6 CIRCULAR 682, U. S. DEPARTMENT OF AGRICULTURE 
about two-thirds as broad as long, taper to a sharp point, and have 
small fibers, fine texture, and good body. They have an upright 
habit of growth prior to topping and are fairly closely spaced on the 
stalk. The variety is adapted to the less productive and sandy loam 
soils of the Middle and Old Belts of North Carolina and Virginia, 
but not to the heavy and more fertile soils. On these latter the 
leaves are coarse and do not ripen uniformly. It is noted for pro- 
ducing bottom leaves of good size. 
Warne. —This is an old cutting variety and was grown until recent 
years in the Old Belt, where the bulk of the flue-cured wrappers is 
produced. The leaves are about half as broad as long, droop slightly, 
and are widely spaced on the stalk. It matures later than most flue- 
sare varieties and tends to produce an orange-colored leaf of heavy 
ody. 
400.'—Selected from a cross, supposedly of Harrison Special and 
Silk Leaf, this variety is resistant to black root rot (Thielaviopsis 
basicola (Berk. and Br.) Ferr.) under North Carolina conditions. 
The plants make rapid and vigorous growth, producing large, broad 
leaves with a blunt point. The leaves are thin and cure bright from 
the bottom to the top of the plant if allowed to ripen fully before 
being harvested. This variety is especially well adapted to the 
Middle and Old Belts of North Carolina and Virginia. It grows 
with a yellowish cast and is a heavy yielder of high-quality cigarette 
smoking tobacco. 
Of the four strains of the resistant cigar-wrapper type tested, only 
one (301) was used to introduce resistance into the flue-cured type. 
The other strains had objectionable characteristics, such as small 
leaf number, short internodes, short blunt leaves with large auricles, 
excessive sucker growth, and a splitting of the seed pods upon ma- 
turity, allowing the seed to shatter. 
801.—A cigar-wrapper strain highly resistant to black shank, 
developed from a cross of resistant Big Cuba with resistant Little 
Cuba.’ This is a fairly tall growing variety with a large number of 
leaves, which are very similar in shape to flue-cured tobacco, but only 
about half as large. They are rather widely spaced on the stalk and 
have small auricles. The stalk is rather small for the size of the plant. 
The variety is susceptible to both frogeye (Cercospora nicotianae Ell. 
and Ev.) and brown spot (Alternaria longipes (Ell. and Evy.) Tisdale 
and Wadkins). When flue-cured, this variety does not produce a 
bright color, nor does it possess the desired taste, aroma, texture, and 
body for flue-cured leaf. 
DEVELOPMENT OF RESISTANT STRAINS 
During the summer of 1932, 301 and other cigar-wrapper strains 
were crossed with Virginia Bright Leaf, White Stem Ormoco, Warne, 
and other flue-cured varieties. The F, plants were grown and sell- 
pollinated in the greenhouse during the following winter. Later, all 
of the crosses made at this time were discarded except 301 * Warne 
and Warne X 301, Virginia Bright Leaf X 301, and White Stem 
Orinoco X 301. 
1 Moss, E. G., and BULLOCK, J. F. TWO NEW VARIETIES OF FLUE-CURED TOBACCO, 400 AND 401. N.C. 
Agr. Expt. Sta. Bul. 337, 8 pp., illus. 1942. 
2 TISDALE, W. B. DEVELOPMENT OF STRAINS OF CIGAR WRAPPER TOBACCO RESISTANT TO BLACK SHANK. 
(PHYTOPHTHORA NICOTIANAE BREDA DE HANN). Fla. Agr. Expt. Sta. Bul. 226, 45 pp., illus. 1931. 
