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Increased absorption and use of nutrients induced by Si is an indicator for tolerance to water deficit in a common bean cultivar cultivated in the field with and without application of K.
Teixeira, Gelza Carliane Marques; Gonzalez-Porras, Carlos Vital; Messias Ferreira, Patrícia; Prado, Renato De Mello; Silva Oliveira, Kamilla; Carvalho, Lívia Tálita da Silva; Palaretti, Luiz Fabiano.
Afiliação
  • Teixeira GCM; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
  • Gonzalez-Porras CV; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
  • Messias Ferreira P; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
  • Prado RM; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
  • Silva Oliveira K; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
  • Carvalho LTDS; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
  • Palaretti LF; Department of Soil Science, São Paulo State University, São Paulo, São Paulo, Brazil.
Front Plant Sci ; 15: 1421615, 2024.
Article em En | MEDLINE | ID: mdl-39239198
ABSTRACT

Introduction:

Reduced water content in the soil triggers physiological, biochemical, and morphological damage to plants, aggravated by nutritional deficiency. One possible strategy to mitigate this damage comprises the use of silicon (Si). This study investigated whether Si can mitigate the damage caused by water deficit through nutritional mechanisms in bean plants grown under field conditions. Furthermore, it investigated whether the effectiveness of Si is influenced by water availability in the soil and the Si dose supplied.

Methods:

Therefore, two split-plot experiments were carried out with and without K supply. In both experiments,the treatments comprised a 3 × 4 factorial scheme. Treatments included three water regimes 80% (no water deficit), 60% (moderate water deficit), and 40% (severe water deficit) of the soil's water retention capacity. Moreover, they comprised four doses of Si supplied via fertigation-0 kg/ha, 4 kg/ha, 8 kg/ha, and 12 kg/ha-arranged in a randomized block design with four replications. Results and

discussion:

The appropriate dose of Si to be applied increased with the severity of the water deficit, with the recommended dose being 6 kg/ha, 7 kg/ha, and 8 kg/ha of Si for adequate water conditions, moderate water deficit, and severe water deficit, respectively.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Front Plant Sci Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Front Plant Sci Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça