-45- 



III. TOBACCO 



Calif. An Investigation of the Mechanism of Tobacco Mosaic Virus 

 Reproduction . To learn more about intimate details of plant 

 virus reproduction. 

 Bot. 1664 



Conn. 



Conn. 



Chemical Appraisal of the Market Grades of Tobacco and 

 of the Changes that Occur in the Curing and Fermentation Processes . 

 To establish objective methods of defining quality of tobacco used 

 for wrappers & binder; to extend previous basic research in chem- 

 istry of curing tobacco; to reduce these results to practice in 

 the marketing of tobacco. 



Biochem. 204 



Enzyme Catalyzed Changes in the Curing of Tobacco and 

 the Relation of These Changes to Quality and Thus to Market 

 Value . (1) Study enzymatic reactions occurring in green leaves , 

 to isolate & purify enzymes bringing about these reactions, & 

 to study the role enzymes play in metabolism of the leaf. 



Biochem. 205 



Conn. 



Conn. 



Components of Cigar Tobacco Leaf Which Contribute to Mar- 

 ket Quality, in Particular to Odor . (1) If possible, identify 

 chemically substances in fermented tobacco which give its char- 

 acteristic odor. (2) Study manner in which these substances 

 arise & how the quantity present can be altered or controlled. 



Biochem., PI. Path. 206 



Interspecific Hybridization in Nicotiana . (l) Further 

 genetic, cytolological, & biometrical studies of variegation 

 phenomenon so as to elucidate mechanisms involved in the in- 

 stability of gene action. (2) Try to develop blue mold & black 

 rootrot resistant lines of Connecticut Shade, Havana Seed, & 

 Broadleaf tobaccos; learn fundamental information on the mech- 

 anism of transfer of heritable disease resistance from species 

 to species. 



Genet. 506 



Conn. 



Curing and Fermentation of Cigar Wrapper and Binder To- 

 bacco . To determine which chemical reactions in curing and 

 fermentation processes lead to high quality in cigar tobacco 

 and to promote these reactions by controlled curing and fer- 

 mentation so as to produce leaves of higher and more uniform 

 quality. 



PI. Path., Bot., Biochem. 646 



