POTATO BREEDING AJS^D SELECTION". 13 



Table I. — Record of potato crosses made at Burlington, Vt., in 1909 — Continued. 



Parentage of cross. 



Num- 

 ber of 

 flowers 

 crossed . 



Num- 

 ber of 

 seed 

 balls de- 

 veloped. 



10 







5 







11 







16 







5 







8 







4 







7 







8 







7 







9 







79 



11 



3 







12 



2 



21 







17 



7 



U 



3 



13 



11 



58 



9 



85 



46 



17 







114 



55 



9 







10 







9 



1 



4 







20 



4 



15 



3 



11 



7 



34 



5 



8 







2 







16 







16 



3 



3 



3 



10 



6 



8 



3 



10 



3 



14 



9 



15 



3 



7 



2 



5 



2 



21 



9 



6 







13 



7 



14 



9 



9 



1 



9 







51 



12 



34 



2 



6 



1 



62 



26 



12 



2 



15 







14 



4 



6 







12 



5 



4 



3 



44 







13 







9 







4 







11 



5 



3 







14 



6 



19 



10 



27 







4 







5 







6 







9 



A 



9 







9 



1 



16 







9 



2 



12 







37 



22 



12 



K 



3 







9 



4 



Percent- 

 age of 

 success. 



Number 

 of tuber- 

 bearing 

 seedlings, 



Average 

 number 

 of seed- 

 lings per 

 seed ball. 



Factor X Keeper ". 



Factor X Gastold 



Factor X Apollo 



Factor X Keeper 



Factor X Norcross 



Factor X Alexander's No. 1 Red 



Factor X Solanum eiuberosvm Lind 



Factor X Round Pinkeye 



Factor X Solanum mag'lia 



British Queen X Star of the East 



Up-to-Date X Fuerst Bismarck 



Up-to-Date X Keeper 



Up-to-Date X Norcross 



Up-to-Date X Early SUverskin 



Up-to-Date X Empire State 



Up-to-Date X Irish Seedling 



Up-to-Date X Round Pinkeye 



Delaware X Keeper 



Delaware X Round Pinkeye 



Gem of Aroostook X Keeper 



Gem of Aroostook X Rand's Peachblow. 



Gem of Aroostook X Round Pinkeye 



Blight Proof X Fuerst Bismarck. .' 



Blight Proof X Apollo 



Blight Proof X Early Silverskin 



Blight Proof X Garnet Chili 



Green Mountain X Apollo 



Green Mountain X Keeper 



Green Mountain X Early Silverskin 



Green Mountain X Round Pinkeye 



Green Mountain X Alexander's No. 1 Red 



Green Mountain X Apollo 



Harris Snowball X Fuerst Bismarck 



Harris Snowball X Apollo 



Harris Snowball X Early Silverskin 



Harris Snowball X Round Pinkeye 



Holbom Abundance X Apollo 



Holbom Abundance X Early Silverskin 



Hclbom Abundance X Irish Seedling 



Keeper X Fuerst Bismarck 



Keeper X Keeper 



Keeper X Norcross 



Keeper X Early Silverskin 



Keeper X Empire State 



Keeper X Irish Seedling 



Keeper X Round Pinkeye 



Keeper X Venezuela 



Norcross X Apollo 



Norcross X Keeper 



Norcross X Round Pinkeye 



Rural New Yorker No. 2 X Early Silverskin 



Star of the East X Round Pinkeye 



Alexander's No. 1 Red X Irene 



Alexander's No. 1 Red X Apollo 



Alexander's No. 1 Red X Keeper 



Alexander's No. 1 Red X Factor 



Professor Maerker 652 x Apollo 



Professor Maerker 652 '/ Keeper 



Professor Maerker 652 /, Solanum clubcrosum Lind 



Professor .Mafrker (V)2 / Solanum maqlia 



Professor Maerker 652 X Alexander's No. 1 Red 



Rural Blush X Star of the p:ast .■ 



Manly X Irene 



Manly X AU-xander's No. 1 Rod 



Early Excelsior X A polio 



f^arly Excelsior / Keeper 



Early Excelsior / Solanum cluhcTonum I>ind 



Early Excelsior / Keeper 



Early Excelsior / Solanum elubcronum f>ind 



Empire State / FiiorHt Bismarck 



Empire Hlato X Keefier 



Empire State / Solanum ma'jlia 



Garnet (,'liili X Ke^jpur 



Garnet Chill X Fuerst Bismarck 



OametChill X Early SllvcrHkin 



<'iamet Chill X liand'H I'eachblow 



Round rinkeve / Keeper 



Venezuela X keeper 



Venezuela X Solanum mnatia 



Whlton'9 White Mammoth X Keeper 













































 13.9 





 16.7 







41.2 

 21.4 

 84.6 

 15.5 

 54.1 





 48.2 









 11.1 





 20 

 20 

 63.6 

 14.7 















18.8 

 100 

 60 



37. 5 

 30 

 64.3 

 20 

 28.6 

 40 

 42.9 







53.8 

 64.3 

 11.1 





 23.5 



5.9 

 16.7 

 41.9 

 16.7 





 2.S.6 







41.7 

 75 

















 45.5 





 42.9 



52. 6 

 













 66.7 





 11.1 





 22.2 





 5!l. 5 

 66. 7 





 41.4 















































457 







50 







89 



75 



537 



388 



1,562 







1,873 











4 







102 



90 



373 



221 















102 



146 



127 



561 



268 



778 







30 



13 



340 







121 



.227 



10 







480 



60 



39 



990 



49 







154 







122 



66 



















242 







133 



Zil 



















114 







38 







57 







55:t 



■157 

 













































 415 





 25 







12.7 

 25 



48.8 

 43.1 

 34 





 34 











4 







25.5 

 30 



53.3 

 44.2 













 34 



48.7 

 21.2 

 '18.7 

 89.3 

 86.4 





 15 



6.5 

 37.8 







17.3 

 25.2 

 10 





 40 

 30 

 39 

 38.1 

 24.5 





 38.5 







24.4 

 22 

















 48.4 







22.2 

 211.7 

















 21 





 3H 





 2H, 5 







•ir,. 1 



57. 1 

 

 19 



