00385nam a2200133Ia 4500008004100000082002200041100002000063245006100083260004200144300001000186600001900196600001900215650001700234140113s9999    xx            000 0 und d  a581.143:58.056 L5  a" Downs, R. J."  aEnvironment and the experimental control of plant growth  b"New York : Academic Press Inc, 1975"  a145p.  a"Hellmers, H."  a"Hellmers, H."  aPlant growth