36 



Wash. 



Symptoms and Effects of Fluoride Fumigation on Various 

 Ornamental and Crop Plants . To learn (1) and record photo- 

 graphically the sensitivity of forest, ornamental, vegetable, 

 and agronomic plants to small quantities of atmospheric fluo- 

 ride, (3) rate and extent of fluoride up-build in plants ex- 

 posed to fluoride-contaminated air, (k) fluoride content of 

 forest, horticultural, and agronomic plants grown in Spokane 

 area, and (5>) by terminal and/or radial growth studies if any 

 common fruit or ornamental tree species in Spokane area have 

 been adversely affected by fluoride from local industrial 

 operations. 



PI. Path. 11U3 (W-39) 



Wash. 



The Nature of Resistance to Fluoride Fumigation Found 

 Among Ponderosa Pine, Prunes, Apricots and Gladiolus . (1) 

 Correlate stomatal numbers, size, and position with reaction 

 of Pinus ponderosa , Prunus armeniaca , Prunus domestica , and 

 Gladiolus plants to fluoride fumigation^ ("2) Correlate 

 critical thickness, epidermal thickness and other morphological 

 features of given plants with reaction of those plants by 

 hydrogen fluoride. (3) Learn influence of 30 species of 

 Prunus root stock on response of h commercial prune varieties 

 and U commercial apricot varieties to fluoride fumigation. 



PI. Path. 1322 (W-39) 



Wyo. 



Drought Resistance Studies with Winter Wheat Seedlings . 

 Obtain selections of winter wheat exhibiting drought resist- 

 ance in seedling stage. Learn heritability percentage of same, 

 and potential of selected strains as possible new varieties or 

 improved selections of the variety Cheyenne. 



Agron. 603 



Ala. 



Calif. 



Plant Chemistry 



The Market Value of Peanuts as Affected by Changes in 

 Chemical and Physical Properties During Storage . To learn 

 (1) effects of storage on chemical, biochemical and physical 

 changes in peanuts; (2) relationship of initial quality of 

 peanuts to changes during storage; (3) relation of microflora 

 to respiration and associated deteriorative changes in pea- 

 nuts; and (h) relationship between chemical, biochemical and 

 physical properties and changes in odor, flavor and certain 

 nutritive factors affecting market value of peanuts. 



Bot., PI. Path. ^70 



The Chemical Constitution of Carbohydrates and the Mech- 

 anisms"" of Their Formation and Breakdown . To obtain information 

 on fundamental structure of the complex carbohydrates (chiefly 

 of plant origin) and biochemical mechanisms through which they 

 are formed and broken down. Carbohydrates to be included are: 

 sucrose, starch, inulin, galactans, pentosans, seaweed polysac- 

 charides, such as glucosan produced by crown-gall organism, etc. 



Biochem. 666 



