NCSU Cucumber Breeding Report - 2007
Todd C. Wehner
Professor
Tammy L. Ellington
Agric. Res. Tech. III
Department of Horticultural Science
North Carolina State University
Raleigh, NC 27695-7609
Spring (Stage 3) Slicing Cucumber Trial
2007
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 26 April, and harvested 6 times
(Mondays and Thursdays) between 18 June and 5 July.
Data Collection
1. Fruits 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 G83xNC-58 NCStateUniv
02 Dasher II Seminis
03 NC-Stratford NCStateUniv
04 PX147-10896 Seminis
05 G83xNC-62 NCStateUniv
06 G83xNC-63 NCStateUniv
07 PX147-10885 Seminis
08 NC-Sunshine NCStateUniv
Table 20. Stage 3 spring 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 Dasher II Seminis 92 200 39 16 26
2 G83xNC-58 NCStateUniv 91 177 38 26 26
3 G83xNC-62 NCStateUniv 89 187 41 19 19
4 G83xNC-63 NCStateUniv 83 164 41 21 22
5 Panther Nunhems 83 176 41 14 26
6 PX147-10896 Seminis 79 190 36 14 26
7 General Lee HarrisMoran 75 180 37 14 26
8 Ashley Check 75 141 49 9 18
9 NC-Stratford NCStateUniv 71 193 28 24 26
10 PX147-10885 Seminis 70 138 39 21 17
11 NC-Sunshine NCStateUniv 65 146 37 24 20
12 G83xNC-59 NCStateUniv 64 160 37 14 20
13 Cherokee 87 Check 63 168 30 19 26
14 WSA-9119 WesternSeed 61 137 34 18 26
15 Marketmore 76 Check 53 93 51 7 26
16 Poinsett 76 CornellUniv 39 133 26 12 26
17 WSA-8119 WesternSeed 30 80 28 27 26
18 G57xNC-59 NCStateUniv 25 49 16 3 12
19 G57xNC-58 NCStateUniv 24 61 9 10 9
20 G57xNC-63 NCStateUniv 22 48 9 13 26
21 G57xNC-62 NCStateUniv 13 38 8 10 26
_________________________________________________________________________________
CV (%) 43 38 37 55 27
Mean 60 136 32 16 23
LSD (5%) 43 86 20 14 10
_________________________________________________________________________________
Correlation (Marketable yield with % culls) = 0.46**
Table 21. Stage 3 spring 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 NC-Stratford NCStateUniv 45 24 82 42 98 52 143 74 172 89
2 G83xNC-58 NCStateUniv 56 32 78 44 101 57 126 71 164 93
3 Dasher II Seminis 24 12 61 31 91 46 119 60 164 82
4 PX147-10896 Seminis 24 13 58 31 104 56 132 70 161 85
5 G83xNC-62 NCStateUniv 28 14 54 27 94 50 113 59 148 78
6 NC-Sunshine NCStateUniv 37 23 49 32 65 44 92 62 131 89
7 G83xNC-63 NCStateUniv 32 20 48 29 65 40 98 59 137 84
8 General Lee HarrisMoran 16 8 40 23 90 52 119 68 141 79
9 G83xNC-59 NCStateUniv 12 8 37 23 80 50 104 65 132 83
10 PX147-10885 Seminis 19 14 35 25 59 43 88 63 117 86
11 Cherokee 87 Check 19 11 34 20 67 39 99 59 132 79
12 G57xNC-58 NCStateUniv 19 11 24 13 34 19 39 22 55 30
13 G57xNC-63 NCStateUniv 16 11 19 13 23 15 35 24 40 27
14 Panther Nunhems 8 5 17 11 74 43 102 59 140 80
15 WSA-8119 WesternSeed 8 12 15 19 37 43 48 56 64 77
16 G57xNC-62 NCStateUniv 7 6 15 13 19 17 27 23 38 33
17 Poinsett 76 CornellUniv 5 5 14 12 35 28 52 40 97 74
18 WSA-9119 WesternSeed 4 5 13 10 49 39 95 73 115 87
19 G57xNC-59 NCStateUniv 3 2 10 7 23 16 35 24 42 29
20 Ashley Check 1 1 4 3 20 14 48 34 92 64
21 Marketmore 76 Check 0 0 2 4 12 14 21 23 54 56
_________________________________________________________________________________
CV (%) 72 67 58 54 42 36 44 37 40 31
