1
                                                                    PAGE    1
 
  WHEAT                   Site: NSGC    Obs-Type: OBS   Num. Descr.:  50
  --------------------
 
          Contains characteristic data on Triticum (Wheat) accessions
          as proposed by the Wheat Crop Advisory Committee (CAC).  For
          addititional information on the evaluations, contact Harold
          Bockelman at the Nat'l Small Grain Collection in
          Aberdeen, ID  83210.  Phone: (208) 397-4162.
 
 
 
  Descriptor: APHID                Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO APHIDS.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: AWN-COLOR            Cobs Item:         Small-obs: STD  CAC: Y
     AWN COLOR OF HEALTHY PLANTS EVALUATED AT MATURITY.
 
          Code      Definition
          ----      ----------
          1         BLACK
          1A        BLACK AND WHITE
          1B        BLACK AND BROWN
          2         BLUE
          3         BROWN
          3A        BROWN AND WHITE
          4         GREY
          5         PURPLE
          6         RED
          7         TAN
          8         WHITE/AMBER
          9         YELLOW
          MIX       ROW MIXED FOR COLOR
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            1490        3A           3           7            1927
    1A           34          4            283         8            8827
    1B           28          5            3           9            217
    3            1749        6            5           MIX          1423
 
 
 
  Descriptor: AWN-TYPE             Cobs Item:         Small-obs: STD  CAC: Y
     OBSERVATION ON PRESENCE OR ABSENCE OF AWNS FROM PLANTS
     GROWN AT ABERDEEN OR MARICOPA.
 
          Code      Definition
          ----      ----------
          1         AWNED
          3         AWNLETTED
          5         APICALLY AWNLETTED
          9         AWNLESS
 1
                                                                    PAGE    2
 
          Code      Definition
          ----      ----------
          MIX       ROW MIXED FOR AWNS
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            11003       5            1973        9            418
    2            380         6            147         MIX          727
    3            2661        7            352
    4            189         8            269
 
 
 
  Descriptor: BYDV                 Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO BARLEY YELLOW DWARF VIRUS.
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            5           4            1055        7            678
    2            61          5            1938        8            245
    3            339         6            2175        9            3
 
 
 
  Descriptor: CEPH-STRIPE          Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO CEPHALOSPORIUM STRIPE (Cephalosporium
     gramineum).  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: CHRM-NUM             Cobs Item:         Small-obs: ORG  CAC: Y
     LABORATORY DETERMINATION OF SPECIMEN CHROMOSOME COUNT.
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    14 - 19      18          28 - 33      0           42 - 47      0
    19 - 23      0           33 - 37      0           47 - 51      0
    23 - 28      255         37 - 42      245         51 - 56      2
 
 
 
  Descriptor: COMMON-BUNT          Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO COMMON BUNT (Tilletia foetida and Tilletia
     caries).  CODED 1 to 9.
 1
                                                                    PAGE    3
 
   Number    Qualifier                Cmt
   --------  ---------                ---
   65032.1   R39                      Virulence to Bt1, 2, 3, 4, 6, 7, 9, 10
   65032.2   R36                      Virulence to Bt2, 5, 7
   65032.3   T-1                      Virulence to Bt7
   65032.4   Multiple                 R39 (virulence to Bt1, 2, 3, 4, 6, 7, 9,
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            1537        4            1126        7            2771
    2            744         5            875         8            2156
    3            883         6            2043        9            765
 
 
 
  Descriptor: DROUGHT              Cobs Item:         Small-obs: STD  CAC: Y
     TOLERANCE TO DROUGHT.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         TOLERANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: DWARF-BUNT           Cobs Item:         Small-obs: ORG  CAC: Y
     AMOUNT OF DWARF BUNT (TCK) EXPRESSED AS A PERCENT OF
     THE SUSCEPTIBLE CHECK.
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    0 - 11       135         33 - 44      522         67 - 78      332
    11 - 22      462         44 - 56      643         78 - 89      458
    22 - 33      1140        56 - 67      372         89 - 100     2119
 
 
 
  Descriptor: FLAG-SMUT            Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO FLAG SMUT (Urocystis agropyri).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: GLUME-COLOR          Cobs Item:         Small-obs: STD  CAC: Y
     COLOR OF GLUME ON HEALTHY PLANTS RECORDED AT MATURITY.
 
