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Iowa The Development of Superior. Disease Resistant Varieties 



of Barley . To (l) direct hybridization and selection work 

 toward developing varieties of barley, wheat, and flax best 

 suited to maximum production in certain areas of the state; 

 (2) test and evaluate new hybrids in early generations at 

 northern and western outlying stations, selecting for high 

 yield, stiffness of straw, mid-se^Cson maturity, satisfactory 

 grain quality and resistance to diseases most likely to limit 

 yields; (3) to obtain additional and more critical information 

 on value of bulk and pedigree methods of breeding barley, as 

 work to date gives some conflicting information; (4) investi- 

 gate effects of newer types of drying equipment on malting 

 quality of dried barley; (5) test new accessions of barley 

 in the field to locate disease resistant germ plasm; (6) 

 cooperate with Farm Crops in observing new germ plasm 

 derived from breeding program for susceptibility and resis- 

 tance to disease; (?) determine importance of diseases in 

 wheat production in Iowa, especially spread of wheat mosaic; 

 (8) develop new and more simple technics for producing 

 disease epiphytotics necessary for locating disease- 

 resistant germ plasm in barley, especially with respect to 

 scab. 



Farm Crops, Bot., PI. Path., Agron. 1177 



Md, Breeding for Mildew Resistance in Winter Barley and 



Wheat . To (l) contribute to the study of genetics of 

 resistance to powdery mildew, Erysiphe gramines hordei, 



(2) devise or improve methods for creating artificial 

 epidemics of the disease useful in evaluating breeding 

 material and in estimating damage from the disease, and 



(3) breed superior varieties of winter barley and winter 

 wheat having a high degree of mildew resistance. 



Agron. B-69 (NE-23) Coop. ARS 



Minn. Varietal Improvement in Barley . To obtain improved 

 varieties of barley for Minnesota. 

 PI. Genet., Agron. 1304 



Miss. Barley Breeding . To (l) develop new varieties of barley 

 better in all respects than currently available strains, (2) 

 determine where in this state barley can best be grown, and 

 (3) conduct fundamental studies when they are needed. 

 Agron. -Crops HC-4 



