00410nam a2200145Ia 4500008004100000020001600041082001600057100007000073245001600143260003900159300000800198650002300206650001800229653001700247170901s1977    xx            000 0 und d  a012435050 X  a581.5bS99P  aSymposium on Environmental Effects on Crop Physiology, April 1975 0aProceedings  aLondonbAcademic Press, Inc.c1977  a388  aBotanical sciences  aPure Sciences  aPlant ecolgy