, Tatjana, Savić, Aleksandra, Božić, Dragana, "Suzbijanje korova u usevu angelike (Angelica archangelica L.)" in Acta herbologica, 29, no. 2 (2020):129-139,
https://doi.org/10.5937/actaherb2002129l . .