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Idaho Development of Field and Garden (Dry and Snap) Beans 



Resistant to Certain Virus Diseases. and a Study of the Viruses 

 Causing These Diseases . To (1) develop, through breeding, new 

 varieties of field and snap beans of acceptable quality, having 

 resistance to common mosaic, curly top, and other important bean 

 viruse diseases; and (2) conduct fundamental research on viruses 

 causing diseases of beans, as related to their properties, relation 

 to each other, and to expression under different environmental 

 conditions • 



PI. Path. 282 (W-12) Coop. ARS 



Idaho The Control of Root Rots of Peas and Beans with Special 

 Reference to Form Species of Fusarium Solani . (1) Learn if 

 micro-flora of the soil can be altered by crop rotations using 

 various crop sequences; (2) correlate changes in the micro-flora 

 of soil with the incidence of root rots of peas and beans caused 

 by Fusarium solani ; learn (3) value of chemotherapeutants in 

 control of root rot; (A) potential value of non-agricultural 

 species of peas and beans as breeding stock for development of 

 root-rot resistant varieties. 

 PI. Path. 339 



Maine Breeding of Blight and Anthracnose Resistant Varieties of 



Beans . To obtain through selection and/or hybridization suitable 

 market type snap and field beans resistant to halo blight 

 ( Pseud omonas phaseolicola ) and local strains of anthracnose 

 ( Collectotrichum lindemuthianum ) . 

 Hort. 17 



Mich. Evaluation of Peas for Horticultural Characters and 

 Resistance to Root Rots and Viruses . (1) Evaluate P. I. 

 accessions of Pisum sativum for horticultural characters; 



(2) effect a systematic program for evaluating P. I. accessions 

 of Pisum sativum for resistance to following: Aphanomyces root 

 rot (A. euteiches ). Fusarium root rot (F. sativum f . pisi ); 



(3) perpetuate disease-resistance accessions as they are 

 discovered and make preliminary crosses with locally adapted 

 strains and varieties under State support. 



PI. Path. 837 (NC-7) 



Miss. Investigation of Pea Diseases and Their Control . To (l) 



learn occurrence of major pea diseases in Mississippi and relative 

 importance; (2) investigate life cycles of major pathogens in 

 relation to culture of the crop and climate and learn if there 

 are effective control methods; (3) develop greenhouse and field 

 techniques for determination of resistance and susceptibility; 

 and (4) investigate seed stocks now available for resistant 

 varieties which may be incorporated into types found in this 

 region. 



PI. Path. Hl-10 



