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Sensitivity of the sorghum yield to individual changes in climate parameters: modelling based approach Bragantia
Grossi,Marine Cirino; Justino,Flávio; Rodrigues,Rafael de Ávila; Andrade,Camilo Lelis Teixeira.
Based on sensitivity analyses the effect of changing in climate on sorghum has been investigated. This has been achieved by conducting crop modeling experiments carried out with weather observations and output of global climate models. As can be anticipated results demonstrated that the sorghum yield is more sensitive to rainfall, solar radiation and CO2 concentration. However, the increase in CO2 concentration has a positive effect on yield in years that the crop is submitted to water stress. This effect is extremely reduced under well watered conditions and therefore is subject to the climate inter-annual variability. Accumulated solar radiation along the sorghum cycle below 1900 MJ m–2 has also been shown to reduce the yield. Compared to other weather...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Crop models; Sensitivity analyses; CO2 concentration; Productivity.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000300341
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