FIELD CKOPS. 335 



3,100 lbs. of baj- per acre 7 weeks from the date of seeding, and EragrosUs 

 supcrha in 2 cuttings yielded a total of 5,700 lbs. per acre. " The frost cuts it 

 down in early winter." Phalaris commututa appeared frost resistant and a 

 strong grower. 



The Up-to-date, Carmen No. 1, and Grootvlei Gem potatoes yielded 98.34, 

 62.48, and 62.21 bu. per acre respectively. Yellow Cango and Brazilian White 

 corn produced the highest yields. 



Variety test of cotton and corn, 1910 (Georgia Sta. Circ. 66, pp. 2). — Among 

 33 varieties of cotton tested McElhanny Cleveland and J. R. Cleveland Im- 

 proved yielded 2,256 and 2,206 lbs. of seed cotton per acre respectively. Cov- 

 ington-Toole, I^ayton Improved, and Wannamaker Cleveland had lint percent- 

 ages of 3S.6 or more. Among 15 varieties of corn averaging 31.74 bu. per acre, 

 Wannamaker Marlboro and Sander Improved yielded 36.15 and 36 bu. per acre, 

 respectively. 



Barley culture in the Southern States, H. B. Derr (U. S. Dcpt. Agr., 

 Farmers'' Bui. -}27, pp. 16, figs. 6). — Discussions of the varieties of barley grown 

 in the South and the soils, fertilizers, and green manures adapted to the crop 

 are followed by directions for the preparation of the soil, sowing, fertilizing, 

 harvesting, thrashing, and the prevention of attacks of diseases and insects, and 

 data as to the uses of the crop and the opinion of Southern seedsmen and 

 farmers regarding it. 



The greater portion of nearly 200 varieties and selections of two and six- 

 rowed bearded and hull-less varieties failed to mature grain on the Arlington 

 Experimental Farm. Spring hooded barley sown broadcast in Tennessee on 

 river bottom land, February 1, at the rate of 1^ bu. per acre ripened May 15 

 and yielded 40 bu. per acre. The test of two and six-rowed spring and six- 

 rowed winter barleys previously noted (E. S. R., 6, p. 539) is also summarized. 



On clay soil, cowpeas and rye plowed under as green manures in addition to 

 barnyard manure and 200 lbs. of acid phosphate per acre have given excellent 

 yields with wheat, barley, and oats. At the North Carolina Station, sowing 

 December 6 has resulted in higher yields than at any earlier date, but at the 

 Tennessee Station sowing September 17 has been followed by higher yields 

 than sowings made on any of six later dates. At the Maryland Station and the 

 Arlington Farm, seeding October 1 has proved too late for the best results. 

 Data from the time-of-seeding test at the Virginia Station have already been 

 noted (E. S. R., 20, p. 932). 



A new awnless barley, H. B. Derr (Science, n. ser., 32 (1910), No. 823. pp. 

 473, Jfllf, fig. 1). — ^A true beardless or awnless barley has been produced by 

 selection among hydrids resulting from the crossing of Tennessee Winter and 

 white six-rowed barley (Hordeuin vulgare), and Black Arabian, a two-rowed 

 variety (H. distichum). 



In the third generation a form occurred in which the awns on the median 

 spikelets were from 3 to 4 in. long, while grains with short awns appeared in 

 some lateral spikelets. The short-awned rudimentai-y grains produced heads 

 like those from which they were secui-ed, except that on one plant most of the 

 lateral spikelets contained perfect short-awned kernels. From these short- 

 awned kernels was secured a plant which " contained heads upon which all of 

 the spikelets were fertile, the heads being 6-rowed, with large plump grains 

 without awns. ... Of the several hundred heads produced in 1910, 99 per 

 cent were of the awnless type." 



The progressive reduction of the awns and a persistence of the awnless con- 

 dition for 2 seasons, lead the author to believe that the type is fixed. He 

 proposes the name " hooded " barley for that which was formerly called 

 " beardless," and the restriction of the term " beardless " to the new hybrid. 



