Morphology and germination of Acmella oleracea L. R. Jansen under different temperatures and photoperiods

Erivanessa Costa Sousa Sarmento, Kleane Targino Oliveira Pereira, Fernando Sarmento de Oliveira, Caio César Pereira Leal, Salvador Barros Torres, Alek Sandro Dutra

Resumo


The objective was to evaluate the physical characteristics and physiological behavior of A. oleracea seeds during imbibition and germination, under different temperatures and photoperiods, as well as to determine the duration of the germination test. For this, biometric parameters (length, width and thickness) were measured in 100 seeds and thousand-seed weight was determined. In addition, the external structures of seeds and seedlings were described and the imbibition curve was monitored. Subsequently, the germination test was conducted at temperatures of 20, 25, 30, 35, 20-30 and 25-35 ºC, under constant and alternating light and dark photoperiods (12 h), arranged in 6 x 3 factorial scheme, with four replicates of 50 seeds. Seeds were sown in transparent plastic boxes with blotting paper as substrate, germinated in Biochemical Oxygen Demand (B.O.D) incubator, and evaluated for six days. The following variables were analyzed: germination, germination speed index, seedling length and seedling dry mass. The imbibition pattern test was conducted at 25 ºC with 4 replicates of 100 seeds, evaluated until 50% root protrusion occurred. A. oleracea seeds exhibit uniform physical characteristics and the three-phase model as a water absorption pattern. Constant temperatures of 25 and 30 °C and alternating temperatures of 20-30 °C, regardless of the photoperiod, led to higher germination values. For A. oleracea, the germination test evaluations can be performed on the fourth and sixth day after sowing, as first and last counts, respectively.


Palavras-chave


Asteraceae; Jambu; Imbibition; Seed morphology; Seed analysis

Texto completo:

PDF

Referências


ARAGÃO, V. P. M. et al. Free amino acids, polyamines, soluble sugars and proteins during seed germination and early seedling growth of Cedrela fissilis Vellozo (Meliaceae), an endangered hardwood species from the Atlantic Forest in Brazil. Theoretical and Experimental Plant Physiology, v. 27, n. 2, p. 157-169, 2015.

BELMEHDI, O. et al. Effect of light, temperature, salt stress and pH on seed germination of medicinal plant Origanum elongatum (Bonnet) Emb. & Maire. Biocatalysis and Agricultural Biotechnology, v. 16, n. 1, p. 126-131, 2018.

BEWLEY, J. D.; BRADFORD, K.; HILHORST, H. Seeds: physiology of development, germination and dormancy. 3. ed. Nova York: Springer, 2013. 392 p.

BEZERRA, F. T. C. et al. Biometria de frutos e sementes e tratamentos pré-germinativos em Cassia fistula L. (Fabaceae-Caesalpinioideae). Semina: Ciências Agrárias, v. 4, n. 35, p. 2273-2286, 2014.

BRASIL. Ministério da Agricultura, Pecuária e Abastecimento. Secretaria de Defesa Agropecuária. Regras para análise de sementes. Brasília: MAPA/ACS, 2009. 395 p.

CARVALHO, N. M.; NAKAGAWA, J. Sementes: ciência, tecnologia e produção. 5. ed. Jaboticabal: FUNEP, 2012. 590 p.

COLOMBO, R. C. et al. Biometric description of fruits and seeds, germination and imbibition pattern of desert rose [Adenium obesum (Forssk.), Roem. & Schult.]. Journal of Seed Science, v. 37, n. 4, p. 206-213, 2015.

DIAS, E. F. et al. Interactions between temperature, light and chemical promoters trigger seed germination of the rare Azorean lettuce, Lactuca watsoniana (Asteraceae). Seed Science and Technology, v. 43, n. 2, p. 133-144, 2015.

FERREIRA, D. F. Sisvar: a computer statistical analysis system. Ciência e Agrotecnologia, v. 35, n. 6, p. 1039-1042, 2011.

GOMMERS, C. M. M.; MONTE, E. Seedling establishment: a dimmer switch-regulated process between dark and light signaling. Plant Physiology, v. 176, n. 2, p. 1061-1074, 2017.

GOUVÊA, S. M. et al. Effects of paracress (Acmella oleracea) extracts on the aphids Myzus persicae and Lipaphis erysimi and two natural enemies. Industrial Crops and Products, v. 128, n. 1, p. 399-404, 2019.

