The effect of hydrogel on the survival and growth of native species of the Amazon

Authors

DOI:

https://doi.org/10.20873/jbb.uft.cemaf.v14n2.21327

Keywords:

hydrogel, water stress, native species, forest restoration, Amazon

Abstract

The application of hydrogel has been a strategy used to mitigate water stress in seedlings planted in degraded areas. This study evaluated the influence of hydrogel on the survival and growth of five native Amazonian species (Euterpe oleracea, Carapa guianensis, Dipteryx odorata, Theobroma grandiflorum, and Bactris gasipaes) in agroforestry systems without controlled irrigation. The experiment was conducted in the municipality of Porto Velho, Rondônia, where plots with and without hydrogel were compared in terms of seedling survival and growth over 187 and 235 daysafter planting. The results showed that pupunha (55.92%) and cumaru (36.49%) had the highest survival rates, while açaí (1.32%), cupuaçu (1.74%), and andiroba (7.89%) exhibited significantly lower values. Statistical analysis did not indicate a significant effect of hydrogel on the survival of the tested species. Regarding height and diameter growth, only cumaru showed a statistically significant increase, suggesting greater adaptation to the experimental conditions. The findings indicate that hydrogel, under the evaluated conditions, was not sufficient to mitigate water stress in seedlings, especially given the severe drought observed during the experimental period. Therefore, complementary strategies, such as selecting more resistant species and implementing proper soil management, are essential for optimizing forest restoration and reducing irrigation costs in degraded areas of the Amazon.

Author Biographies

Susan Aragón Carrasco, Instituto Nacional de Pesquisas da Amazônia

He holds a PhD in Environmental Geography from Clark University (2012), a Master's degree in Tropical Ecology from the Universidad de Puerto Rico Recinto de Río Piedras (2002) and a degree in Ecology from the Universidad San Antonio Abad del Cusco (1995). Currently at the Center for Research Support in Rondônia (NAPRO) of INPA. She worked as an Associate Researcher at INTE-PUCP. She was a PNPD/CAPES postdoctoral fellow in the Graduate Program in Natural Resources (PPGRNA) at the University of Western Pará (UFOPA). He did postdoctoral work at the Center for Integrated Studies of Amazonian Biodiversity (CENBAM) at the National Institute for Amazonian Research (INPA). She researches mainly on the following topics: environmental geography, landscape ecology, agroforestry systems, remote sensing, geographic information systems, historical ecology, ethnobotany, focusing mainly on agrobiodiversity and conservation of rural landscapes.

Raimundo Cajueiro Leandro, Instituto Nacional de Pesquisas da Amazônia-INPA, Núcleo de Apoio à Pesquisa em Rondônia (NUPRO)

Graduated in Geography from the Federal University of Rondônia (2003), Master in Agriculture in the Humid Tropics from the National Institute for Amazonian Research (2007) and PhD in Biological Sciences (Botany) from the National Institute for Amazonian Research (2012). At INPA since 1979, he has experience in the area of agricultural sciences with an emphasis on Sustainable Regional Development, working mainly on the following topics: Agroforestry Systems, Family Farming, Oilseed Plants, Biodiesel, Plant Science of Regional Species and Use of Organic Waste in Agriculture.

Izabela De Lima Feitosa, Instituto Nacional de Pesquisas da Amazônia-INPA, Núcleo de Apoio à Pesquisa em Rondônia (NUPRO)

Master in Environmental Sciences from the Federal University of Rondônia (2017) and Bachelor in Forest Engineering from the Federal University of Amazonas (2009). She works at the Rondônia Research Support Center (NAPRO) of the National Institute for Amazonian Research (INPA) in rural extension actions in the production of native fruit seedlings, agroecological management and implementation of agroforestry systems (SAFs) aimed at recovering degraded areas for family farming in Rondônia and southern Amazonas. He has experience with research in the areas of Geostatistics applied to soil assessment and ICLF and ICL systems, Geoprocessing and Remote Sensing focused on hot spots and deforestation of protected areas in the Amazon.

Gean Carla Da Silva Sganderla, Universidade Federal de Rondônia

Professor in the Biology Department at the Federal University of Rondônia - UNIR. PhD in Education from the State University of Maringá. She has a degree in Biological Sciences from the Federal University of Rondônia - UNIR (2004), a specialization in Higher Education Methodology and Curricular Innovations from the Faculty of Rondônia - FARO (2005), and a Master's degree in Regional Development and Environment from the Federal University of Rondônia - UNIR (2008). She has carried out consulting work in the area of ​​Regional Development in environmental aspects (fauna surveys, surveys of production of native species, etc.). She has worked in higher education since 2008. She has experience in the area of ​​Science Education and Regional Development. She worked as Institutional Coordinator of the Institutional Program for Teaching Initiation Scholarships (PIBID) at the Federal University of Rondônia between 2014 and 2017; She worked as coordinator of the Structuring Teaching Nucleus (NDE) of the Bachelor's Degree in Biological Sciences at UNIR between 2016 and 2024. Currently, she coordinates the Greenhouse at the Federal University of Rondônia - UNIR, with the development of an Educational Nursery, a space for the development of studies in plant biology and environmental education. Lato sensu specialization in ECOLOGY (2024), latu sensu specialization in BOTANY (2024).

 

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Published

2026-05-30

How to Cite

Evelyn Furtado Ferreira, J., Aragón Carrasco, S., Cajueiro Leandro, R., De Lima Feitosa, I., & Da Silva Sganderla, G. C. (2026). The effect of hydrogel on the survival and growth of native species of the Amazon. Journal of Biotechnology and Biodiversity, 14(2), a3. https://doi.org/10.20873/jbb.uft.cemaf.v14n2.21327

Issue

Vol. 14 No. 2 (2026): Journal of Biotechnology and Biodiversity

Section

Agrarian Sciences

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Copyright (c) 2026 Jamile Evelyn Furtado Ferreira, Susan Aragón Carrasco, Raimundo Cajueiro Leandro, Izabela De Lima Feitosa, Gean Carla Da Silva Sganderla

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