
Mini-tunnel and season influence in clonal garden on the production of clonal seedlings for two subtropical clones: Eucalyptus saligna and Corymbia torelliana × Corymbia citriodora
Claudia Costella (1) , Maristela Machado Araujo (1), Suelen Carpenedo Aimi (1), Álvaro Luis Pasquetti Berghetti (2), Adriana Maria Griebeler (3), Marllos Santos De Lima (4), asparin Ezequiel (1), Osmarino Pires Dos Santos (4), Brígida Maria Dos Reis Teixeira Valente (5)
iForest - Biogeosciences and Forestry, Volume 18, Issue 3, Pages 154-162 (2025)
doi: https://doi.org/10.3832/ifor4460-018
Published: Jun 09, 2025 - Copyright © 2025 SISEF
Research Articles
Abstract
Improving technologies for clonal seedling production is essential due to the expansion of forestry production areas. The objective of this study was to assess the impact of managing mini-tunnels in a clonal mini-garden on the productivity and physiological quality of mini-stumps, as well as on the survival and rooting of mini-cuttings of Eucalyptus and Corymbia clones throughout the four seasons. For this purpose, the experiments were conducted in two phases: in the first phase, the clonal mini-garden phase, two clonal mini-gardens were established, one with a mini-tunnel and the other without. Each mini-garden contained mini-stumps of Eucalyptus saligna and hybrid clones of Corymbia torelliana × Corymbia citriodora. During this phase, environmental variables (temperature and relative humidity) were monitored in the cultivation environments (a mini-garden with and without a mini-tunnel), along with productivity and hydrogen peroxide concentration. In the second phase, in the rooting house, survival (%) and rooting (%) were evaluated. The use of mini-tunnels increased environmental variables near the mini-stumps throughout all four seasons. The presence of the mini-tunnel promoted an increase in mini-stump productivity for both genetic materials throughout the year and positively influenced the survival and rooting of mini-cuttings, demonstrating the effectiveness of the structure in mini-stump preconditioning, especially during seasons with lower temperatures. Therefore, the use of mini-tunnels in the clonal mini-garden during autumn and winter is recommended to increase the production of Eucalyptus saligna and Corymbia torelliana × Corymbia citriodora seedlings.
Keywords
Minicuttings, Cuttings Pre-conditioning, Vegetative Propagation, Rooting, Climatic Conditions
Authors’ Info
Authors’ address
Maristela Machado Araujo 0000-0003-3751-8754
Suelen Carpenedo Aimi 0000-0002-2502-6325
asparin Ezequiel 0000-0001-6362-2964
Department of Forest Sciences, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul (Brazil)
Department of Forest Sciences, Federal University of Paraná, Curitiba, Paraná (Brazil)
Federal Rural University of the Amazon, Capitão Poço, Pará (Brazil)
Osmarino Pires Dos Santos 0000-0003-3036-8861
CMPC - Celulose Riograndense, Guaíba, Rio Grande do Sul (Brazil)
Eldorado Brasil Celulose S.A., Três Lagoas, Mato Grosso do Sul (Brazil)
Corresponding author
Paper Info
Citation
Costella C, Araujo MM, Aimi SC, Berghetti ÁLP, Griebeler AM, De Lima MS, E, Dos Santos OP, Valente BMDRT (2025). Mini-tunnel and season influence in clonal garden on the production of clonal seedlings for two subtropical clones: Eucalyptus saligna and Corymbia torelliana × Corymbia citriodora. iForest 18: 154-162. - doi: 10.3832/ifor4460-018
Academic Editor
Pierluigi Paris
Paper history
Received: Aug 25, 2023
Accepted: Feb 12, 2025
First online: Jun 09, 2025
Publication Date: Jun 30, 2025
Publication Time: 3.90 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2025
Open Access
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