Summer (Stage 4) Slicing Cucumber Trial – 2004

NCSU Cucumber Breeding Report - 2004cuke.gif

Todd C. Wehner
Professor

Tammy L. Ellington
Agric. Res. Tech. III


Department of Horticultural Science
North Carolina State University
            Raleigh, NC 27695-7609


Summer (Stage 4) Slicing Cucumber Trial
2004
Todd C. Wehner and Tammy L. Ellington

Experiment Design
1.   A randomized complete block with 3 replications of slicer cultivars and
     breeding lines (collectively referred to as cultigens) was grown.
2.   Plots were single 20 ft. rows with 5 ft. alleys at each end.
3.   Rows were on raised 18" beds spaced 60" apart (center to center).
4.   Fertilizer consisted of 80-80-80 lb/A (N-P-K) broadcast preplant
     and 30-0-0 lb/A (N-P-K) sideplaced at the 2 to 4 leaf stage.
5.   Curbit was applied preemergence at the rate of 1 lb. a.i./A.
6.   The trial was planted 15 July, and harvested 4 times
     (Mondays and Thursdays) between 26 August and 7 September.
Data Collection
1.   Fruit were weighed after sorting into No.1, No.2 and cull
     (nubs and crooks) grades according to U.S.D.A. standards.
2.   Fruit length, diameter and weight were recorded for 3 fruit per plot.
3.   Quality ratings were from 1 to 9, with 1 = worst, 9 = best.
4.   Disease ratings were from 0 to 9, with 0 = no disease, 1-2 = trace,
     3-4 = slight, 5-6 = moderate, 7-8 = severe, 9 = plant dead.
Results
The following cultigens performed well, and could be advanced
to the next stage:
01   Intimidator                     Seminis
02   Thunder                         Seminis
03   NC-Sunshine                     NC State Univ
04   HMX 4441                        Harris Moran
05   Dasher II                       Seminis
06   SVR147-10886                    Seminis
07   SVR147-10887                    Seminis
08   SRQS-2914                       SunSeeds
09   G57xNC-59                       NC State Univ
10   NC-Stratford                    NC State Univ


Table 31.  Stage 4 summer slicer trial - yield data (cultigens ranked by
cwt/A of Fancy + No. 1 grade fruit).
_________________________________________________________________________________
                                         Yield(cwt/A)   Percent          Plants
         Cultivar          Seed          Fancy  Market-  fancy  Percent  per A
   Rank   or line         source         +No.1    able   +No.1   culls  (x1000)
_________________________________________________________________________________
     1   NC-Sunshine    NC State Univ      30      46      25      63      26
     2   Thunder        Seminis            27      47      23      61      25
     3   Intimidator    Seminis            27      58      16      55      26
     4   NC-Stratford   NC State Univ      16      22      11      83      26
     5   SVR147-10887   Seminis            13      26       9      81      26
     6   G57xNC-59      NC State Univ      10      42       8      66      26
     7   Dasher II      Seminis             8      19       8      74      26
     8   G83xNC-63      NC State Univ       8      20       8      78      26
     9   G57xNC-62      NC State Univ       8      10       9      87      26
    10   SVR147-10886   Seminis             7      25       6      69      26
    11   Stonewall      Harris Moran        4      11       8      79      26
    12   HMX 4441       Harris Moran        2      24       3      31      26
    13   G83xNC-59      NC State Univ       2      12       2      87      26
    14   Panther        SunSeeds            2      21       3      74      26
    15   G83xNC-58      NC State Univ       2       9       3      82      26
    16   G57xNC-58      NC State Univ       1       2       2      97      26
    17   SRQS-2983      SunSeeds            1       3       3      56      26
    18   G83xNC-62      NC State Univ       1       5       2      89      26
    19   G57xNC-63      NC State Univ       1       3       2      94      26
    20   Speedway       Seminis             1       2       1      70      26
    21   SRQS-2914      SunSeeds            0      17       0      77      26
    22   Ashley         Check               0       6       0      85      21
    23   Poinsett 76    Cornell Univ.       0       5       0      77      26
_________________________________________________________________________________
         CV (%)                           188     122     139      32       5
         Mean                               7      19       7      75      26
         LSD (5%)                          23      38      15      40       2
_________________________________________________________________________________
Correlation (Marketable yield with % culls) = -0.64**


