Arizona Agricultural Experiment Station 433 



HORTICULTURE 

 !•". J. Ckider, a. F. KiNNisox, D. W. Albert 



Date : Culture and management of date orcliards with special reference to the 



improvement of the yield and quality of fruit and the rooting of offshoots 



(State). 

 Citrus investigations : Effect of cultural and environmental factors on tree 



growth and fruit production (Hatch and State). 

 Olive : Effect of different methods of orchard management and pruning upon 



the yield and size of the fruit; also sterility studies (Hatch). 

 Water requirements of fruits : As affected by pruning and special cultural 



metliods (State and Hatch) 

 rruning; Effect of different methods of pruning upon the growth, productivity, 



and the general welfare of trees (State and Hatch). 

 Walnut and pecan : Adaptation of cultivated varieties to propagation on native 



Juglans and Hicoria stocks with a consideration of environmental factors 



(State and Hatch). 

 Potato : Study of conditions affecting the production of potatoes in Arizona 



(State and Hatch). 

 Sweet Potato: Study of cultural and storage methods (State and Hatch). 

 Spinach: Study of spinach as a market garden crop for southern An,:ona 



(State). 

 Variety studies : Type and varietal adaptation of fruits, vegetables, shade trees, 

 shrubbery, flowers, and nursery stock (State). 



IRRIGATION 

 G. E. P. Smitu, W. E. Code. H. C. Schwalen 



A study of the relation of the evaporation rate to the duty of water and of the 



factors controlling evaporation (Adams). 

 Pumping machinery : A study to determine fundamental facts relating to the 



action and efficiency of various types (Adams). 

 Groundwater studies : Recharge, movements, losses, and rates of yield ; effects 



of transpiration; relation of yield to artesian pressure (Adams and State). 



PLANT BREEDING 

 W. E. Bryan, E. H. Pressley 

 Alfalfa: Breeding for yield and quality (Adams and State). 

 Bean: Biological analysis of genus Phascolus (Adams and State). 

 Wheat: (a) To produce a wheat w^hich will be productive and at the same 

 time maintain a high average of bread-making qualities under Arizona con- 

 ditions ; (b) to make a biological analysis of the unit characters of wheat 

 varieties (Adams and State). 



FINANCES 

 Table I following gives a complete statement of receipts and 

 disbursements for the College of Agriculture, including the Experi- 

 ment Station and the Agricultural Extension Service. It does not 

 include amounts spent by the Federal Department of Agriculture 

 in partial support of cooperative agricultural extension workers. 

 These items are shown in detail in the separate report of the 

 Extension Service. Table II shows receipts and expenditures for 

 the Agricultural Experiment Station as reported to the Director 

 of the Office of Experiment Stations of the United States Depart- 

 ment of Agriculture. Table III gives in detail the several appro- 

 priations by the State Legislature for the two years following the 

 year covered by this report. 



