00293nam a2200109Ia 4500008004100000082002000041100002200061245002700083260004200110300001000152650002100162140113s9999    xx            000 0 und d  a581.1(02) L2.6B  a" Steward, F. C."  aPlant physiology v. 6B  b"New York : Academic Press Inc, 1972"  a365p.  aPlant physiology