Table 32.  Stage 4 summer slicer trial - earliness data (cultigens ranked by
weight of Fancy + No.1 grade fruit in harvests 1 and 2).
_________________________________________________________________________________
                                         Cumulative fruit weight and % of
                                      total weight (6 harvests) for harvest:____
     Cultivar         Seed          1       1-2       1-3       1-4       1-5___
Rank  or line        source      Wt.  %   Wt.   %   Wt.   %   Wt.   %   Wt.   %
_________________________________________________________________________________
  1 Intimidator  Seminis         26   32    43   69   47   75   58  100   58  100
  2 G57xNC-59    NC State Univ    9   14    41   65   42   67   42   67   42   67
  3 Thunder      Seminis          9   17    39   55   41   59   47  100   47  100
  4 NC-Sunshine  NC State Univ    3    3    28   44   43   61   46  100   46  100
  5 SVR147-10887 Seminis          7    8    24   31   25   32   26   33   26   33
  6 G83xNC-63    NC State Univ    1    1    17   30   19   33   20   67   20   67
  7 Dasher II    Seminis          3    5    16   61   18   65   19   67   19   67
  8 NC-Stratford NC State Univ    2   13    16   56   19   62   22  100   22  100
  9 Panther      SunSeeds         0    0    15   59   20   76   21  100   21  100
 10 HMX 4441     Harris Moran     3    5    14   28   18   60   24  100   24  100
 11 G57xNC-62    NC State Univ    4   25     9   63   10   67   10   67   10   67
 12 SVR147-10886 Seminis          1    1     9   13   23   57   25   67   25   67
 13 SRQS-2914    SunSeeds         1    9     8   40   15   80   17  100   17  100
 14 Stonewall    Harris Moran     1    5     6   21    9   31   11   67   11   67
 15 G83xNC-59    NC State Univ    1    2     6   47   12   67   12   67   12   67
 16 G83xNC-62    NC State Univ    1   13     4   67    4   67    5  100    5  100
 17 G83xNC-58    NC State Univ    0    0     3   33    4   42    9  100    9  100
 18 SRQS-2983    SunSeeds         0    0     3   67    3   67    3   67    3   67
 19 G57xNC-63    NC State Univ    1   15     2   26    3   67    3   67    3   67
 20 Poinsett 76  Cornell Univ.    0    0     2   16    3   20    5   67    5   67
 21 G57xNC-58    NC State Univ    2   67     2   67    2   67    2   67    2   67
 22 Ashley       Check            0    0     1    4    4   24    6   33    6   33
 23 Speedway     Seminis          0    0     0    0    1   33    2   67    2   67
_________________________________________________________________________________
    CV (%)                      244  163   132   79  132   72  122   54  122   54
    Mean                          3   10    13   42   17   56   19   77   19   77
    LSD (5%)                     13   27    29   54   36   66   38   68   38   68
_________________________________________________________________________________
Correlation (Marketable yield with yield in harvests 1-2)      = 0.96**
Correlation (Marketable yield with % of yield in harvests 1-2) = 0.49**


