STERILITIES OF WILD AXD CULTH^ATED POTATOES. 



13 



Table L — Potato crosses grouped according to pollen parent recorded by the United 

 States Department of Agriculture during the 9-year period from 1914 to 1922, inclu- 

 sive — Continued . 



Dale of 

 crossing. 



Aug. 

 Aug. 

 Aug. 

 Aug. 

 Aug. 



6, 1917 

 8, 1914 

 10, 1914 

 6, 1917 

 5, 1917 



Do 



Do 



Do 



Do 



Aug. 6, 1917 



Do 



Aug. 8,1914 

 Aug. 0, 1917 

 Aug. 11,1915 

 July 28,1916 



Parents. 



Russet Ruialx Petronius 



Rust Proof X Petronius 



Sir Walter Raleighx Petronius 



do 



Solanum sp. (S. A. No. 24)XPetronius 



Solanumsp. (S. A. No. 37) X Petronius 



Solanum sp. (S. A. No. 69) X Petronius 



Solanumsp. (S. A. No. 72)XPetronius 



Solanumsp. (S. A. No. 92) X Petronius 



Solanumsp. (S. A. No. 148)X Petronius 



Solanumsp. (S. A. No. 152) X Petronius 



State of Maine X Petronius 



Tuquerrena Blanca (S. A. No. 182) X Petronius. 



While McCorniickX Petronius 



Yellow-fleshed variety X Petronius 



Total and average . 



Aug. 7, 1914 American WonderX Pojata . 



Do Beauty of HebronX Pojata. . 



Do Early VicktorX Pojata 



Aug. 8,1914 Farmerx Pojata 



Do Gold CoinXPojata 



Aug. 7,1914 Irsh CobblerX Pojata 



Aug. 8, 1914 Late Blightlessx Pojata 



Do I McKinleyX Pojata 



Aug. 7, 1914 I New Scotch RoseX Pojata.. 



Do ' Seneca BeautyX Pojata 



Do I \^^lite BeautyX Pojata. 



Do White Elephant X Pojata . 



Total and average. 



Aug. 7,1914 



Do. 

 Aug. 8,1914 



Do. 

 Aug. 7, 1914 



Do. 



July 22,1919 

 July 21,1919 

 July 29,1919 



Early Eureka X Potentat 



Early Michigan x Potentat. . 



Farmer X Potentat 



Green Mountain X Potentat. 



Irish Cobbler X Potentat 



Seneca Beauty X Potentat. . 



July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 Aug. 

 July 

 May 

 May 

 May 

 June 

 July 

 July 

 July 

 July 

 July 



9, 1921 

 19, 1922 



22. 1919 



26. 1920 



23. 1920 

 12, 1922 

 17, 1922 



22. 1919 



14. 1921 

 18, 1921 

 15, 1921 

 30, 1921 



20. 1920 



23. 1920 



14. 1921 

 16, 1921 



26. 1921 



1. 1921 



22. 1922 

 27, 1922 

 29, 1922 

 31, 1922 



5. 1922 

 14, 1922 

 17, 1922 

 22, 1920 

 23, 1920 

 12. 1922 



Total and average . 



Classes 

 involved 

 in cross. 



Number of- 



Flowers 

 crossed. 



Black Christy X SeedUng 14232. 

 SeedUng 24642 X SeedUng 14232. 

 Seedling 38774 X Seedling 14232. 



Total and average 



America X Seedling 24642 



Arran Rose X Seedling 24642 



Black Christy X Seedling 24642 



....do : 



British Queen X Seedling 24642 



Charles Downing X SeedMng 24642.. 



do 



Clio X Seedling 24642 



do 



do 



do 



do 



Cummings' Pride X SeedUng 2 642. 



DargiU EarlvX SeedUng 24642 



Early OhioX SeedUng 24642 



do 



do 



do 



do 



Early Rose X SeedUng 24642 



do 



.do. 

 -do. 

 .do. 

 -do. 



EdzcU BlueX SeedUng 24642 . 



Epicure X SeedUng 24642 



do 



AXl 

 -XI 

 AXl 

 AXl 

 AXl 

 —XI 

 -XI 

 —XI 

 —XI 

 —XI 

 -XI 

 -XI 

 —XI 

 AXl 

 -XI 



AX- 



AX- 

 AX- 



AX- 



AX- 

 AX- 



AX- 



AX- 



BX- 



AX- 



AXl 



AXl 



BXl 



BXl 



BXl 



BXl 



BXl 



AXl 



AXl 



AXl 



AXl 



AXl 



BXl 



AXl 



AXl i 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



AXl 



3 

 7 

 15 

 8 

 3 

 3 

 3 

 3 

 3 

 8 

 3 

 5 

 1 

 6 

 5 



799 



19 

 13 



6 

 11 

 14 



9 



7 

 10 

 10 

 14 



8 

 15 



136 



4 

 4 



10 

 4 

 3 



10 



35 



17 



75 



6 



98 



Seed 



baUs 



produced. 



4 

 23 

 22 



9 

 45 

 20 

 44 

 40 

 11 

 12 

 13 



5 



6 



S 

 27 

 16 

 18 

 10 

 38 



1 

 11 



4 

 14 

 23 

 86 

 41 



7 

 20 



2 

 



13 

 1 

 3 

 

 1 

 

 

 

 

 

 

 5 

 



278 



2 

 6 

 2 

 2 

 3 

 1 

 3 

 24 

 

 

 

 1 

 1 

 2 

 

 

 1 

 S 

 31 

 

 

 

 1 

 18 

 82 

 21 

 

 2 



Percent- 

 age of 

 success. 



66.67 







86.67 

 12.50 

 100 





 33.33 

























 83.33 







34.79 







23.08 

 16.67 









 11.11 





















 26.67 



6.62 







23. 53 

 

 66.67 



8.16 



50.00 

 26.09 



9.09 

 22.22 



6.67 



s.oo 



6.82 

 60.00 















20.00 

 16.67 

 25.00 











6.56 

 80.00 

 81.58 















7.14 

 78.26 

 95.35 

 51.22 





 10.00 



