CLASSIFICATION" OF AMERICAN WHEAT VARIETIES. 107 



A wheat known locally as Lars Peterson grows fairly well in high altitudes 

 under dry-farming conditions. County agents think it fairly promising for 

 dry-land cultivation. 14 



Peterson wheat has been planted in this section of the country for the 

 past 25 years, but of late Bluestem spring wheat has been planted more 

 extensively. 15 



Distribution. — Grown in Navajo County, Ariz. 



Description. — Plant winter habit, late, midtall to tall ; stem usually white, 

 midstrong ; spike awnless, fusiform, middense to lax, inclined ; glumes glabrous, 

 brown, long, midwide, shoulders mid wide, usually oblique to square, sometimes 

 elevated ; beaks usually wide, obtuse, 1 mm. long ; apical awns several, those 

 below apex strongly incurved or recurved, 5 to 20 mm. long; kernels red, mid- 

 long, soft, ovate to elliptical ; germ small ; crease midwide, middeep ; cheeks 

 usually rounded ; brush small, midlong to long. 



Odessa is very winter hardy. It is distinguished from other varieties in 

 this group by its late maturity and its slender fusiform spike. Different 

 strains of Odessa vary widely, due in part to natural field hybridization. 

 Several white-kerneled strains have been selected from these natural hybrids, 

 one of which appears to be immune to bunt. Because of its winter resistance, 

 it often is used as one parent for crosses in breeding for greater winter resist- 

 ance. Minhardi and Minturki, winter-hardy varieties developed at the Minne- 

 sota Agricultural Experiment Station, are the result of a cross between Odessa 

 and Turkey. Spikes, glumes, and kernels of Odessa wheat are shown in 

 Plate XXVI, B. 



History. — According to Carleton (58, p. 53) Odessa is of Russian origin. 

 Several introductions have been made. The variety was grown in Minnesota as 

 early as 1865: 



The Odessa wheat is one of the importations of the United States Department 

 of Agriculture that is coming into notice and favor. It was started, says the 

 Lake City (Minn.) Leader, by Porter Martin, of Dakota County, four years ago, 

 from a small package of seed sent him by Hon. Ignatius Donnelly and has 

 been grown exclusively on his farm till this year, for the purpose of giving it 

 a reliable test (.5, p. 238). 



The variety was included among a number of wheats obtained by the Minne- 

 sota Agricultural Experiment Station in 1893 and 1894 from American consuls 

 and from seed dealers in Russia {J 09, p. 40). It is evident, however, that the 

 variety was quite widely grown in the United States before that time. A 

 variety known as Odessa was grown by the Wisconsin College of Agriculture 

 in 1875 (12). A sample of Odessa wheat obtained from the Black Sea region 

 was grown by the Colorado Agricultural Experiment Station in 1879 (^6, 

 p. 40). It also was reported to have been grown in Utah for 40 years, having 

 been taken there from the Eastern States by Mormon settlers, and in Cali- 

 fornia in the seventies and eighties, because of its resistance to rust in the 

 coastal areas. 



hint rib a turn. — Grown in California, Idaho, Illinois, Indiana, Iowa, Kansas, 

 Kentucky, Missouri, Nebraska, Tennessee, Utah, Wisconsin, and Wyoming. A 

 map Showing the distribution of Odessa wheat is presented as Figure 40. 



Synonym. — Grass. This was reported as a synonym for Odessa by Tracy 

 in 1880 {186, p. 396). A sample of Grass wheat nearly identical with Odessa 

 was obtained from W. E. Bass, of Stevensville, Mont, in 1918, who states that 



* Letter of Prof, w. v.. Bryan, CJnlverrtty of Arizona, Turaon, Ariz., Mar. 31, 1917. 

 ''Varietal Survey. Report of JameH L. Hall, Pinedale, Navajo County, Ariz., 1919. 



