PEAR		Descriptor Site(s): PGRC
------

Contains characteristic data on Pyrus (Pear) accessions.
Contact Ms.Margie Luffman, Curator, Canadian Clonal
Genebank, (519)738-2251 fax(519)738-2929 luffmanm@em.agr.ca

Descriptor: BARKOTHER     obtype: CHAR    CGC: YES

SECONDARY BARK CHARACTERISTICS

Code          Definition
----          ----------
1             PROMINENT LENTICELS
2             EXFOLIATING


Descriptor: BLOOMDENS     obtype: CHAR    CGC: YES

BLOOM DENSITY

Code          Definition
----          ----------
1             LOW
2             (1 = LOW,  9 = HIGH)
3             (1 = LOW,  9 = HIGH)
4             (1 = LOW,  9 = HIGH)
5             (1 = LOW,  9 = HIGH)
6             (1 = LOW,  9 = HIGH)
7             (1 = LOW,  9 = HIGH)
8             (1 = LOW,  9 = HIGH)
9             HIGH


Descriptor: BLSTRMITES     obtype: CHAR    CGC: YES

RATING OF DAMAGE CAUSED BY BLISTER MITES

Code          Definition
----          ----------
1             NO DAMAGE
2             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
3             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
4             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
5             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
6             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
7             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
8             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
9             SEVERE DAMAGE


Descriptor: BRANANG1     obtype: NUMERIC    CGC: YES

LOWER LIMIT OF TYPICAL BRANCH ANGLE IN DEGREES


Descriptor: BRANANG2     obtype: NUMERIC    CGC: YES

UPPER LIMIT OF TYPICAL BRANCH ANGLE IN DEGREES


Descriptor: BRANCHDENS     obtype: CHAR    CGC: YES

DENSITY OF BRANCHING

Code          Definition
----          ----------
1             OPEN
2             INTERMEDIATE
3             DENSE


Descriptor: BRANCHSTIF     obtype: CHAR    CGC: YES

PHYSICAL (N.N. VISUAL) STIFFNESS OF BRANCHES

Code          Definition
----          ----------
1             FLEXIBLE
2             INTERMEDIATE
3             VERY STIFF


Descriptor: BRKTEXTURE     obtype: CHAR    CGC: YES

TEXTURE OF THE BARK

Code          Definition
----          ----------
1             PLATED
2             SMOOTH
3             SLIGHTLY FURROWED
4             FURROWED
5             DEEPLY FURROWED


Descriptor: BUDKILL1     obtype: NUMERIC    CGC: YES

MAXIMUM TEMPERATURE (DEGREES F) AT WHICH 50% OR MORE OF
BUDS WHERE KILLED (TESTED AT 5 DEGREE INTERVALS).


Descriptor: BUDKILL2     obtype: NUMERIC    CGC: YES

MAXIMUM TEMPERATURE (DEGREES F) AT WHICH 50% OR MORE OF
THE BUDS WERE KILLED (TESTED AT 5 DEGREE INTERVALS.


Descriptor: BUDKILL3     obtype: NUMERIC    CGC: YES

HIGHEST TEMPERATURE (DEGREES F) AT WHICH 50% OR MORE OF
THE FLOWER BUDS WERE KILLED. (TESTED AT 5 DEGREE INTERVALS).


Descriptor: CALYX     obtype: CHAR    CGC: YES

CALYX

Code          Definition
----          ----------
D             DECIDUOUS
P             PERSISTANT


Descriptor: CALYXBASIN     obtype: CHAR    CGC: YES

CALYX BASIN

Code          Definition
----          ----------
AD            ACUTE DEEP
AM            ACUTE MEDIUM
AS            ACUTE SHALLOW
N             NONE
OD            OBTUSE DEEP
OM            OBTUSE MEDIUM
OS            OBTUSE SHALLOW


Descriptor: CARPELNUM     obtype: NUMERIC    CGC: YES

NUMBER OF CARPELS


Descriptor: CAVITY     obtype: CHAR    CGC: YES

CAVITY

Code          Definition
----          ----------
AD            ACUTE DEEP
AM            ACUTE MEDIUM
AS            ACUTE SHALLOW
N             NONE
OD            OBTUSE DEEP
OM            OBTUSE MEDIUM
OS            OBTUSE SHALLOW


