uncorrect encoding

I'm have a rails project. I'm make following: script/generate scaffold
product title:string description:text image_url:string as in book(Agile
Web development with Rails) and rake db:migrate. When I'm create a new
product, post show as '???'. In file database.yml section encoding is
utf8, but in phpmyadmin encoding: latin1_swedish_ci. How to make a
migration encoding was in utf8?