00417nam a2200145Ia 4500008004100000020001500041082001800056100002200074245003300096260004000129300000800169650004100177650003400218653001900252170901s1999    xx            000 0 und d  a0471023094  a631.522bA38P  aAllard, Robert W. 0aPrinciples of Plant Breeding  aNew YorkbJohn Wiley and Sonsc1999  a254  aAgriculture and related technologies  aTechnology (Applied sciences)  aPlant breeding