Descriptor: CENTLEADER     obtype: CHAR    CGC: YES

DOMINANCE OR PERSISTENCE OF THE CENTRAL LEADER

Code          Definition
----          ----------
1             WEAK
2             MODERATE
3             STRONG


Descriptor: CHILLUNITS     obtype: NUMERIC    CGC: YES

THE CHILLING UNITS REQUIRED TO BREAK DORMANCY


Descriptor: COMMENT1     obtype: CHAR    CGC: YES

GENERAL COMMENTS ABOUT THE ACCESSION


Descriptor: COMMENT1HD     obtype: CHAR    CGC: YES

COMMENTS OR EXPLANATIONS OF DATA FROM LATE FALL COLD
HARDINESS STUDIES.


Descriptor: COMMENT2HD     obtype: CHAR    CGC: YES

ANY COMMENTS OR EXPLANATIONS OF DATA RESULTING FROM
MID-WINTER COLD HARDINESS TESTS.


Descriptor: COMMENT3HD     obtype: CHAR    CGC: YES

COMMENTS OR EXPLANATIONS OF DATA FROM THE THIRD (LATE
WINTER/EARLY SPRING) COLD HARDINESS TESTS.


Descriptor: CORE     obtype: CHAR    CGC: YES

A flag to indicate the accession is part of the core subset

Code          Definition
----          ----------
Y             YES, THE ACCESSION IS PART OF THE CORE COLLECTION


Descriptor: COREBREAK     obtype: CHAR    CGC: YES

DEGREE OF CORE BREAKDOWN, DETERMINED ON TREE RIPENED FRUIT

Code          Definition
----          ----------
1             NONE
9             SEVERE


Descriptor: DOTS     obtype: CHAR    CGC: YES

DOTS

Code          Definition
----          ----------
C             CONSPICUOUS
O             OBSCURE


Descriptor: FIRSTBLOOM     obtype: NUMERIC    CGC: YES

JULIAN DATE OF FIRST BLOOM


Descriptor: FIRSTCALUS     obtype: NUMERIC    CGC: YES

MINIMUM TEMPERATURE (DEGREES F) AT WHICH CALLUS TISSUE WAS
FORMED FOLLOWING LATE FALL COLD HARDINESS TEST (TESTED AT
5 DEGREE INTERVALS).


Descriptor: FIRSTRIPE     obtype: NUMERIC    CGC: YES

JULIAN DATE OF FIRST RIPE FRUIT


Descriptor: FLAVOR     obtype: CHAR    CGC: YES

FLAVOR OF FRUIT FLESH

Code          Definition
----          ----------
A             ACID
B             BLAND
I             INSIPID
M             MUSTY
P             SPICY
R             AROMATIC
S             SWEET
T             ASTRINGENT


Descriptor: FLESHCOLOR     obtype: CHAR    CGC: YES

FLESH COLOR

Code          Definition
----          ----------
B             BROWN
C             CREAM
G             GREEN
W             WHITE
Y             YELLOW


Descriptor: FLESHCOMM     obtype: CHAR    CGC: YES

COMMENTS ON THE FRUIT FLESH


Descriptor: FLESHTEXT     obtype: CHAR    CGC: YES

FLESH TEXTURE

Code          Definition
----          ----------
1             FINE
2             (1 = FINE,  9 = COARSE)
3             (1 = FINE,  9 = COARSE)
4             (1 = FINE,  9 = COARSE)
5             (1 = FINE,  9 = COARSE)
6             (1 = FINE,  9 = COARSE)
7             (1 = FINE,  9 = COARSE)
8             (1 = FINE,  9 = COARSE)
9             COARSE


Descriptor: FRUITCORE     obtype: CHAR    CGC: YES

CORE

Code          Definition
----          ----------
D             DISTANT
M             MEDIAN
S             SESSILE


Descriptor: FRUITSCAB     obtype: CHAR    CGC: YES

RATING OF DAMAGE CAUSED BY FRUIT SCAB

Code          Definition
----          ----------
1             NO DAMAGE
2             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
3             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
4             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
5             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
6             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
7             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
8             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
9             SEVERE DAMAGE


Descriptor: FSTCAMBIUM     obtype: NUMERIC    CGC: YES

MINIMUM TEMPERATURE (DEGREES F) AT WHICH THERE WAS
UNEQUIVOCAL SURVIVAL OF A MAJORITY OF THE CAMBIAL PIECES
TESTED (TESTED AT 5 DEGREE INTERVALS).


