01205cam a2200325Ia 4500007405471MiAaHDL20180514000000.0m d cr bn ---auaua890213s1978 coua b f000 0 eng dsdr-srlf2823486sdr-umn00119726107-AJX-8036(OCoLC)19184183CDFCDFRQFn-ust--A 13.88:RM-50Rietveld, W. J.Forecasting seed crops and determining cone ripeness in southwestern ponderosa pine /W.J. Rietveld.[Fort Collins, Colo.] :Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture,1978.12 p. :ill. ;23 cm.General technical report RM ;50"January 1978."Bibliography: p. 11-12.Mode of access: Internet.Ponderosa pineSouthwestern StatesSeeds.Forest regenerationSouthwestern States.Pine conesSamplingSouthwestern States.Ponderosa pineSouthwestern States.Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)00740547120170831153334.020180514000000.020180515090536.02026-05-19T18:15:23Z2026-05-19T17:30:03ZSDR-SRLFEX LIBRIS - VOYAGERprepare.pl-004-007BKsdr-srlf2823486uc1SDRSRLFuc1.aa0001538222UC2823486UCSRLF20260519googleuc1.aa00015382221978pdbibUS fed docUMNUMN20251216googleumn.31951d02977991e1978pdbibUS fed doc