00410nam a2200133Ia 4500008004100000082001800041100002100059245005600080260003800136300000800174650004100182650003400223653001900257170901s1966    xx            000 0 und d  a631.522bF92P  aFrey, Kennetb J. 0aPlant BreedingbA symposiu Held at state university  aLowabUniversity Press Amesc1966  a430  aAgriculture and related technologies  aTechnology (Applied sciences)  aPlant breeding