Mean 18 11 34 21 59 37 83 52 111 71
LSD (5%) 22 13 32 18 41 22 60 32 73 36
_________________________________________________________________________________
Correlation (Marketable yield with yield in harvests 1-2) = 0.70**
Correlation (Marketable yield with % of yield in harvests 1-2) = 0.59**
Table 22. Stage 3 spring 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 PX147-10896 Seminis 7.6 8 8 7 8
2 Panther Nunhems 7.0 6 7 8 7
3 G83xNC-62 NCStateUniv 6.9 7 9 6 8
4 G83xNC-59 NCStateUniv 6.9 7 8 7 7
5 WSA-8119 WesternSeed 6.8 7 8 7 7
6 NC-Sunshine NCStateUniv 6.7 6 9 8 6
7 G83xNC-58 NCStateUniv 6.6 7 9 6 6
8 Dasher II Seminis 6.4 7 8 6 6
9 G83xNC-63 NCStateUniv 6.4 7 9 6 6
10 PX147-10885 Seminis 6.3 7 8 5 7
11 NC-Stratford NCStateUniv 6.3 6 8 6 7
12 WSA-9119 WesternSeed 6.3 6 9 7 6
13 Poinsett 76 CornellUniv 5.9 6 7 6 6
14 Marketmore 76 Check 5.9 6 7 5 7
15 General Lee HarrisMoran 5.7 6 7 5 6
16 G57xNC-58 NCStateUniv 5.7 6 8 6 5
17 G57xNC-59 NCStateUniv 5.3 6 8 5 5
18 G57xNC-63 NCStateUniv 5.3 5 8 6 5
19 G57xNC-62 NCStateUniv 5.3 5 8 6 5
20 Cherokee 87 Check 5.2 6 6 5 5
21 Ashley Check 5.2 6 5 6 4
_________________________________________________________________________________
CV (%) 8.0 14 6 15 14
Mean 6.2 6 8 6 6
LSD (5%) 0.8 1 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) = 0.44**
Table 23. Stage 3 spring 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 PX147-10896 Seminis 7.6 2.1 0.72 H H K K T H
2 Panther Nunhems 7.3 2.1 0.59 H K G T T I
3 G83xNC-62 NCStateUniv 7.9 2.1 0.72 C K T K T K
4 G83xNC-59 NCStateUniv 6.9 1.9 0.52 H H H K T C
5 WSA-8119 WesternSeed 7.4 1.7 0.48 T H T H T K
6 NC-Sunshine NCStateUniv 7.0 1.9 0.55 H H H K T D
7 G83xNC-58 NCStateUniv 7.4 2.0 0.65 K K H K T D
8 Dasher II Seminis 7.2 1.9 0.58 K K H H H C
9 G83xNC-63 NCStateUniv 7.4 1.9 0.58 K K T H T C
10 PX147-10885 Seminis 7.7 1.9 0.63 T H H K T T
11 NC-Stratford NCStateUniv 7.1 2.0 0.61 H H H K D D
12 WSA-9119 WesternSeed 7.0 1.8 0.48 C D T H H G
13 Poinsett 76 CornellUniv 6.2 1.8 0.43 H H H L T D
14 Marketmore 76 Check 6.5 1.7 0.43 K K H T T K
15 General Lee HarrisMoran 7.3 2.0 0.63 H H H K T D
16 G57xNC-58 NCStateUniv 7.1 1.9 0.54 C H H H D C
17 G57xNC-59 NCStateUniv 6.4 1.9 0.53 H H H L K D
18 G57xNC-63 NCStateUniv 7.2 1.9 0.54 N H H H D C
19 G57xNC-62 NCStateUniv 7.0 1.9 0.52 C H H H D D
20 Cherokee 87 Check 7.2 2.0 0.60 M H H H M D
21 Ashley Check 6.5 1.8 0.48 M H H L M M
_________________________________________________________________________________
CV (%) 5.6 6.3 15.90
Mean 7.1 1.9 0.56
LSD (5%) 0.7 0.2 0.15
_________________________________________________________________________________
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 24. Stage 3 spring 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 PX147-10896 Seminis 8 58 31 7 9
2 PX147-10885 Seminis 8 35 25 9 9
3 Panther Nunhems 8 17 11 7 8
4 General Lee HarrisMoran 7 40 23 8 8
5 G83xNC-59 NCStateUniv 7 37 23 7 5
6 Dasher II Seminis 7 61 31 7 8
7 Marketmore 76 Check 7 2 4 4 4
8 WSA-8119 WesternSeed 7 15 19 7 7
