Application of fulvic acid to seedlings influencing root growth and productivity of iceberg lettuce
Vol 2, Issue 1, 2019
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Abstract
Humic substances are used in agriculture as promoters of plant growth, especially of the root system. The objective of the work was to evaluate the effect of the application of different doses of fulvic acid on the growth and productivity of American lettuce, Raider Plus cultivar. The experimental design used was entirely randomized, with five treatments of fulvic acid 0, 1, 2, 4, 8 mL·L-1 and four repetitions, applied at the time of transplanting. Two experiments were conducted simultaneously: one in the greenhouse, where fresh and dry mass of the aboveground and root parts, length and volume of the roots were evaluated; and the other in the field, where, at the end of the cycle, fresh and dry mass of the aboveground parts, number of leaves, stem length and average head circumference were evaluated. The application of different doses of fulvic acid promoted the growth of lettuce plants, especially the root system. The emission of roots, with predominance, of those of smaller diameter, was found in the higher concentrations of fulvic acid. The number of leaves and the average circumference of the head expressed responses in the concentrations of fulvic acid.
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1. Costa CP, Sala FC. A evolução da alfacicultura brasileira (Portuguese) [The evolution of Brazilian lettuce]. Horticultura Brasileira 2005; 23(1): 158–159.
2. Villas Bôas RL, Passos JC, Fernandes DM, et al. Efeito de doses e tipos de compostos orgânicos na produção de alface em dois solos sob ambiente protegido (Portuguese) [Effect of doses and types of organic compounds on lettuce production in two soils under protected environment]. Horticultura Brasileira 2004; 22(1): 28–34.
3. Malavolta E, Pimentel-Gomes F. Alcarde JC. Adubos e adubações (Portuguese) [Fertilizers and fertilizing]. São Paulo: Nobel; 2002. p. 200.
4. Tesseroli Neto EA. Biofertilizantes: Caracterização química, qualidade sanitária e eficiência em diferentes concentrações na cultura da alface (Portuguese) [Biofertilizers: Chemical characterization, sanitary quality and efficiency at different concentrations in lettuce culture] [Master’s thesis]. Curitiba: Universidade Federal do Paraná; 2006. p. 52.
5. HENZ GP, Suinaga FA. Tipos de alface cultivados no Brasil (Portuguese) [Types of lettuce grown in Brazil]. Embrapa Hortaliças-Comunicado Técnico (INFOTECA-E); 2009.
6. Reghin MY, Otto RF, Olinik JR, et al. Endive (Cichorium endivia L.) yield in function of tray types and seedlings age at transplanting. Ciência e Agrotecnologia 2007; 31: 739–747.
7. Silveira EB, Rodrigues VJLB, Gomes A, et al. Pó de coco como substrato para produção de mudas de tomateiro (Portuguese) [Coconut powder as substrate for tomato seedling production]. Horticultura Brasileira 2002; 20(2): 211–216.
8. Trani PE, Novo MCSS, Cavallaro Júnior ML, et al. Produção de mudas de alface em bandejas e substratos comerciais (Portuguese) [Production of lettuce seedlings in trays and commercial substrates]. Horticultura Brasileira 2004; 22(2): 290–294.
9. MINAMI, K. Produção de mudas de alta qualidade em horticultura. São Paulo: T. A. Queiroz; 1995. p. 128.
10. Marchi ECS, Alvarenga MAR, Marchi G, et al. Organic fertilizer effects upon carbon fractions from soils cultivated with iceberg lettuce. Ciência e Agrotecnologia 2008; 32: 1760–1766.
11. Silva IR, Mendonça ES. Matéria orgânica do solo (Portuguese) [Soil organic matter]. In: Novais RF (editor). Fertilidade do solo. Viçosa, MG: Sociedade Brasileira de Ciência do Solo; 2007. p. 275–374.
12. Nardi S, Pizzeghello D, Muscolo A, et al. Physiological effects of humic substances on higher plants. Soil Biology and Biochemistry 2002; 34(11): 1527–1536.
13. Canellas LP, Zandonadi DB, Médice LO, et al. Bioatividade de substâncias húmicas: Ação sobre o metabolismo e desenvolvimento das plantas (Portuguese) [Bioactivity of humic substances: Action on plant metabolism and development]. In: Canellas LP, Santos GA (editors). Humosfera: Tratado preliminar sobre a química das substâncias húmicas. Campos dos Goytacases, Universidade Estadual do Norte Fluminense; 2005. p. 224–243.
