146 MAIND AGRICULTURAL EXPERIMENT STATION. I903. 



YIELDS FROM FIFTY-FIVE HILLS OF TEN VARIETIES POTATOES AT 



TIME OF DIGGING. 



Variety. 



Date of 

 harvesting. 



Unsprayed. 



Sprayed, 





I 



c 



o '^ 



05 . 



tn 



o2 





05 . 



Early Michigan 



Average 



Bovee 



Average 



Early Ohio 



Average . 



Gem of Aroostook . . 



Average . 



Irish Cobbler 



Average 



Hulett's Rust Proof. 



Sept. 8 

 Oct. 7.. 



Mill's Mortgage Lifter 



Average 



Green Mountain 



Average 



Polaris , 



Average 



Maggie M urphy 



Average , 



Average of 5 earlier varieties , 

 Average of 5 later varieties. . . . 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 



Sept. 8 

 Oct. 7.. 

 Sept. 8 

 Oct. 7.. 



55 

 52 

 54 



45 

 59 

 52 



18 

 32 

 25 



46 

 74 

 60 



95 

 66 

 81 



81 



68 

 82 

 75 



68 



84 

 76 



63 

 59 

 61 



55 

 51 

 53 



52 



57 

 54 

 71 



19 

 21 

 20 



33 



28 

 31 



40 

 38 

 39 



24 

 36 

 30 



20 

 13 

 17 



24 

 25 

 25 



37 



18 

 28 



40 

 41 

 41 



28 

 45 

 40 



27 

 27 

 27 

 27 



78 

 78 

 78 



60 

 57 

 59 



49 

 68 

 59 



71 



72 

 72 



111 

 107 

 109 



99 



82 

 82 



153 



105 



3 

 1 

 2 



12 

 11 

 12 



22 

 16 

 19 



20 

 13 

 17 



12 



6 

 9 



11 



20 



14 



7 



7 



S 



7 



6 



8 



7 



9 

 5 



7 



5 

 6 

 6 



3 



3 



7 

 7 

 7 

 6 



SUMMARY OE RESULTS. 



There is a marked difference in the bhght resistant properties 

 of the different varieties. As a rule the earlier varieties were 

 soonest attacked. 



Because of the uneven stand only very general conclusions can 

 be drawn from the yield. 



With the exception of the Bovee, harvested October 7, the 

 yield was sufficiently increased to more than equal the cost of 



