-59- 



P. R. Sugar Cane Breeding . To develop by hybridization new 



& superior varieties of sugar cane resistant to mosaic & other 

 diseases. 



Agron., Hort. 38 



P. R. Microbiological Studies on the Utilization of Molasses . 



(1) Search for new strains of microorganisms that better satisfy 

 needs of alcoholic, lactic, citric, & acetic fermentations. (2) 

 Produce new strains of yeasts to more efficiently carry out the 

 alcoholic fermentation. (3) Learn optimum conditions under which 

 microorganisms used for above-mentioned fermentations would carry 

 out desired transformations. (4) Establish correlations between 

 physiological activities of yeast cells & their microscope ap- 

 pearance. 



Rum Pilot Plant 57 



P. R. Marketing of Sugar in Puerto Rico . To determine (l) nature 



& importance of various items of expense incurred in marketing 

 sugar; & (2) influence of certain factors of organization & 

 operation upon efficiency of sugar marketing. 

 Agr. Econ. & Rur. Sociol. 75 



P. R. Effects of the Quota System. Surplus Allocation, and Price 



Control with Governmental Subsidy and Incentive Payments Upon 

 the Sugar Industry and the Economy of Puerto Rico . To measure 

 & appraise (1) effects of quota system, surplus allocation & 

 price control with governmental subsidy & incentive payments 

 upon supply, consumption, price, & gross income for sugar; 



(2) effects of sugar program in terms of concurrent changes in 

 farm enterprise combinations, market systems, & interrelations 

 of product & factor prices for sugar; & (3) impact of policies 

 on the economy at large. 



Agr. Econ. & Rur. Sociol. 84 (SM-14) Also see Part 2, Sec- 

 tion a. ) 

 P. R. Factors Affecting the Sucrose Content of Cane . To deter- 



mine (1) and statistically evaluate factors in sucrose content 

 of cane, and (2) possibility of controlling in a practical way 

 the sucrose content of cane. 

 Soils 91 



P. R. Transmission of the Chlorotic-Streak Virus of Sugarcane 



by Insects . (1) Find insect vector (s) of chlorotic-streak 

 virus of sugarcane. Study (2) relationship of virus to vector; 



(3) host range of virus among sugarcane varieties & related 

 plant species (in greenhouse); (4) degree of susceptibility 

 of cane varieties to streak virus under field conditions. (5) 

 Devise methods to control disease. 



PI. Path., Ent. 120 Coop. ARS 



