86 



PLANT-BREEDING 



accidental crosses are occurring in their pure pedigree-cul- 

 tures, from time to time. 



Some instances may be given. Among the cultures of 



Fie 



-':5- 



Svalof oats with bending branches. 



pedigree wheat started from an initial selection made in the 

 year 1892, a race indicated by the book number 0608 distin- 

 guished itself by long and stiff culms, combined with an un- 

 usually good quahty of the grains. But it had two notable 



