2014
DOI: 10.1590/s0100-204x2014001200001
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Mudanças climáticas e seus efeitos no rendimento de arroz irrigado no Rio Grande do Sul

Abstract: Resumo -O objetivo deste trabalho foi estimar o rendimento de grãos de arroz irrigado nas regiões orizícolas do Estado do Rio Grande do Sul, em diferentes datas de semeadura, em cenário climático futuro -cenário A1B do Painel Intergovernamental sobre Mudanças Climáticas (IPCC) -e determinar as possíveis alterações no atual calendário de semeadura do arroz irrigado nesse cenário. O modelo SimulArroz foi usado, tendo-se considerado três grupos de maturação (precoce, médio e tardio) e sete datas de semeadura (1/8… Show more

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Cited by 13 publications
(9 citation statements)
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“…This impact hinders development because it shortens the cycle duration and reduces yield, due to the reduction of photosynthesis and the accumulation of photoassimilates (Fagundes et al, 2010). Thus, studies examining the potential impacts of climatic changes on the development of annual and perennial species are important in scenarios with promising economic potential (IPCC, 2013;Walter et al, 2014), such as olive trees that are cultivated in the southern and southeastern regions of Brazil (Martins et al, 2012;Wrege et al, 2015;Santos et al, 2017b).…”
Section: Introductionmentioning
confidence: 99%
“…This impact hinders development because it shortens the cycle duration and reduces yield, due to the reduction of photosynthesis and the accumulation of photoassimilates (Fagundes et al, 2010). Thus, studies examining the potential impacts of climatic changes on the development of annual and perennial species are important in scenarios with promising economic potential (IPCC, 2013;Walter et al, 2014), such as olive trees that are cultivated in the southern and southeastern regions of Brazil (Martins et al, 2012;Wrege et al, 2015;Santos et al, 2017b).…”
Section: Introductionmentioning
confidence: 99%
“…O dimensionamento do risco de ocorrência de temperaturas máximas extremas mensais e anual são informações relevantes para o planejamento e a tomada de decisões de agricultores e órgãos governamentais, pois podem diminuir os impactos causados pelos níveis máximos de temperatura (ASTOLPHO et al, 2004). Em seus níveis mais elevados, é um dos elementos climáticos de maior importância para o crescimento, o desenvolvimento e a produtividade de culturas como o arroz, a soja e o milho (WALTER et al, 2014).…”
Section: Introductionunclassified
“…Wa t e r d e f i c i t i s a l i m i t i n g f a c t o r (ALBUQUERQUE et al, 2013) that affects the growth and development of crops CARLESSO, 1998), with effects on diverse physiological processes of plants (PEIXOTO et al, 2006), and thermal conditions influence phenological development (WAGNER et al, 2011;WALTER et al, 2014). Air temperatures <11 °C stop lychee growth, and the crop has high vegetative growth in hot regions, reducing the formation of flowers and fruits (MENZEL;PAXTON, 1985).…”
Section: Introductionmentioning
confidence: 99%