Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes
Combining experimental studies on grain yield variability with crop model simulations in maize could assist in choosing the optimum maturity group for a certain location, counteracting the effect of climate change. However, studies considering specificities in Southeast Europe are lacking. The objec...
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MDPI AG
2021-09-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/11/9/887 |
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| author | Ivica Buhiniček Dražen Kaučić Zdravko Kozić Mirko Jukić Jerko Gunjača Hrvoje Šarčević Domagoj Stepinac Domagoj Šimić |
| author_facet | Ivica Buhiniček Dražen Kaučić Zdravko Kozić Mirko Jukić Jerko Gunjača Hrvoje Šarčević Domagoj Stepinac Domagoj Šimić |
| author_sort | Ivica Buhiniček |
| collection | DOAJ |
| description | Combining experimental studies on grain yield variability with crop model simulations in maize could assist in choosing the optimum maturity group for a certain location, counteracting the effect of climate change. However, studies considering specificities in Southeast Europe are lacking. The objectives were to put various environmental covariates including stress degree days (SDD) into FAO maturity settings to determine the impact of climate change on maize growing in Southeast Europe and to compare trends for grain yields over twenty years of maize experimental and simulation data grouped in five FAO maturity groups (FAO 200–FAO 600). Pre-registration yield trials of maize planted in one location in Croatia grown from 1996 to 2015 were used to determine “potential yield”. Correlation coefficients between 12 climate covariates and grain yield (GY) across the maturity groups revealed the tightest negative associations between SDD and GY that were weakened by later-maturity groups. Similar trends in GY were obtained by both experimental and simulation data, highlighting FAO 600 as a nearly no yield-reducing FAO group over the two decades. Our results indicate that choosing early maize hybrids in Southeast Europe does not seem to be an optimum option in the future, since these hybrids are more sensitive to omnipresent heat stress than late hybrids. |
| first_indexed | 2024-03-10T07:59:27Z |
| format | Article |
| id | doaj.art-d00f69583708418d8234eb3e93c85c6a |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T07:59:27Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-d00f69583708418d8234eb3e93c85c6a2023-11-22T11:36:09ZengMDPI AGAgriculture2077-04722021-09-0111988710.3390/agriculture11090887Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing GenotypesIvica Buhiniček0Dražen Kaučić1Zdravko Kozić2Mirko Jukić3Jerko Gunjača4Hrvoje Šarčević5Domagoj Stepinac6Domagoj Šimić7Bc Institute for Breeding and Production of Field Crops, Rugvica, Dugoselska 7, 10370 Dugo Selo, CroatiaCroatian Meteorological and Hydrological Service, Ravnice 48, 10000 Zagreb, CroatiaBc Institute for Breeding and Production of Field Crops, Rugvica, Dugoselska 7, 10370 Dugo Selo, CroatiaBc Institute for Breeding and Production of Field Crops, Rugvica, Dugoselska 7, 10370 Dugo Selo, CroatiaFaculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, CroatiaFaculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, CroatiaBc Institute for Breeding and Production of Field Crops, Rugvica, Dugoselska 7, 10370 Dugo Selo, CroatiaCentre of Excellence for Biodiversity and Molecular Plant Breeding (CroP-BioDiv), Svetošimunska Cesta 25, 10000 Zagreb, CroatiaCombining experimental studies on grain yield variability with crop model simulations in maize could assist in choosing the optimum maturity group for a certain location, counteracting the effect of climate change. However, studies considering specificities in Southeast Europe are lacking. The objectives were to put various environmental covariates including stress degree days (SDD) into FAO maturity settings to determine the impact of climate change on maize growing in Southeast Europe and to compare trends for grain yields over twenty years of maize experimental and simulation data grouped in five FAO maturity groups (FAO 200–FAO 600). Pre-registration yield trials of maize planted in one location in Croatia grown from 1996 to 2015 were used to determine “potential yield”. Correlation coefficients between 12 climate covariates and grain yield (GY) across the maturity groups revealed the tightest negative associations between SDD and GY that were weakened by later-maturity groups. Similar trends in GY were obtained by both experimental and simulation data, highlighting FAO 600 as a nearly no yield-reducing FAO group over the two decades. Our results indicate that choosing early maize hybrids in Southeast Europe does not seem to be an optimum option in the future, since these hybrids are more sensitive to omnipresent heat stress than late hybrids.https://www.mdpi.com/2077-0472/11/9/887maize hybridsgrain yieldrelative maturityheat stressSoutheast Europe |
| spellingShingle | Ivica Buhiniček Dražen Kaučić Zdravko Kozić Mirko Jukić Jerko Gunjača Hrvoje Šarčević Domagoj Stepinac Domagoj Šimić Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes Agriculture maize hybrids grain yield relative maturity heat stress Southeast Europe |
| title | Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes |
| title_full | Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes |
| title_fullStr | Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes |
| title_full_unstemmed | Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes |
| title_short | Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes |
| title_sort | trends in maize grain yields across five maturity groups in a long term experiment with changing genotypes |
| topic | maize hybrids grain yield relative maturity heat stress Southeast Europe |
| url | https://www.mdpi.com/2077-0472/11/9/887 |
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