| Registro completo |
| Provedor de dados: |
AGRIAMBI
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| País: |
Brazil
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| Título: |
Silicon and boron mitigate the effects of water deficit on sunflower
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| Autores: |
Neves,Jose M. G.
Aquino,Leonardo A. de
Berger,Paulo G.
Neves,Júlio C. L.
Rocha,Genelício C.
Barbosa,Edimilson A.
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| Data: |
2019-03-01
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| Ano: |
2019
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| Palavras-chave: |
Helianthus annuus
Chlorophyll fluorescence
Gas exchange
Leaf water potential
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| Resumo: |
ABSTRACT The objective of this study was to evaluate the effect of Ca and Mg silicate and B on the gas exchange, leaf water potential and chlorophyll fluorescence parameters in the sunflower variety Embrapa 122 -V2000 under water stress conditions. The trial was conducted in Red Yellow Latosol with very clayey texture, with contrasting levels of Si and B and subjected to water deficit. The experimental design was randomized blocks in a 24 factorial arrangement, with five replicates. Treatments consisted of the combination of two acidity corrective agents (calcium magnesium silicate and dolomitic limestone), two levels of base saturation (30 and 70%), two levels of B (0.18 mg dm-3 - value available in the soil and 1.20 mg dm-3) and two water regimes (with and without water stress from the beginning of flowering). It can be concluded that the supply of Si and B can reduce the damage to sunflower caused by water stress.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000300175
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| Editor: |
Departamento de Engenharia Agrícola - UFCG
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| Relação: |
10.1590/1807-1929/agriambi.v23n3p175-182
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Engenharia Agrícola e Ambiental v.23 n.3 2019
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| Direitos: |
info:eu-repo/semantics/openAccess
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