00288nam a2200121Ia 4500003000400000008004100004020001400045040000800059100001600067245004300083260002600126300001400152LDD181029s9999    xx            000 0 und d  a582441277  cLDD  aRoberts, J. 0aPractical plant physiologycJ. Roberts  aLondonbLongmanc1976  axii, 161p