00493nam a2200169Ia 4500003000400000008004100004020001500045082001700060100001700077245006300094250001200157260004700169300001300216650003400229650004100263650001900304OSt170901s1983    xx            000 0 und d  a8127220744  a631.53bS48P  aSingh, B. D. 0aPlant Breeding : principles and methods / cby B. D. Singh  a4th ed.  a.- Ludhianab: Kalyani Publishersc, 1983.  axv,620p.  aTechnology (Applied Sciences)  aAgriculture and Related Technologies  aPlant Breeding