290 



The Journal of Heredity 



SUCCESSFUL BAKLEV HYBRIDIZATION 



In the center is shown a new and constant form of barley with stiff, erect ears, which resulted 

 from a cross between two very "nutant" old sorts: Hordeum distichum nutans (at the left) 

 and H.d.ereclum (at the right). Hybridizing experiments on an extended scale at Svalof 

 only date from the beginning of this century, but it is evident that mucli of the future progress 

 will be by that means. (Fig. 5.) 



choice among the strains, in accordance 

 with local conditions. Considerinj^^ the 

 keen comyjctition of our days, this 

 judgment becomes more and more a 

 vital question for modern agriculture. 

 It is especially for the people of the 

 North, who, because of their climate, 

 their isolated situation and the \'aried 

 character of their soil, can only rarely 

 get their seed supply from more favored 

 countries — it is for these people that a 

 method of selection, based on the very 

 heterogeneity of the material, necessarily 

 must have an inestimable value. It is 

 only by this means that we shall be 

 able to use the eventual values of our 

 old, native races; inferior as sorts. 



they nevertheless offer, by their most 

 serious defect — polymorphism — excep- 

 tional chances for the selection of a 

 better variety. 



With the same motive, we can handle 

 the species and native races of all 

 countries In- this method, no matter 

 from what climate they come or what 

 their nature may be, for we everywhere 

 find a diversity of forms odering 

 ample room for selection. 



INSTITITK RE.\(IIlvS ITS CH).\L. 



In cstal)lishing this method of work, 

 the order of ])rocedtire in which has 

 been reversed since the valtialion of 

 qtialities is made on varieties already 



