EXPERIMENTS WITH KHERSON AND SIXTY-DAY OATS. 3 



ment, the name "Kherson" was given to it. Seed of the Sixty- 

 Day variety was received by the Office of Foreign Seed and Plant 

 Introduction of the Bureau of Plant Industry ^ on March 6, 1901, 

 from Dr. S. de Mrozinski, of Proskurov, in the Podolia Government 

 of Russia, This province is adjacent to and just west of the Kherson 

 Government, and has essentially the same climatic and soil conditions. 

 Both these varieties have been widely distributed in the United States, 

 though probably the Sixty-Day is most widely grown. The origin 

 of the Kherson oat is not definitely known. The Sixty-Day is said 

 to have been originated by Dr. Mrozinski, but no information is at 

 hand regarding the source of the material from which he made his 

 selection. It is very probable, however, that the Kherson is from the 



Fig. 1. — A field of sixty-day oats in shock near Dickinson, N. Dak. 



same original stock, as the two varieties are practically identical in 

 every way and were obtained from adjoining provinces. A field of 

 Sixty-Day oats in shock near Dickinson, N. Dak., is shown in figure 1. 

 A brief account of the section of Russia from which these vari- 

 eties were obtained will be of value for comparison with soil and 

 climatic conditions in the United States. As is pointed out in the 

 following quotation from Carleton (9, pp. 8, 9), the Russian grain- 

 producing region, of wliich the Kherson and Podolia Governments 



1 "S. p. I. No. 5938, Avcna saliva. From Proskurow, Russia. Received through Dr. S. de Mrozinski 

 March 6, 1901. Sixty-Day, originated by Dr. Mrozinski. " (47, p. 44.) 



An earlier importation from Dr. Mrozinski was unnamed, but undoubtedly is identical with the Sixty- 

 Day. It was grown at a few agricultural experiment stations under the name of "Seventy-flve Day," but 

 was not widely distributed and soon became merged with the introduction just mentioned. The exact 

 date when this importation was made is not stated in the record, but it was about June 1, 1900. The record 

 is as follows: 



" 51(iS. Avena sativa. From Proskurow, Russia. Presented by Dr. S. de Mrozinski. An 

 early variety wMch ripens within 75 days from the seed." (46, p. 57.) 