          Code      Definition
          ----      ----------
 1
                                                                    PAGE    4
 
          Code      Definition
          ----      ----------
          1         BLACK
          1A        BLACK AND WHITE
          1B        BLACK AND BROWN
          2         BLUE
          3         BROWN
          3A        BROWN AND WHITE
          4         GREY
          5         PURPLE
          6         RED
          7         TAN
          8         WHITE/AMBER
          9         YELLOW
          MIX       ROW MIXED FOR COLOR
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            262         3A           5           8            9414
    1A           86          4            312         9            263
    1B           56          5            4           MIX          1312
    2            1           6            11
    3            2023        7            2366
 
 
 
  Descriptor: GLUME-PUBESCENCE     Cobs Item:         Small-obs: STD  CAC: Y
     ABSENCE OR PRESENCE OF PUBESCENCE ON THE GLUMES.
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         ABSENT
          3         EDGE ONLY
          5         SHORT (FINE)
          9         LONG, READILY VISIBLE
          MIX       ROW MIXED FOR GLUME PUBESCENCE
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            13863       5            435         MIX          459
    3            14          9            1305
 
 
 
  Descriptor: GREEN-BUG            Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO GREENBUG (Schizaphis graminum).
     Coded 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 1
                                                                    PAGE    5
 
 
 
  Descriptor: GROWTH-HABIT         Cobs Item:         Small-obs: STD  CAC: Y
     GROWTH HABIT (WINTER, FACULTATIVE, OR SPRING).
 
          Code      Definition
          ----      ----------
          F         FACULTATIVE
          F-S       FACULTATIVE TYPE MIXED WITH SOME SPRING TYPES
          F-W       FACULTATIVE TYPE MIXED WITH SOME WINTER TYPES
          S         SPRING
          S-F       SPRING TYPE MIXED WITH SOME FACULTATIVE TYPES
          S-W       SPRING TYPE MIXED WITH SOME WINTER TYPES
          W         WINTER
          W-F       WINTER TYPE MIXED WITH SOME FACULTATIVE TYPES
          W-S       WINTER TYPE MIXED WITH SOME SPRING TYPES
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    F            2022        S            14533       W            12476
    F-S          3           S-F          141         W-F          886
    F-W          7           S-W          368         W-S          997
 
 
 
  Descriptor: HEADING-DATE         Cobs Item:         Small-obs: ORG  CAC: Y
     COUNTED AS NUMBER OF DAYS FROM JANUARY 1 (INCLUSIVE), WHEN
     50% OF THE SPIKES ARE FULLY EXSERTED FROM THE BOOT.
 
          Code      Definition
          ----      ----------
          999       ROW MIXED FOR MATURITY
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    74 - 90      560         123 - 139    62          171 - 188    2633
    90 - 106     2191        139 - 155    0           188 - 204    5775
    106 - 123    2131        155 - 171    38          204 - 220    671
 
 
 
  Descriptor: HESSIAN-FLY          Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO HESSIAN FLY (Mayetiola destructor).
     CODED 1 to 9.
 
   Number    Qualifier                Cmt
   --------  ---------                ---
   65042.1   BIOTYPE-B                Virulence to H3 / Avirulence to H5, H6,
   65042.2   BIOTYPE-C                Virulence to H6 / Avirulence to H3, H5,
   65042.3   BIOTYPE-E                Virulence to H3 / Avirulence to H3, H5,
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 1
                                                                    PAGE    6
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            1309        4            932         7            1210
    2            175         5            1254        8            2182
    3            291         6            1458        9            40083
 
 
 
  Descriptor: KERNEL-COLOR         Cobs Item:         Small-obs: STD  CAC: Y
     KERNEL COLOR OF HEALTHY PLANTS OBSERVED AT MATURITY.
 
