Ação in vitro de fontes de silício sobre isolados de Curtobacterium flaccumfaciens pv. flaccumfaciens

Guazina, Renato Anastácio; Theodoro, Gustavo de Faria

doi:10.1590/0100-5405/2186

Cited by 2 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We hypothesize that, in the present study, aluminum silicate also had a direct influence on Phakopsora pachyrhizi to some extent due to the presence of aluminum, titanium, and iron in aluminum silicate, which might have exerted a direct action, at a certain degree, on the development of the pathogen (Guazina and Theodoro, 2017). We do not discard the possibility that other forms of action of potassium silicate might have occurred.…”

Section: Journal Of Agricultural Studiesmentioning

confidence: 53%

Agronomic and Economic Evaluation of Sequential Spray of Silicon and Fungicides for a Sustainable Soybean Crop

Guazina

Nass

Theodoro

et al. 2020

JAS

Self Cite

View full text Add to dashboard Cite

This study was carried out to determine whether the yield of soybean cultivars and the severity of Asian Soybean Rust (ASR) are influenced by foliar spray of silicon exclusively or along with a fungicide mixture, as well as the economic viability of their use for a sustainable crop. The experiment was performed in randomized-block design, five replicates, two soybean cultivars and (2×6) + 2 factorial arrangements: S1 (AlSi at R1 + R4); S2 (AlSi at R1 + R5.1); S3 (AlSi at R1 + FM at R4); S4 (FM at R1 + AlSi at R4); S5 (AlSi at R1 + FM at R5.1); S6 (FM at R1 + AlSi at R5.1); NC and PC (negative and positive control). The economic evaluation and sensitivity analysis were undertaken for Anta 82 RR. There was no interaction effect between the factors, and cultivar CD 2737 had a higher yield. ASR was less severe in CD 2737, and S3 and S5 provided the lowest disease severity. Exclusive spray of aluminum silicate was able to reduce the number of lesions with uredinia, open uredinia and uredinia per lesion. S3 increased grain yield, resulting in higher revenues and a 66.1% gross margin. Sensitivity analysis revealed that S3 was profitable in all scenarios.

show abstract

Section: Journal Of Agricultural Studiesmentioning

confidence: 53%

Agronomic and Economic Evaluation of Sequential Spray of Silicon and Fungicides for a Sustainable Soybean Crop

Guazina

Nass

Theodoro

et al. 2020

JAS

Self Cite

View full text Add to dashboard Cite

show abstract

Melaleuca Essential Oil (Melaleuca alternifolia cheel) in the Control of Beans Diseases

Matthieu,

Gilmar,

Lisandro Tomas

2024

J Plant Sci Phytopathol

View full text Add to dashboard Cite

Bean cultivation is vital to the global food and economy, especially in Brazil. Facing challenges from diseases that affect production, it is crucial to seek new strategies to maintain productivity and sustainability. Melaleuca alternifolia, known as the tea tree due to its medicinal properties, has little explored potential in controlling diseases in bean plants. The objective of this work was to evaluate the effectiveness of tea tree essential oil in controlling diseases in bean cultivation. In vitro tests were carried out to evaluate bacterial growth, at concentrations of (0.0%, 0.05%, 0.1%, 0.5%, 1% and 2%). And antibiogram with the bacteria Xanthomonas axonopodis pv. phaseoli, in different concentrations (0.0%, 0.05%, 0.1%, 0.5%, 1%, 2% and 3%). For the fungus Pseudocercospora griseola, sporulation tests were carried out, using direct and indirect methods, at concentrations of (0.0%, 0.05%, 0.1%, 0.5%, 1%, 2%, and 3%). Furthermore, for the fungus Colletotrichum lindemuthianum, mycelial growth tests were carried out with the same concentrations. The experiments took place in vivo, with a completely randomized statistical design, involving five replications per treatment and concentrations varying from (0.0%, 0.05%, 0.1%, 0.5%, 1% and 2%). Disease incidence was assessed using a diagrammatic scale, disease severity, Area under the Disease Progress Curve (AACPD) and Area under the Incidence Progress Curve (AACPI). Melaleuca Essential Oil (EO) inhibited the development of fungi and bacteria in in vitro tests starting at 0.5%. In vivo, Melaleuca Essential Oil (EO) showed a significant reduction in the incidence and severity of the disease from 0.5% in both fungi and bacteria. Melaleuca EO can be an effective alternative for disease control in bean cultivation.

show abstract

Ação in vitro de fontes de silício sobre isolados de Curtobacterium flaccumfaciens pv. flaccumfaciens

Cited by 2 publications

References 20 publications

Agronomic and Economic Evaluation of Sequential Spray of Silicon and Fungicides for a Sustainable Soybean Crop

Agronomic and Economic Evaluation of Sequential Spray of Silicon and Fungicides for a Sustainable Soybean Crop

Melaleuca Essential Oil (Melaleuca alternifolia cheel) in the Control of Beans Diseases

Contact Info

Product

Resources

About