- 7 - 



Corn 



Fla. C6rn Breeding . To (l) breed improved com hj^ride, with 



emphasis on higher yields, better standability, and more insect 

 and disease resistance; and (2) study comparative efficiency of 

 different breeding methods, 

 Agron. 374 



Ga. Com Breeding , To develop hi^ yielding vAiite and yellow 



corn hybrids and varieties well adapted to various soil and 

 climatic conditions of Georgia. 

 Agron. 3k 



111. Etiology of Pathogenic Organisms Associated with Corn 



Stalk Rot . To learn (l) pathogenicity of species isolated 

 from corn stalk rots; (2) age of corn plant in vAiich infection 

 begins; (3) mode and source of infection and site of initial 

 infection; (4) possible interaction of different fungi in 

 relation to initial infection. 

 PI. Path. 68-351 



Ind. Breeding. Testing, and Distribution of Superior Dent Corn 



Hybrids . (l) Produce and test new inbreds from open-pollinated 

 varieties, from second cycle inbreds. by recovery from back- 

 crossing, by recurrent selection; (2; dent com hybrids of 

 superior yield, standing ability, disease and insect resistance, 

 and quality. (3) Breed com for specific uses. (4) Incorporate 

 cytoplasmic male- sterility and fertility-restoring factors into 

 inbred lines used in hybrid seed production. (5) Maintain, 

 produce, and distribute pure foundation stocks of inbred lines 

 used in approved hybrids. (6) Cooperate with com breeders to 

 obtain superior hybrids. 



Bot., PI. Path. 973, Coop. USDA 



Iowa The Development of Improved Corn Hybrids . To (l) produce 



superior inbred lines of corn for different sections of Iowa and 

 the Corn Belt; (2) evaluate lines for combining ability, resis- 

 tance to, or tolerance of major com insects, resistance to 

 important plant pathogens, and nutritional and industrial charac- 

 teristics; (3) compare breeding procedures as to relative 

 efficiency in obtaining desired characteristics to the maximum; 

 (4) use existing data and new data to find most efficient pro- 

 cediires for conducting trials for yield or other desirable 

 agronomic characters; and (5) conduct needed basic studies to 

 facilitate attainment of above objectives. 



Agron., Bot., PI. Path., Chem., Ent. 1140, Coop. USDA 