Descriptor: FTBRNCAGE1     obtype: NUMERIC    CGC: YES

MINIMUM AGE IN YEARS OF BRANCH PIECES TESTED IN LATE FALL
COLD HARDINESS TESTS.


Descriptor: FTBRNCAGE2     obtype: NUMERIC    CGC: YES

MAXIMUM AGE IN YEARS OF BRANCH PIECES TESTED IN LATE FALL
COLD HARDINESS TESTS.


Descriptor: FTCHILUNIT     obtype: NUMERIC    CGC: YES

CHILL UNITS ACCRUED UNTIL FIRST (LATE FALL) COLD HARDINESS
TESTS.


Descriptor: FULLBLOOM     obtype: NUMERIC    CGC: YES

JULIAN DATE OF FULL BLOOM


Descriptor: FULLRIPE     obtype: NUMERIC    CGC: YES

JULIAN DATE OF FULL RIPE FRUIT


Descriptor: GRIT     obtype: CHAR    CGC: YES

NUMBER OF STONE CELLS

Code          Definition
----          ----------
1             NO STONE CELLS
2             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
3             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
4             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
5             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
6             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
7             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
8             (1 = NO STONE CELLS, 9 = MANY STONE CELLS)
9             MANY STONE CELLS


Descriptor: GRITSIZE     obtype: CHAR    CGC: YES

SIZE AND LOCATION OF STONE CELLS

Code          Definition
----          ----------
L             LARGE
M             MEDIUM
S             SMALL


Descriptor: GRNDCOLOR     obtype: CHAR    CGC: YES

GROUND COLOR

Code          Definition
----          ----------
B             BROWN
G             GREEN
L             GOLDEN
O             ORANGE
R             RED
T             TAN
Y             YELLOW
YG            YELLOW GREEN


Descriptor: LASTBLOOM     obtype: NUMERIC    CGC: YES

JULIAN DATE OF LAST BLOOM


Descriptor: LASTRIPE     obtype: NUMERIC    CGC: YES

JULIAN DATE OF LAST RIPE FRUIT


Descriptor: LEAFCOLOR     obtype: CHAR    CGC: YES

SUMMER LEAF COLOR RECORDED AS HUE, NOT VALUE.

Code          Definition
----          ----------
1             LIGHT
2             MEDIUM
3             DARK


Descriptor: LEAFLENGTH     obtype: NUMERIC    CGC: YES

TYPICAL LENGTH OF LEAF MEASURED IN CENTIMETERS


Descriptor: LEAFSCAB     obtype: CHAR    CGC: YES

RATING OF DAMAGE CAUSED BY LEAF SCAB

Code          Definition
----          ----------
1             NO DAMAGE
2             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
3             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
4             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
5             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
6             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
7             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
8             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
9             SEVERE DAMAGE


Descriptor: LENTICELS     obtype: CHAR    CGC: YES

NUMBER OF LENTICELS

Code          Definition
----          ----------
1             FEW
2             (1 = FEW,  9 = MANY)
3             (1 = FEW,  9 = MANY)
4             (1 = FEW,  9 = MANY)
5             (1 = FEW,  9 = MANY)
6             (1 = FEW,  9 = MANY)
7             (1 = FEW,  9 = MANY)
8             (1 = FEW,  9 = MANY)
9             MANY


Descriptor: LENTSIZE     obtype: CHAR    CGC: YES

SIZE OF LENTICELS

Code          Definition
----          ----------
1             SMALL
2             (1 = SMALL,  9 = LARGE)
3             (1 = SMALL,  9 = LARGE)
4             (1 = SMALL,  9 = LARGE)
5             (1 = SMALL,  9 = LARGE)
6             (1 = SMALL,  9 = LARGE)
7             (1 = SMALL,  9 = LARGE)
8             (1 = SMALL,  9 = LARGE)
9             LARGE


Descriptor: LFWATLOSS     obtype: NUMERIC    CGC: YES

FRACTION OF TOTAL WATER LOST IN 24 HOURS RELATIVE TO (I.E.
DIVIDED BY) STANDARD (CPYR 1441, PYRUS BETULIFOLIA).