Table 33.  Stage 4 summer slicer trial - fruit quality data (cultigens ranked
by average quality).z
_________________________________________________________________________________
        Cultivar         Seed           Average                    Seed- Overall
 Rank    or line        source          quality   Shape    Color   cell impression
_________________________________________________________________________________
    1   NC-Sunshine    NC State Univ      7.3        6       9       9       7
    2   SVR147-10886   Seminis            6.9        7       8       7       6
    3   HMX 4441       Harris Moran       6.6        6       8       7       6
    4   Intimidator    Seminis            6.4        6       9       7       6
    5   Dasher II      Seminis            6.4        6       8       7       6
    6   SRQS-2914      SunSeeds           6.4        6       8       8       6
    7   Thunder        Seminis            6.3        6       8       7       6
    8   Speedway       Seminis            6.1        6       8       7       6
    9   NC-Stratford   NC State Univ      6.1        6       8       6       6
   10   SVR147-10887   Seminis            5.9        6       8       6       5
   11   G83xNC-63      NC State Univ      5.9        7       8       6       5
   12   Stonewall      Harris Moran       5.8        6       9       7       5
   13   Panther        SunSeeds           5.8        5       8       6       6
   14   SRQS-2983      SunSeeds           5.6        6       7       5       6
   15   G57xNC-59      NC State Univ      5.4        5       7       6       5
   16   G83xNC-62      NC State Univ      5.3        5       8       6       5
   17   G83xNC-58      NC State Univ      5.3        5       8       5       5
   18   G57xNC-63      NC State Univ      5.2        5       8       5       5
   19   Poinsett 76    Cornell Univ.      5.2        5       7       6       5
   20   G57xNC-62      NC State Univ      5.1        4       7       6       5
   21   G83xNC-59      NC State Univ      5.0        5       8       5       5
   22   Ashley         Check              4.6        4       6       5       4
   23   G57xNC-58      NC State Univ      4.3        4       7       4       4
_________________________________________________________________________________
        CV (%)                           10.9       18       9      15      15
        Mean                              5.8        6       8       6       5
        LSD (5%)                          1.0        2       1       2       1
_________________________________________________________________________________
z Quality rated 1 to 9 (1 = poor, 5 = average, 9 = excellent;
except color where 1 = white, 5 = medium green, 9 = very dark green).
Correlation (Marketable yield with average quality) = 0.19ns


Table 34.  Stage 4 summer slicer trial - fruit dimensions and comments
(cultigens ranked by average quality rating).z
_________________________________________________________________________________
         Cultivar         Seed        Length Diameter  Wt.   Defect1°  Defect2°
   Rank   or line        source       (inch)  (inch)  (lb.)  2  4  6   2  4  6
_________________________________________________________________________________
      1  NC-Sunshine   NC State Univ    7.5    1.8   0.63    K  K  K   H  K  N
      2  SVR147-10886  Seminis          7.1    1.8   0.49    H  K  T   K  T  N
      3  HMX 4441      Harris Moran     6.5    1.8   0.48    H  C  H   K  N  K
      4  Intimidator   Seminis          6.9    1.8   0.45    K  T  T   H  N  N
      5  Dasher II     Seminis          6.9    1.8   0.51    K  H  T   T  N  N
      6  SRQS-2914     SunSeeds         7.1    1.8   0.46    N  T  N   T  N  H
      7  Thunder       Seminis          7.5    1.9   0.56    K  K  N   N  N  K
      8  Speedway      Seminis          6.7    1.7   0.46    H  K  D   T  N  N
      9  NC-Stratford  NC State Univ    7.4    2.0   0.65    H  H  H   C  N  N
     10  SVR147-10887  Seminis          7.0    1.9   0.50    H  T  T   N  N  N
     11  G83xNC-63     NC State Univ    6.9    1.9   0.52    K  T  D   H  N  N
     12  Stonewall     Harris Moran     7.1    1.8   0.45    G  C  T   D  N  N
     13  Panther       SunSeeds         6.7    1.9   0.47    T  H  T   N  N  N
     14  SRQS-2983     SunSeeds         6.4    1.7   0.37    T  T  T   G  N  N
     15  G57xNC-59     NC State Univ    6.3    1.9   0.47    H  T  H   K  N  N
     16  G83xNC-62     NC State Univ    6.8    1.9   0.46    H  H  D   D  N  N
     17  G83xNC-58     NC State Univ    6.3    1.7   0.40    N  K  T   H  N  N
     18  G57xNC-63     NC State Univ    6.6    1.9   0.49    C  K  T   T  N  N
     19  Poinsett 76   Cornell Univ.    6.0    1.9   0.39    H  H  H   T  N  N
     20  G57xNC-62     NC State Univ    6.1    1.9   0.42    C  H  C   N  N  N
     21  G83xNC-59     NC State Univ    6.4    1.9   0.47    N  H  C   H  N  N
     22  Ashley        Check            6.6    1.7   0.48    H  H  T   D  N  M
     23  G57xNC-58     NC State Univ    5.6    1.8   0.25    C  T  C   T  N  N
_________________________________________________________________________________
         CV (%)                         9.4    7.4  18.14
         Mean                           6.7    1.8   0.47
         LSD (5%)                       1.0    0.2   0.14
_________________________________________________________________________________
z Defects were rated as follows (giving primary and secondary for each harvest):
 A - wArty fruit             J – RiDGed               S - Separated carpels
 B - Blossom end defects     K - Keep(excellent)      T - Tapered ends
 C - Crooks excessive        L - Late maturity        U - Uniform green
 D - Dogbone shape           M - Mottled fruit        V - Varicolor (dark stem
 E - Early maturity          N - Nubs excessive           end, light blossom end)
 F - Four celled             O - Offtype fruit        W - White fruit
 G - lonG fruit              P - Placental hollows    X - neCKS on fruit
 H - sHort fruit             Q -                      Y - Yellow fruit
 I - strIped fruit           R - Reject (poor)        Z - diSeased fruit


