| Autor: |
Alves DR; Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia - DAG, Laboratório de Processamento Vegetal, Núcleo de Estudos em Tecnologias para Secagem e Armazenamento - NETSA, Diamantina, MG, Brasil., Viana AJS; Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Laboratório Integrado de Pesquisas Multiusuário dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brasil., Andrade JCA; Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia - DAG, Laboratório de Processamento Vegetal, Núcleo de Estudos em Tecnologias para Secagem e Armazenamento - NETSA, Diamantina, MG, Brasil., Costa MRD; Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia - DAG, Núcleo de Estudos em Biotecnologia, Inovações e Melhoramento de Plantas - NEBIM, Setor de Olericultura, Diamantina, MG, Brasil., Nobre DAC; Universidade Federal dos Vales do Jequitinhonha e Mucuri - UFVJM, Departamento de Agronomia - DAG, Laboratório de Processamento Vegetal, Núcleo de Estudos em Tecnologias para Secagem e Armazenamento - NETSA, Diamantina, MG, Brasil. |
| Jazyk: |
angličtina |
| Zdroj: |
Brazilian journal of biology = Revista brasleira de biologia [Braz J Biol] 2024 Sep 02; Vol. 84, pp. e279415. Date of Electronic Publication: 2024 Sep 02 (Print Publication: 2024). |
| DOI: |
10.1590/1519-6984.279415 |
| Abstrakt: |
Salinity limits the growth and productivity of crops, to reverse these effects, natural pigments with antioxidant bioactivity can be studied, such as turmeric (Curcuma longa L.) and paprika (Capsicum annum L.). Therefore, it aimed to evaluate turmeric and paprika as possible saline stress attenuators and biostimulants during germination and initial development of smooth lettuce seedlings. In the laboratory, the seeds were treated for 1 hour with a solution of paprika and turmeric at doses 0 (negative control), 1, 2, 3 and 4 g L-1, and placed on a substrate with saline solution of sodium chloride 4 g L-1 (-0,4 Mpa), and a positive control, composed of dry seeds arranged in a substrate moistened with distilled water. Physiological quality analysis were carried out, and for the dose that showed the best result (4 g L-1), the treated seeds were grown in a greenhouse, and received weekly applications via foliar with a 4 g L-1 solution for turmeric and paprika. After the crop cycle, morphometric analyzes were performed. The turmeric and paprika solutions were analyzed by High-Performance Liquid Chromatography (HPLC) to identify the presence of bioactive substances. The turmeric doses were not efficient in overcoming the effects of salinity on seeds and seedlings, which was attributed to the low solubility of turmeric in water. Paprika, although it did not provide the biostimulant effect, was efficient in attenuating the effects of excess salt, at a concentration of 4 g L-1, promoting increases in physiological quality. In HPLC, a very low signal response was noted in relation to samples composed of turmeric and paprika solutions, indicating a low percentage of soluble compounds, which compromises bioactivity, and leads to the need for further analyses using surfactants and/or other solvents with which there is greater affinity. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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