00365    a2200145   4500020001800000082001600018100001900034245003500053250001000088260004600098300002000144650002100164650001900185700001500204  a9780632041916  a631.52bSIM  aSimmonds, N.W.  aPrinciples of crop improvement  a2nd    aLondonbBlackwell Science Ltdc1999g1999  axii,412p.c26cm  aCrop Improvement  aPlant Breeding  aSmartt, J.