TY - BOOK AU - Bajaj,Y.P.S.(Yashpal P.Singh),1936- TI - Somaclonal variation in crop improvement I SN - 6354050785 PY - 1990/// CY - Berlin PB - Springer-Verlag KW - Plant propagation KW - In vitro KW - Plant breeding KW - Botany KW - Variation KW - crops KW - breeding N1 - Includes bibliographical references ER -