00291nam a2200109Ia 4500008004100000082001900041100002200060245002600082260004200108300001000150650002100160140113s9999    xx            000 0 und d  a581.1(02) J9.2  a" Steward, F. C."  aPlant physiology v. 2  b"New York : Academic Press Inc, 1959"  a758p.  aPlant physiology