02050naa a2200193 a 450000100080000000500110000800800410001910000190006024500900007926000090016952014350017865000160161365300440162965300340167365300290170765300440173670000200178077300560180014175901993-07-01       1982    bl ---       0--  u    #d1 aDHINGRA, O. D.  aInfusion of fungicides into soybean seeds with intact seed coats by organic solvents.  c1982  aBenomyl, thiophanate-methyl, PCNB and chlorothalonil penetrated the seed coats of intact soybean seeds soaked in fungicide solvent mixtures of dichloromethane, trichloromethane and carbontetrachloride, respectively, when soaked for periods of 30 minutes to 24 hours. Acetone aided the penetration of benomyl and thiophanate-methyl only into the seedeoat with no increase in fungicide concentration with increased immersion time. No fungicide penetrated, using any of the solvents, into the cotyledons of seeds with intact seedcoats. Conversely, benomyl and thiophanate-methyl penetrated the cotyledons of seeds with broken seedcoats immersed in fungicide-solvent mixtures and the concentration of each fungicide increased with increased immersion time. None of the solvents showed toxic effects on the seeds immersed for up to 24 hours. Fungicides applied to diseased seeds in organic solvents or as dusts significantly increased seedling emergence over the nontreated control when the fungicide was not removed from the seed surface. Emergence was similar to the nontreated control when the fungicide was removed from seeds dusted with any of the fungicides and from those treated with chlorothalonil or PCNB in acetone. The emergence of seeds treated with each of the fungicides in the solvents or with benomyl of thiophanate-methyl in acetone was higher than nontreated seeds, when fungicides were washed from the seed surface.  aGlycine Max  aAcetona - introducao - fungicida - soja  aSoja - fungicida - penetracao  aSoja - fungos - controle  aSolventes organicos - soja - tratamento1 aMUCHOVEJ, J. J.  tSeed Science and Technologygv.10, p.109-117, 1982.