9 G57xNC-58 NCStateUniv 7 24 13 6 9
10 G83xNC-58 NCStateUniv 7 78 44 5 6
11 WSA-9119 WesternSeed 7 13 10 8 7
12 Poinsett 76 CornellUniv 7 14 12 8 5
13 Cherokee 87 Check 7 34 20 6 6
14 Ashley Check 7 4 3 6 3
15 G83xNC-62 NCStateUniv 7 54 27 5 6
16 G83xNC-63 NCStateUniv 6 48 29 6 4
17 G57xNC-62 NCStateUniv 6 15 13 8 9
18 G57xNC-59 NCStateUniv 6 10 7 5 9
19 G57xNC-63 NCStateUniv 5 19 13 5 9
20 NC-Stratford NCStateUniv 4 82 42 6 5
21 NC-Sunshine NCStateUniv 4 49 32 7 6
_________________________________________________________________________________
CV (%) 9 58 54 14 12
Mean 7 34 21 7 7
LSD (5%) 1 32 18 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) = 0.22ns
Table 25. Stage 3 spring slicer trial - disease ratings (cultigens ranked
by average disease resistance).z
_________________________________________________________________________________
Cultivar Seed Downy
Rank or line source mildew
_________________________________________________________________________________
1 PX147-10885 Seminis 1.0
2 WSA-9119 WesternSeed 1.3
3 Poinsett 76 CornellUniv 1.3
4 WSA-8119 WesternSeed 1.7
5 G57xNC-58 NCStateUniv 2.0
6 Cherokee 87 Check 2.0
7 G57xNC-62 NCStateUniv 2.0
8 G57xNC-59 NCStateUniv 2.0
9 G57xNC-63 NCStateUniv 2.0
10 General Lee HarrisMoran 2.3
11 Dasher II Seminis 2.3
12 G83xNC-59 NCStateUniv 2.7
13 NC-Stratford NCStateUniv 2.7
14 G83xNC-63 NCStateUniv 3.0
15 Panther Nunhems 3.3
16 NC-Sunshine NCStateUniv 3.3
17 PX147-10896 Seminis 3.7
18 G83xNC-58 NCStateUniv 3.7
19 Ashley Check 3.7
20 G83xNC-62 NCStateUniv 3.7
21 Marketmore 76 Check 4.3
_________________________________________________________________________________
CV (%) 19.0
Mean 2.6
LSD (5%) 0.8
_________________________________________________________________________________
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) = -0.24ns
Table 26. Stage 3 spring 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 G83xNC-58 NCStateUniv 5.9 5.5 8.6 8.6
2 Dasher II Seminis 5.8 5.4 7.9 7.4
3 NC-Stratford NCStateUniv 5.8 5.5 9.2 8.2
4 PX147-10896 Seminis 5.7 5.4 7.4 8.2
5 G83xNC-62 NCStateUniv 5.6 5.2 8.9 9.8
6 G83xNC-63 NCStateUniv 5.4 5.1 9.2 9.5
7 PX147-10885 Seminis 5.2 5.0 8.8 8.5
8 NC-Sunshine NCStateUniv 5.1 4.9 9.8 10.3
9 G83xNC-59 NCStateUniv 5.1 4.8 8.6 9.1
10 General Lee HarrisMoran 5.0 4.7 11.5 10.8
11 Panther Nunhems 4.9 4.6 9.6 10.7
12 WSA-9119 WesternSeed 4.7 4.5 10.3 10.3
13 Cherokee 87 Check 4.6 4.4 12.8 11.5
14 Poinsett 76 CornellUniv 4.3 4.1 11.9 11.4
15 WSA-8119 WesternSeed 4.3 4.2 9.9 10.3
16 G57xNC-58 NCStateUniv 3.9 3.7 13.1 12.7
17 Ashley Check 3.9 3.7 15.2 15.5
18 G57xNC-63 NCStateUniv 3.7 3.6 14.0 13.5
19 Marketmore 76 Check 3.6 3.5 15.2 16.4
20 G57xNC-59 NCStateUniv 3.6 3.5 14.6 14.1
21 G57xNC-62 NCStateUniv 3.5 3.4 14.7 14.3
_________________________________________________________________________________
CV (%) 15.0 14.1 20.8 21.7
Mean 4.7 4.5 11.0 11.0
LSD (5%) 1.2 1.1 3.8 3.9
_________________________________________________________________________________
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) = 0.89**
Correlation (Marketable yield with ARI1) = -0.74**