. Usually all the spike- lets of a head and all the heads of the affected plant are smutted. There is considerable difference in the resistance of- fered by different va- rieties, but in view of the perfect protection afforded by proper treatment this is of little significance. The damage caused by smut is usually underrated. In 1884 Arthur 1 in New York by actual count found the oat smut to con- stitute from to 10 per cent of the ordi- nary crop. By actual count of nearly 11,000 heads Plumb ^ in 1886 determined the amount of smut to be per cent; in some fields he found as high as 20,
. Usually all the spike- lets of a head and all the heads of the affected plant are smutted. There is considerable difference in the resistance of- fered by different va- rieties, but in view of the perfect protection afforded by proper treatment this is of little significance. The damage caused by smut is usually underrated. In 1884 Arthur 1 in New York by actual count found the oat smut to con- stitute from to 10 per cent of the ordi- nary crop. By actual count of nearly 11,000 heads Plumb ^ in 1886 determined the amount of smut to be per cent; in some fields he found as high as 20, 28, and even 30 per cent. Kellerman and Swingle,^ counting smutted heads 1 Arthur, J. C, (Geneva) Agr. Exp. Sta. Rpt. 3, p. 382, 1884. ^ Plumb, C. S., (Geneva) Agr. Exp. Sta. Rpt. 5. 3 Kellerman, W. A., and Swingle, W. T., Kans. Agr. Exp. Sta. Rpt., p. 213, 1889. -Smut {Usiilayo aveiicc) After Jackson.
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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910
