Qinghai Academy of Agricultural SciencesWenbing DingJianqi WangRenchang FengYanzing FengQinhua Feng2007-11-132006-10-182007-11-131983http://hdl.handle.net/10625/31182Text1 digital file (186 p. : ill.)Application/pdfzhCROPSPLANTSCROP YIELDPLANT BREEDINGCHINAWHEATBARLEYBEANSPOTATOESQinghai province crop varieties [Chinese language]Working Paper