Detailed Information on Publication Record
2022
Effect of drought on wheat production in Poland between 1961 and 2019
OLEKSIAK, Tadeusz, Ioannis SPYROGLOU, Darmara PACON, Przemysław MATYSIK, Markéta PERNISOVÁ et. al.Basic information
Original name
Effect of drought on wheat production in Poland between 1961 and 2019
Authors
OLEKSIAK, Tadeusz, Ioannis SPYROGLOU (300 Greece, belonging to the institution), Darmara PACON, Przemysław MATYSIK, Markéta PERNISOVÁ (203 Czech Republic, guarantor, belonging to the institution) and Krystyna RYBKA (616 Poland)
Edition
Crop Science, Madison, Crop Science Society of America, 2022, 0011-183X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.300
RIV identification code
RIV/00216224:14740/22:00125565
Organization unit
Central European Institute of Technology
UT WoS
000751728300001
Keywords in English
drought;wheat production;Bayesian linear regression
Tags
International impact, Reviewed
Změněno: 11/1/2023 15:01, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
The impact of drought on wheat (Triticum aestivum L.) production is shown, using an example data set of almost 60 yr from six climate-specific regions in Poland. Drought was measured using the standardized precipitation index (SPI) and the hydro-thermal coefficient of Selyaninov (HTC). Yield trends were estimated by Bayesian linear regression over two periods, 1961-1991 and 1992-2019, identified by a changepoint detection method. Bayesian inference is used as it allows the estimation of a credible interval of regression coefficients instead of point estimates and asymptotic confidence intervals, thus comparisons between regression coefficients are more meaningful. We detected an increase in yield in both time periods and in all regions. The average winter wheat yield increased by 97% in the first period and by 35% in the second (19.8-39.1 dt ha(-1) and 32.9-44.5 dt ha(-1), respectively). Spring wheat yield increased by 96% in the first period and by 42% in the second (16.8-37.9 and 22.9-32.5 dt ha(-1), respectively). Yield losses in drought years were estimated using the paired t test to compare mean difference between real yields and yields estimated from regression lines for nondrought years. The highest yield losses due to drought were in regions I (-19.3% spring wheats, -6.3% winter ones) and III (-16.1% spring and -8.3% winter wheats) over the 1992-2019 period.
Links
| EF16_026/0008446, research and development project |
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