108 



University of California Publications in Agricultural Sciences [Vol. 3 



Mean Maximum 

 Balling variation 



18.6 2.0 



21.4 



20.2 2.4 



21.5 



3.9 



19.6 



2.0 



20.3 



3.0 



16.6 



17.5 



19.7 



1.7 



1.8 



Mean variation, six ripest varieties 2.32 



Mean variation, six least ripe varieties 2.20 



Average variation, whole series 2.30 



* Adjacent vines. 



