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Va. Breeding Tobacco for Disease Resistance * To (l) 



develop through breeding and selection, hi^ yielding and 

 quality strains of flue-cured, fire-cured and bur ley 

 tobacco resistant to the major tobacco diseases, including 

 black shank, Granville wilt, mosaic, root knot, root rot, 

 and the nematode-root rot complexes, with attempt made to 

 incorporate blue mold resistance into the best strains, and 

 in the case of burley, to also include wildfire resistance; 

 and (2) determine genetic behavior of resistance in tobacco 

 to several diseases iinder investigation in order to predict 

 possibilities from breeding with a high degree of certainty, 

 PI. Path., PI, Physiol., Agron. 86OI8 



FORAO, TURF, AND COVER CROPS 



General 



Ala. Breeding of Sericea Lespedeza. Crimson Clover and 



Vetch . To (1) develop improved variety of sericea that is 

 more palatable, more nutritious, disease-resistant and 

 higher yielding; (2) develop higher yielding, more disease- 

 resistant, non-shattering, hard-seeded variety of xirimson 

 clover producing earlier fall grazing; (3) develop vetch 

 capable of producing high yields of green matter and seed; 

 and (4) determine which varieties of certain legumes now 

 available are best adapted as green manure crops for general 

 use in the state. 



Agron., Soils 404 



Ark. The Control of Diseases of Forage Legumes and Grasses . 



To (1) determine distribution and identity of plant diseases 

 on forage and pasture crops; (2) determine host range of 

 certain parasitic diseases on forage and pasture crops in 

 order that a sound approach may be made on investigations 

 involving rotation as well as other meant> of control; and 

 (3) investigate means of control by: seed treatment, cultural 

 practices, applications of fertilizers, testing varietal 

 resistance, and developing disease resistant varieties. 

 PI. Path. 384 



Fla. Forage and Pasture Grass Improvement . To develop more 



desirable forage and pasture types of grasses resistant to 

 important diseases. 



Agron. 298, Coop. ARS 



