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Rice 



Ark, Control of Rice Diseases , (l) Develop new disease 



resistant rice varieties. (2) Find more effective seed 

 treatment compounds. (3) Learn cause and develop control 

 measures for "rice yellows." 

 PI. Path. 455, Coop. USDA 



La. Studies on the Kernel Smut of Rice . (1) Develop a 



suitable method of artificial inoculation of rice. (2) 

 Study genetics of fungus and learn if diploid stage is the 

 only stage in which fungus is capable of inciting infection. 

 PI. Path. 933 



La. Fungi Causing Ligjit and Sterile Grains in Rice , (l) 



Learn to what extent these fungi are responsible for light 

 and sterile grains in rice. (2) Study mechanism of infection 

 and subsequent disease in rice. (3) Screen rice varieties for 

 resistance to these fungi, emphasizing Dr. Wheeler *s technique. 

 PI. Path. 934 



Sorghtmis 



Okla. Disease Resistance in Sorghums . To incorporate 



resistance to leading sorghum diseases in new sorghum 

 varieties to replace disease-susceptible standard varieties 

 in the Southwest; thus to reduce annual losses of 10 percent 

 to 20 percent now suffered in sor^um production in this 

 area as a result of sorghum diseases. 

 Agron., PI. Path. 481, Coop. ARS 



S. Dak. Breeding and Testing Forage and Grain Sorghums and Sudan 

 Grass\ To develop (l) grain sor^ums adapted for climatic 

 conditions of state. Place emphasis on high yielding strains 

 that stand longer after killing frost, possess open panicles, 

 larger seeds, greater and sturdier seedlings as well as drou^t, 

 insect and disease resistance, (2) forage sorghums and sudan 

 grass low in hydrocyanic acid, early maturing and produce high 

 yield of hi^ quality palatable forage, (3) dual purpose large- 

 seeded grain and sweet stalked forage types, low in hydrocyanic 

 acid for silage and fodder, (4) male sterile lines and recover 

 lines for hybrid sor^ums, (5) new variants using colchicine, 

 radiation, etc., (6) and evaluate agronomic factors and 

 adaptability of sor^ums and sudan grass under climatic and 

 environmental conditions of state, (7) cooperate with near 

 experiment stations and USDA throu^ conferences, testing 

 programs, and exchange of materials. 

 Agron. 6l 



