636 EXPERIMENT STATION RECORD. [Vol 40 



Two important varieties of winter wheat, E. F. Gaines {Washington Sta. 

 Popular Bui. 116 {1919), pp. 7, fig. 1).— As an average of 11 years, Hybrid 128 

 winter wheaf has produced 43.3 and Red Russian 3S.8 bu. per acre. The first 

 named variety is said to test 1.8 lbs. heavier, to have a higher market value, 

 to mature 5 days earlier, and to shatter less than the latter. Tests made 

 during 1916 and 1917 indicated that Hybrid 128 is much better adapted to 

 early seeding and controls wild oats fully as well as Red Russian. It is 

 estimated that the average difference between the two sorts, in yield and 

 price together, would amount to $12.32 per acre annually, based on Government 

 prices In 1918. 



Hybridization studies with winter wheat, B. Ka.ianus {Bot. Notiser, Xo. 

 5 {1918), pp. 255-244). — The author presents a preliminary note on 22 arti- 

 ficial crosses with 17 so-called pure linos representing different types of wheat, 

 observations having been made up to the fifth generation on the form, inter- 

 nodal length, awning, hairiness and color of spike, number of spikelets, form 

 and keeling of outer glumes, inner glumes, number and color of seed, internal 

 structure of the stem, and the color of the leaf auricles. 



It is concluded that the results justify a grouping of the different forms 

 of wheat into an emmer series, including dicoccum. durum, polonicum, and 

 turgidum, and a spelt series including spclta, vuUwre, and compactum. 



Concerning a cross between two types of spring wheat, B. Ka.iams {Bot. 

 Notiser, No. 5 {1918), pp. 245-247). — The author describes a cross between an 

 awned type of wheat, designated as Mazuolo and employed as the male parent, 

 possessing smooth, yellow spikes, red grain, and markedly red auricles at the 

 base of the leaves, and an unawned variety from Svaliif known as Pearl and 

 characterized by smooth, yellow spikes, red grain, and white to reddish leaf 

 auricles. In the F» generation awning behaved as a recessive unit character 

 and the red color of the leaf auricle as a dominant unit character, resulting 

 in a 3: 1 ratio in each case. 



Spring wheats in Wyoming, T. S. Farsons [Wyoming $ta. Bui. 119 {1918), 

 pp. 29-50, figs. 2). — This bulletin describes work with spring wheat grown 

 under Irrigation for the period of 1911 to L915, inclusive, embracing variety 

 tests, comparisons of home grown and Imported seed, ami observations on the 

 effect of barnyard manure. The principal varieties grown in the tests are 

 briefly described and notes presented on spring wheat production in the State, 

 including information regarding seed treatment for smut prevention. 



Marquis, Kubanka, Minnesota 163, and Minnesota 160 are said to have been 

 the highest yielding varieties, while Douglas, John Brown. Regenerated De- 

 fiance, and Colorado No. 50 were the earliest maturing sorts. The average yield 

 for all home grown varieties was 40.1 bu. per acre, and for all Imported varieties 

 39.9 bu., while the number of days from seeding to harvest was practically the 

 same. Little difference was observed between home grown and imported seed 

 of the same variety providing the imported seed was northern grown. 



The use of barnyard manure for 4 years resulted In an average yield of 51 bu. 

 per acre for all varieties on the experiment station farm as compared with 27.7 

 bu. in 1911. Equally good results were obtained whether the manure was 

 plowed under or applied as a top-dressing to plowed land and disked in. 



Based on one year's results, thorough preps ration of the seedbed and late 

 seeding appeared to give better results than early seeding. Wheal sown May 7 

 required 33 days less to mature than that sown April .">. From Ma\ 1 to 10 is 

 deemed the best time to sow spring wheat under local conditions. It is recom- 

 mended that the first irrigation be deferred as Ion- as possible. 



Grain distributed from the station, which is located at an altitude of 7,200 

 ft., is said to have given good results at lower altitudes. 



