OREGON. 223 



Griffin was appointed research assistant in plant pathology; and 

 IT. F. Wilson and V. I. Safro research assistants in entomology; 

 K. W. Rees succeeded C. C. Vincent as research assistant in horti- 

 culture, and C. C. Lamb was placed in charge of the station poultry 

 plant. H. J. Umberger was appointed superintendent of the dry- 

 farm substation at Moro. 



The State, which has thus far given no direct assistance to the 

 station, appropriates $7,500 annually for the maintenance of the 

 Eastern Oregon Experiment Station at Union, $3,000 annually, in 

 cooperation with this department, for the substation at Hermiston. 

 and $2,500 annually, also in cooperation with this department, for the 

 maintenance of the dry-fami station at Moro. During the year the 

 main part of the agricultural building was completed, at a cost of 

 $55,000. The agronomy wing of this structure was completed some 

 time ago, at a cost of about $35,000, and it is contemplated to con- 

 struct the horticultural wing during the coming year in order to 

 complete the building as originally planned. 



Progress was made on the different Adams-fund projects upon 

 which the station is at work. The project on the pollination of the 

 apple was continued and the work extended to cover both the apple 

 and the pear. In studying the affinities existing between varieties, 

 it was found that the pollen of particular varieties used on the pistils 

 of certain other sorts has an immediate detrimental effect on the 

 fruit, size being the character first affected. Tests were also made of 

 the sterility of varieties and of reciprocal crosses. Laboratory studies 

 were made on the development of the fiiiit bud, together with obser- 

 vations on the blossom, the female element, the embryo, the effect of 

 l^ollen on tissues immediately surrounding the seeds, the fruit and its 

 development, the vascular system of the fruit, etc. 



In the study of gummosis in the cherry, work was continued on 

 the isolation and verification of the organism causing the disease, 

 and apparently good progress in this direction was achieved. Ob- 

 servations on the suscei^tibility of varieties, the effect of stock, and 

 other factors were also made and methods of control were tested. 

 The life-history studies of the fungus causing apple-tree anthracnose 

 were continued and it is believed that in another season's work the 

 project may be brought to a close. 



Work on the irrigation project in the Rogue River Valley, which 

 is conducted on four different soil types and under other varying 

 conditions, made satisfactory progress. Investigations were con- 

 ducted on the downward course of the Avater used in irrigating 

 orchards, and on the influence of different amounts of water applied 

 with different frequency on the temperature of the soil and the gen- 

 eral condition of the tree, including vigor, disease resistance, bud and 

 wood growth, fruit production and quality, cell structure of leaf, 

 fruit and wood, and other factors of a like nature. 



