?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Y+S&rft.au=Chauhan%2C+Y+S&rft.aulast=Chauhan&rft.atitle=Photoperiod+responses+of+extra-short-duration+pigeonpea+lines+developed+at+different+latitudes&rft.title=Crop+Science&rft.date=2002&rft.volume=42&rft.pages=1139-1146&rft.issue=4&rft.genre=article