TESTS OF SELECTIONS OF OATS. 3 



COMMERCIAL VARIETIES. 



In 1904 pure strains from commercial varieties were started from 

 heads selected from the field plats grown that year in cooperation 

 with the Funk Bros. Seed Co., at Shirley, 111. The series numbers of 

 these pure-line selections are as follows : 



125. Silvermine (Great American). 



131. Pringle Progress. 



132. Sixty-Day. 



62. Sixty-Day. 



63. Burt. 

 115. Red Rustproof. 



117. Early Champion (Alaska). 



118. Silvermine (Musselshell). 



119. Probsteier. 



120. Silvermine (Great Dakota) 



123. Welcome. 



124. Silvermine. 



137. Early Champion. 



138. Early Champion. 

 142. Goldmine. 



165. Sixty-Day. 

 5938. Sixty-Day. 



THE SYSTEM OF NUMBERING. 



As shown in the preceding paragraphs, each combination of varieties 

 which was made was given a series number. Thus, all hybrids in 

 which Sixty-Day, S. P. I. No. 5938, was the female parent and Clydes- 

 dale, P. B. No. 8, was the male parent were of series 49. Each 

 combination of individuals was designated by a letter, as a, b, c, etc. 

 For instance, if crosses were made on three plants of Sixty-Day oats, 

 using the same or different plants of Clydesdale as the male parents, 

 these individual combinations were numbered 49a, 49b, and 49c. 

 Each plant produced in the F t generation was numbered consecutively 

 for each combination of individuals, as 49al, 49a2, 49a3, 49bl, etc. 

 This number is always written as a unit. As individual plant selec- 

 tions were made, these were given serial numbers, this number being 

 separated from the hybrid plant number by a dash. As subsequent 

 selections were made, these were also numbered serially. Thus, 

 49a2-20-7 is pure-line selection No. 7 from pure-line selection No. 20 

 from plant No. 2 of the hybrid combination No. 49a, Sixty-Day X 

 Clydesdale. If a reselection was made after a lapse of one or more 

 years without selection, this lapse is indicated by xx, as 49a2-20- 

 xx-7. If a bulk selection was made, the selection number is written 

 in Roman instead of in Arabic, as 51al-15-I. 



The selections from commercial varieties were numbered in the 

 same manner as those from the hybrids. Each stock was given a 

 series number, but the numbers of pure-line selections from commer- 

 cial varieties do not contain a letter followed by a numeral, as is the 

 case in all hybrid numbers. Each individual selection bears the 

 series number followed by a serial number within the series and 

 separated from it by a dash, as 125-17. Bulk selections, as in the 

 hybrids, are indicated by Roman numerals. Thus, 62-II-18-1 is 

 the progeny of plant No. 1, selected from the progeny of plant No. 18, 

 which in turn was selected from Bulk Selection II from the original 