Descriptor: MILDEW     obtype: CHAR    CGC: YES

RATING OF DAMAGE CAUSED BY MILDEW

Code          Definition
----          ----------
1             NO DAMAGE
2             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
3             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
4             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
5             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
6             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
7             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
8             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
9             SEVERE DAMAGE


Descriptor: OVERCOLAMT     obtype: NUMERIC    CGC: YES

PERCENT OF FRUIT SURFACE WITH OVERCOLOR


Descriptor: OVERCOLOR     obtype: CHAR    CGC: YES

OVERCOLOR

Code          Definition
----          ----------
BL            BLUSH
N             NONE
SL            SPLASHES
SP            SPOTTED
ST            STRIPPED


Descriptor: OXIDATION     obtype: CHAR    CGC: YES

OXIDATION OF CUT MEASURED AFTER 5 MINUTES

Code          Definition
----          ----------
1             NONE
2             (1 = NONE,  9 = SEVERE)
3             (1 = NONE,  9 = SEVERE)
4             (1 = NONE,  9 = SEVERE)
5             (1 = NONE,  9 = SEVERE)
6             (1 = NONE,  9 = SEVERE)
7             (1 = NONE,  9 = SEVERE)
8             (1 = NONE,  9 = SEVERE)
9             SEVERE


Descriptor: PEDICELATT     obtype: CHAR    CGC: YES

PEDICEL ATTACHMENT

Code          Definition
----          ----------
L             LEVEL
R             RAISED
S             SWOLLEN
U             SUNKEN


Descriptor: PRECOCITY     obtype: NUMERIC    CGC: YES

NUMBER OF YEARS FROM PLANTING TO FIRST FRUIT


Descriptor: PSEUDOMONA     obtype: CHAR    CGC: YES

RATING OF DAMAGE CAUSED BY PSEUDOMONAS

Code          Definition
----          ----------
1             NO DAMAGE
2             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
3             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
4             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
5             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
6             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
7             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
8             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
9             SEVERE DAMAGE


Descriptor: QUALITY     obtype: CHAR    CGC: YES

QUALITY OF FRUIT FLESH A COMBINATION OF FLAVOR, TEXTURE
AND AROMA

Code          Definition
----          ----------
1             POOR
2             (1 = POOR,  9 = EXCELLENT)
3             (1 = POOR,  9 = EXCELLENT)
4             (1 = POOR,  9 = EXCELLENT)
5             (1 = POOR,  9 = EXCELLENT)
6             (1 = POOR,  9 = EXCELLENT)
7             (1 = POOR,  9 = EXCELLENT)
8             (1 = POOR,  9 = EXCELLENT)
9             EXCELLENT


Descriptor: RUSSET     obtype: CHAR    CGC: YES

AMOUNT OF RUSSETING

Code          Definition
----          ----------
1             NONE
2             (1 = NONE,  9 = COMPLETELY RUSSETED)
3             (1 = NONE,  9 = COMPLETELY RUSSETED)
4             (1 = NONE,  9 = COMPLETELY RUSSETED)
5             (1 = NONE,  9 = COMPLETELY RUSSETED)
6             (1 = NONE,  9 = COMPLETELY RUSSETED)
7             (1 = NONE,  9 = COMPLETELY RUSSETED)
8             (1 = NONE,  9 = COMPLETELY RUSSETED)
9             COMPLETELY RUSSETED


Descriptor: RUSSETLOC     obtype: CHAR    CGC: YES

LOCATION OF RUSSETING

Code          Definition
----          ----------
B             BLUSH SIDE
C             CALYX END
E             EVERYWHERE
P             PEDICEL END


Descriptor: RUST     obtype: CHAR    CGC: YES

RATING OF DAMAGE CAUSED BY RUST

Code          Definition
----          ----------
1             NO DAMAGE
2             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
3             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
4             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
5             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
6             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
7             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
8             (1 = NO DAMAGE,  9 = SEVERE DAMAGE)
9             SEVERE DAMAGE


Descriptor: SECBRNCHA1     obtype: NUMERIC    CGC: YES

MINIMUM AGE IN YEARS OF BRANCH PIECES TESTED IN MID-WINTER
COLD HARDINESS TESTS.