Table 35.  Stage 4 summer slicer trial - sex expression and vine data
(cultigens ranked by gynoecious rating).
_________________________________________________________________________________
                                                  Early   Earli-
         Cultivar          Seed           Gyn.    yield   ness    Vine     Vine
   Rank   or line         source         ratingz (cwt/A)  (%)x     sizew    colorw
_________________________________________________________________________________
     1   G57xNC-63      NC State Univ       9       2      26       6       6
     2   G57xNC-58      NC State Univ       9       2      67       6       7
     3   SRQS-2914      SunSeeds            9       8      40       7       6
     4   G57xNC-59      NC State Univ       8      41      65       7       7
     5   Stonewall      Harris Moran        8       6      21       6       7
     6   G57xNC-62      NC State Univ       7       9      63       7       5
     7   Thunder        Seminis             7      39      55       7       6
     8   G83xNC-58      NC State Univ       6       3      33       6       6
     9   Dasher II      Seminis             6      16      61       8       7
    10   Intimidator    Seminis             6      43      69       7       7
    11   NC-Sunshine    NC State Univ       6      28      44       7       6
    12   G83xNC-62      NC State Univ       5       4      67       7       5
    13   Speedway       Seminis             5       0       0       6       6
    14   SRQS-2983      SunSeeds            5       3      67       6       8
    15   HMX 4441       Harris Moran        5      14      28       7       7
    16   Panther        SunSeeds            5      15      59       7       6
    17   NC-Stratford   NC State Univ       5      16      56       6       5
    18   G83xNC-63      NC State Univ       4      17      30       6       6
    19   Poinsett 76    Cornell Univ.       4       2      16       6       7
    20   SVR147-10887   Seminis             4      24      31       7       8
    21   SVR147-10886   Seminis             3       9      13       7       8
    22   G83xNC-59      NC State Univ       3       6      47       6       6
    23   Ashley         Check               3       1       4       6       7
_________________________________________________________________________________
         CV (%)                            33     132      79      13      12
         Mean                               6      13      42       7       6
         LSD (5%)                           3      29      54       1       1
_________________________________________________________________________________
z Gynoecious rating (1 = androecious, 2-3 = andromonoecious, 4-6 = monoecious,
7-8 = predominately gynoecious, 9 = gynoecious).
y Early yield is weight of Fancy+No.1 grade fruit produced in harvests 1 and 2.
x Earliness is the percent of the yield (Fancy + No.1 grade fruit) of 6 harvests
that was produced in harvests 1 and 2.
w Vine size & color are rated 1 (small or yellow green) to 9 (large or
dark green).
Correlation (Marketable yield with gynoecious rating) = 0.02ns