          Code      Definition
          ----      ----------
          1         BLACK
          1A        BLACK AND WHITE
          1B        BLACK AND BROWN
          2         BLUE
          3         BROWN
          3A        BROWN AND WHITE
          4         GREY
          5         PURPLE
          6         RED
          7         TAN
          8         WHITE/AMBER
          9         YELLOW
          MIX       ROW MIXED FOR COLOR
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    3            4           5            5           8            7783
    4            1           6            11251
 
 
 
  Descriptor: KERNEL-TEXTURE       Cobs Item:         Small-obs: STD  CAC: Y
     CODE REPRESENTING THE RELATIVE HARDNESS OF A KERNEL.
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         SOFT
          5         INTERMEDIATE
          9         HARD
 
 
 
  Descriptor: KERNEL-WEIGHT        Cobs Item:         Small-obs: ORG  CAC: Y
     KERNAL WEIGHT BASED ON FIVE SPIKES EXPRESSED AS 1000 KERNEL
     WEIGHT.
 
 
 
  Descriptor: KERNELS-SPIKE        Cobs Item:         Small-obs: ORG  CAC: Y
     COUNT OF TOTAL NUMBER OF KERNELS ON AN AVERAGE OF FIVE
     SPIKES GROWN AT MARICOPA OR ABERDEEN.
 1
                                                                    PAGE    7
 
 
 
  Descriptor: LEAF-BEETLE          Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO CEREAL LEAF BEETLE (Oulema melanopus).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: LEAF-BLIGHT          Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO BACTERIAL LEAF BLIGHT (Pseudomonas syringae).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: LEAF-PUBESCENCE      Cobs Item:         Small-obs: STD  CAC: Y
     ABSENCE OR PRESENCE OF PUBESCENCE ON THE LEAVES.
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         ABSENT
          9         PRESENT, VERY HEAVY
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            16646       4            5           9            11
    2            24          5            14          I            1
    3            17          7            1           MIX          4
 
 
 
  Descriptor: LEAF-RUST            Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO LEAF RUST (Puccinia recondita).
     CODED 0 TO 9.
 
   Number    Qualifier                Cmt
   --------  ---------                ---
   65024.1   Multiple                 Races PRTUS1-9,14,16,17,19,25,26
 
          Code      Definition
          ----      ----------
          0         RESISTANT
          9         SUSCEPTIBLE
 1
                                                                    PAGE    8
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    0            1126        4            713         8            7478
    1            817         5            1519        9            7187
    2            729         6            1059
    3            884         7            2934
 
 
 
  Descriptor: LOOSE-SMUT           Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO LOOSE SMUT (Ustilago tritici).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: PLANT-HEIGHT         Cobs Item:         Small-obs: ORG  CAC: Y
     HEIGHT OF THE WHEAT PLANT FROM GROUND TO TOP OF SPIKE AT
     MATURITY, EXCLUDING AWNS.  MEASURED IN CENTIMETERS.
 
          Code      Definition
          ----      ----------
          999       ROW MIXED FOR PLANT HEIGHT
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    13 - 31      4           67 - 85      3266        121 - 139    2529
    31 - 49      13          85 - 103     4712        139 - 157    531
    49 - 67      585         103 - 121    6074        157 - 175    25
 
 
 
  Descriptor: POWDERY-MILDEW       Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO POWDERY MILDEW (Erysiphe graminis tritici).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: PROTEIN              Cobs Item:         Small-obs: ORG  CAC: Y
     PERCENT PROTEIN.
 