HIND, N.; BIGGS, N. Plate 460. Acmella oleracea Compositae. Curtis’s Botanical Magazine, v. 20, n. 1, p. 31-39, 2003.

HOMMA, A. K. O. et al. Etnocultivo do jambu para abastecimento da cidade de Belém, estado do Pará. Amazônia: Ciência & Desenvolvimento, v. 6, n. 12, p. 125-141, 2011.

MAGUIRE, J. Speed of germination-aid in selection and evaluation for seedling emergence and vigor. Crop Science, v. 2, n. 1, p. 176-177, 1962.

MAHMOOD, A. H. et al. Influence of various environmental factors on seed germination and seedling emergence of a noxious environmental weed: green galenia (Galenia pubescens). Weed Science, v. 64, n. 3, p. 486-494, 2016.

MARCOS-FILHO, J. Fisiologia de sementes de plantas cultivadas. Londrina: ABRATES, 2015. 660 p.

MELLO, J. I. O.; BARBEDO, C. J. Temperatura, luz e substrato para germinação de sementes de pau-brasil (Caesalpinia echinata Lam., Leguminosae - Caesalpinioideae). Revista Árvore, v. 31, n. 4, p. 645-655, 2007.

MOTSA, M. M. et al. Effect of light and temperature on seed germination of selected African leafy vegetables. South African Journal of Botany, v. 99, n. 1, p. 29-35, 2015.

NOGUEIRA, F. C. B. et al. Piptadenia stipulacea (Benth.) Ducke Seed germination in response to temperature, light and water stress. American Journal of Plant Sciences, v. 5, n. 26, p. 3796-3904, 2014.

OLIVEIRA, A. B.; BOSCO, M. R. O. Biometria, determinação da curva de absorção de água em sementes e emergência inicial de plântulas de Corpenicia hospita Martius. Revista Brasileira de Agroecologia, v. 8, n. 1, p. 66-74, 2013.

OLIVEIRA, O. M. A. S.; INNECCO, R. Germinação de sementes de jambu (Acmella oleracea - Asteraceae) sob influência de fotoperíodo e temperatura. Revista Eletrônica de Biologia, v. 5, n. 3, p. 105-118, 2012.

ORRÚ, M. et al. Morphological characterisation of Vitis vinifera L. seeds by image analysis and comparison with archaeological remains. Vegetation History and Archaeobotany, v. 22, n. 3, p. 231-242, 2012.

PAIVA, E. P. D. et al. Light regime and temperature on seed germination in Salvia hispanica L. Acta Scientiarum. Agronomy, v. 38, n. 4, p. 513-519, 2016.

PEREIRA, S. A.; FERREIRA, S. A. N. Fruit and seed biometry and seedling morphology of Parkia discolor (Spruce ex Benth.). Revista Árvore, v. 41, n. 2, p. 1-8, 2017.

SILVA, L. M. M.; RODRIGUES, T. J. D.; AGUIAR, I. B. Efeito da luz da temperatura na germinação de sementes de aroeira (Myracrodruon urundeuva Allemão). Revista Árvore, v. 26, n. 6, p. 691-697, 2002.

SOUZA, R. P.; PEREIRA, M. F. D. A. Interação de luz, GA3 e estratificação na germinação de sementes de Impatiens wallerana. Revista Brasileira de Fisiologia Vegetal, v. 4, n. 1, p. 21-25, 1992.

STEFANELLO, R.; VIANA, B. B.; NEVES, L. A. S. Germination and vigor of linseed seeds under different conditions of light, temperature and water stress. Semina: Ciências Agrárias, v. 38, n. 3, p. 1161-1168, 2017.

TAIZ, L. et al. Fisiologia e desenvolvimento vegetal. 6. ed. Porto Alegre: Artmed, 2017. 888 p.

ZUCARELI, V.; HENRIQUE, L. A. V.; ONO, E. O. Influence of light and temperature on the germination of Passiflora incarnata L. seeds. Journal of Seed Science, v. 37, n. 2, p. 162-167, 2015.




Revista Ciência Agronômica ISSN 1806-6690 (online) 0045-6888 (impresso), Site: www.ccarevista.ufc.br, e-mail: ccarev@ufc.br - Fone: (85) 3366.9702 - Expediente: 2ª a 6ª feira - de 7 às 17h.