00482    a2200157   4500020001500000082001800015100002300033245007800056260004000134300002100174650001600195650002600211650003300237650003100270700002300301  a8120404955  a631.5233bGEN  aChopra, V.L. eed.  aGenetic engineering and biotechnologybconcepts, methods and applications  aNew DelhibOxford & IBHc1990g1993  aviii,200p.c25cm  aAgriculture  aAgricultural genetics  aDevelopment of new varieties  aCultivation and harvesting  aNasim, Anwar eed.