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Small Fruits 



Ark, The Identification, Epidemiology, aiid Control of Plant- 



Borne Pathogens of Strawberry , (1; Identify various components 

 of virus complex occurring in Arkansas strawberry plantings; 



(2) study methods of producing disease free plants with view of 

 improving and simplifying existing procedures; (3) learn 

 importance of virus diseases to production of berries; (4) study 

 movement and spread of viruses into virus-free plantings; (5) 

 study relationships of other plant-borne pathogens to virus-free 

 plant production program; (6) develop disease resistart varieties 

 for local commercial requirements through hybridization and 

 selection. 



PI. Path. 412 



Calif . The Nature of and Predisposing Factors for "Wetness" of 



Table Grapes and the Relationship of This Condition to Market 

 Quality . To (1) specify what wetness is; (2) determine 

 significance of moisture of condensation in relation to wetness; 



(3) determine role of condensed moisture in predisposing the 

 fruit to decay; (4) determine significance of berry juice in 

 relation to wetness; (5) evaluate relationship of rough handling 

 to berry injury in terms of amount of wetness; (6) determine 

 relationship between wetness from injury and decay incidence; 

 (7) determine if use of excessive amounts of SO2 for fumigation 

 predisposes fruit to wetness; (8) determine significance of micro- 

 scopic injuries such as insect punctures in relation to wetness; 

 (9) learn changes in permeability of the skin to juice during 

 stages of senescence of fruit during storage; (10) learn if wetness 

 is correlated with maturity of fruit when harvested; and (ll) 



learn influence of different degrees and types of wetness upon market 

 quality of fruit as. indicated by wholesale and retail prices, 

 Agr. Econ., Hort., PI. Path. ES 456 Coop, ARS 



111. Investigation of Red Stele Root Rot of Strawberry , (l) Study 



etiology of red stele disease; (2) learn how many strains of red 

 stele pathogen are present in State; (3) study its control by use 

 of chemicals; (4) cooperate with Mr, Chester Zych of Horticulture 

 Department in an evaluation of red stele resistance in his straw- 

 berry breeding and evaluate any new varieties developed in other 

 areas under State conditions, 

 PI. Path. 68-378 



Maine The Biology of Low- Bush Blueberry Soils , To investigate the 

 influence of various soil-inhabiting organisms on the blueberry 

 plant and effect of cultural practices on soil-inhabiting organisms, 

 PI, Path,, Agron, 51 