Descriptor: SECBRNCHA2     obtype: NUMERIC    CGC: YES

MAXIMUM AGE IN YEARS OF BRANCH PIECES TESTED IN MID-WINTER
COLD HARDINESS TESTS.


Descriptor: SECCAMBIUM     obtype: NUMERIC    CGC: YES

MINIMUM TEMPERATURE (DEGREES F) AT WHICH THE MAJORITY OF
CAMBIUM PIECES UNEQUIVOCALLY SURVIVED (TESTED AT 5 DEGREE
INTERVALS).


Descriptor: SECCHILLUN     obtype: NUMERIC    CGC: YES

CHILL UNITS ACCRUED UNTIL SECOND (MID-WINTER) COLD
HARDINESS TEST.


Descriptor: SKCOMMENTS     obtype: CHAR    CGC: YES

COMMENTS ON SKIN CHARACTERISTICS


Descriptor: TEXTTYPE     obtype: CHAR    CGC: YES

FLESH TEXTURE TYPE

Code          Definition
----          ----------
B             BUTTERY
C             CRISP
D             DRY
J             JUICY
L             MELTING
M             MEALY
R             CRUNCHY
Y             CHEWY


Descriptor: THORNADULT     obtype: CHAR    CGC: YES

PRESENCE OF THORNS AS ADULT

Code          Definition
----          ----------
1             NONE
2             FEW
3             NUMEROUS


Descriptor: THORNJUVEN     obtype: CHAR    CGC: YES

PRESENCE OF THORNS AS JUVENILE

Code          Definition
----          ----------
1             NONE
2             FEW
3             NUMEROUS


Descriptor: TRDBRNCAGE     obtype: NUMERIC    CGC: YES

MINIMUM AGE IN YEARS OF BRANCH PIECES TESTED IN LATE
WINTER / EARLY SPRING COLD HARDINESS TESTS.


Descriptor: TRDBRNCHA2     obtype: NUMERIC    CGC: YES

MAXIMUM AGE IN YEARS OF BRANCH PIECES TESTED IN LATE
WINTER / EARLY SPRING COLD HARDINESS TESTS.


Descriptor: TRDCAMBIUM     obtype: NUMERIC    CGC: YES

MINIMUM TEMPERATURE (DEGREES F) AT WHICH THE MAJORITY OF
THE CAMBIUM PIECES UNEQUIVOCALLY SURVIVED (TESTED AT 5
DEGREE INTERVALS).


Descriptor: TRDCHILLUN     obtype: NUMERIC    CGC: YES

NUMBER OF CHILL UNITS ACCUMULATED UNTIL THIRD (LATE
WINTER, EARLY SPRING) COLD HARDINESS TESTING.


Descriptor: TRDPHSTAGE     obtype: CHAR    CGC: YES

PHENOLOGICAL STAGE OF BUDS AT TIME OF THIRD (LATE
WINTER/EARLY SPRING) COLD HARDINESS TESTS.

Code          Definition
----          ----------
1             DORMANT
2             EXPANDING
3             OPENING


Descriptor: TREESHAPE     obtype: CHAR    CGC: YES

OVERALL SHAPE OF TREE SILHOUETTE

Code          Definition
----          ----------
1             COLUMNAR
2             WIDE COLUMNAR
3             OVAL ROUND
4             ROUND
5             WIDE ROUND


Descriptor: TRSYMMETRY     obtype: CHAR    CGC: YES

SYMMETRY OF TREE GROWTH

Code          Definition
----          ----------
1             ASYMMETRIC
2             INTERMEDIATE
3             SYMMETRIC


Descriptor: TRUNKDIAM     obtype: NUMERIC    CGC: YES

TRUNK DIAMETER MEASURED IN CENTIMETERS MEASUREMENT TAKEN
WITH CALIPERS TWO FEET FROM GROUND


Descriptor: YIELD     obtype: CHAR    CGC: YES

YIELD (PRODUCTIVITY)

Code          Definition
----          ----------
1             HIGH
2             MEDIUM
3             LOW