海量图书期刊资源,随时随地畅享阅读乐趣
Ammonium Requirement for Embryogenesis in vitroHALPERIN, WALTER; WETHERELL, DONALD F. · 1965
ReportsLaquer, Walter; Halperin, Ernst; Alexander, Yonah; Tsunoda, Jun · The Washington Quarterly · 1978
Alternative Morphogenetic Events in Cell SuspensionsWalter Halperin · American Journal of Botany · 1966
ALTERNATIVE MORPHOGENETIC EVENTS IN CELL SUSPENSIONSHalperin, Walter · American Journal of Botany · 1966
Hormonal Control of Organogenesis in Opuntia polyacantha (Cactaceae)James D. Mauseth and Walter Halperin · American Journal of Botany · 1975
The change in ulnar variance with gripFriedman, Steven L.; Palmer, Andrew K.; Short, Walter H.; Mark Levinsohn, E.; Halperin, Lawrence S. · 1993
Ultrastructural localization of acid phosphatase in cultured cells ofDaucus carotaWalter Halperin · 1969
DNA and ascomycete systematicsEriksson, Ove E. · Canadian Journal of Botany · 1995
COLONY DIFFERENTIATION IN EUDORINAGoldstein, Melvin · Canadian Journal of Botany · 1967
<i>Seimatosporium rossicum</i> anam.-sp.nov.Raj, T. R. Nag; Mel'nik, V. · Canadian Journal of Botany · 1990
Megasporogenesis and microsporogenesis in <i>Vicia faba</i>Mitchell, John P. · Canadian Journal of Botany · 1975
AEROBIOLOGICAL SAMPLING METHODS FROM AIRCRAFTKelly, C. D.; Pady, S. M.; Polunin, Nicholas · Canadian Journal of Botany · 1951
TOBACCO ETCH VIRUS IN ONTARIOStover, R. H. · Canadian Journal of Botany · 1951
OBSERVATIONS ON QUATERNARY AMMONIUM DISINFECTANTSChaplin, C. E. · Canadian Journal of Botany · 1951
Ecosystem health and integrity?Wicklum, D.; Davies, Ronald W. · Canadian Journal of Botany · 1995