Data/hora: 16/06/2024 08:24:34

Biblioteca(s): | Epagri-Sede.
Data corrente: | 06/02/2024
Data da última atualização: | 06/02/2024
Autoria: | DUCATTI, R. D. B.; WORDELL FILHO, J. A.; TIRONI, S. P.; MAZARO, S. M.
Título: | Photosynthesis, Salicylic Acid Content and Enzyme Activity of Triticum aestivum L. Influenced by the Use of a Seaweed Biostimulant Based on Solieria chordalis.
Ano de publicação: | 2024
Fonte/Imprenta: | Journal of Plant Growth Regulation , Germany, p. 1-6, 2024.
Idioma: | Inglês

Conteúdo:

Plant elicitation offers numerous advantages for both plant development and defense, contributing significantly to the
promotion of sustainable agriculture. However, it is essential to recognize that the selection of appropriate experimental
designs and techniques is crucial as they directly impact the reliability and impartiality of the data obtained. The utilization
of incorrect methodologies can lead to biased and unreliable results. Therefore, an investigation was undertaken to evaluate
the elicitation potential of a red seaweed biostimulant (RSB), either independently or in combination with a fungicide, under
tightly controlled conditions using wheat (Triticum aestivum L.) plants. This study encompassed an assessment of various
parameters at different time intervals following the application of the elicitor, including catalase, superoxide dismutase,
ascorbate peroxidase, phenylalanine ammonia-lyase (PAL) activity, salicylic acid (SA) content, the incidence of powdery
mildew, photosynthetic rates, and instantaneous water use efficiency. The application of the RSB demonstrated a remarkable
ability to prevent the occurrence of powdery mildew in wheat plants. Conversely, the use of the fungicide, either in isolation
or in combination with the RSB, led to unfavorable outcomes, manifested as negative photosynthetic rates and a decrease in
the activity of certain enzymes. Importantly, it was observed that greater PAL activity did not necessarily correspond to an
increased accumulation of SA within the plants.

Thesagro: | Blumeria graminis; Increased resistance; Plant elicitation; Red seaweed; Systemic acquired resistance; Water use efficiency.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_59945.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (109227-1) - UPC - AP - DD -  -  -  - DIS