- 51 - 



Kans. 



Mo. 



Developing and Testing Pasture-Type Alfalfas , (l) Eval- 

 uate various alfalfas, including foreign introductions, as to 

 their ability to persist and survive under the extreme climatic 

 and management practices that prevail on the range. (2) Develop, 

 from the best strains, throu^ selection and breeding, adapted 

 high yielding, disease- and insect-resistant varieties. (3) 

 Study the behavior of pasture-type alfalfas under different 

 management practices and soil and climatic conditions. (4) 

 Conduct uniform variety yield trials involving pasture tjrpes. 



Agron. 473, Coop. USDA 



Testing of Alfalfa Strains . To improve alfalfa in yield, 

 quality, and resistance to disease, throu^ selective testing 

 of varietal strains. 



Field Crops 241 



Nev. 



N. Y. 

 (Cornell) 



Okla. 



Pa. 



Alfalfa Production. Breeding. Disease, and Quality 

 Investigations . To (l) search for and perpetuate for use in 

 breeding program alfalfa plants that are resistant to parasitic 

 organisms which damage alfalfa; (2) develop, by breeding, a 

 variety of alfalfa that vd.ll be resistant to disease organisms 

 which attack alfalfa; (3) determine adaptation of newly 

 developed varieties to different environmental conditions; and 

 (4) determine influence of management on productivity and 

 length of life of stands of newly developed alfalfa varieties. 



Agron. 75, Coop. ARS 



Diseases of Forage Crops. — 1. Bacterial Wilt of Alfalfa . 

 To determine severity of said disease. 

 PI. Path., Agron. 135-1 



Breeding to Improve Alfalfa for Pasture and Hay . To develop 

 types of alfalfa suitable for pasture under Oklahoma conditions; 

 and (2) improve production and quality of Oklahoma hay-type 

 alfalfas , 



Agron., Bot., PI. Path, 832, Coop. ARS 



Movement of Corynebacterium Insidiosvim Within the Alfalfa 

 Plant. To (l) determine processes by which bacterial wilt 

 organism moves from point of superficial inoculation to 

 vascular system of an alfalfa plant; (2) study mode of pene- 

 tration and tissue groups of vascular system invaded by 

 bacterium; (3) study manner of lateral spread of pathogen 

 through vascular system; (4) determine nature of gummous 

 exudate produced by infected plants; and (5) study pathological 

 cytology of disease tissue. 



Bot., PI. Path. 1240-B 



