This study aimed to evaluate the effect of silicon and acibenzolar-S-methyl sources on the development of yellow melon (Cucumis melo L.) in the field and the occurrence of diseases in different years. The treatments consisted ofthe silicon sources Agrosilício® (3 g L−1), Rocksil® (3 g L−1), and Chelal® Si (2 L 100 L−1), the additional treatments acibenzolar-S-methyl (ASM) (2 mM) and the fungicide thiabendazole (400 mL 100 L−1), and a control (sterile distilled water). The following characteristics were evaluated: natural incidence of diseases; gas exchange: CO2 assimilation rate, transpiration, stomatal conductance, internal CO2 concentration, water use efficiency, instantaneous water use efficiency, and carboxylation; postharvest aspects: fruit weight, pulp thickness, pulp firmness, titratable acidity, pH, soluble solids, and vitamin C content; productivity; and the enzymatic activity of peroxidases, polyphenol oxidases, and phenylalanine ammonia-lyase. No significant response was observed for naturally occurring diseases. Treatments with Chelal®Si, Rocksil®, and Thiabendazole® increased photosynthetic and transpiration rates in the yellow melon. The silicon and ASM sources did not influence the physicochemical characteristics or the enzymatic activity of fruits. No effect was observed on the biometric characteristics, productivity, and chemical quality of fruits in both years of cultivation. Si sources increased photosynthetic rate and transpiration. However, no diseases were observed during the experimental period. Leaf spraying with silicon and acibenzolar-S-methyl sources did not influence the biometric characteristics and fruit production of yellow melon. The silicon and acibenzolar-S-methyl sources did not induce an increase in the enzymatic activity of peroxidases, polyphenol oxidase, and phenylalanine ammonia-lyase. Fruit production was higher in 2020.

Mirelly Miguel Porcino

Valdeir de Souza Oliveira

Edcarlos Camilo da Silva

Maria Silvana Nunes

Bárbara Moura Tico

Guilherme Chaves de Holanda

Mileny dos Santos de Souza

Luciana Cordeiro do Nascimento

Acta Scientiarum Agronomy

该杂志发表农学所有领域的原创文章，包括土壤科学、农业昆虫学、土壤肥力和肥料、土壤物理学、栽培植物生理学、植物病理学、植物健康、植物技术、成因、形态和土壤分类、管理和保护土壤、植物病虫害综合治理、植物改良、农业微生物学、农业寄生虫学、种子生产和加工。

The journal "Acta Scientiarum - Agronomy" publishes original research articles in all fields of agronomy, including soil science, agricultural entomology, soil fertility and fertilization, soil physics, crop physiology, plant pathology, plant health, plant technology, soil genesis, morphology and classification, soil management and conservation, integrated pest management, plant breeding, agricultural microbiology, agricultural parasitology, and seed production and processing.

《Acta Scientiarum - Agronomy》杂志发表农学各个领域的原创研究文章，涵盖土壤科学、农业昆虫学、土壤肥力与施肥、土壤物理学、栽培植物生理学、植物病理学、植物健康、植物技术、土壤的成因、形态与分类、土壤管理与保护、植物病虫害综合治理、植物改良、农业微生物学、农业寄生虫学，以及种子生产与加工等主题。

Category	Quartile
农林科学	4
农林科学, 农艺学	4

Field management of yellow melon (Cucumis melo L.) with silicon sources

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