?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=H+C&rft.au=Sharma%2C+H+C&rft.aulast=Sharma&rft.atitle=Applications+of+biotechnology+for+crop+improvement%3A+prospects+and+constraints&rft.title=Plant+Science&rft.date=2002&rft.volume=163&rft.pages=381-395&rft.issue=3&rft.genre=article