Location of Repository

Physiological quality of soybean seeds due to the mechanical damage

By Geliandro Anhaia RIGO

Abstract

O presente trabalho teve como objetivo avaliar a qualidade fisiol??gica de sementes de soja danificadas em diferentes n??veis, assim como o efeito do tratamento de sementes com fungicida at?? 150 dias de armazenamento. Foram utilizadas sementes de soja da cultivar Turbo. Estas sementes foram colhidas e trilhadas manualmente a fim de garantir que n??o houvesse nenhum dano mec??nico inicial. Para danifica????o das sementes utilizou-se um danificador mec??nico, teste do impacto . As sementes foram expostas individualmente sobre um contador de sementes de furo redondo, para receberem o impacto atrav??s de um peso 100 g sob diferentes alturas (A1 = 10 cm e A2 = 20 cm), somando-se tr??s n??veis de danos: sem dano, mediamente danificadas e altamente danificadas. Feito isso, as sementes foram acondicionadas em sacos de papel tratadas com fungicida Derosal Plus e armazenadas em BOD com temperatura de 22??C ?? 3 ??C, para posterior avalia????o da qualidade fisiol??gica aos 30, 60, 90, 120 e 150 dias ap??s o armazenamento. Os testes realizados foram germina????o, primeira contagem de germina????o e envelhecimento acelerado. Os resultados foram submetidos ?? an??lise de vari??ncia e compara????es de m??dia pelo teste de Scott Knott a 5% utilizando o programa estat??stico Assistat. Sementes de soja altamente danificadas reduzem em 50% o seu potencial de germina????o em 150 dias de armazenamento sob condi????es controladas de 22 ??C ?? 3 ??C e umidade relativa de 60%. O tratamento f??ngico com Derosal Plus em sementes de soja reduz o processo de deteriora????o das sementes durante o armazenamento.This study aimed to evaluate the physiological quality of soybean seeds damaged at different levels as well as the effect of seed treatment with fungicide after 150 days of storage. Used - if seeds of the cultivar Turbo. These seeds were harvested and threshed manually to ensure that there were no initial mechanical damage. Damage to seeds used a mechanical damaging, "Impact Test". Seeds were individually exposed on a counter seed round hole for receiving the impact through a 100 g weight at different heights (A1 = A2 = 10 cm and 20 cm), adding three levels of damage without damage, moderately damaged and highly damaged. Done that seeds were packaged in paper bags Derosal Plus fungicide treated and stored in BOD with temperature 22 ?? C ?? 3 ?? C, for further evaluation of vigor at 30, 60, 90, 120 and 150 days of storage. The tests were performed, germination, first count of germination and accelerated aging. Results were subjected to analysis of variance and mean comparison by Scott Knott test at 5% using the statistical program Assistat. Highly damaged soybean seeds by 50% reduces your potential germination in 150 days of storage under controlled conditions of 22 ?? C ?? 3 ?? C and relative humidity of 60%.The fungal treatment with Derosal Plus in soybean seeds reduces the process of deterioration during storage

Topics: glycine max (L.) merrill, dano mec??nico, qualidade fisiol??gica, armazenamento, lycine max (L.) Merrill, mechanical damage, quality physiological, storage, CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::PRODUCAO E BENEFICIAMENTO DE SEMENTES
Publisher: Universidade Federal de Pelotas
Year: 2013
OAI identifier: oai:agregador.ibict.br.RI_UFPEL:oai:repositorio.ufpel.edu.br:123456789/1408
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.rcaap.pt/detail.jsp... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.