FAISALABAD (September 16 2008): Punjab Seed Corporation (PSC) has started the sale of virus-free potato seed prepared through modern Tissue Culture Technology (TCT). A spokesman of the corporation said that limited quantity of Caroda, Santee, Burna and Easterx are also available in addition to red varieties of desiries, cardinal and white variety Diamante. He said that price of 50 kilogram bag has been fixed at Rs 1500, which would be provided to growers on "first come first served" basis.