00308nam a2200109Ia 450000500170000000800410001708200140005810000170007224500570008926000440014630000080019020260224040826.0260224s9999||||xx |||||||||||||| ||und||  a632.7 SIN  aSingh, D.P.  0aBreeding for resistance to diseases and insect pests  aBerlin: New York: Springer-Verlagc1986  a222