4 BITTER PIT INVESTIGATION. 



CONTENTS continued. 



XIV. Experiments under natural conditions, etc. continued. PAGE 



B. Pruning Experiments 6. Burnley Horticultural Gardens, Victoria . . 60 



7. Deepdene, Victoria . . . . . . . . . 60 



8. Bathurst, New South Wales 61 



9. Yaneo, New South Wales 63 



10. Blackwood, South Australia . . . . . . . . 64 



1 1. West Tamar, Tasmania . . . . . . . . . . 65 



12. New Norfolk, Tasmania . . . . . . . . . 65 



General Summary . . . . . . . . . . . . . . . . . . 66 



C. Experiments with Stocks 13. Burnley Horticultural Gardens, Victoria . . . . 67 



14. Blackwood, South Australia . . . . . . . . 69 



The Effect of the Stock on the Scion 70 



D. Tillage Tests 15. Blackwood, South Australia 70 



E. Irrigation Experiments 16. Bacchus Marsh, Victoria . . . . . . . . 71 



General Summary . . . . . . . . . . . . . . . . . . . . 72 



F. Cold Storage Experiments . . . . . . . . . . . . . . . . . . 72 



XV. The Cause of Bitter Pit 73 



XVI. The Control of Bitter Pit 76 



XVII. Practical Applications 78 



XVIII. Experiments worthy of being continued . . . . . . . . . . . . . . . . 80 



Manuring . . . . . . . . . . . . . . . . . . . . . . . . 80 



Pruning . . . . . . . . . . . . . . . . . . . . . . . . 80 



Stocks 81 



Breeding and Selection . . . . . . . . . . . . . . . . . . . . 81 



Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . 82 



Literature . . . . . . . . . . . . . . . . . . . . . . . . . . 84 



Explanation of Plates . . . . . . . . . . . . . . . . . . . . . . 85 



Appendices I. Weather Conditions for nine months in Victoria, New South Wales, and South 



Australia, up to and including March, 1915 .. .. .. .. .. 169 



II. List of 100 Varieties of Apples growing in Burnley Horticultural Gardens, with 



relative amount of Pit for four years in succession .. .. .. .. 170 



Index to Reports . . . . . . . . . . . . . . . . . . . . . . . . 173 



