Climate change and its associated higher frequency and severity of adverse weather events require geno-typic adaptation. Process-based ecophysiological modelling offers a powerful means to better target andaccelerate development of new crop cultivars. Barley (Hordeum vulgare L.) is an important crop through-out the world, and a good model for study of the genetics of stress adaptation because many quantitativetrait loci and candidate genes for biotic and abiotic stress tolerance have been identified in it. Here, wedeveloped a new approach to design future crop ideotypes using an ensemble of eight barley simulationmodels (i.e. APSIM, CropSyst, HERMES, MCWLA, MONICA, SIMPLACE, SiriusQuality, and WOFOST), andapplied it to design climate-resilient barley ideotypes for Boreal and Mediterranean climatic zones inEurope. The results showed that specific barley genotypes, represented by sets of cultivar parametersin the crop models, could be promising under future climate change conditions, resulting in increasedyields and low inter-annual yield variability. In contrast, other genotypes could result in substantialyield declines. The most favorable climate-zone-specific barley ideotypes were further proposed, havingcombinations of several key genetic traits in terms of phenology, leaf growth, photosynthesis, droughttolerance, and grain formation. For both Boreal and Mediterranean climatic zones, barley ideotypes underfuture climatic conditions should have a longer reproductive growing period, lower leaf senescence rate,larger radiation use efficiency or maximum assimilation rate, and higher drought tolerance. Such char-acteristics can produce substantial positive impacts on yields under contrasting conditions. Moreover,barley ideotypes should have a low photoperiod and high vernalization sensitivity for the Boreal cli-matic zone; for the Mediterranean, in contrast, it should have a low photoperiod and low vernalizationsensitivity. The drought-tolerance trait is more beneficial for the Mediterranean than for the Boreal cli-matic zone. Our study demonstrates a sound approach to design future barley ideotypes based on anensemble of well-tested, diverse crop models and on integration of knowledge from multiple disciplines.The robustness of model-aided ideotypes design can be further enhanced by continuously improvingcrop models and enhancing information exchange between modellers, agro-meteorologists, geneticists,physiologists, and plant breeders.

Designing future barley ideotypes using a crop model ensemble / Tao, Fulu; Rötter, Reimund P.; Palosuo, Taru; Díaz-Ambrona, C.G.H.; Mínguez, M. Inés; Semenov, Mikhail A.; Kersebaum, Kurt Christian; Nendel, Claas; Cammarano, Davide; Hoffmann, Holger; Ewert, Frank; Dambreville, Anaelle; Martre, Pierre; Rodríguez, Lucía; Ruiz-Ramos, Margarita; Gaiser, Thomas; Höhn, Jukka G.; Salo, Tapio; Ferrise, Roberto; Bindi, Marco; Schulman, Alan H.. - In: EUROPEAN JOURNAL OF AGRONOMY. - ISSN 1161-0301. - STAMPA. - 82:(2017), pp. 144-162. [10.1016/j.eja.2016.10.012]

Designing future barley ideotypes using a crop model ensemble

FERRISE, ROBERTO;BINDI, MARCO;
2017

Abstract

Climate change and its associated higher frequency and severity of adverse weather events require geno-typic adaptation. Process-based ecophysiological modelling offers a powerful means to better target andaccelerate development of new crop cultivars. Barley (Hordeum vulgare L.) is an important crop through-out the world, and a good model for study of the genetics of stress adaptation because many quantitativetrait loci and candidate genes for biotic and abiotic stress tolerance have been identified in it. Here, wedeveloped a new approach to design future crop ideotypes using an ensemble of eight barley simulationmodels (i.e. APSIM, CropSyst, HERMES, MCWLA, MONICA, SIMPLACE, SiriusQuality, and WOFOST), andapplied it to design climate-resilient barley ideotypes for Boreal and Mediterranean climatic zones inEurope. The results showed that specific barley genotypes, represented by sets of cultivar parametersin the crop models, could be promising under future climate change conditions, resulting in increasedyields and low inter-annual yield variability. In contrast, other genotypes could result in substantialyield declines. The most favorable climate-zone-specific barley ideotypes were further proposed, havingcombinations of several key genetic traits in terms of phenology, leaf growth, photosynthesis, droughttolerance, and grain formation. For both Boreal and Mediterranean climatic zones, barley ideotypes underfuture climatic conditions should have a longer reproductive growing period, lower leaf senescence rate,larger radiation use efficiency or maximum assimilation rate, and higher drought tolerance. Such char-acteristics can produce substantial positive impacts on yields under contrasting conditions. Moreover,barley ideotypes should have a low photoperiod and high vernalization sensitivity for the Boreal cli-matic zone; for the Mediterranean, in contrast, it should have a low photoperiod and low vernalizationsensitivity. The drought-tolerance trait is more beneficial for the Mediterranean than for the Boreal cli-matic zone. Our study demonstrates a sound approach to design future barley ideotypes based on anensemble of well-tested, diverse crop models and on integration of knowledge from multiple disciplines.The robustness of model-aided ideotypes design can be further enhanced by continuously improvingcrop models and enhancing information exchange between modellers, agro-meteorologists, geneticists,physiologists, and plant breeders.
2017
82
144
162
Tao, Fulu; Rötter, Reimund P.; Palosuo, Taru; Díaz-Ambrona, C.G.H.; Mínguez, M. Inés; Semenov, Mikhail A.; Kersebaum, Kurt Christian; Nendel, Claas; Cammarano, Davide; Hoffmann, Holger; Ewert, Frank; Dambreville, Anaelle; Martre, Pierre; Rodríguez, Lucía; Ruiz-Ramos, Margarita; Gaiser, Thomas; Höhn, Jukka G.; Salo, Tapio; Ferrise, Roberto; Bindi, Marco; Schulman, Alan H.
File in questo prodotto:
File Dimensione Formato  
Tao et al. - 2016 - Designing future barley ideotypes using a crop mod.pdf

Accesso chiuso

Descrizione: Articolo principale
Tipologia: Pdf editoriale (Version of record)
Licenza: Tutti i diritti riservati
Dimensione 3.81 MB
Formato Adobe PDF
3.81 MB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1071328
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 77
  • ???jsp.display-item.citation.isi??? 76
social impact