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| Streck,Nereu Augusto; Langner,Josana Andréia; Lago,Isabel. |
| The objective of this work was to simulate maize leaf development in climate change scenarios at Santa Maria, RS, Brazil, considering symmetric and asymmetric increases in air temperature. The model of Wang & Engel for leaf appearance rate (LAR), with genotype-specific coefficients for the maize variety BRS Missões, was used to simulate tip and expanded leaf accumulated number from emergence to flag leaf appearance and expansion, for nine emergence dates from August 15 to April 15. LAR model was run for each emergence date in 100-year climate scenarios: current climate, and +1, +2, +3, +4 and +5°C increase in mean air temperature, with symmetric and asymmetric increase in daily minimum and maximum air temperature. Maize crop failure due to frost... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Elevated temperature; Frost risk; Global warming; Leaf appearance; Vegetative development. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001100001 |
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| Tironi,Luana Fernandes; Streck,Nereu Augusto; Santos,Amanda Thirza Lima; Freitas,Charles Patrick de Oliveira de; Uhlmann,Lilian Osmari; Oliveira Júnior,Wolnei Castro de; Ferraz,Simone Erotildes Teleginski. |
| ABSTRACT: The objective of this study was to simulate the yield of two cassava cultivars in two IPCC future climate scenarios, the SRES-A1B (Cmip3) and the RCP4.5 (Cmip5), for the state of Rio Grande do Sul, Brazil. The Simanihot model, with the Thornthwaite and Mather water balance sub-model, and the SRES-A1B (Cmip3 - Third Coupled Model Intercomparison Project) and RCP4.5 (Cmip5 - Fifth Coupled Model Intercomparison Project) scenarios of the Fourth and Fifth IPCC Assessment Report, respectively, was used. Cassava cultivars used in this study were 'Fepagro - RS13' (forrage) and 'Estrangeira' (human consumption). In both cultivars, there was an increase in tuberous roots yield in future climate scenarios. The cultivar for human consumption benefits more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Simanihot; Agricultural modeling; Elevated temperature; Elevated CO2. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200204 |
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