00289nam a2200109Ia 4500008004100000082001700041100001900058245002000077260005100097300001000148650002100158140113s9999    xx            000 0 und d  a581.1:633 L8  a"Gupta, U. S."  aCrop physiology  b"New Delhi : Oxford & IBH publishing Co, 1978"  a431p.  aPlant physiology