At UEPAE of Pelotas, RS, Brazil, in 1980, was conducted a study under greenhouse conditions. to evaluate the effects of pre-emergence herbiddes and fungidddes applied to rice seed, on seedling emergence. Seed of Bluebelle cultivar were treated with the fungicides Captan 50 SD (0,1%), Thiram 70 SD (0,14%) and PCNB 75 SD (0,15%). Treated seeds were sown in a sandy sou with 2,5% of organic matter, on which the herbicides Butachlor, Pendimethalin and Oxadiazon at the rates of 3.6, 1.5 and 1.0kg/ha, respectively, had been applied. To determine the pesticide effects the evaluation characteristics used were the speed of emergence index, the initial stand, the top part of seedling dry weight at twenty eight days after seedling and the phytotoxicity symptoms. According to the results obtained the herbicides Butachlor and Pendimethalin and the fungicides PCNB had a negative effect on the speed of emergence index. Among the herbicides, only Pendimethalin reduced the initial stand. This negative effect was more pronunced when the Pendimethalin was applied together with the PCNB fungicide. All the herbicides caused a decrease in dry matter content. However, dry matter increased by application of fungicides Captan and Thiram. The fungicide PCNB reduced the dry matter content, mainly when it was applied together with the herbicides Oxadiazon and Butachlor.