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Meteorological Variables That Affect the Beginning of Flowering of the Winter Oilseed Rape in the Czech Republic
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SYSNO ASEP 0549326 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Meteorological Variables That Affect the Beginning of Flowering of the Winter Oilseed Rape in the Czech Republic Author(s) Hájková, L. (CZ)
Možný, M. (CZ)
Oušková, V. (CZ)
Bartošová, Lenka (UEK-B) RID, SAI, ORCID
Dížková, Petra (UEK-B) SAI, RID, ORCID
Žalud, Zdeněk (UEK-B) RID, ORCID, SAINumber of authors 6 Article number 1444 Source Title Atmosphere. - : MDPI
Roč. 12, č. 11 (2021)Number of pages 18 s. Language eng - English Country CH - Switzerland Keywords brassica-napus l. ; climate-change ; allergenic pollen ; germination ; phenology ; yield ; plant ; phenophases ; temperature ; trends ; Brassica napus ; air temperature ; PhenoClim model ; bbch60 ; beginning of flowering Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Meteorology and atmospheric sciences R&D Projects EF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) QK1910338 GA MZe - Ministry of Agriculture (MZe) Research Infrastructure CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000725104300001 EID SCOPUS 85118477803 DOI 10.3390/atmos12111444 Annotation Winter oilseed rape (Brassica napus) is one of the most cultivated oilseeds in the Czech Republic and belongs among major pollen allergens. Pollen allergies have an extensive clinical impact worldwide, and as well as in the Czech Republic. In this paper, meteorological variables such as mean air temperature, maximum and minimum air temperature, precipitation total and number of rainy days in the period 1991-2012 were studied using the PhenoClim phenological model to find the best predictor of the beginning of flowering of the Brassica napus in the Czech Republic. In addition, temporal and spatial evaluations of the beginning of flowering of the Brassica napus were examined at individual stations in different climatic zones within the same period. In total, three phenological stations at altitudes from 270 m asl to 533 m asl located in warm (W2), medium warm (MW7) or cold (C7) climatic zones were used for detailed evaluation. Based on the observation results at selected stations, the beginning of flowering of the Brassica napus advanced progressively in timing (nearly15 days) in the 1991-2012 period. The base temperature and temperature sums were calculated for the beginning of flowering of the winter oilseed rape using the PhenoClim computer tool. As the most accurate predictor for the beginning of flowering of the Brassica napus, the mean air temperature was determined. The optimal start day for calculation was 30th January, the threshold (base temperature) was 6.0 & DEG,C and the temperature sum was 157.0 & DEG,C. The RMSE value was 4.77 and the MBE value was3.00. The simulated data had a good correlation with the real observed data (the correlation coefficients were within the range from 0.56 to 0.76), and the PhenoClim model results indicate using them in the forecast modeling of the beginning of flowering of the Brassica napus in the Czech Republic. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2022 Electronic address https://click.endnote.com/viewer?doi=10.3390%2Fatmos12111444&token=WzI5NjkzMTIsIjEwLjMzOTAvYXRtb3MxMjExMTQ0NCJd.htmL74u0vjDXEKjzwaxLvSCWzEc
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