 
 
  Descriptor: RUSSIAN-APHID        Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO RUSSIAN WHEAT APHID
 
          Code      Definition
          ----      ----------
 1
                                                                    PAGE    9
 
          Code      Definition
          ----      ----------
          1         PLANTS APPEAR HEALTHY, MAY HAVE SMALL ISOLATED
                    CHLOROTIC SPOTS
          2         5% LEAF CHLOROTIC, CHLOROTIC SPOTS BECOME MORE
                    NOTICEABLE
          3         15% LEAF CHLOROTIC, CHLOROTIC SPOTS ARE LARGER AND
                    MORE NUMEROUS.
          4         25% LEAF CHLOROTIC - SOME STREAKING MAY BECOME APPARENT,
                    ESPECIALLY ALONG TH EMIDRIB.
          5         40% LEAF CHLOROTIC, CHLOROTIC SPOTS BEGIN TO COALESCE OR
                    DEFINITE STREAKING OCCURS.
          6         55% LEAF CHLOROTIC, LARGER CHLOROTIC SPOTS COALESCE.
                    LEAVES START TO "DIE-BACK" FROM TIPS.
          7         70% LEAF CHLOROTIC, FURTHER SYMPTOMS DEVELOP.
          8         85% LEAF CHLOROTIC, EXTENSIVE CHLOROSIS AND
                    NECROSIS.
          9         PLANT DEATH OR NO RECOVERY POSSIBLE
          MIX       MIXED FOR RESISTANCE TO RUSSIAN WHEAT APHID
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    2            3           5            359         8            1280
    3            54          6            879         9            5148
    4            112         7            1275        MIX          104
 
 
 
  Descriptor: RWA-LEAFROLL         Cobs Item:         Small-obs: STD  CAC: Y
     LEAFROLL SYMPTOMS CAUSED BY THE RUSSIAN WHEAT APHID
 
          Code      Definition
          ----      ----------
          F         LEAVES ARE FLAT, NO APPARENT ROLLING
          MIX       MIXED FOR DEGREE OF LEAFROLLING
          R         LEAVES ROLLED, LOOSELY TO TIGHTLY
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    F            309         MIX          243         R            8662
 
 
 
  Descriptor: SALT-TOLERANCE       Cobs Item:         Small-obs: STD  CAC: Y
     ABILITY TO PERFORM UNDER HIGH SALT CONDITIONS.
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         TOLERANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: SEPT-NODORUM         Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO SEPTORIA NODORUM (Leptosphaeria nodorum).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
 1
                                                                    PAGE   10
          1         RESISTANT
          5         INTERMEDIATE
          9         SUSCEPTIBLE
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            107         5            247         9            7741
 
 
 
  Descriptor: SEPT-TRITICI         Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO SEPTORIA TRITICI (Mycosphaerella graminicola).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: SHATTERING           Cobs Item:         Small-obs: STD  CAC: Y
     DEGREE OF SHATTERING OF SEED FROM THE SPIKE.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         NO SHATTERING
          9         SEVERE - 50% OF SEED DROPPED
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            7136        5            83          9            12
    2            917         6            28          MIX          4
    3            227         7            30
    4            99          8            17
 
 
 
  Descriptor: SNOW-MOLD            Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO SNOW MOLD (Fusarium nivale, Typhula species,
     or Sclerotinia borealis).  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: SOILBORNE-MOSAIC     Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO SOIL-BORNE MOSAIC VECTORED BY
     (Polymyxa graminis).
 
          Code      Definition
          ----      ----------
          0         RESISTANT
 1
                                                                    PAGE   11
 
          Code      Definition
          ----      ----------
          9         SUSCEPTIBLE
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    0            143         4            493         8            482
    1            279         5            1270        9            25
    2            334         6            1138
    3            1303        7            1122
 
 
 
  Descriptor: SPIKE-DENSITY        Cobs Item:         Small-obs: STD  CAC: Y
     A VISUAL MEASURE OF DENSITY OF A WHEAT SPIKE TAKEN AT
     ABERDEEN OR MARICOPA.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         LAX
          9         VERY DENSE
          MIX       ROW MIXED FOR SPIKE DENSITY
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            15          5            966         9            36
    2            581         6            2160        MIX          441
    3            1941        7            625
    4            1745        8            65
 
 
 
  Descriptor: SPIKE-TYPE           Cobs Item:         Small-obs: STD  CAC: Y
     SHAPE AND OTHER SUCH FEATURES RELATED TO SPIKE ON PLANTS
     GROWN AT ABERDEEN OR MARICOPA.
 
