SPRING CEREALS AT MOBO, OEEG. 21 



yield of Early Baart has exceeded that of Pacific Bluestem by 3 

 bushels, while the 3-year average yield exceeds that of the Blue- 

 stem by 4.5 bushels per acre. 



Karun. — Karun (C. I. No. 2200-1) is a rather dwarf and early- 

 maturing spring wheat, with beardless spikes (fig. 9, C), white, gla- 

 brous glumes, and midsized, hard, amber-colored kernels. In yield 

 it has ranked second among all the varieties of spring wheat grown 

 at the Moro substation during the 3-year period, 1913 to 1915, in- 

 clusive. It has exceeded the Pacific Bluestem in that period by 

 almost 5 bushels per acre. Karun resembles the Bluestem in its 

 beardless, glabrous spikes, but differs particularly in its shorter straw 

 and hard, amber-colored kernels. The original seed of Karun was 



Fig. 11. — Cross sections of loaves of bread made from standard hard spring wheat and from varieties of 

 spring wheat grown at the Moro substation. Left to right: Top row, standard, Marquis, and Bobs; 

 bottom row, Saumur, Karun, and Early Baart. 



obtained in Persia by the United States Department of Agriculture 

 in 1902. The variety is not grown commercially, but only on the 

 experimental plats. 



Koola. — Koola (C. I. No. 2203-2) is a selection from alow-growing 

 early variety of spring wheat, introduced into the United States from 

 Arabia by the United States Department of Agriculture in 1902. It 

 is a bearded variety (fig. 10, C), with white, glabrous glumes, and 

 large, red, soft kernels. It has been tested on experiment farms for 

 several years, but has never been distributed to growers. The Koola 

 variety has given the highest average acre yield of all the spring 

 wheats grown at the Eastern Oregon Dry-Farming Substation during 

 the 3-year period, 1913 to f915, inclusive. During that time it has 

 outyielded the Pacific Bluestem by 6.3 bushels per acre. It also 



