- 18 - 



Nebr. 



Breeding Potato Parental Lines for Resistance to Scab. Heat . 

 and/or Drouth , (1) Develop parental lines with a high degree 

 of homozygosity, for resistance to types of common scab occurring 

 in State combined with: red skin of tubers, pollen fertility, and 

 heat and drouth endurance,; (2) incorporate in breeding lines 

 desirable characters obtained from lines developed by breeders of 

 other States; (3) superior genes from other species into lines 

 developed in 1 and 2; (k) learn physiological or morphological 

 bases for heat and/or drought endurance and differences in metabolic 

 efficiency or different clonal lines of potatoes; (5) establish 

 techniques for increasing efficiency of breeding programs by 

 utilizing parents of greater homozygosity with proven combining 

 ability. 



Hort. 540 (NC-35) 



N. Y. Biochemical Studies for the Control of the Golden Nematode 



(Cornell) Disease of Potatoes . To investigate factors associated with hatching 



of golden nematode to obtain a means of controlling or eradicating 



the organism. 



Biochem. & Nutr., PI. Path. 72 



N.Y. Studies on the Control of Insects Attacking Potatoes . 



(Cornell) I. Control of Insects Attacking Potato Foliage; II. Control 



of Insects Attacking Potato Tubers; IV, Control of Insect Vectors 



of Potato Virus Diseases. 



PI. Path., Veg. Crops. Ent. 97 



N. Y. Virus Diseases of Potatoes. — 13. Biochemical Investigation 



(Cornell) of Potato Viruses . To determine (1) the fundamental properties 



of each potato virus; and (2) mechanism by which viruses are able 



to multiply and cause disease. 



PI. Path., Agr. Engin., Bot.& Physiol. 127-13 



N. Y. A Study of the Factors Affecting the Efficiency of Potato 



(Cornell) Spraying and Dusting . To find better materials and methods of 

 spraying potatoes. 

 PI. Path. 128 



N. Y. Permanent Improvement of the Potato by Plant Breeding Methods . 



(Cornell) To produce by plant breeding methods varieties resistant to black-spot 



leaf -roll, scab, blight, etc., which are horticulturally acceptable 



and adapted to Long Island conditions. 

 PI. Path. 130 Coop. ARS 



N. Y. Studies to Determine Causes and Control Measures for Sub- 



( Cornell) Surface Black Spot of Potatoes . To determine causes of black spot 

 and devise measures for its elimination or prevention. 

 Veg. Crops. 164 



