?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=S+D&rft.au=Singh%2C+S+D&rft.aulast=Singh&rft.date=1990&rft.title=Production+of+Disease-free+Seed+for+the+Management+of+Downy+Mildew+(Sclerospora+graminicola)+in+Pearl+Millet&rft.genre=proceeding