BARLEY 145 



In the southern or California section, as before stated, 

 the conditions are similar to those of India and Australia 

 and in some respects to those of the Mediterranean region, 

 Turkestan and Abyssinia. Barleys, therefore, from these 

 regions are adapted, and some, in fact, have already been 

 tested in California, with good results. Barley produc- 

 tion in California has rapidly increased in recent years, 

 while wheat production has just as rapidly decreased. 

 Coast barley is the variety chiefly grown, but two-row 

 varieties are also in use. What varieties are best is 

 really a problem by no means yet solved for this district. 

 In a four-years trial at Modesto, Smyrna White and 

 Tennessee Winter gave very good results. At the Plant 

 Introduction garden at Chico, several varieties have done 

 much better than Coast. Fully as important improve- 

 ments can be made in field management and seed selec- 

 tion. A good crop rotation is needed, especially such a 

 one as will add humus to the soil through green manuring. 



Varieties now grown or adapted : 



Abyssinian Hannchen Smyrna White 



Coast Peruvian Tennessee Winter 



Beldi 



Needs of the district : 



Crop rotation Seed selection 



Green manuring Weed eradication (crop rotation) 



135. Distribution in other countries. (1) Pyramidal 

 six-row barleys are grown apparently in scattering locali- 

 ties in Spain, Portugal, Greece, and Italy, and in West- 

 phalia in Germany, also as a winter barley in the British 

 Islands. (2) The parallelum varieties come from Japan, 

 China, and Abyssinia. (3) Common or nodding six-row 

 varieties of the pallidum group are grown in northern 

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