TY  - JOUR
AU  - Vrbničanin, Sava
AU  - Božić, Dragana
AU  - Pavlović, Danijela M.
AU  - Sarić-Krsmanović, Marija
AU  - Stojicević, Darko
AU  - Uludag, Ahmet
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4350
AB  - Weedy sunflower has become a problem worldwide, giving significant yield losses in sunflower and soybean fields even at low densities, decreasing their oil quality and allowing gene flow among crops and weeds. Its evolution differs among countries due to availability of wild forms. The problem is not only weedeness but also herbicide resistance in the Republic of Serbia. Three weedy sunflower populations from Serbia were studied: RWS1 and RWS2, which were presumably ALS herbicide resistant and SWS which is susceptible. Plant height, fresh weight, leaf area, relative chlorophyll content, fecundity and percentage of germination, length and weight of seedlings with and without nicosulfuron application were recorded. The most frequently RWS1 and RWS2 populations were of better ecological fitness than the SWS population under the conditions with and without nicosulfuron application. The number of seed produced was higher in RWS1 without herbicide application and RWS2 with nicosulfuron application. It was concluded that the differences in the level of herbicide-resistance could result in different fitness level of weedy sunflower populations which could promote the invasiveness of these populations in landscape.
PB  - Ars Docendi, Bucharest
T2  - Romanian Biotechnological Letters
T1  - Fitness studies on invasive weedy sunflower populations from Serbia
EP  - 12472
IS  - 2
SP  - 12464
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_4350
ER  - 

@article{
author = "Vrbničanin, Sava and Božić, Dragana and Pavlović, Danijela M. and Sarić-Krsmanović, Marija and Stojicević, Darko and Uludag, Ahmet",
year = "2017",
abstract = "Weedy sunflower has become a problem worldwide, giving significant yield losses in sunflower and soybean fields even at low densities, decreasing their oil quality and allowing gene flow among crops and weeds. Its evolution differs among countries due to availability of wild forms. The problem is not only weedeness but also herbicide resistance in the Republic of Serbia. Three weedy sunflower populations from Serbia were studied: RWS1 and RWS2, which were presumably ALS herbicide resistant and SWS which is susceptible. Plant height, fresh weight, leaf area, relative chlorophyll content, fecundity and percentage of germination, length and weight of seedlings with and without nicosulfuron application were recorded. The most frequently RWS1 and RWS2 populations were of better ecological fitness than the SWS population under the conditions with and without nicosulfuron application. The number of seed produced was higher in RWS1 without herbicide application and RWS2 with nicosulfuron application. It was concluded that the differences in the level of herbicide-resistance could result in different fitness level of weedy sunflower populations which could promote the invasiveness of these populations in landscape.",
publisher = "Ars Docendi, Bucharest",
journal = "Romanian Biotechnological Letters",
title = "Fitness studies on invasive weedy sunflower populations from Serbia",
pages = "12472-12464",
number = "2",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_4350"
}

Vrbničanin, S., Božić, D., Pavlović, D. M., Sarić-Krsmanović, M., Stojicević, D.,& Uludag, A.. (2017). Fitness studies on invasive weedy sunflower populations from Serbia. in Romanian Biotechnological Letters
Ars Docendi, Bucharest., 22(2), 12464-12472.
https://hdl.handle.net/21.15107/rcub_agrospace_4350

Vrbničanin S, Božić D, Pavlović DM, Sarić-Krsmanović M, Stojicević D, Uludag A. Fitness studies on invasive weedy sunflower populations from Serbia. in Romanian Biotechnological Letters. 2017;22(2):12464-12472.
https://hdl.handle.net/21.15107/rcub_agrospace_4350 .

Vrbničanin, Sava, Božić, Dragana, Pavlović, Danijela M., Sarić-Krsmanović, Marija, Stojicević, Darko, Uludag, Ahmet, "Fitness studies on invasive weedy sunflower populations from Serbia" in Romanian Biotechnological Letters, 22, no. 2 (2017):12464-12472,
https://hdl.handle.net/21.15107/rcub_agrospace_4350 .