          Code      Definition
          ----      ----------
          1         FUSIFORM
          3         OBLONG
          5         CLAVATE
          9         ELLIPTICAL
          MIX       ROW MIXED FOR SPIKE TYPES
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            681         3            7172        9            46
    2            1           5            340         MIX          338
 
 
 
  Descriptor: STEM-RUST-ADULT      Cobs Item:         Small-obs: STD  CAC: Y
     REACTION TO PUCCINIA GRAMINIS TRITICI IN THE ADULT
     GROWTH STAGE IN THE FIELD.
 
          Code      Definition
          ----      ----------
 1
                                                                    PAGE   12
 
          Code      Definition
          ----      ----------
          0         RESISTANT
          1
          2
          3
          4
          5
          6
          7
          8
          9         SUSUCEPTIBLE
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    0            104         4            1623        8            1214
    1            883         5            620         9            591
    2            1111        6            3106
    3            1391        7            12
 
 
 
  Descriptor: STEM-RUST-GENES      Cobs Item:         Small-obs: CMT  CAC: Y
     POSTULATED GENE(S) FOR RESISTANCE TO PUCCINIA GRAMINIS
     TRITICI BASED ON SEEDLING REACTIONS TO SEVERAL ISOLATES.
 
 
 
  Descriptor: STEM-RUST-SEEDLG     Cobs Item:         Small-obs: STD  CAC: Y
     SEEDLING INFECTION TYPES PRODUCED BY P. GRAMINIS TRITICI;
     +, ++, -, =, INDICATE VARIATION WITHIN AN INFECTION; C, B, N
     INDICATE CHLOROSIS, BROWNING, & NECROSIS.  SEE OBS COMMENT.
 
   Number    Qualifier                Cmt
   --------  ---------                ---
   65051.1   HJCS
   65051.2   QFBS
   65051.3   QSHS
   65051.4   RHRS
   65051.5   RTQQ
   65051.6   TNMH
   65051.7   TNMK
 
          Code      Definition
          ----      ----------
          0         IMMUNE; NO UREDIA OR OTHER INDICATIONS OF INFECTION
          0;        NEARLY IMMUNE; NO UREDIA BUT A FEW HYPERSENSITIVE
                    FLECKS PRESENT
          1         VERY RESISTANT; UREDIA MINUTE, SURROUNDED BY DISTINCT
                    NECROTIC AREAS
          2         MODERATELY RESISTANT; UREDIA SMALL TO MEDIUM, USUALLY GREEN
                    ISLANDS SURROUNDED BY A DECIDEDLY CHLOROTIC/NECROTIC BORDER
          3         MODERATELY SUSCEPTIBLE; UREDIA MEDIUM SIZE COALESCENCE
                    INFREQUENT, NO NECROSIS, BUT CHLOROTIC AREAS MAYBE PRESENT
          ;         MOSTLY IMMUNE, NO UREDIA, BUT NUMEROUS HYPERSENSITIVE
                    FLECKS PRESENT
          S         VERY SUSCEPTIBLE; UREDIA LARGE AND OFTEN COALESCING, NO
                    NECROSIS BUT CHLOROSIS MAY BE PRESENT
 1
                                                                    PAGE   13
 
