138 EXPERIMENT STATION RECORD. 



Reports of the Deli Experiment Station at Medan, J. G. C. Vriens {Meded. 

 DeU-1'rocfstat. Medan, 3 (1909), No. 9, pp. 2S5-a.9J).— Cooperative fertilizer 

 experiments with tobacco carried on in different localities for several years in 

 succession are reported. 



Amons other results it was found that liglit applications of ammonium sul- 

 phate at the time of transplanting had a very beneficial effect. Tobacco ash 

 proved to be a very efficient potash fertilizer. Nitrate of potash was not always 

 effective as a source of nitrogen but as a source of potash, especially as a fac- 

 tor in the improvement of the burning quality, it gave good results. 



Supplement to "The Best Wheats," P. de Vilmorin {Supplement a ax Meil- 

 leids liU's. Paris, 1908, pp. //+0(S, pis. 27). — This book is a supplement to a 

 previous work entitled Les Meilleurs Bles, by Henry de Vilmorin. A classifi- 

 cation is given of all the varieties described in the 2 volumes. Brief notes on 

 the description and culture of the principal varieties of spring and winter 

 wheats are presented and the heads and grain of each variety are figured. 



[Culture and methods of breeding- wheat and oats and variety tests of 

 wheat, oats, and rye], B. W. Kilgore, J. L. Burgess, and F. T. Meacham {Bui. 

 N. C. Dept. Agr., 30 {1909), No. 8, pp. 35).— Data relating to the history and 

 statistics of wheat in the United States are presented and the adaptation of 

 wheat to cultivation in North Carolina outlined in so broad a way as to include 

 general directions for all small grains. Rotations and fertilizers are suggested 

 for the various soils and sections of the State. 



The wheat tests were chiefly to determine the varieties best suited to the 

 soils and climate of North Carolina. The Golden Chaff, Fanta Ray, and Fish- 

 headed produced the highest yields in 1906. Improved Amber, Bearded Ful- 

 caster, Golden Chaff, and Ultra were most satisfactory in 1907, while Bearded 

 Fulcaster, Guruis, and Red Wonder stood highest in 1908. Of 5 varieties that 

 have been tested during a period of 5 years the smooth-headed variety Golden 

 Chaff yielded the highest amount of grain and stood second in yield of straw. 

 It is well adapted to the red loam soils of the Piedmont section. During the 

 same period Bearded Fulcaster stood second in yield of grain and first in yield 

 of straw. No material difference has been obsei'ved in yield between the 

 bearded and the smooth varieties of wheat. 



In the work with oats the Red, Appier, and Burt have proved the highest 

 yielders. Fall sowing invariably outyielded spi'ing sowing of the same variety 

 and matured about the same time. Full-sown Appier oats yielded 15.38 bu. 

 per acre while the Red yielded 20.G bu. A comparative test of Culberson oats 

 planted in drills and in open furrows resulted in an increase of 2.7 bu. per 

 acre in favor of the open-furrow method. 



Three varieties of rye ranked as follows : Georgia, with a yield of 31.25 bu. 

 per acre, Albrnzzen No. 4343, with a yield of 16.66 bu., and Petkus No. 5058, 

 with a yield of 10.66 bu. 



Morphological changes in grain kernels under the influence of climatic 

 conditions, J. Raum {Zur Eenntnis der morpJwlogischen Verdnderungen der 

 Gefrridckonicr nnter dein Einflusse klimatiseher Verhdltnisse. Diss. K. Tech. 

 Hoclischvle Miincheti, 1906, pp. 137, pis. 6). — The experimental work forming 

 the basis of this thesis consisted of determinations of the weight, length, thick- 

 ness, and width of grains of oats, barley, wheat, and rye. The author's conclu- 

 sions are briefly summarized. 



Completely awnless varieties of oats were not found. The existence of 

 awns is considered a very important character in oats, although influenced by 

 climatic conditions and particularly by the rainfall. The weight of the grain 

 (hull and kernel) increased approximately 10 per cent with the presence of 

 the awn. 