Table 36.  Stage 4 summer slicer trial - disease ratings (cultigens ranked
by average disease resistance).z
_________________________________________________________________________________
                    Cultivar           Seed          Downy
           Rank      or line          source         mildew
_________________________________________________________________________________
              1    HMX 4441        Harris Moran        3.3
              2    SRQS-2914       SunSeeds            4.0
              3    SRQS-2983       SunSeeds            4.3
              4    Dasher II       Seminis             4.7
              5    Poinsett 76     Cornell Univ.       5.0
              6    SVR147-10886    Seminis             5.0
              7    Thunder         Seminis             5.3
              8    G83xNC-58       NC State Univ       5.3
              9    Ashley          Check               5.3
             10    Speedway        Seminis             5.7
             11    NC-Stratford    NC State Univ       5.7
             12    Intimidator     Seminis             6.0
             13    G83xNC-62       NC State Univ       6.0
             14    Panther         SunSeeds            6.0
             15    SVR147-10887    Seminis             6.0
             16    G57xNC-63       NC State Univ       6.3
             17    NC-Sunshine     NC State Univ       6.3
             18    G83xNC-59       NC State Univ       6.3
             19    G57xNC-59       NC State Univ       6.7
             20    G83xNC-63       NC State Univ       6.7
             21    Stonewall       Harris Moran        7.0
             22    G57xNC-58       NC State Univ       7.7
             23    G57xNC-62       NC State Univ       8.0
_________________________________________________________________________________
                   CV (%)                             15.0
                   Mean                                5.8
                   LSD (5%)                            1.4
_________________________________________________________________________________
z Disease rated 0 to 9 (0=none, 1-2=trace, 3-4=slight, 5-6=moderate, 7-8=advanced,
  9=plant dead).
Correlation (Marketable yield with disease rating) = 0.18ns


Table 37.  Stage 4 summer slicer trial - selection indexes (cultigens ranked
by SWI1).z
_________________________________________________________________________________
                                             Simple weighted     Average rank
            Cultivar          Seed               indexes            indexes___
   Rank      or line         source          SWI1       SWI2     ARI1     ARI2
_________________________________________________________________________________
      1    Intimidator     Seminis            3.9       4.2       7.3      7.5
      2    Thunder         Seminis            3.9       4.0       8.0      8.1
      3    NC-Sunshine     NC State Univ      3.8       3.9       6.4      8.3
      4    HMX 4441        Harris Moran       3.5       3.4       8.0      8.2
      5    Dasher II       Seminis            3.4       3.8       8.9      9.2
      6    SVR147-10886    Seminis            3.3       3.1       8.7      9.8
      7    SVR147-10887    Seminis            3.2       3.1      11.9     12.5
      8    SRQS-2914       SunSeeds           3.2       3.4       8.8      8.4
      9    G57xNC-59       NC State Univ      3.2       3.5      12.5     12.1
     10    NC-Stratford    NC State Univ      3.2       3.6      10.5     10.3
     11    G83xNC-63       NC State Univ      3.0       3.0      13.0     13.5
     12    Panther         SunSeeds           2.9       3.4      11.1     10.8
     13    SRQS-2983       SunSeeds           2.8       3.5      11.6     11.0
     14    Speedway        Seminis            2.7       2.4      12.3     13.4
     15    Stonewall       Harris Moran       2.6       2.6      13.9     14.8
     16    G83xNC-58       NC State Univ      2.6       2.8      13.4     12.6
     17    G83xNC-62       NC State Univ      2.6       3.2      14.1     13.2
     18    Poinsett 76     Cornell Univ.      2.5       2.5      14.8     14.3
     19    G83xNC-59       NC State Univ      2.4       2.8      14.9     14.2
     20    G57xNC-63       NC State Univ      2.4       2.5      15.7     15.8
     21    Ashley          Check              2.2       2.1      16.3     15.4
     22    G57xNC-62       NC State Univ      2.2       2.9      15.7     15.3
     23    G57xNC-58       NC State Univ      1.9       2.7      18.1     17.3
_________________________________________________________________________________
           CV (%)                            17.6      21.2      22.2     21.2
           Mean                               2.9       3.2      12.0     12.0
           LSD (5%)                           0.8       1.1       4.4      4.2
_________________________________________________________________________________
z SWI is simple weighted index calculated from the performance of a cultigen for
yield; earliness; fruit shape, seedcell size and overall impression; and disease
resistance.  The index is calculated with 2 different methods of weighting each
trait (10 is best, 1 is worst).
ARI is the average ranking of each cultigen for yield, earliness, fruit quality
and disease resistance.  The index is calculated with 2 different sets of
secondary traits added in with the primary traits (1 is best).
Correlation (Marketable yield with SWI1) = 0.83**
Correlation (Marketable yield with ARI1) = -0.59**