CHARACTERISTICS OF SOILS 



TABLE II 



RANGE OF TEMPERATURES AT WHICH SEEDS HAVE BEEN FOUND 

 TO GERMINATE 



TABLE III 



DAYS REQUIRED FOR RADICLE TO APPEAR WHEN SEEDS ARE 

 PLANTED AND KEPT AT THE TEMPERATURES INDICATED l 



DAYS AT TEMPERATURES INDICATED 



1 A part of Haberlandt's findings as quoted in Warington's 

 Physical Properties of Soil, p. 140. 



