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Utah Breeding for Resistance to Curly Top of Tomatoes . (l) 



Produce commercially acceptable tomato varieties resistant to 

 curly top; (2) find or develop more resistance to curly top than 

 is now available; and develop a commerical tomato of more resistance. 

 Bot. & PI. Path. 330 Coop. ARS 



W. Va. Improvement of Tomato Varieties for West Virginia . To (l) 



select by extensive testing, tomato varieties with resistance to 

 late blight and other diseases, insects of unfavorable environ- 

 mental factors commonly found in W. Va.; (2) incorporate these 

 resistant characters into high yielding and high quality tomato 

 varieties adapted to the growing conditions of W. Va. by crossing, 

 backcrossing and selection, in both field and greenhouse; (3) 

 determine nature, variability and method of inheritance of 

 resistance to tomato diseases and to injuries by insects and 

 environmental factors; and (A) study pathogens for occurrence of 

 pathogenic races and study any phase of diseases fundamental to 

 program. 



Hort., PI. Path. 58 



Miscellaneous 



111. Rust Resistance in Asparagus . To develop methods of control 



of asparagus rust by fungicides and breeding, including (l) 

 reinvestigation of life history of the pathogen, host-pathogen 

 relations, artifical inoculation methods and use of eradicant and 

 summer sprays; and (2) selection of existing rust resistant strains 

 and their propagation, methods of securing lines homozygous for 

 rust resistance, and crossing these lines to secure superior hybrids. 

 Hort. 65-348 



111. Etiology. Epiphytology and Control of Asparagus Rust . Investigate 



(l) systemic spread of the pathogen within suscept tissues; (2) 

 possibility of existence of strains or races of the rust pathogen; 

 (3) eradicative and systemic fungicides in the greenhouse and in 

 the field. 



PI. Path., 68-3A8 



Iowa Sweet Corn Breeding . To (l) develop inbreds with special 



emphasis on combining ability and quality* (2) explore possibility 

 of using gene Sh? to increase quality; (3) test feasibility of 

 using monoploid derivatives for producing homozygous lines; (A) 

 develop European corn borer resistant or tolerant inbred lines; 

 and (5) breed for resistance to Heladnthosporium turcicum and 

 bacterial wilt and corn ear worm resistance. 

 Hort., PI. Path. 1186 Coop. ARS 



