00538     2200193   4500001002100000005001500021035002000036008004100056245008900097100001100186260002900197300002700226084001400253082000800267650001700275650001700292650001700309990001800326INLIS00000000000109220260706090528  a0010-1021001092260706                           0      1 aSymposium on : Potential Productivity of Field Crops Under Differet Environmets /c-  a#NAME?  aLas Banas :bIRRI,c1983  a526 p. : ill. ;c29 cm  a633 #NA s  a633 4aPRODUCTIVITY 4aENVIRONMENTS 4aFIELD CROPS.  a12/BPT-C/1997