-5- 



N. C. Etiology* Eplphytology and Control of Soil-Borne Diseases 



of Peanut * To (1) obtain basic information on influence of 

 environmental factors, cropping & cultural practices, soil 

 microflora, & varietal susceptibility upon severity of soil- 

 borne diseases of peanut caused by various bacteria, fungi, & 

 nematodes; & (2) use such basic information in developing ef- 

 fective, practical control measures. 

 Pi. Path. 88 



N. C. The Influence of Plant Nutrients Upon the Development 



of the Peanut Plant and Upon the Quality and Quantity of Fruit 

 Produced . To (1) characterize deficiency conditions in peanuts 

 for all mineral elements considered to be essential for plant 

 growth; (2) evaluate effect of different plant nutrients upon 

 production of flowers & development of fruit; (3) characterize 

 changes in chemical composition of different parts of plant 

 thruout growing period; & (4) study physiological interrelation- 

 ship between B & Ca in peanuts. 

 Soils H-108 



N. C. The Productivity of Peanut Soils as Influenced by Crop 



Sequence and Management Practices . To (1) isolate factors 

 responsible for marked reduction in productivity of soils 

 which are planted frequently to peanuts; & (2) evaluate 

 different crop rotations & use of various fertilization & 

 management practices upon production of peanuts & other crops 

 in the rotation. 

 Soils 109 



Okla. Marketing Efficiency and Price Policy Related to Peanuts , 



(l) Learn nature of domestic supply function for peanuts of 

 various types. (2) Characterize demand structure for various 

 types of peanuts. (3) Evaluate impact of selected alternative 

 policies & programs on peanut industry (special reference to 

 marketing). (4) Isolate & analyze marketing problems involved 

 in moving peanuts from producers to 1st handlers. 

 Agr. Econ. 978 



Tex. Improvement of Peanuts Through Breeding and Selection . To 



(1) develop new varieties & strains of Spanish type peanuts with 

 resistance to Southern blight, & Cercospora leaf spots, high 

 yielding ability, uniformity of shape & size of seed, & seed 

 dormancy; (2) increase emphasis on assembling & testing of new 

 peanut breeding materials for a substantially higher order of 

 resistance to major diseases; (3) conduct hybridization & selec- 

 tion within groups of new & old breeding materials in the direc- 

 tion of combining high disease resistance with other outstanding 

 characteristics; & (4) use all available genetic techniques in 

 reaching the above objectives, including chemical & radiological 

 methods of modifying germ plasm. 



PI. Path. & Physiol., Agron. 569 



