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Title: PHENOLOGY OF SPRING BARLEY (HORDEUM VULGARE) CULTIVARS REFLECT ADAPTION TO CLIMATE CHANGE: CASE STUDY OF PRIEKULI, LATVIA, 1928–2019
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PHENOLOGY OF SPRING BARLEY (HORDEUM VULGARE) CULTIVARS REFLECT ADAPTION TO CLIMATE CHANGE: CASE STUDY OF PRIEKULI, LATVIA, 1928–2019
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1314-2704
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English
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21
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5.1
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• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA |
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Climate change is having a major impact on the agricultural sector, affecting crop phenology and yields. The spring barley is one of the three major crops in Baltic region. The study has analysed the phenological phases of spring barley (Hordeum vulgare), evaluating the onset of three phases, sowing, heading and fully ripe, and the duration between phases over a near century (1928–2019) in Priekuli, Latvia. We have evaluated application of a phenological model for different varieties of spring barley. Air temperature increased significantly during the analysis period. In line with raising air temperature the phenologicla phases of the cereals, including spring barley have advanced. We observed yield increase as well, that, in part can be attributed to more favorable growing conditions for spring barley in early spring. Over the years 4 spring barley varieties with preserved phenological records have replaced each other starting from Zelta and Maja in early an middle 20th century to Abava and Ansis more recently. We found that accumulated active temperature needed to reach heading and full ripening phenological phases for modern spring barley varieties is 800°C-days and 1555°C-days respectively, that is increase up to 10% compared to varieties cultivated earlier. Overall, the growing period from sowing to heading had increased that appears to be due to introduction of new varieties as adaptation to the climate change. These findings are important to understand shifts in agrarian ecology and to further support adaptation measures to climate change.
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conference
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21st International Multidisciplinary Scientific GeoConference SGEM 2021
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21st International Multidisciplinary Scientific GeoConference SGEM 2021, 16 - 22 August, 2021
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Proceedings Paper
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STEF92 Technology
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SGEM International Multidisciplinary Scientific GeoConference
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci
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167-174
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16 - 22 August, 2021
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website
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cdrom
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8146
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spring barley (Hordeum vulgare) phenology; climate changes; phenological model; Baltics
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