-40- 



Tempersture Relations of Ciiltixres in Distilled 



Vjeter . 



A series of cultures vfas carried out with 



distilled water instead of nutrient solutions, and the 



obtalnecl 

 mean hovirly rates of shoot el6ngatlon/^or a 110 hour 



period and for the seven different maintained temperatvires, 



are given in table V. Corresponding data for the nutrient 



solution cultures are given in tha-t- table for comparison. 



