138 Kansas Academy of Science. 



Brown Rot of Stone Fruits. Sclerotinia cinerea (Bon.) Schrot. This 

 disease was only reported on plums the past season, but no doubt it 

 occurred on cherries and peaches where there was a crop. Little twig 

 injury has ever been observed and cankers on peach are rare. 



Cherry Fruit Disease. Bacterial. Two reports came to the writer's 

 attention the past season, where a new cherry fruit trouble seemed to be 

 causing damage. The fruit showed indications of a bacterial infection, 

 being attacked when about half grown. The cultures obtained, however, 

 did not give positive results upon inoculation. Further work is neces- 

 cary to prove its real cause. 



Peach Leaf Curl. Exoascus defoy-mans (Berk.) Fckl. This was 

 present in very limited quantities the past season on the foliage of the 

 peach tree. In this state only the foliage is attacked. 



Red Cedar Blight. Phoma sp. This made its appearance in 1916 for 

 the first time in the cold frames of the nursery. Seedlings began dying 

 at the tips. The symptom was a regular blight and frequently involved 

 the entire seedling. 



WINTER INJURY TO PLANTS. 



As a whole, considerable winter injury occurred to evergreens and 

 deciduous trees over the state. It was particularly serious among the 

 cedars in many cases, and hedges and trees were severely injured. Later 

 in the season the plants outgrew this. The injury was prevalent in 

 many cases on the north or northwest exposure. 



Agricultural Experiment Station, Manhattan. 



Water Relations of Corn and the Sorghums. 



Edwin C. Miller. 



The statement that the sorghum plants produce a crop of both forage 

 and grain under conditions that are prohibitive to the growth and ma- 

 turity of the corn plant, needs no explanation to a Kansas audience. 

 That the sorghums have been one of the most potent factors in the 

 development of dry farming in the central and southern portion of the 

 great plains during the past fifteen years, is unquestionable. 



A knowledge of the characters that enable these plants to grow and 

 develop under the conditions of the great plains, would be of value to 

 those engaged in the breeding and development of plants for the semi- 

 arid regions. In view of these facts, a series of investigations have been 

 conducted during the past four years, in order to determine the funda- 

 mental characteristics possessed by the sorghum plants, which enable 

 them to withstand severe climatic conditions better than the corn plant. 

 These experiments were carried on at the State Branch Experiment Sta- 

 tion at Garden City. This station is well suited for an experiment of this 

 type, since the severity of the climatic conditions during the summer 

 months is exceeded little or not at all by any other point in the great 

 plains area. It is intended in this paper simply to summarize the re- 

 sults that have thus far been obtained in these experiments. 



