DIVISION OF HORTICULTURE 



303 



SESSIONAL PAPER No. 16 



Last year, in a test of twenty-one varieties and strains, the most productive six 

 in order of yield were Industry (O.A.C. Selected 1910), Sutton's Satisfaction, Indus- 

 try (O.A.C. Selected 1910-11), Livingston's Globe, Dobbie's Champion and Bonny 

 Best. It will thus be seen that the three varieties which did best for the two years 

 were Industry, Sutton's Satisfaction and Bonny Best, but Livingston's Globe and 

 Dobbie's Champion are also two very good ones. 



POTATOES. 



The season of 1912 was a very favourable one for potatoes, and, at the Central 

 Experimental Farm, the best crop for several years was harvested in the experimental 

 plots. New stock was obtained of most varieties and many sorts not hitherto tested 

 were tried. The potatoes from old stock were planted in a separate field, and the 

 yields, while recorded, were not compared with the new stock, the twelve best-yielding 

 varieties given below being all from the new stock. In these test plots there were one 

 hundred and thirty-six varieties, of which sixty-six sets of each were planted- The 

 ground, which had been in clover in 1911, was ploughed early in the autumn of that 

 year and the sod was well rotted when the potatoes were planted on May 30, 1912. 

 The sets were cut so that they would have at least three good eyes each and were 

 dropped one foot apart in rows two and one-half feet apart. They were covered with 

 the hoe to ensure greater uniformity. The ground was kept thoroughly cultivated 

 during the growing season and the plants sprayed with Bordeaux mixture to control 

 late blight, and with a mixture of eight ounces of Paris green and one and one-half 

 pounds of arsenate of lead to a barrel of water to kill the potato beetles. The potatoes 

 were dug on October 7. There was little evidence of rot. 



TWELVE MOST PRODUCTIVE VARIETIES OF POTATOES IN UNIFORM TEST 



PLOTS — 1912. 





1 

 2 

 3 

 4 

 5 

 6 

 7 



a 



10 



11 



12 



Dalmeny Hero 



Eureka Extra Early 



Table Talk 



Conquering Hero . . . 

 Rochester Rose. , 



Delaware 



Urn pee's Extra Early 

 Dalhousie Seedling . 



Early Hebron 



Carman No. 1 . . . 



Houlton Rose 



Clyde 



Yield 

 per Acre 

 p. i Acre. Marketable. 



Total Yield 



Bush. Lb. 



5S0 

 5!J3 

 554 

 550 

 530 

 52s 

 519 

 519 

 51 4 

 510 

 501 

 499 



48 

 12 

 24 



48 



12 

 12 

 48 

 24 

 36 

 24 



Bush. Lb. 



457 

 157 

 488 

 409 

 448 

 492 

 479 

 378 

 431 

 4(36 

 440 

 448 



36 

 36 

 24 

 12 

 43 

 48 

 36 

 24 

 12 

 24 



48 



Colour. 



White. 



Pink. 

 White. 



Pink <»nd white. 

 White. 

 Pink. 

 White. 



SPRAYING EXPERIMENTS. 



Lime Sulphur versus Bordeaux for Potatoes. 



An interesting spraying experiment conducted in the Horticultural Division in 

 1912, was one made for the purpose of comparing the relative value of the lime sul- 

 phur wash with Bordeaux mixture in controlling late blight of the potato. Only one 

 spraying was given in this experiment, the date being July 28, 1912. One row 33 

 feet long of each of the nine varieties, Canadian Standard, St. Patrick, Burpee's 



