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- Title
Silicon Mitigates the Attack of Pests and Diseases on Ipê-Roxo (Handroanthus impetiginosus) Seedlings.
- Authors
da Silva, Talita Cristina Campos Pereira; da Costa Vieira, Gustavo Haralampidou; Serafim, Gabriela Moura; da Silva, Kelly Gabriela Pereira; Araujo, Suleiman Leiser; Costa, Edilson; da Silva Binotti, Flávio Ferreira; Vendruscolo, Eduardo Pradi; Martins, Murilo Battistuzzi
- Abstract
Background: Silicon in plants is a structuring element that promotes water and saline stress tolerance and decreases transpiration. The silica accumulated in the cuticle establishes a physical barrier and helps fight against pests and diseases. The present study aimed to evaluate the development of ipê-roxo (Handroanthus impetiginosus) seedlings in different environments, and the application of potassium silicate and its efficiency in mitigating the attack of pests and diseases. Methods: The experiment was carried out in an agricultural greenhouse and under full sun with silicic doses of 0 and 7.15 mg per plant in a completely randomized design arranged in a 2 × 2 factorial scheme, with 6 replications of 4 seedlings per plot. Plant height, chlorophyll, stem diameter, number of leaves, shoot dry matter, root dry matter, total dry matter, height-diameter ratio, root-shoot ratio, root-plant ratio, Dickson quality index, disease severity, and pest intensity were evaluated. Results: Silicon application did not confer biometric qualities to the seedlings. The application of silicon conferred 24.6% higher protection against disease severity at a 90% probability level. The protected environment promoted 48.8% more protection against the attack of pests on the seedlings. The silicon application decreases the intensity of pests in the protected environment by 36.3%. Seedlings in a protected environment increase the production of chlorophyll but are 29.6% more susceptible to the severity of diseases. The full sun promoted greater diameters, phytomass, and Dickson quality index by 18%, 73%, and 195%, respectively. Conclusions: The best Handroanthus impetiginosus seedlings were obtained under full sun. Silicon mitigated the attack of pests and diseases on Handroanthus impetiginosus seedlings.
- Subjects
PESTS; SALINE waters; POTASSIUM silicate; SEEDLING quality; SILICON
- Publication
Arboriculture & Urban Forestry, 2024, Vol 50, Issue 2, p145
- ISSN
1935-5297
- Publication type
Article
- DOI
10.48044/jauf.2024.001