https://revistas.ucr.ac.cr/index.php/rbtRevista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

Substrate, moisture, temperature and seed germination of the threatened endemic tree Eriotheca vargasii (Malvaceae)

Godofredo Mamani, Héctor Chuquillanqui, Susana Chumbiauca, Catherine Sahley, Alfonso Alonso, Reynaldo Linares-Palomino



DOI: https://doi.org/10.15517/rbt.v66i3.29810

Abstract


We studied the germination of Eriotheca vargasii (Malvaceae), a poorly known endemic Peruvian Andean tree species characteristic of the dry forests of the Torobamba river valley. We determined seed characteristics, embryo morphology, viability, and assessed the influence of substrate (natural soil and commercially prepared media), temperature (controlled at 25 ºC and at ambient temperature between 18-22 ºC), and moisture (25 % and 50 % field capacity) on seed germination. Although most seeds were ovoid in shape and contained well-developed embryos, only 46% of them were viable. Substrate moisture levels had no influence on germination capacity or rate. In contrast, temperature and substrate type showed strong effects on germination. We observed the highest proportion of germinated seeds in prepared media at both temperatures tested (> 61 %). Furthermore, substrate types also influenced germination rates, with lower values in natural soil. The strongest effect on germination rates was by temperature, enhancing the difference in responses in substrate types. The low proportion of germinated seeds in soil (< 39 %), together with external local stress factors (e.g. grazing impact by herbivores), may be the critical factors contributing to the nearly total absence of seedlings and saplings of E. vargasii in the study area despite abundant seed production.

Keywords


Andes, arid ecosystem, Bombacaceae, drought, forest restoration

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References


Aide, T. M., Zimmerman, J. K., Pascarella, J. B., Rivera, L., & Marcano-Vega, H. (2000). Forest regeneration in a chronosequence of tropical abandoned pastures: implications for restoration ecology. Restoration Ecology, 8, 328-338.

Alvarado, A., & Gonzalez, A. (2009). Caracterización morfológica de semillas de diez especies vegetales del sur de Ecuador. Universidad Técnica Particular de Loja Ecuador.

Alvarez-Aquino, C., Barradas-Sánchez, L., Ponce-González, O., & Williams-Linera, G. (2014). Soil seed bank, seed removal, and germination in a seasonally dry tropical forest in Veracruz, Mexico. Botanical Sciences. Botanical Sciences, 92, 111-121.

Baskin, C. C. (2003). Breaking physical dormancy in seeds – focussing on the lens. New Phytologist, 158, 229–232.

Baskin, C. C. and Baskin, J. M. (2001). Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination. Academic Press, San Diego.

Baskin, J. M., Baskin, C. C. and Li, X. (2000). Taxonomy, anatomy and evolution of physical dormancy in seeds. Plant Species Biology, 15, 139-152.

Beentje, H. J. (2010). The Kew plant glossary: an illustrated dictionary of plant terms. Kew: Royal Botanic Gardens.

Carrijo, C., Cristo Martins, R. C., Soares Martins, I., Tavares Landahl, D., Martins de Mesquita Matos, J., & Rodrigues Nakano, T. Y. (2009). Estabelecimento de Eriotheca pubescens (Bombacaceae) por meio de semeadura direta e de mudas em cascalheira. Cerne, 15, 366-371.

Carvalho-Sobrinho, J. G. de. (2013). A new species of Eriotheca (Malvaceae: Bombacoideae) from Espírito Santo, eastern Brazil. Phytotaxa, 108, 49-53.

Castro-Marín, G., Tigabu, M., González-Rivas, B., & Oden, P. C. (2011). Germination requirements and seedling establishment of four dry forest species from Nicaragua. Tropical Ecology, 52, 1-11.

Ceccon, E., Huante, P., & Rincón, E. (2006). Abiotic factors influencing tropical dry forests regeneration. Brazilian Archives of Biology and Technology, 49, 305-312.

Dalling, J. W. (2002). Ecología de semillas. In M. Guariguata & G. Kattan (Eds.), Ecologia y conservacion de Bosques Neotropicales (pp. 345-375). Cartago: Libro Universitario Regional.

Delouche, J. C., Still, T. W., Rapset, M., & Lienhard, M. (1962). The tetrazolium test for seed viability. Mississippi State University Agricultural Experiment Station Technical Bulletin, 51, 1-63.

Banda-R, K., Delgado-Salinas, A., Dexter, K. G., Linares-Palomino, R., Oliveira-Filho, A., Prado, D., Pullan, M., Quintana, C., Riina, R., Rodriguez M., G. M., Weintritt, J., Acevedo-Rodriguez, P., Adarve, J., Alvarez, E., Aranguren B., A., Arteaga, J. C., Aymard, G., Castano, A., Ceballos-Mago, N., Cogollo, A., Cuadros, H., Delgado, F., Devia, W., Duenas, H., Fajardo, L., Fernandez, A., Fernandez, M. A., Franklin, J., Freid, E. H., Galetti, L. A., Gonto, R., Gonzalez-M., R., Graveson, R., Helmer, E. H., Idarraga, A., Lopez, R., Marcano-Vega, H., Martinez, O. G., Maturo, H. M., McDonald, M., McLaren, K., Melo, O., Mijares, F., Mogni, V., Molina, D., Moreno, N. d. P., Nassar, J. M., Neves, D. M., Oakley, L. J., Oatham, M., Olvera-Luna, A. R., Pezzini, F. F., Dominguez, O. J. R., Rios, M. E., Rivera, O., Rodriguez, N., Rojas, A., Sarkinen, T., Sanchez, R., Smith, M., Vargas, C., Villanueva, B., Pennington, R. T. (2016). Plant diversity patterns in neotropical dry forests and their conservation implications. Science, 353, 1383-1387.

Duarte, M. C., & Esteves, G. L. (2012). Nomenclatural Notes on Eriotheca (Bombacoideae, Malvaceae). Novon, 22, 152-154.

Fischer, E. A. (1997). The role of plumes in Eriotheca pentaphylla (Bombacaceae) seed survival in south-eastern Brazil. Journal of Tropical Ecology, 13, 133-138.

Fleming, T. H., Williams, C. F., Bonaccorso, F. J., & Herbst, L. H. (1985). Phenology, seed dispersal, and colonization in Muntingia calabura, a neotropical pioneer tree. American Journal of Botany, 72, 383-391.

Flores, E. M., & Rivera, D. I. (1985). Germinación y desarrollo de la plántula de Gliricidia sepium (Jacq.) Steud. (Papiplionaceae). Revista de Biología Tropical, 33, 157-161.

García-Núñez, C., & Azócar, A. (2004). Ecología de la regeneración de árboles de la sabana. Ecotropicos, 17, 1-24.

Gerhardt, K. (1993). Tree seedling development in tropical dry abandoned pasture and secondary forest in Costa Rica. Journal of Vegetation Science, 4, 95-102.

Harms, K. E., & Paine, C. E. T. (2003). Regeneración de árboles tropicales e implicaciones para el manejo de bosques naturales. Ecosistemas, 12, 15-30.

International Seed Testing Association. (2012). International rules for seed testing. (International Seed Testing Association, Ed.). Bassersdorf.

Janzen, D. H. (1988). Tropical dry forests: the most endangered major ecosystem. In E. O. Wilson (Ed.), Biodiversity (pp. 130-137). Washington, D. C.: National Academic Press.

Kleinbaum D. G., & Klein, M. (2012). Survival analysis: a self-learning text. Springer Science & Bussines Media.

Khurana, E. K. T. A., & Singh, J. S. (2001). Ecology of seed and seedling growth for conservation and restoration of tropical dry forest: a review. Environmental Conservation, 28, 39-52.

León, B. (2006). Bombacaceae endémicas del Perú. Revista Peruana de Biología, 13, 175-176.

Linares-Palomino, R. (2006). Phytogeography of Seasonally Dry Tropical Forests in Peru. In R. T. Pennington, G. P. Lewis, & J. A. Ratte (Eds.), Neotropical Savannas and Seasonally Dry Forests (pp. 257-279). Boca Raton: CRC Press.

Linares-Palomino, R. (2013). Plant diversity, composition and structure of the seasonally dry forest in Torobamba, an inter-Andean valley in Ayacucho, southern Peru. Setting the baseline for longterm ecological monitoring and conservation of the endemic tree Eriotheca vargasii. In A. Alonso, F. Dallmeier, & G. P. Servat (Eds.), Monitoring Biodiversity: lessons from a TransAndean Megaproject (pp. 41-51). Washington, DC: Smithsonian Institution Scholarly Press.

Linares-Palomino, R., & Ponce-Alvarez, S. I. (2009). Structural patterns and floristics of a seasonally dry forest in Reserva Ecológica Chaparri, Lambayeque, Peru. Tropical Ecology, 50, 305-314.

Luz, G. R., & Nunes, Y. R. F. (2013). Seed germination of arboreal shrub species with different dispersal mechanisms in a Brazilian tropical dry forest. In A. Sanchez-Azofeifa, J. S. Powers, G. W. Fernandes, & M. Quesada (Eds.), Tropical Dry Forests in the Americas: Ecology, Conservation, and Management (pp. 286-303). Boca Raton, FL: CRC Press.

Maharachchikumbura, S. S., Hyde, K. D., Groenewald, J. Z., Xu, J., & Crous, P. W. (2014). Pestalotiopsis revisited. Studies in Mycology, 79, 121-186.

McNair, J. N., A. Sunkara, & D. Frobish (2012). How to analyse seed germination data using statistical time-to-event analysis: non-parametric and semi-parametric methods. Seed Science Research, 22, 77-95.

Melo, P. A. F. R., Cavalcanti, M. I. P., Alves, E. U., Martins, C. C., & de Araújo, L. R. (2017). Substrates and temperatures in the germination of Eriotheca gracilipes seeds. Revista Ciência Agronômica, 48, 303-309.

Mercival, F. R., Lunardi, V. O., Guimarães, P. R., & Galetti, M. (2008). Factors affecting seed predation of Eriotheca gracilipes (Bombacaceae) by parakeets in a cerrado fragment. Acta Oecologica, 33, 240-245.

Moreira, A. G., & Klink, C. A. (2000). Biomass allocation and growth of tree seedlings from two contrasting Brazilian savannas. Ecotropicos, 13, 43-51.

Moreno, M. E. (1996). Análisis físico y biológico de semillas agrícolas. México, D.F.: Instituto de Biología, Universidad Nacional Autónoma de México.

Mostacedo, B., & Fredericksen, T. (2001). Regeneración y Silvicultura de Bosques Tropicales en Bolivia. Santa Cruz: Proyecto de Manejo Forestal Sostenible (BOLFOR), Editora El País.

Murali, K. S. (1997). Patterns of seed size, germination and seed viability of tropical tree species in Southern India. Biotropica, 29, 271-279.

Murdoch, A. J., & Ellis, R. H. (2000). Dormancy, viability and longevity. In M. Fenner (Ed.), Seeds: the ecology of regeneration in plant communities (pp. 183-207). CABI Publishing.

Newton, A. C., Oldfield, S., Rivers, M., Mark, J., Schatz, G., Tejedor Garavito, N., Cantarello, E., Golicher, D., Cayuela, L., & Miles, L. (2015). Towards a Global Tree Assessment. Oryx, 49, 410-415.

Poorter, L., & Markesteijn, L. (2008). Seedling traits determine drought tolerance of tropical tree species. Biotropica, 40, 321-331.

R Core Team (2016). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL https://www.R-project.org/.

Reynel, C., Pennington, T. D., Pennington, R. T., Marcelo, J., & Daza, A. (2003). Árboles útiles del Ande Peruano. Lima: Tarea Grfica Educativa.

Robyns, A. (1963). Essai de monographie du genre Bombax s.l. (Bombacaceae). Bulletin Du Jardin Botanique de l’État à Bruxelles, 33, 1-316.

Román, F., De Sautu, R., Deago, A., Hall, J., & Jefferson, S. (2012). Guía para la propagación de 120 especies de árboles nativos de Panamá y el Neotrópico. Environmental Leadership and Training Initiative - ELTI. Yale School of Forestry & Environmental Studies, New Haven.

Salazar, A., Goldstein, G., Franco, A. C., & Miralles-Wilhelm, F. (2011). Seed limitation of woody plants in Neotropical savannas. Plant Ecology, 213, 273-287.

Sánchez Sánchez, O., & Hernández Zepeda, C. (2004). Estudio morfológico de plántulas de la familia Bombacaceae en Quintana Roo, México. Foresta Veracruzana, 6, 1-6.

Sánchez-Azofeifa, G. A., & Portillo-Quintero, C. (2011). Extent and drivers of change of neotropical seasonally dry tropical forests. In R. Dirzo, H. S. Young, H. A. Mooney, & G. Ceballos (Eds.), Seasonally Tropical Dry Forests: Ecology and Conservation (pp. 45-58). Island Press.

Servicio Nacional de Meteorología e Hidrología. (2012). Caracterización climática de las regiones Apurímac y Cusco. Lima.

Signorell, A.et mult. al. (2016). DescTools: Tools for descriptive statistics. R package version 0.99.21. https://cran.r-project.org/package=DescTools

Soriano, D., Huante, P., Gamboa-deBuen, A., & Orozco-Segovia, A. (2014). Effects of burial and storage on germination and seed reserves of 18 tree species in a tropical deciduous forest in Mexico. Oecologia, 174, 33-44.

Therneau, T. (2015). A package for survival analysis in S. Version 2.38, URL: https://CRAN.R-project.org/package=survival.

Vargas, C. (1949). La flora xerofítica del Apurímac medio. Lilloa, 20, 215-236.

Vieira, D. L. M., Lima, V. V. de, Sevilha, A. C., & Scariot, A. (2008). Consequences of dry-season seed dispersal on seedling establishment of dry forest trees: Should we store seeds until the rains? Forest Ecology and Management, 256, 471-481.

Vieira, D. L. M., & Scariot, A. (2006). Principles of Natural Regeneration of Tropical Dry Forests for Restoration. Restoration Ecology, 14, 11-20.


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