CEREAL EXPERIMENTS IN MABYLAND AND VIRGINIA. 



23 



(Dietz Longberry) eleventh of 22 varieties grown in all 5 years; Cur- 

 rell has been grown only 2 years, with only a fair average yield; and 

 Turkish Amber, Red Clawson, and Dietz (Md. No. 95) have not 

 been included in the tests at Arlington. Of the remaining 7 in the 

 10 best at Arlington, Poole (C. I. No. 1979) was discarded at 

 College Park in 1911 and Purple Straw and Rocky Mountain in 1912; 

 Dawson is eighteenth and Fultz twenty-second among the 29 varieties 

 grown all 7 years; Stoner lias been grown only 3 years, with fair 

 yields: and Purple Straw (C. I. No. 1957) has not been included in the 

 tests at College Park. 



TESTS OF SELECTIONS IN FIELD PLATS. 



Man}' selections have been made from some of the leading varieties 

 of winter wheat, the object being to develop superior strains. While 

 the nursery work along this line has been rather extensive at both 

 College Park and Arlington Farm, the number of pure lines that have 

 been tested in field plats in comparison with the old strains is com- 

 paratively small. At College Park several of the high-yielding pure 

 lines of the Fultz and Currell varieties were sown in twentieth-acre 

 plats in the fall of 1910. Plats containing a mixture of a half dozen 

 or more pure lines of each variety also were sown, as well as plats of 

 the original unselected varieties for checks. Unfortunately, the 

 Currell checks were not continued after 1911, so that only the yields 

 of Currell in the regular varietal test in another field are available for 

 comparison. The annual and average yields of these selections and 

 of the original unselected varieties at College Park from 1911 to 1914 

 are shown in Table VI. At Arlington Farm pure-line selections were 

 tested in field plats only in 1913 and 1914, so that data of sufficient 

 value to report have ».ot yet been obtained. 



Table VI. — Annual and average yields of pure lines of Fultz and Currell winter ivheats 

 at the Maryland Agricultural Experiment Station (College Park), 1911 to 1914, inclu- 

 sive, with yields of the unselected varieties for comparison. 



Variety and strain. 



Fultz (C. I. No. 1923 and Md. No. 84): 



Original stock 



Mixture of pure lines 



Plat 35 (1909 B. P.) ' 



Plat 42 ( 1909 B . P.) 



Plat 29 (1909 B. P.) 



Originalstock 



Currell (C I. No. 3326 and Md. No. 89) 



Originalstock 



Mixture of pure lines 



Plat 7 (1909 B. P.) 



Plato (1909 B. P.) 



Plat 13 (1909 B. P.). .". 



Original stock 



Yield per acre (bushels). 



1911 



1912 



1913 



1914 



Aver- 

 age. 



38.60 



18.20 



24.27 



30.33 



27.85 



37.60 



19.37 



22.80 



36.07 



2S.96 



36.33 



24.20 



21.83 



34.67 



26.76 



37.10 



25.07 



22.67 



34.67 



29.88 



38. 70 



22.57 



24.07 



29.67 



28.75 



35.73 



26.77 



22.00 



27.67 



28.04 



35.10 



2 20.20 



2 22. 10 



= 41.87 



29.82 



36.87 



29.87 



23. 33 



28.87 



29.74 



37.43 



28. 70 



23.57 



32.00 



30.43 



38.47 



26.07 



24.57 



( 3 ) 



29.70 



35. 03 



30.73 



25.47 



29.77 



30. 25 



36.23 

















1 Breeding plat of 1909. 



2 Not comparable: grown in a different field. 



3 Discontinued. 



The Currell checks were discontinued after 1911. 