TY  - JOUR
AU  - Božić, Dragana
AU  - Vrbničanin, Sava
AU  - Stojicević, Darko
AU  - Pavlović, Danijela
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4212
AB  - Weedy sunflower Helianthus annuus L. (WS) can become troublesome for cultivated sunflower given their genetic similarity which allows gene flow from weed-to-crop and from crop-to-weed. Also, it causes yield losses in different spring-sown crops. Despite this, there is still no data about its response to herbicides.
Field experiments were conducted to quantify the effects of nicosulfuron on WS populations. Plants of three populations (R1-WS and R2-WS = presumably resistant and S-WS = susceptible) were treated with 40 g nicosulfuron ha-1 at the 2–4 true-leaf growth stage. Vegetative parameters (plant height, fresh weight, leaf area) and relative chlorophyll content (RCC) were measured 30 days after herbicide application. Generative parameters (number of heads plant-1, head diameter, number of seeds plant-1) were measured at maturity. After harvesting, seed germination of collected seeds was studied in Petri dishes at 25°C.
Nicosulfuron was found to have a significant effect on vegetative and generative production of WS plants. The effect on RCC and postharvest seed germination was not so prominent. All this effects depended on the population, which is probably a result of different history of herbicide application and possible development of resistance in the populations R1-WS and R2-WS.
PB  - Julius Kühn-Institut
T2  - Julius-Kühn-Archiv
T1  - Effect of nicosulfuron on the populations of invasive weedy sunflower
EP  - 231
IS  - 452
SP  - 225
DO  - 10.5073/jka.2016.452.031
ER  - 

@article{
author = "Božić, Dragana and Vrbničanin, Sava and Stojicević, Darko and Pavlović, Danijela",
year = "2016",
abstract = "Weedy sunflower Helianthus annuus L. (WS) can become troublesome for cultivated sunflower given their genetic similarity which allows gene flow from weed-to-crop and from crop-to-weed. Also, it causes yield losses in different spring-sown crops. Despite this, there is still no data about its response to herbicides.
Field experiments were conducted to quantify the effects of nicosulfuron on WS populations. Plants of three populations (R1-WS and R2-WS = presumably resistant and S-WS = susceptible) were treated with 40 g nicosulfuron ha-1 at the 2–4 true-leaf growth stage. Vegetative parameters (plant height, fresh weight, leaf area) and relative chlorophyll content (RCC) were measured 30 days after herbicide application. Generative parameters (number of heads plant-1, head diameter, number of seeds plant-1) were measured at maturity. After harvesting, seed germination of collected seeds was studied in Petri dishes at 25°C.
Nicosulfuron was found to have a significant effect on vegetative and generative production of WS plants. The effect on RCC and postharvest seed germination was not so prominent. All this effects depended on the population, which is probably a result of different history of herbicide application and possible development of resistance in the populations R1-WS and R2-WS.",
publisher = "Julius Kühn-Institut",
journal = "Julius-Kühn-Archiv",
title = "Effect of nicosulfuron on the populations of invasive weedy sunflower",
pages = "231-225",
number = "452",
doi = "10.5073/jka.2016.452.031"
}

Božić, D., Vrbničanin, S., Stojicević, D.,& Pavlović, D.. (2016). Effect of nicosulfuron on the populations of invasive weedy sunflower. in Julius-Kühn-Archiv
Julius Kühn-Institut.(452), 225-231.
https://doi.org/10.5073/jka.2016.452.031

Božić D, Vrbničanin S, Stojicević D, Pavlović D. Effect of nicosulfuron on the populations of invasive weedy sunflower. in Julius-Kühn-Archiv. 2016;(452):225-231.
doi:10.5073/jka.2016.452.031 .

Božić, Dragana, Vrbničanin, Sava, Stojicević, Darko, Pavlović, Danijela, "Effect of nicosulfuron on the populations of invasive weedy sunflower" in Julius-Kühn-Archiv, no. 452 (2016):225-231,
https://doi.org/10.5073/jka.2016.452.031 . .