The influence of Ambrosia trifida on vegetative production of A. artemisiifolia
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Ambrosia artemisiifolia (common ragweed) and A. trifida (giant ragweed) are very important weed species that are invasive in Serbia and are often found in agricultural regions. When these weeds are present at high densities, crop yields can be significantly reduced or even completely destroyed. Unlike A. artemisiifolia, A. trifida is locally present in the Central Bačka region (Vojvodina province), and it is expected that its area of distribution will expand in the future. Starting from the assumption that future distribution of A. trifida could take on larger proportions than now, the aim of this study was focused on examining the interaction between these two species. Experiments were conducted using the replacement design model, in which Ambrosia trifida/Ambrosia artemisiifolia per m2, were planted as density ratios of 10/0; 8/2; 4/6; 6/4; 2/8, and 0/10, in a completely randomized block system with four replications. The vegetative parameters (height and dry mass) of A. artemisiifol...ia were measured in July, August and September over a period of two years (2016 and 2017), and the results were statistically analysed in the Statistical Package for the Social Sciences (SPSS 23). In July 2016, the average height of A. artemisiifolia was in the range between 35.00 and 50.40 cm, in August it was from 68.00 to 95.50 cm, and between 83.75 and 99.80 cm in September. In the following season (2017), the corresponding values ranged from 56.19 to 78.50 (July), 98.38 to 125.50 cm (August) and 111.19 to 148.50 (September). An increase in the number of A. artemisiifolia plants and decrease in A. trifida counts per m2 caused an increase in the dry mass of A. artemisiifolia per plant. The dry mass of A. artemisiifolia ranged from 4.22 to 6.11 g/plant (July), 8.96 to 10.27 g/plant (August) and 7.04 to 19.53 g/plant (September). In the following season, these values ranged from 9.62 to 14.60 g/plant, 14.37 to 28.90 g/plant, and 23.43 to 40.47 g/plant in July, August and September, respectively. Minimum values of vegetative parameters were recorded in the treatment with 2 plants, and maximum in the treatment with 10 A. artemisiifolia plants/m2. This means that interspecific competition is more pronounced in this ragweed species than intraspecific competition.
Keywords:
Ambrosia / common ragweed / giant ragweed / competition / vegetative parametersSource:
Pesticides and Phytomedicine/Pesticidi i fitomedicina, 2020, 35, 2, 105-115Publisher:
- Institute of Pesticides and Environmental Protection, Belgrade & Plant Protection Society of Serbia, Belgrade
Funding / projects:
- Development of integrated management of harmful organisms in plant production in order to overcome resistance and to improve food quality and safety (RS-46008)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200116 (University of Belgrade, Faculty of Agriculture) (RS-200116)
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IZBISTY - JOUR AU - Savić, Aleksandra AU - Pavlović, Danijela AU - Božić, Dragana AU - Vrbničanin, Sava AU - Mileusnić, Ana PY - 2020 UR - https://plantarum.izbis.bg.ac.rs/handle/123456789/839 AB - Ambrosia artemisiifolia (common ragweed) and A. trifida (giant ragweed) are very important weed species that are invasive in Serbia and are often found in agricultural regions. When these weeds are present at high densities, crop yields can be significantly reduced or even completely destroyed. Unlike A. artemisiifolia, A. trifida is locally present in the Central Bačka region (Vojvodina province), and it is expected that its area of distribution will expand in the future. Starting from the assumption that future distribution of A. trifida could take on larger proportions than now, the aim of this study was focused on examining the interaction between these two species. Experiments were conducted using the replacement design model, in which Ambrosia trifida/Ambrosia artemisiifolia per m2, were planted as density ratios of 10/0; 8/2; 4/6; 6/4; 2/8, and 0/10, in a completely randomized block system with four replications. The vegetative parameters (height and dry mass) of A. artemisiifolia were measured in July, August and September over a period of two years (2016 and 2017), and the results were statistically analysed in the Statistical Package for the Social Sciences (SPSS 23). In July 2016, the average height of A. artemisiifolia was in the range between 35.00 and 50.40 cm, in August it was from 68.00 to 95.50 cm, and between 83.75 and 99.80 cm in September. In the following season (2017), the corresponding values ranged from 56.19 to 78.50 (July), 98.38 to 125.50 cm (August) and 111.19 to 148.50 (September). An increase in the number of A. artemisiifolia plants and decrease in A. trifida counts per m2 caused an increase in the dry mass of A. artemisiifolia per plant. The dry mass of A. artemisiifolia ranged from 4.22 to 6.11 g/plant (July), 8.96 to 10.27 g/plant (August) and 7.04 to 19.53 g/plant (September). In the following season, these values ranged from 9.62 to 14.60 g/plant, 14.37 to 28.90 g/plant, and 23.43 to 40.47 g/plant in July, August and September, respectively. Minimum values of vegetative parameters were recorded in the treatment with 2 plants, and maximum in the treatment with 10 A. artemisiifolia plants/m2. This means that interspecific competition is more pronounced in this ragweed species than intraspecific competition. PB - Institute of Pesticides and Environmental Protection, Belgrade & Plant Protection Society of Serbia, Belgrade T2 - Pesticides and Phytomedicine/Pesticidi i fitomedicina T1 - The influence of Ambrosia trifida on vegetative production of A. artemisiifolia EP - 115 IS - 2 SP - 105 VL - 35 DO - 10.2298/PIF2002105S ER -
@article{ author = "Savić, Aleksandra and Pavlović, Danijela and Božić, Dragana and Vrbničanin, Sava and Mileusnić, Ana", year = "2020", abstract = "Ambrosia artemisiifolia (common ragweed) and A. trifida (giant ragweed) are very important weed species that are invasive in Serbia and are often found in agricultural regions. When these weeds are present at high densities, crop yields can be significantly reduced or even completely destroyed. Unlike A. artemisiifolia, A. trifida is locally present in the Central Bačka region (Vojvodina province), and it is expected that its area of distribution will expand in the future. Starting from the assumption that future distribution of A. trifida could take on larger proportions than now, the aim of this study was focused on examining the interaction between these two species. Experiments were conducted using the replacement design model, in which Ambrosia trifida/Ambrosia artemisiifolia per m2, were planted as density ratios of 10/0; 8/2; 4/6; 6/4; 2/8, and 0/10, in a completely randomized block system with four replications. The vegetative parameters (height and dry mass) of A. artemisiifolia were measured in July, August and September over a period of two years (2016 and 2017), and the results were statistically analysed in the Statistical Package for the Social Sciences (SPSS 23). In July 2016, the average height of A. artemisiifolia was in the range between 35.00 and 50.40 cm, in August it was from 68.00 to 95.50 cm, and between 83.75 and 99.80 cm in September. In the following season (2017), the corresponding values ranged from 56.19 to 78.50 (July), 98.38 to 125.50 cm (August) and 111.19 to 148.50 (September). An increase in the number of A. artemisiifolia plants and decrease in A. trifida counts per m2 caused an increase in the dry mass of A. artemisiifolia per plant. The dry mass of A. artemisiifolia ranged from 4.22 to 6.11 g/plant (July), 8.96 to 10.27 g/plant (August) and 7.04 to 19.53 g/plant (September). In the following season, these values ranged from 9.62 to 14.60 g/plant, 14.37 to 28.90 g/plant, and 23.43 to 40.47 g/plant in July, August and September, respectively. Minimum values of vegetative parameters were recorded in the treatment with 2 plants, and maximum in the treatment with 10 A. artemisiifolia plants/m2. This means that interspecific competition is more pronounced in this ragweed species than intraspecific competition.", publisher = "Institute of Pesticides and Environmental Protection, Belgrade & Plant Protection Society of Serbia, Belgrade", journal = "Pesticides and Phytomedicine/Pesticidi i fitomedicina", title = "The influence of Ambrosia trifida on vegetative production of A. artemisiifolia", pages = "115-105", number = "2", volume = "35", doi = "10.2298/PIF2002105S" }
Savić, A., Pavlović, D., Božić, D., Vrbničanin, S.,& Mileusnić, A.. (2020). The influence of Ambrosia trifida on vegetative production of A. artemisiifolia. in Pesticides and Phytomedicine/Pesticidi i fitomedicina Institute of Pesticides and Environmental Protection, Belgrade & Plant Protection Society of Serbia, Belgrade., 35(2), 105-115. https://doi.org/10.2298/PIF2002105S
Savić A, Pavlović D, Božić D, Vrbničanin S, Mileusnić A. The influence of Ambrosia trifida on vegetative production of A. artemisiifolia. in Pesticides and Phytomedicine/Pesticidi i fitomedicina. 2020;35(2):105-115. doi:10.2298/PIF2002105S .
Savić, Aleksandra, Pavlović, Danijela, Božić, Dragana, Vrbničanin, Sava, Mileusnić, Ana, "The influence of Ambrosia trifida on vegetative production of A. artemisiifolia" in Pesticides and Phytomedicine/Pesticidi i fitomedicina, 35, no. 2 (2020):105-115, https://doi.org/10.2298/PIF2002105S . .