00302nam a2200121Ia 4500020001800000100001500018100001700033100002100050245003300071250001300104260004800117650001500165  a9780721659446  aNatesh, s.  aChopra, V.L.  aRamachandran, s. 0aBiotechnology In Agriculture  a9TH ED.   bW. B. Saunders Company aPhiladelphiac1996  aPhysiology