TY - GEN AU - Albrechtsen, S.E TI - Testing methods for seed-transmitted viruses: principles and protocols SN - 0851990169 U1 - 632.8 PY - 2006/// CY - UK PB - CABI KW - Agriculture KW - Plant diseases KW - Plant infection KW - Seed pathology KW - Seed testing KW - virus diseases ER -