| Texto completo | |
| Autor(es): Mostrar menos - |
Neves, Caio Scardini
;
Bonfim, Filipe Pereira Giardini
;
Campos, Olivia Pak
;
Viriato, Viviany
;
Fernandes, Gustavo Do Carmo
;
Cabral, Mariana Nunes Ferreira
;
Fortuna, Gabriel Cassia
;
De Oliveira, Sthefani Goncalves
;
Rabinowitz, Adam N.
;
Sarnighausen, Valeria Cristina Rodrigues
;
Ono, Elizabeth Orika
;
Silva, Julio Cesar Rodrigues Lopes
;
Marques, Marcia Ortiz Mayo
Número total de Autores: 13
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PLANTS-BASEL; v. 14, n. 22, p. 16-pg., 2025-11-18. |
| Resumo | |
This study evaluated the agronomic performance and phytochemical stability of the 'Comet' hop (Humulus lupulus L.) under contrasting photoperiod management regimes (with and without supplemental lighting) in subtropical conditions over two consecutive crop cycles (2024-2025). The experiment, conducted at the School of Agricultural Sciences (FCA/UNESP, Botucatu, Brazil), followed a split-plot factorial design with ten replications. Supplemental lighting (50 W, 6500 K LED floodlights) extended the photoperiod to 17 h during the vegetative stage. Morphometric, phenological, and phytochemical parameters were analyzed, including alpha- and beta-acid contents and essential oil composition by GC-MS and GC-FID. Supplemental lighting significantly increased plant height (590.9 cm), number of lateral branches (70.1), cone length (3.49 cm), and dry cone mass (374.6 g plant-1) while reducing the insertion height of the first cone (99.0 cm). alpha-Acid content increased from 9.35% to 11.92%, and essential oil content from 1.34% to 1.90%, while beta-acid levels showed no significant variation. Chemical analysis identified 31 compounds, predominantly beta-myrcene (65-74%) and sesquiterpenes such as (E)-caryophyllene, alpha-selinene, and beta-selinene, exhibiting remarkable compositional stability across years and treatments. Photoperiod extension delayed floral induction, promoted biomass accumulation, and increased cone yield without altering the characteristic herbaceous-resinous aromatic profile. These findings validate supplemental lighting as a decisive strategy to optimize hop production in subtropical regions, ensuring phenological regularity, higher yield, and consistent chemical quality, thereby strengthening the viability of domestic hop cultivation in Brazil. (AU) | |
| Processo FAPESP: | 17/50338-9 - Do básico ao aplicado: modernização da infraestrutura institucional para o fomento à pesquisa e à inovação do agronegócio (PDIp) |
| Beneficiário: | Sérgio Augusto Morais Carbonell |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Modernização de Institutos Estaduais de Pesquisa |
| Processo FAPESP: | 18/25812-1 - Equipamento multiusuário aprovado no auxílio 2017/50338-9: cromatógrafo gasoso (GC/MS) |
| Beneficiário: | Marcia Ortiz Mayo Marques |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |
| Processo FAPESP: | 19/27066-8 - Contribuições agronômicas ao cultivo do lúpulo: morfologia, anatomia, fenologia e fitoquímica de diferentes variedades sob manejo orgânico e convencional |
| Beneficiário: | Filipe Pereira Giardini Bonfim |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 23/12485-0 - TROPICALIZAÇÃO DO LÚPULO (Humulus lupulus L.), CANNABACEAE: SUPLEMENTAÇÃO LUMINOSA NO DESEMPENHO AGRONÔMICO, FISIOLÓGICO E FITOQUÍMICO |
| Beneficiário: | Filipe Pereira Giardini Bonfim |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |