Emergence and initial growth of açaí palm under different light levels after seed dormancy breaking treatments
DOI:
https://doi.org/10.33448/rsd-v11i15.37515Keywords:
Euterpe oleraceae; Shading; Arecaceae.Abstract
Light availability and dormancy are two factors that interfere with germination and initial plant growth. This study aimed to evaluate the influence of different pre-germination treatments on the emergence and initial growth of Euterpe oleracea Mart. seedlings subjected to different levels of luminosity. A completely randomized design was adopted in a 4 × 3 factorial scheme with four methods of overcoming dormancy (intact seed, hot water at 60 °C, soaking for 24 h in water, and mechanical scarification with sandpaper No. 100) and three levels of luminosity (25 %, 65 %, and 100 %) with 16 repetitions per treatment. The emergence percentage, speed index, and mean time were analyzed. The initial growth was evaluated using the following variables: plant height, stem diameter, shoot dry mass, root dry mass, total dry mass, leaf area, and root mass ratio. There was an interaction between light factors and dormancy breakage for plant height, stem diameter, and leaf area. The variables root dry mass, shoot dry mass, and root mass ratio showed better results with full sun. It was concluded that shade treatments provided greater initial growth for the açaí palm with intact seeds.
References
Assis, R. M. A., Chagas, J. H., Leite, J. J. F., Santos, J. P., Bertolucci, S. K. V., & Pinto, J. E. B. P. (2022). Effect of irradiance levels on biomass production, essential oil content and anatomy of Artemisia alba Turra. Research, Society and Development, 11(13). e377111335565.
Bachmann, D, Roscher, C., & Buchmann, N. (2018). How do leaf trait values change spatially and temporally with light availability in a grassland diversity experiment. Oikos, 127(7), 935-948.
Brasil. Regras para análise de sementes. (2009). Brasília: Ministério da Agricultura, Pecuária e Abastecimento.
Cardoso, V. J. M. Dormência: estabelecimento do processo. In: Ferreira, A. G; Borghetti. 2004. Germinação: do básico ao aplicado. Rio Grande do Sul, Porto Alegre: Artmed.
Carvalho, N. M., & Nakagawa. J. (2012). Sementes: ciência, tecnologia e produção. São Paulo, Jaboticabal: FUNEP.
Conforto, E. C., & Contin, D. R. (2009). Desenvolvimento do açaizeiro de terra firme, cultivar pará, sob atenuação da radiação solar em fase de viveiro. Bragantia, 68(4), 979-983.
Dapont, E. C, Silva, J. B., & Alves, C. Z. (2016). Inicial development of açaí plants under shade gradation. Revista Brasileira de Fruticultura. 38(2), 1-9.
Dias, D. P., & Marenco, R. A. (2007). Fotossíntese e fotoinibição em mogno e aquariquara em função da luminosidade e temperatura foliar. Pesquisa Agropecuária Brasileira. 42(3), 305-311.
Gama, J. S. N., Monte, D. M. O., Alves, E. U., Bruno, R. L. A., & Braga-Júnior, J. M. (2010). Temperaturas e substratos para germinação e vigor de sementes de Euterpe oleracea Mart. Revista Ciência Agronômica. 41(4), 664-670.
Gonçalves, J. F. C., Lima, R. B. S., Fernandes, A. V., Borges, E. E. L., & Buckeridge, M. S. (2010). Physiological and biochemical characterization of the assai palm (Euterpe oleracea Mart.) during seed germination and seedling growth under aerobic and anaerobic conditions. Revista Árvore. 34(6), 1045-1053.
Gurevitch, J., Scheiner, S. M., & Fox, G. A. (2009). Ecologia Vegetal. Rio Grande do Sul, Porto Alegre: Editora Artmed.
Hodgson, J. G., Montserrat-Martí, G., Charles, M., Jones, G., Wilson, P., Shipley, B., Sharafi, M., Cerabolini, Be., Cornelissen, Jh., Band, Sr., Bogard, A., Castro-Díez, P., Guerrero-Campo, J., Palmer, C., Pérez-Rontomé, M. C., Carter, G, Hynd, A., Romo-Díez, A., De Torres Espuny, L., & Royo Pla, F. (2011). Is leaf dry mass content a better predictor of soil fertility than specific leaf area. Annals Botany. 108(7), 1337–1345.
Jorge, M. H. A., Urbanetz, C., Costa, E., & Salis, S. M. (2014). Água corrente acelera germinação de carandá. Circular Técnica Embrapa. 110, 1-4.
Kist, B. B., Carvalho, C., & Beling, R. R. (2022). Anuário Brasileiro de Horti & Fruti. Rio Grande do Sul, Santa Cruz do Sul: Gazeta Santa Cruz.
Labouriau, L. G. A. (1983). Germinação das sementes. Secretaria Geral da OEA.
Lima, J. M. E. Physiological performance of açaí seeds (Euterpe oleracea Mart.) storage with different moisture contents and treated with fungicide. (2018). Journal of Seed Science. 40(2), 135-145.
Lorenzi, H., Souza, H. M., Costa, J, T, M., Cerqueira, L. S. C., & Behr, N. (1996). Palmeiras do Brasil: nativas e exóticas. São Paulo, Nova Odessa: Editora Plantarum.
M-aguire, J. D. (1962). Speed of germination-aid in selection and evaluation for seedling emergence and vigor. Crop Science. 16(2), 176-177.
Martins, C. C, Nakagawa, J., & Bovi, M. L. A. (2009). Avaliação da qualidade fisiológica de sementes de açaí. Revista Brasileira de Fruticultura. 31(1), 231-235.
Nakasono, E. M., Costa, M. C., Futatsugi, K., & Paulilo, M. T. S. (2001). Crescimento inicial de Euterpe edulis Mart. Em diferentes regimes de luz. Revista Brasileira de Botânica. 24(2), 173-179.
Nascimento, W. M. O., & Silva, W. R. (2005). Comportamento fisiológico de sementes de açaí (Euterpe oleracea Mart.) submetidas à desidratação. Revista Brasileira de Fruticultura. 27(3), 349-351.
Nascimento, W. M. O., Cícero, S. M., & Novembre, A. D. L. C. (2010). Conservação de sementes de açaí (Euterpe oleracea Mart.). Revista Brasileira de Sementes. 32(1) 24-33.
Oliveira, M. S. P., Carvalho, J. E. U., Nascimento, W. M. O., & Müller, C. H. (2002). Cultivo do açaizeiro para produção de frutos. Circular Técnica Embrapa. (1)26, 1-18.
Pardos, M., & Calama, R. (2022). Adaptive Strategies of Seedlings of Four Mediterranean Co-Occurring Tree Species in Response to Light and Moderate Drought: A Nursery Approach. Forests. 154(13), 2-17.
Pinto, J. F. N., Reis, E. F., Netto, A. P. C., Pinto, J. F. N., Assunção, H. F., & Nunes, H. F. (2012) Efeito de diferentes tratamentos na superação da dormência de sementes da palmeira Syagrus oleracea. Becc. Cerne. 18(3), 487-493.
Pivetta, K. F. L., & Luz, P. B. (2013). Efeito da temperatura e escarificação na germinação de sementes de Euterpe oleracea Mart. (Arecaceae). Revista de Biologia e Ciências da Terra. 13(1). 83-88.
Poorter, H., Niinemets, Ü., Walter, A., Fiorani, F.m & Schurr, U. (2010) A method to construct dose–response curves for a wide range of environmental factors and plant traits by means of a meta-analysis of phenotypic data. Journal of Experimental Botany. 68(8). 2043-2055.
Reis, R. G. E., Pereira, M. S., Gonçalves, N. R., Pereira, D. S., & Bezerra, A. M. E. (2011). Emergência e qualidade de mudas de Copernicia prunifera em função da embebição das sementes e sombreamento. Revista Caatinga. 24(4). 43-49.
SAS Institute. (2001). User’s guide. Version 8.02, TS level 2MO. Cary, NC: SAS Institute Inc.
Silva, L. L., Lima-Primo, H. E., Smirdele, O. J., Chagas, E. A., & Souza, A. G. (2015). Escarificação de sementes para desenvolvimento em plântulas de açaizeiro. Revista Agro@mbiente On-line. 9(1), 72-78.
Silva, M. S. A., Yamashita, O. M., Rossi, A. A. B, Conceição, G., Carvalho, A. C., & Sá, M. E. (2020). Influence of light and temperatures on seed germination of Macroptilium lathyroides. South American Journal of Basic Education Technical and Technological. 7(1), 311-324.
Vedel-Sørensen, M., Tovaranonte, J., Bøcher, P. K., Balslev, H., & Barfod, A, S. (2013). Spatial distribution and environmental preferences of 10 economically important forest palms in western South America. Forest Ecology and Management. 307(1), 284-292.
Wyka, T. P., Rabakowski, P., Zytkowiak, R., & Oleksyn, J. (2022). Anatomical adjustment of mature leaves of sycamore maple (Acer pseudoplatanus L.) to increased irradiance. Photosyntesis Research. 152(1), 55-71.
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