00583 a2200157 4500020001500000082001700015245005500032260007900087300002000166440005000186650004100236650003300277650006000310650003100370650002400401 a9251023743 a631.523bBRE aBreeding for durable resistance in perennial crops aRomebFood and Agriculture Organization of the United Nationsc1986g1986 a[v],130p.c21cm aFAO plant production and protection paper 70 aAgriculture and related technologies aDevelopment of new varieties aProduction of propagational organisms and new varieties acultivation and harvesting aSpecific techniques