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Wis. Alfalfa Breeding . To develop (l) resistance to common 



leafspot (Pseudopeziza medicaginis); (2) persistence of 

 stand under frequent cutting and grazing; (3) seedling vigor 

 and capacity to vrithstand annual weed and nurse-crop compe- 

 tition; (4) seed producing capacity, resistance to leafhoppers, 

 bacterial wilt, "crown deterioration," blackstem, downy mildew, 

 and yellow leaf blotch, 



Agron., PI. Path., Ent. 321, Coop. ARS 



C lovers 



Ala. White Clover Improvement . To (l) develop by plant breeding, 



varieties of white clover which are superior to existing varieties; 

 (2) determine importance of auid heritability of plant charac- 

 teristics which contribute to agronomic value of white clover; 

 and (3) develop techniques to identify plants carrying desirable 

 germ plasm. 



Agron., Soils 547 



111. Blackstem of Red Clover and Other Forage Legumes . To 



make (l) comparative study of host-parasite relations of black- 

 stem disease of red clover and alfalfa, and (2) comparative 

 study of pathogenicity, physiology, and morphology of the two 

 blackstem fungi. 



PI. Path. 68-396 (NC-37) 



Ind. Red Clover Improvement Through Selection and Breeding 



for Desirable Agronomic Characteristics and the Control of 

 Diseases and Insects . To develop by breeding and selection 

 high yielding varieties of red clover well adapted to 

 environmental conditions of this area and having resistance 

 to diseases and insects. 



Bot., PI. Path., Agron., Ent. 769 (NC-ll) Coop. ARS 



Iowa Sweetclover Improvement . To (l) develop improved strains 



of diploid and tetraploid sweetclover through recombination of 

 inbred lines and/or selected plants maintained by clonal 

 propagation, (2) determine systems of breeding to utilize most 

 efficiently the inbred lines and selected plants in developing 

 superior strains, (3) investigate possibilities for utilizing 

 interspecific hybridization in Melilotus as a means to trans- 

 fer desirable genes to economic species, (4) determine systems 

 of self -incompatibility as related to problems of inbreeding, 

 and (5) evaluate autotetraploid sweetclover from agronomic 

 value and cytological and morphological characteristics. 

 Farm Crops, Bot., PI. Path. 1150 



