00298nam a2200109Ia 450000500170000000800410001708200120005810000200007024500470009026000430013730000080018020260224040947.0260224s9999||||xx |||||||||||||| ||und||  a581 MAZ  aMazumdar, B.C.  0aPhotoperiodism and vernalization in plants  aNew Delhi: Daya Publishers Housec2005  a198