          Code      Definition
          ----      ----------
          X         HETEROGENEOUS; UREDIA VARIABLE, SOMETIMES INCLUDING
                    ALL INFECTION TYPES AND INTERGRADATIONS ON THE SAME LEAF
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    0            916         2            5360        S            20725
    0;           1309        3            2           X            152
    1            325         ;            1409
 
 
 
  Descriptor: STRAW-BREAKAGE       Cobs Item:         Small-obs: STD  CAC: Y
     STEM BREAKAGE.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         NO BREAKAGE
          9         ALL PLANTS
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            12187       5            78          9            34
    2            3717        6            42          MIX          2
    3            570         7            9
    4            306         8            15
 
 
 
  Descriptor: STRAW-COLOR          Cobs Item:         Small-obs: STD  CAC: Y
     COLOR OF STRAW ON HEALTHY PLANTS RECORDED AT MATURITY.
 
          Code      Definition
          ----      ----------
          1         BLACK
          1A        BLACK AND WHITE
          1B        BLACK AND BROWN
          2         BLUE
          3         BROWN
          3A        BROWN AND WHITE
          4         GREY
          5         PURPLE
          6         RED
          7         TAN
          8         WHITE/AMBER
          9         YELLOW
          MIX       ROW MIXED FOR COLOR
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            15          5            659         8            3320
    3            28          6            1           9            9531
    4            16          7            1321        MIX          255
 1
                                                                    PAGE   14
 
 
 
  Descriptor: STRAW-LODGING        Cobs Item:         Small-obs: STD  CAC: Y
     SUBJECTIVE EVALUATION OF STRAW STRENGTH WITH STAGE OF GROWTH
     SPECIFIED.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         NO LODGING
          9         ALL PLANTS FLAT
 
                  Frequency Table of Values in GRIN
    VALUE        FREQ.       VALUE        FREQ.      VALUE        FREQ.
    ------------ -------     ------------ ------     ------------ -------
    1            3602        5            1072        9            954
    2            3230        6            1161        MIX          6
    3            3065        7            896
    4            2215        8            849
 
 
 
  Descriptor: STRIPE-RUST-RXN      Cobs Item:         Small-obs: STD  CAC: Y
     REACTION TO STRIPE RUST (INCITED BY PUCCINIA STRIIFORMIS).
 
          Code      Definition
          ----      ----------
          0         NO SYMPTOMS, RESISTANT
          2         RESISTANT
          5         INTERMEDIATE
          8         SUSCEPTIBLE
          MIX       ROW MIXED FOR REACTION TO STRIPE RUST
 
 
 
  Descriptor: STRIPE-RUST-SEV      Cobs Item:         Small-obs: ORG  CAC: Y
     PERCENT SEVERITY OR INTENSITY OF STRIPE RUST
     (PUCCINIA STRIIFORMIS) INFECTION IN THE ADULT STAGE
     IN THE FIELD.
 
 
 
  Descriptor: TAKE-ALL             Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO TAKE ALL (Gaeumannomyces graminis tritici).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: TAN-SPOT             Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO TAN SPOT (Pyrenophora trichostoma).
     CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTABLE
 1
                                                                    PAGE   15
 
 
 
  Descriptor: WHEAT-STREAK         Cobs Item:         Small-obs: STD  CAC: Y
     RESISTANCE TO WHEAT STREAK MOSAIC VIRUS.  CODED 1 to 9.
 
          Code      Definition
          ----      ----------
          1         RESISTANT
          9         SUSCEPTIBLE
 
 
 
  Descriptor: WINTER-HARDINESS     Cobs Item:         Small-obs: ORG  CAC: Y
     PERCENT OF PLANTS SURVIVING THE WINTER BASED ON FALL STAND
     RELATIVE TO CHECK VARIETY.
 
 
 
  Descriptor: YIELD                Cobs Item:         Small-obs: ORG  CAC: Y
     WEIGHT OF GRAIN IN GRAMS PER UNREPLICATED TWO METER ROW.
     TAKEN AT MARICOPA OR ABERDEEN.