14. Façanha AR, Façanha ALO, Olivares FL, et al. Humic acids bioactivity: Effects on root development and on the plasma membrane proton pump. Pesquisa Agropecuária Brasileira 2002; 37: 1301–1310.
15. Muscolo A, Sidari M, Attinà E, et al. Biological activity of humic substances is related to their chemical structure. Soil Science Society of America Journal 2007; 71(1): 75–85.
16. Quaggiotti S, Ruperti B, Pizzeghello D, et al. Effect of low molecular size humic substances on nitrate uptake and expression of genes involved in nitrate transport in maize (Zea mays L.). Journal of Experimental Botany 2004; 55(398): 803–813.
17. Trevisan S, Francioso O, Quaggiotti S, et al. Humic substances biological activity at the plant-soil interface: From environmental aspects to molecular factors. Plant Signaling & Behavior 2010; 5(6): 635–643.
18. Empresa Brasileira de Pesquisa Agropecuária, Centro Nacional de Pesquisa de Solos. Sistema Brasileiro de Classificação de Solos (Portuguese) [Brazilian system of soil classification]. Brasília: Embrapa Produção de Informações, Rio de Janeiro: Embrapa Solos; 2006. p. 306.
19. HORTIBRASIL. Instituto Brasileiro de Qualidade em Horticultura. Programa brasileiro para a modernização da horticultura (Portuguese) [Brazilian program for the modernization of horticulture] [Internet]. 2010. Available from: http://www.hortibrasil.org.br/classificacao/alface/alface.html
20. Silva FAS. ASSISTAT versão 7.6 beta: Assistência estatística (Portuguese) [ASSISTAT version 7.6 beta: Statistical assistance]. Campina Grande: Universidade Federal de Campina Grande, Campus de Campina Grande-PB. Centro de Tecnologia e Recursos Naturais. Departamento de Engenharia Agrícola; 2011.
21. Rosa CM, Castilhos RMV, Vahl LC, et al. Effect of humic-like substances on potassium uptake kinetics, plant growth and nutrient concentration in Phaseolus vulgaris L. Revista Brasileira de Ciência do Solo 2009; 33: 959–967.
22. Sediyama MAN, Garcia NCP, Vidigal SM, et al. Nutrients in organic composts of plant residues and swine manure. Scientia Agricola 2000; 57: 185–189.
23. Canellas LP, Olivares FL, Okorokova-Façanha AL, et al. Humic acids isolated from earthworm compost enhance root elongation, lateral root emergence, and plasma membrane H+-ATPase activity in maize roots. Plant Physiology 2002; 130(4): 1951–1957.
24. Zandonadi DB, Canellas LP, Façanha AR. Indolacetic and humic acids induce lateral root development through a concerted plasmalemma and tonoplast H+ pumps activation. Planta 2007; 225(6): 1583–1595.
25. Silva RM, Jablonski A, Siewerdt L, et al. Development of ryegrass roots as affected by humic compounds addition to a complete nutritive solution under greenhouse conditions. Revista Brasileira de Zootecnia 2000; 29: 1623–1631.
26. Rodda MRC, Canellas LP, Façanha AR, et al. Improving lettuce seedling root growth and ATP hydrolysis with humates from vermicompost. I-effect of vermicompost concentration. Revista Brasileira de Ciência do Solo 2006; 30: 649–656.
27. Rima JAH, Martim SA, Dobbss LB, et al. Citric acid addition improve humic acids action and change proteins profile from plasma membrane of maize roots. Ciência Rural 2011; 41: 614–620.
28. Nibau C, Gibbs DJ, Coates JC. Branching out in new directions: The control of root architecture by lateral root formation. New Phytologist 2008; 179(3): 595–614.
29. Aguiar NO, Canellas LP, Dobbss LB, et al. Molecular weight distribution of humic acids and root growth promotion. Revista Brasileira de Ciência do Solo 2009; 33: 1613–1623.
30. Yuri JE, Resende GM, Rodrigues Júnior JC, et al. Efeito de composto orgânico sobre a produção e características comerciais de alface americana (Portuguese) [Effect of organic compost on the production and commercial characteristics of iceberg lettuce]. Horticultura Brasileira 2004; 22(1): 127–130.
DOI: https://doi.org/10.24294/th.v2i1.1775
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