Main Article Content
Aims: White oats are considered one of the most important cereals in the world. Currently, fertilizers based on phosphorus and silicon are being studied as inductors of resistance in the treatment of seeds, since they have as advantages such as low costs and excellent absorption by plants. The effects of seed treatment with phosphite resistance inducers are still unknown, being necessary the study in relation to interact with the seed at the time of twinning.
Study Design: The experimental design used was completely randomized, with four replications, two commercial products based on phosphite FullTec Mais and Ultra Plus and five doses.
Place and Duration of Study: The work was conducted at the Didactic Laboratory of Seed Analysis of the Faculty of Agronomy Eliseu Maciel of the Federal University of Pelotas (UFPel), Pelotas-RS, in 2019.
Methodology: White oat seeds were used, produced in the 2018/2019 agricultural kharif and treated with commercial products based on FullTec Mais and Ultra Plus phosphites, in five doses: 0; 1.0; 2.0; 3.0; 4.5 mL for each 100 kg of seeds. The variables evaluated were first germination count (CP), germination (G), shoot length (CA), root length (CR), total length (CT), accelerated aging (EV) and total dry mass (MST). The data expressed as a percentage were subjected to analysis of variance to verify the effect of treatments. Then, the Duncan means test (P=0.5) was performed, for the discrimination between the treatment means. Statistical analyzes were performed using the R Core Team (2020).
Results: The results showed that the FullTec Mais product stimulates the physiological performance of white oat seeds for the variables first germination count (CP), germination (G) and shoot length (CA), with a dose of 2 mL of the product per 100 kg of seeds that showed the highest expression. For the Ultra Plus product at a dose of 1 mL of the product per 100 kg of seeds it is more efficient in the accelerated aging test (EV), for the other variables it did not show significant differences.
Conclusion: It is possible to use phosphite-based micronutrients in seed treatment, without causing physiological damage to the seed during the twinning process.
Accessed on: March 29, 2020.
Menten JO, Moraes MHD. Seed treatment: History, types, characteristics and benefits. ABRATES Newsletter, Londrina. 2010; 20(3):52-53.
Farias CRJ, Lucca-Filho OA, Pierobon CR, Del Ponte EM. Health quality of black oat seeds (Avena strigosa Schreb.) Produced in the state of Rio Grande do Sul, 1999/2000 harvest. Revista Brasileira de Sementes. 2002;24(1):1-4.
DOI: 10.1590 / S0101-312220020001000 01
Borin RC, Possenti JC, dos Santos Rey M, Mazaro SM, Bernardi C, Deuner C, Saburo RSS. Physiological performance and induction of resistance in corn seeds treated with phosphite fertilizers / physiological performance and induction of resistance in corn seeds treated with phosphite fertilizers with fungicides association. Brazilian Journal of Development. 2019;5(12):33321-33338.
DOI: 10.34117 / bjdv5n12-378
Durrant WE, Dong X. Systemic acquired resistance. Annual Review of Phytopathology. 2004;42:185-209.
DOI: 10.1146 / annurev.phyto.42.04080 3.140421
Henning AA. Pathology and seed treatment: general notions. Londrina PR. Embrapa Soy-Documents (INFOTECA-E). 2005;52.
Piccinin GG, Braccini AL, Dan LG. from M, Bazo GL, Lima LH da S. Influence of storage on the physiological quality of soybean seeds treated with insecticides. Ambiência, Guarapuava.PR. 2013;9(2): 289-298.
DOI: 10.5777 / ambiencia.2013.02.04
Scott PM, Barber PA, Hardy GE, STJ. Novel phosphite and nutrient application to control Phytophthora cinnamomi disease. Australasian Plant Pathol. 2015;44:431–436.
DOI: 10.1007 / s13313-015-0365-4
Meneghetti RC, Balardin RS, Corte GD, Favera DD, Debona D. Evaluation of defense activation in soybean against Phakopsora pachyrhizi under controlled conditions. Science and Agrotechnology. 2010;34(4):823-829.
DOI: 10.1590 / S1413-705420100004000-05.
Müller I. Resistance induction and treatment of soybean seeds with potassium phosphites. 117f. il. Dissertation (master in phytotechnics) - Federal Technological University of Paraná; 2015.
Brazil. Rules for seed analysis. 1st edition. Brasília: Ministry of Agriculture, Livestock and Supply. 2009:399.
Marcos Filho J. Accelerated aging test. In: Krzyzanowski FC, VIEIRA RD, França Neto JB. Seed vigor: Concepts and tests. Londrina: ABRATES. 1999;3:1-24.
Nakagawa J. Vigor tests based on seedling performance. In: Krzyzanowski FC, Vieira RD, França-Neto JB. Seed vigor: Concepts and tests. Londrina: ABRATES. 1999;2:1-21.
Cícero SM, Vieira RD. Cold test. In: Vieira RD, Carvalho NM. (Ed.). Seed vigor tests. Jaboticabal: FUNEP. 1994;151-164.
R Core Team. A: A language and environment for statistical computing. R Foundation for Statistical Computing. Vienna, Austria; 2020.
Gonçalves VP, Medina ABP, Teixeira SB, Tunes CD, Levien O, Meneghello GE. Physiological quality of wheat seeds in response to treatment with phyto-stimulant. Empos Graduate Meeting; 2019.
Espindola DLP. Seed treatment with manganese phosphite and sulfur: effects on soybeans and on the development of phytopathogens. Dissertation presented to the Federal University of Grande Dourados; 2015.
Oliveira NP. Phosphite supplied via roots and leaves on the production, nutrition of phosphorus and mitigation of glyphosate toxicity in soy. f. Dissertation (Master in Soil Sciences) - Federal University of Lavras, Lavras –MG. 2011;61.
Avelar SAG, Baudet L, Peske ST, Ludwig MP, Rigo GA, Crizel RL, Oliveira S. - Storage of soybean seeds treated with fungicide, insecticide and micronutrients and covered with liquid and powder polymers. Rural Science. 2011.41(10): 1719-1725.
DOI: 10.1590 / S0103-8478201100500-0130
Rosa KC, Meneghello GE, Queiroz ES, Villela FA. Storage of hybrid corn seeds treated with thiamethoxam. Informativo ABRATES, Patos de Minas, MG. 2012; 22(3).
Ribeiro ND, Santos OS. Use of zinc applied to seeds in plant nutrition. Rural Science. 1996;26(1):159-165.
DOI: 10.1590 / S0103-8478199600010-0030
Tavares S, Castro PRC, Ribeiro RV, Aramaki PH. Evaluation of the physiological effects of thiametoxam in the treatment of soybean seeds. Revista de Agricultura. 2008;82:47-54.
Almeida ADS, Carvalho I, Deuner C, Villela FA. Bioactivator in the physiological performance of rice seeds. Revista Brasileira de Sementes. 2011;33(3):501-510.
DOI: 10.1590 / S0101-3122201100030-0013
Hampton JG, Goolbear P. Potential versus actual seed performance can vigor testing provide na answer. Seed Science and Technology, Massachusetts. 1990;18(1): 215-228.