100 



HITTER PIT INVESTIGATION. 



(c) On Duchess of Oldenburg Stock Direct — 



10. Cleopatra budded on Duchess of Oldenburg 



(d) On Magg's Seedling Stock Direct — 



11. Annie Elizabeth budded on Magg's Seedling 



(e) On Northern Spy Roots with Paradise Intermediate — 



12. Prince Bismarck on Paradise on Spy 



2 years old when planted. 

 2 years old when planted. 



. 2 years old when planted. 



10. Experiments with Stocks at Blackwood, South Australia. 

 Quite an elaborate series of experiments, testing the influence of different stocks on the 

 development of the disease, are being carried out by Mr. Quinn. The trees were worked in an Adelaide 

 Nursery in September, 1907, and planted in the Experiment Orchard in August, 1908. 



Table XXIII. — Northern Spy Koots with Intermediate Stocks. — Testing the Influence 



of Different Stocks. 



Test No. 



( 1 



a 



o 



cm ^ 



10 



11 



12 

 13 



14 



15 

 16 



17 

 18 



Description of Trees and Stocks Used. 



Baldwin on Dunn's Seedling on 



spy 



Baldwin on Rokewood on Spy 

 Baldwin on Rokewood 



Cleopatra on Dunn's Seedling 

 on Spy 



Cleopatra on Rokewood on Spy 



Cleopatra on Spy 

 Cleopatra (Q) on Dunn's Seedling 

 on Spy 



Cleopatra (Q) on Rokewood on 



Spy 



Cleopatra (Q) on Spy 



Esopus Spitzenberg on Dunn's 

 Seedling on Spy 



Esopus Spitzenberg on Roke- 

 wood on Spy 



Esopus Spitzenberg on Spy . . 



Jonathan on Dunn's Seedling 

 on Spy 



Jonathan on Rokewood on Spy 



Jonathan on Spy . . , . • 

 Shockley on Dunn's Seedling on 



Spy 



Shockley on Rokewood on Spy 

 Shockley on Spy 



Dates Gathered. 



| 9.3.19121 

 \ 4.4.1912/ 



24.2.1912] 

 16.3. 1912 | 

 I 26.3.1912 

 [ 4.4.1912J 

 /25. 3. 19121 

 I 4.4.1912T 

 21.3.1912 



26.3.19121 

 4.4.1912/ 

 9.3.1912] 



14.3.1912^ 

 4.4.1912J 



14.3.19121 

 4.4.1912J 



11. 3.1912^ 

 4.4.1912/ 



2.3.1912 



f 9.3.1912] 

 121. 3. 19m 

 ll2.4.1912j 

 J 9.3.19121 

 112.4.1912/ 

 1.4.1912) 

 4.4.1912/ 



Date of Last 

 Examination. 



16.5.1912 



16.5.1912 



16.5.1912 



Results re Bitter Pit. 



(3 apples clean, 11 pitted, 3 fell 

 { immature. 



Not fruited yet. 



Not fruited yet. 



f 1911 — 1 apple pitted. 



\1912 — 16 apples clean, 5 pitted. 



11 apples clean, 2 fell immature. 

 8 apples clean. 



1 apple clean, 1 fell immature. 



9 apples clean, 6 pitted, 1 fell 

 immature. 



8 apples clean. 



2 apples^clean. 



1 apple clean, 2 pitted. 



Not fruited yet. 



17 apples clean, 9 pitted. 



1911 — 2 apples clean. 



1912 — 48 apples clean, 2 crinkled, 

 1 crinkled and pitted, 2 pitted, 

 16 fell immature. 



6 apples clean, 7 pitted. 



f 41 apples clean, 2 crinkled, and 

 \ 3 pitted. 



; 1911 — 1 apple clean. 

 \1912—56 apples clean, 2 pitted 



7 apples clean. 



