00486nam a2200157Ia 4500003000400000005001700004008004100021082001400062100002700076245003100103260003300134300001500167490005900182650004800241700003900289OSt20150428151905.0140224s9999    xx            000 0 und d  a631.52 H2  aHayes, Herbert Kendall  aMethods of plant breeding.  aNew YorkbMc Graw-Hillc1942  avii, 432p.  aMc Graw-Hill Publications in the Agricultural Sciences  aPlant-breeding,Crop yields-breeding methods  aImmer, Forrest, Rhinehart, jt.auth