Volume 48 Number 4 Article 15 Pages: 240-244
Year 1994 Month 10
Title: Performance of Eight Strains of 'Rome Beauty' over Nine Years
Author: D.C. Ferree
Citation
Abstract:
Eight strains of 'Rome Beauty' were planted
in 1984 and evaluated over nine years for tree
size, growth, fruit size, color, shape, yield and
scarf skin.
Tree size of 'Barkley' tended to be
larger and 'Starkspur Taylor' smaller than most
of tne other strains. 'Starkspur Taylor' had more
leaves/spur than 'Stark Red Rome,' 'FlamespurJ
'Lawspur^ 'Spuree' and 'Starkspur Law.' 'Stark
spur Law' had smaller spur leaves and leaf area
per spur. 'Starkspur Law' tended to have the
most lateral flowers on one-year wood and
'Flamespur,' 'True Brite,' 'Lawspur' and 'Stark
Red Rome' the fewest.
On two-year wood,
'Barkley' and 'Stark Red Rome' had a greater
density of flower clusters than 'Flamespur,' 'True
Brite' and 'Lawspur,' which had the lowest den
sity. 'Lawspur' had a greater density of spurs on
two-year wood than any of the other strains.
'Startspur Taylor' had high early yields and one
of the highest cumulative yield efficiencies (yield
÷ trunk cross sectional area (TCA) due to its
small TCA. In years with heavy crops (1990 and
1992) 'Spuree' and 'Flamespur had high yields,
while 'True Brite,' 'Starkspur Taylor' and 'Stark
Red Rome' tended to have lower yields.
Fruit of
the following strains were consistently nearly
completely red: 'Flamespur' 'Lawspur,' 'Stark
spur Law' and 'Stark Red Rome'. 'Barkley,'
apuree' and 'Starkspur Taylor' had a lower
percentage of the fruit surface pigmented.
'Barkley' consistently produced larger fruit than
most or the other strains.
In 1988, severe scarf
skin occurred and 'Flamespur,' 'Lawspur,' 'Spuree'
and 'Starkspur Law* had lower levels or scarf
skin than other strains. 'Barkley' had high levels
of scarf skin most years.
True Brite,' 'Lawspur'
and 'Starkspur Law' had scarf skin levels below
the economic threshold all years except 1988.
Full text download: APS subscribers
ISHS members & pay-per-view
Download all articles in volume 48 number 4 (for APS subscribers only) (all PDF's in .tar archive format)
(PDF 680871 bytes)
Translate:
APS membership administration
ISHS membership administration
