00422    a2200109   4500082001700000245004300017260007000060300001700130440007200147650003300219650006000252  a631.523bREP  aReport of a working group on sunflower  aRomebInternational Board for Plant Genetic Resourcesc1992g1992  axi,7p.c30cm  aEuropean cooperrative programme for crop genetic resources networks  aDevelopment of new varieties  aProduction of propagational organisms and new varieties