672 EXPERIMENT STATION RECORD. 



Michigan Bronze and Red King, l)()th liable to rust, were crossed with Rivet, which 

 is practically immune. The following year the liyhrids were severely attacked by 

 rust and the grain produced was badly shriveled. From the seed of the Rivet and 

 Red King cross 260 plants were grown, of whicli on June 15, 78 were free from dis- 

 ease, 118 slightly infected, and 64 badly attacked. June 29, when the epidemic 

 seemed at its height, 64 i)lants were still uninfected and 195 were diseased. 



These data lead the author to believe that tlie susceptil)ility of wheat to rust 

 attacks is a Mendelian character. 



Culture of wheat on the experimental fields of Grignon in 1902, P. P. 

 Dehkk.mn and C. Dupont {Compt. Rend. Acad. Sci. Paris, 135 {1902), No. 17, pp. 654- 

 657). — The yields of small and large grains of a number of varieties of wheat were in 

 all cases in favor of the large grains, but a large difference in yield was obtained only 

 when there was a marked difference in the weight of the grains. 



It was found in connection with this experiment that wheat lodged but not lying 

 fiat upon the ground ripened well and was equal in yield and quality to standing 

 grain. A tield on which fertilizers had been applied to the rows of beets was com- 

 pared to a tield upon Avhich the fertilizer application had been uniformly spread. 

 Early in the season the wheat following the beets was uneven in growth, being more 

 luxuriant on the old beet rows, but later on this unevenness was effaced and the yield 

 in grain and straw was slightly in favor of this field. 



HORTICULTURE. 



Influence of lime upon plant growth, H. J. Wheeler and G. E. Adams {Rhode 

 Island Sla. Bid. 96, pp. '23-44, pi- 1, fig- 1). — A summary is given of the growth of a 

 number of vegetables, flowers, small fruits, and trees planted on the acid soils at the 

 station and fertilized with sulphate of ammonia or nitrate of soda, and either limed 

 or left unlimed. 



It was found that Lima beans grew well on a soil wliich was so acid as to entirely 

 destroy lettuce, spinach, beets, onions, asparagus, muskmelons, and some other plants. 

 The use of lime for these beans was found distinctly disadvantageous. Nitrate of 

 soda and sulphate of ammonia were apparently equally effective with this crop. 

 Pumpkins, squashes, asparagus, and rhubarb were all greatly benefited by liming, 

 and in every case with these plants nitrate of soda proved more beneficial as a fertil- 

 izer than sulphate of ammonia. Fay and White Dutch currants were greatly helped 

 by liming, as was also the Cuthbert raspberry. With the currants greater yields were 

 obtained by the use of nitrate of soda than W'ith sulphate of ammonia; but with the 

 Cuthbert raspberry liming in connection with sulphate of ammonia gave better results 

 on the whole than liming with nitrate of soda. 



With the Ohio blackcap raspberry liming, with eitlier nitrate of soda or sulphate 

 of ammonia, appeared to be injurious. The results secured in liming the Snyder 

 blackberry were conflicting; in some instances the yield was heavier on the limed 

 soil and again upon the unlimed soil. The average results for 3 years favored the 

 limed soil which received sulphate of ammonia. The blackberry, however, appears 

 to thrive very well on acid soil. The yield of grapes appeared to be increased by 

 liming on the sulphate of ammonia plat, but w-as not beneficial on the nitrate of soda 

 plat. In both cases, however, liming appeared to increase the growth of the vines. 

 The American Bell cranberr}'^ was positively injured by liming, and grew best where 

 beets and onions failed. Acid soil seems to be best for this plant. 



With flowers the poppy especially was greatly benefited by liming, as was also 

 the pansy. In both cases, too, the best results were secured on tlie limed nitrate of 

 soda plats as compared with the limed sulphate of ammonia plats. Zinnias were also 

 benefited by liming on the nitrate of soda plat, but liming in connection with sulphate 

 of ammonia did not prove helpful. The zinnias grew well on a soil so acid as to kill 

 poppies. 



