PIELD CROPS. 137 



and the average weight per stalk was greater thau from the ordinary cane, 

 being 1.74 and 1.60 lbs., respectively. 



Tobacco mutations, II. K. Hayes {Jour. Heredity, 6 {1915), No. 2, pp. 73-78, 

 figs. 2). — This article briefly reviews work with the mutation tobacco known 

 as the Stewart Cuban, already noted (E. S. R., 30, p. 631). 



It is stated that on December 28, 1013, seed of this new tjije was planted in 

 the greenhouse, and transplanted to the field in the spring, where in September 

 the plants had attained a height of from 12 to 14 ft., had produced an average 

 of SO leaves per plant, and showed no sign of a blossom. They blossomed in 

 October in the greenhouse. The recurrence of other mutants of similar tyiies in 

 several fields in Connecticut is noted and discussed. 



Tobacco breeding' in Dalmatia, K. Peeissecker (Fachl. Mitt. Osterr. Tahak- 

 rcgie, 14 (1914), No. 1-2, pp. .^-^8, pis. 3, figs. 11).— This article gives results 

 of hybridization and selection of Dalmatian varieties of tobacco in the experi- 

 mental fields of Vrlika. Sinj, Imoski, Yinjane, Postranje, and Eunovitch, and 

 continues work previously noted (E. S. R., 27, p. 238). 



Report of cultural and variety tests with wheat, M. Nelson and L. W. 

 OsBOEN (Arkansas Sta. Bui. 121 {1915), pp. 3-31).— This bulletin briefly notes 

 the importance and need of improvement of wheat in Arkansas and gives re- 

 sults of cultural and variety tests that were begun in 1907 at the station. 



In weekly seedings from the fourth week of September to the first week of 

 November the best average results at Fayetteville, Ark., were obtained from 

 seeding the first part of October. An average difference in yield of 3.01 bu. 

 per acre with three varieties is noted in favor of drilling over broadcasting 

 wheat. The average of the different rates of seeding for the entire test indi- 

 cates approximately equal yields from either the 4-, 6-, or 8-pk. seedings. Six 

 pk. per acre is the quantity recommended for average conditions. Under the 

 usual conditions shallow (1 in.) covering of the wheat seed was found to be 

 more satisfactory than deep covering. 



The number of varieties tested during the several years ranged from 12 to 

 61 per year. The results indicate that " while the source of seed is not as 

 important as is the tj'pe or variety to be chosen, it would seem that preference 

 should be given to home-grown seed, providing a suitable variety can be se- 

 cured. Varieties obtained from sources having a climate similar to that of 

 Arkansas as a rule have given best satisfaction. 



" Results of variety tests indicate that early maturing soft winter varieties 

 yield well and produce the best market quality of grain under Arkansas condi- 

 tions. Red May and Alabama Bluestem are varieties of this type which have 

 proved satisfactory. Fulcaster and FuUz, though somewhat later in time of 

 maturity, have given good results. Other varieties of this same type which 

 have given general satisfaction are Kentucky Bluestem (a white wheat) and 

 Currell Prolific. 



" Varieties of hard winter wheat have not produced a uniform quality of 

 marketable grain, although the yield is frequently high." 



A preliminary report of a fertilizer test is also given. 



Spring wheat in the Great Plains area: Relation of cultural methods to 

 production, E. C. Chilcott, J. S. Cole, and W. W. Buke {U. S. Dept. Agr. Bui. 

 214 {1915), pp. 43, fig. 1). — The study of the yields obtained under various 

 methods of seed bed preparation in the Great Plains region as here presented 

 deals only with spring wheat and is made in such a way as to show the effect 

 ol cropping and cultivation in only the year preceding its growth. There is also 

 given a study of the comparative cost of production of wheat under each of the 

 methods studied and the resulting profit or loss. 



