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pro vyhledávání: '"J. T. Lawrence"'
Autor:
J. C. Sheldon, J. T. Lawrence
Publikováno v:
New Phytologist. 72:677-680
SUMMARY Apparatus is described for accurately measuring the rate of fall of wind-dispersed seeds over known distances. The detection system consists of photo-electric beams at the open ends of a Perspex tube. The apparatus was connected to an automat