?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=N&rft.au=Seetharama%2C+N&rft.aulast=Seetharama&rft.date=1990&rft.title=Assessment+of+Genotypic+Differences+in+Sorghum+Root+Characteristics+&rft.genre=proceeding