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Scientific paper - Original scientific paper
The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content
AGRONOMY-BASEL, 13 (2023), 8; 2008. https://doi.org/10.3390/agronomy13082008
Štefanić, Edita; Rašić, Sanda; Lucić, Pavo; Zimmer, Domagoj; Mijić, A.; Antunović, S.; Japundžić-Palenkić, B.; Lukačević, M.; Zima, D.; Stefanić, Ivan

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Štefanić, E., Rašić, S., Lucić, P., Zimmer, D., Mijić, A., Antunović, S. ... Stefanić, I. (2023). The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content. AGRONOMY-BASEL, 13. (8). doi: 10.3390/agronomy13082008

Štefanić, Edita, et al. "The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content." AGRONOMY-BASEL, vol. 13, no. 8, 2023. https://doi.org/10.3390/agronomy13082008

Štefanić, Edita, Sanda Rašić, Pavo Lucić, Domagoj Zimmer, A. Mijić, S. Antunović, B. Japundžić Palenkić, M. Lukačević, D. Zima and Ivan Stefanić. "The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content." AGRONOMY-BASEL 13, no. 8 (2023). https://doi.org/10.3390/agronomy13082008

Štefanić, E., et al. (2023) 'The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content', AGRONOMY-BASEL, 13(8). doi: 10.3390/agronomy13082008

Štefanić E, Rašić S, Lucić P, Zimmer D, Mijić A, Antunović S, and sur.. The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content. AGRONOMY-BASEL [Internet]. 2023 July 28 [cited 2025 April 03];13(8). doi: 10.3390/agronomy13082008

E. Štefanić, et al., "The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content", AGRONOMY-BASEL, vol. 13, no. 8, July 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:151:495104. [Accessed: 03 April 2025]

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Metadata
Title (english)The Critical Period ofWeed Control Influences Sunflower (Helianthus annuus L.) Yield, Yield Components but Not Oil Content
AuthorEdita Štefanić
AuthorSanda Rašić
AuthorPavo Lucić
AuthorDomagoj Zimmer
AuthorA. Mijić
AuthorS. Antunović
AuthorB. Japundžić-Palenkić
AuthorM. Lukačević
AuthorD. Zima
AuthorIvan Stefanić
Author's institutionJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(Department of Phytomedicine)
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Ecology and Environmental Protection
Abstract (english)
Field studies were conducted in the northeastern part of the Republic of Croatia to determine the influence of the critical period of weed interference on sunflower (Helianthus annuus) yield, yield components, and oil content. For this purpose, different durations of competition were established, allowing weeds to infest the crop for increasing periods of time after planting or maintaining plots weed-free for increasing periods of time after planting. The beginning and the end of the... More critical period of weed control (CPWC), based on a 5% and 10% loss of sunflower yield, were determined by fitting the four-parameter log-logistic equations to the relative seed yield. The total weed biomass increased progressively in relation to the increase in the competition. The beginning of the CPWC period, based on a 5% acceptable yield loss, ranged from 141 to 234 growing degree days (GDD), which corresponded to the two-to-four true leaf development stage (the V2–V4 growth stages) across both sites and years. The crop had to be kept weed-free until a period when sunflower inflorescence began to open and flower (the R4–R5 growth stage) or from 1365 to 1932 GDD. The sunflower yield and yield components varied between the years and among locations. An increasing duration of weed interference negatively affected crop height, head diameter, and 1000-kernel weight, but not seed oil content. Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - domestic
Publication versionPublished version
Journal titleAGRONOMY-BASEL
Numberingvol. 13, no. 8, 2008
e-ISSN2073-4395
DOIhttps://doi.org/10.3390/agronomy13082008
URN:NBNurn:nbn:hr:151:495104
Publication2023-07-28
Document URLhttps://www.mdpi.com/2073-4395/13/8/2008
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-06-06 11:43:58
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