44 BITTER PIT INVESTIGATION. 



10. AT GOVERNMENT EXPERIMENT ORCHARD, SOUTH AUSTRALIA. 



The trees are now five and six years old, just at an age when they are beginning to bear, and during 

 the next five years the comparative results should be instructive. 



The three principal varieties of apples grown for export, at least in Victoria, are Jonathan, Rome 

 Beauty, and Dunn's Favourite, and the effect of pruning and thinning on the development in such 

 varieties should be particularly valuable. 



At the present stage of the experiment Cleopatra is practically the only variety which has pro- 

 duced Pit to any extent, but the unpruned trees where the fruit was thinned and the crop very light 

 were free from Pit. 



The form of pruning applied is practically identical with what has been described as "light 

 pruning" in the experiments conducted in other States. 



TABLE XXV. 

 1. PRUNED EVERY YEAR FRUIT NOT THINNED. (TREES PLANTED AUGUST, 1910.) 



Tree No. Variety. Total Yield. Pitted. Per cent. Pitted. 



Ibs. Ibs. 



1 . . Cleopatra . . . . 1 



3 . . Dunn's Favourite . . 1 



4 .. ,, . . J 



5 . . Jonathan . . . . '} 



6 .. ..J 



Scarlet Nonpareil . . } .. 9 



8 . . ,, . . J 



2. PRUNED EVERY YEAR FRUIT THINNED. (TREES PLANTED AUGUST, 1910.) 

 I Cleopatra ' ' j- 41 3| 9-1 



3 . . Dunn's Favourite 

 4 



5 . . Jonathan 



6 .. ... 



7 . . Scarlet Nonpareil 



8 .. 



3. NEVER PRUNED FRUIT NOT THINNED. (TREES PLANTED AUGUST, 1910.) 

 1 . . Cleopatra 



; .. .. u .. .. 4 -e 



3 . . Dunn's Favourite 



4 . . . . J Ib2 i 



e Jonathan ; 



7 Scarlet Nonpareil 



4. NEVER PRUNED FRUIT THINNED. (TREES PLANTED AUGUST, 1910.) 

 1 Cleopatra . . . . } 



3 . . Dunn's Favourite . ] 



4 .. ..I 16 I 



Jonathan . . . . 1 



7 . . Scarlet Nonpareil . ] 



8 .. 6* .. ,. J .. .. 13-6 



