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Revista Brasileira de Agropecuária Sustentável
Article . 2018 . Peer-reviewed
License: CC BY NC ND
Data sources: Crossref
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RESPOSTAS FISIOLÓGICAS DE DENDÊ SUBMETIDAS AO ESTRESSE HÍDRICO EM CONDIÇÕES DO CERRADO

Authors: Sérgio José da Costa; Eduardo Andrea Lemus Erasmo; Taynar Coelho de Oliveira Tavares; Joedna Silva;

RESPOSTAS FISIOLÓGICAS DE DENDÊ SUBMETIDAS AO ESTRESSE HÍDRICO EM CONDIÇÕES DO CERRADO

Abstract

Avaliou-se o desempenho de quatro híbridos de dendê sob estresse hídrico e irrigados em condições de cerrado. As variáveis consideradas em todos os materiais foram a fotossíntese líquida (A), os valores de transpiração (E), a condutância estomática (gs), a concentração de carbono interno (Ci) e a eficiência do uso da água (A E-1). Os cinco híbridos avaliados reduziram drasticamente a fotossíntese líquida sob condição de estresse hídrico. O BRS Manicoré e o BRS 2001 apresentaram redução drástica na condutância estomática. Para o balanço de carbono (Ci) os valores sugeriram que a manutenção de concentrações internas de CO2 foram relativamente altas sob estresse em todos os materiais, sendo o BRS 2001 com maior Ci, entretanto este mesmo material apresentou menor eficiência no uso da água. As plantas de Elaeis guineensis apresentaram baixa tolerância à deficiência hídrica nos solos de cerrado, entretanto nas condições que foi desenvolvido o trabalho pode se considerar que os híbridos BRS 2501 e BRS 2528, foram os mais eficientes fisiologicamente nas condições de estresse hídrico.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
gold