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Md. Evaluation of Fungicides for the Control of Diseases of 



Vegetable Crops . To (1) study effects of fungicidal materials 

 upon metabolic processes in cells of fungi and other organisms to 

 elucidate mechanisms of fungicidal action; (2) continue to test 

 performance of new fungicides and formulations, as they are available, 

 and compare with materials already used as to effectiveness in 

 controlling diseases of vegetables in Maryland; (3) attempt to 

 correlate laboratory findings with field performance; and (A) 

 devise and evaluate improved methods to apply fungicides to foliage 

 and seed of vegetables and to soils to control pathogens of those 

 crops • 



Agr. Engin. J-91 Coop. TEW-PHS 



Mass. Breeding Sweet Corn. Peppers and Field Tomatoes for Massachusetts . 

 Early types and varieties of sweet corn, peppers and field tomatoes 

 will be developed that are adapted to the climatic conditions found 

 in Massachusetts as well as sorts that may be resistant or immune to 

 certain insects and diseases that prevail there. 

 Hort. 86 



Mich. Microbiological Investigations of Vegetable Diseases . To 

 study (1) microflora associated with selected vegetable plant 

 pathogens with respect to inhibitory or synergistic action; (2) 

 effects of crops and chemical and biological additives to the soil 

 on soil-borne pathogens and associated microflora; (3) effects of 

 products of ndcrofial metabolism, including antibiotics, on 

 vegetable pathogens and host plants. 

 Bot. & PI. Path. 826 



Minn. Breeding Disease Resistant Vegetables . To (l) develop 



better varieties of muskmelons and watermelons and to work out 

 improved breeding methods where feasible; (2) obtain selections 

 of tomatoes resistant to mosaic, late blight and leaf diseases and 

 to study plants and diseases in relation to each other. 

 Hort. & PI. Path. 2126 



Minn. Radiation as a Tool in Horticultural Crop Breeding , (l) 

 Study mutagenic effectiveness of radiations upon several fruit 

 and vegetable plants with respect to dosage, conditions, and time 

 of radiation, and in relation to periods of growth, dormancy, and 

 rest periods of plants and seeds; (2) study effects of radiations 

 on subsequent development of plants and seeds; (3) produce mutations 

 useful to fruit and vegetable breeders. 

 Hort. 2127 Coop. ARS 



Minn. Epidemiology of Leaf Spots and Other Foliage Diseases of Crop 

 Plants. — IV. Potato. Tomato, and Truck Crop Diseases . To learn the 

 sources of inoculum of leaf diseases organisms and the effect of 

 environmental conditions on leaf diseases of potatoes and other 

 vegetables, principally tomatoes. 

 PI. Path. & Bot. 2219-A 



