002940000a22001210004500060000800000082001500008100001600023245003300039260003500072260001000107300000800117650004700125  a100  a631.53 ALL  aAllard, R W  aPrinciples of plant breeding  aNewYork, John Wiley & Sons INC  c11932  a473  aplant breeding/ Polyploidy- Plant breeding