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Physiological quality of soybeans seeds treated with fungicide and coating with polymers

By Jo??o Carlos Benatto Junior

Abstract

O uso de pol??meros em sementes de soja vem sendo realizado com a finalidade de incorporar produtos fitossanit??rios, melhorar o aspecto visual da semente, promover menor risco de intoxica????o do operador e proporcionar um melhor desempenho de sementes e pl??ntulas ap??s a sua semeadura. O objetivo principal deste trabalho foi avaliar o efeito do recobrimento na qualidade de semente de soja de alta e baixa germina????o da cv. AG 7000. O revestimento foi realizado com duas marcas comerciais de pol??meros, LABORSAN ?? , e LANXESS ?? , nas doses de 2 e 3,5 mL para cada kg de semente com e sem mistura do fungicida Carbendazim + Thiram (firewalk ?? ). As avalia????es da qualidade das sementes foram realizadas por meio do teste de germina????o, germina????o em substrato de areia e envelhecimento acelerado. O uso de pol??meros na semente de soja proporciona sementes com boa apar??ncia e colora????o, podendo ser aplicado para diferenciar a semente do gr??o comercial. O fungicida e o pol??mero n??o prejudicam a qualidade fisiol??gica da semente de soja. Os resultados do pol??mero e fungicida foram superiores no teste de envelhecimento acelerado, apresentando maior percentual de germina????o em rela????o ?? testemunha.The use of polymers in soybean seeds has been accomplished with the purpose of incorporating products like insecticides, fungicides, growing substances, minor fertilizers and so on, in order to improve the visual aspect of the seed, to promote smaller operator's intoxication risk and to provide a better seeds' acting and seedlings after sowing. The main objective of this work was to evaluate the recovered seeds' effects in soybeans seed quality lots of high and low germination of the cv. AG 7000. The seed's film coating was accomplished with two commercial marks of polymers, LABORSAN ?? , and LANXESS ?? , in doses of 2 and 3,5 ml for each kg with and without mixture of the fungicide Carbendazim + Thiram (firewalk ?? ). The seeds' quality evalutions, were measured by the germination test, germination in sand and accelerated aging. The use of polymers in soybean seeds provides seeds with good appearance and coloration and can be applied to differentiate the seed from the commercial grain. The fungicide and the polymers do not affect the physiological quality of soybean seed. The results of the polymers and fungicide were superior in the test of accelerated aging, showing higher germination in relation to the check treatment

Topics: Sementes, Soja, Glycine max, Film coating, Tratamento de sementes, Pol??meros, Seeds, Glycine max, Film coating, Seed treatment, Polymers, CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
Publisher: Universidade Federal de Pelotas
Year: 2008
OAI identifier: oai:agregador.ibict.br.RI_UFPEL:oai:repositorio.ufpel.edu.br:123456789/1464
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