Pecan cultivars
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'Schley' (nut
photo) Seedling selection from nut planted
about 1881 by A. G. Delmas, at Scranton, Jackson County, MS. Once
thought to be from 'Stuart' seed, but isozymes negate that relationship
('Schley' has aa genotype for phosphoglucose isomerase, and bb
for malate dehydrogenase, while 'Stuart' is bb for the former
and ac for the latter). Named by Delmas in 1898 in honor of Admiral
Winfield Scott Schley, Commander of the U.S. Naval Forces in the
Spanish American War. First commercially propagated under the
name 'Admiral Schley' in 1902 by D. L. Pierson, Monticello, FL.
Nut: oblong with acute apex and base; assymetric;54 nuts/lb, 62%
kernel; kernels golden with narrow dorsal grooves. Protogynous,
with mid-season pollen shed and mid-season pistillate receptivity.
Long considered the standard of nut quality for the pecan industry.
Used extensively in breeding. Female parent of 'Sioux', 'Shawnee',
'Cherokee', 'Oconee', 'Woodroof' and 'Cape Fear'. Male parent
of 'Apache'. Susceptible to scab, black pecan aphid, and a trunk
disorder described as phomopsis canker. Recommended (1990) for
planting in AR.
LJ Grauke , Research Horticulturist & Curator
USDA-ARS Pecan Genetics
Route 2 Box 133
Somerville, TX 77879
tele: 409-272-1402
fax: 409-272-1401
e-mail:ljg@tamu.edu
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