NCSU Cucumber Breeding Report - 2005
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
2005
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 11 July, and harvested 4 times
(Mondays and Thursdays) between 22 August and 9 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 Dasher II Seminis
02 BCS-003 Harris Moran
03 G57xNC-63 NC State
04 NUN-1503 Nunhems
05 G83xNC-63 NC State
06 Talladega Seminis
07 NUN-2002 Nunhems
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 Dasher II Seminis 62 111 38 29 26
2 BCS-003 HarrisMoran 55 112 36 25 26
3 Talladega Seminis 55 110 32 36 26
4 NUN-2002 Nunhems 54 102 32 37 24
5 GeneralLee4440 HarrisMoran 52 95 35 36 26
6 G57xNC-63 NC State 51 118 25 42 26
7 G83xNC-58 NC State 48 85 29 46 24
8 Stratford58x59 NC State 47 95 24 49 25
9 PX350-2409 Seminis 45 84 41 23 26
10 G57xNC-58 NC State 44 100 20 51 26
11 NUN-2001 Nunhems 42 110 25 30 26
12 G83xNC-63 NC State 42 88 28 43 23
13 Stonewall HarrisMoran 41 74 32 43 25
14 G57xNC-59 NC State 38 75 24 50 26
15 HMX-5410 HarrisMoran 38 81 32 29 26
16 Intimidator Seminis 37 73 30 40 24
17 Sunshine(62x63 NC State 36 86 26 40 26
18 G83xNC-59 NC State 33 72 22 47 25
19 NUN-1503 Nunhems 32 101 16 50 25
20 Panther Nunhems 29 71 25 33 26
21 G57xNC-62 NC State 29 76 16 56 25
22 Ashley ClemsonUniv 29 54 36 27 26
23 G83xNC-62 NC State 28 70 21 50 24
24 Poinsett 76 CornellUniv 24 76 18 43 25
25 Cherokee 87 CornellUniv 17 56 12 58 24
26 Spacemaster 80 CornellUniv 17 41 25 41 26
27 Marketmore 76 CornellUniv 13 31 32 27 26
28 Bush Champion Burpee 3 10 12 64 26
_________________________________________________________________________________
CV (%) 49 36 32 28 7
Mean 37 81 27 41 25
LSD (5%) 30 47 14 18 3
_________________________________________________________________________________
Correlation (Marketable yield with % culls) = -0.49**
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 Dasher II Seminis 58 52 78 74 83 78 105 94 111 100
2 G57xNC-58 NC State 63 60 78 73 88 85 95 93 100 100
3 NUN-1503 Nunhems 60 58 77 76 85 83 96 95 101 99
4 G57xNC-63 NC State 54 37 74 54 92 77 112 90 118 100
5 Stratford58x59 NC State 48 51 73 76 78 81 88 92 94 99
6 BCS-003 HarrisMoran 51 46 72 65 79 72 97 86 108 96
7 Talladega Seminis 36 32 65 58 91 84 102 92 108 98
8 G57xNC-62 NC State 42 55 59 76 64 83 70 92 76 99
9 GeneralLee4440 HarrisMoran 18 20 52 55 74 78 83 87 94 99
10 NUN-2001 Nunhems 15 10 50 42 77 74 92 85 109 99
11 G83xNC-63 NC State 21 24 49 51 67 74 75 83 87 99
12 Sunshine(62x63 NC State 30 34 45 49 64 74 78 88 82 95
13 Intimidator Seminis 21 31 44 62 59 80 67 90 73 100
14 NUN-2002 Nunhems 7 6 43 38 75 72 91 90 101 99
15 Stonewall HarrisMoran 19 28 42 56 61 84 68 93 71 97
16 G83xNC-62 NC State 13 19 36 51 46 67 59 84 70 100
17 Panther Nunhems 15 24 35 53 51 73 61 85 69 98
18 HMX-5410 HarrisMoran 17 22 33 41 51 69 67 83 79 98
19 G83xNC-59 NC State 11 19 33 49 41 60 62 82 70 96
20 PX350-2409 Seminis 7 8 31 38 56 66 77 92 81 97
21 Cherokee 87 CornellUniv 15 27 29 52 44 77 54 97 55 99
22 G83xNC-58 NC State 5 4 27 37 54 76 81 97 85 100
23 G57xNC-59 NC State 8 13 22 34 44 62 59 85 73 97
24 Poinsett 76 CornellUniv 10 13 20 26 51 70 66 88 74 98
25 Ashley ClemsonUniv 1 1 12 24 38 74 48 89 53 99
26 Spacemaster 80 CornellUniv 1 3 4 10 17 50 28 77 40 99
27 Bush Champion Burpee 0 0 1 7 4 27 6 44 10 67
28 Marketmore 76 CornellUniv 0 0 0 0 4 19 13 52 25 85
_________________________________________________________________________________
CV (%) 66 48 47 30 40 19 38 13 36 12
Mean 23 25 42 47 58 70 71 86 79 97
LSD (5%) 25 20 32 23 39 22 44 19 47 18
_________________________________________________________________________________
Correlation (Marketable yield with yield in harvests 1-2) = 0.83**
Correlation (Marketable yield with % of yield in harvests 1-2) = 0.45**
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 G83xNC-63 NC State 7.0 7 8 7 6
2 Bush Champion Burpee 7.0 7 7 7 7
3 Stonewall HarrisMoran 6.9 7 8 7 7
4 PX350-2409 Seminis 6.7 7 7 7 6
5 GeneralLee4440 HarrisMoran 6.6 6 7 7 6
6 HMX-5410 HarrisMoran 6.4 7 8 7 6
7 NUN-1503 Nunhems 6.4 6 7 7 7
8 G57xNC-59 NC State 6.3 6 7 6 6
9 G57xNC-63 NC State 6.3 6 7 7 6
10 Marketmore 76 CornellUniv 6.3 5 6 8 6
11 Panther Nunhems 6.2 6 7 6 6
12 NUN-2002 Nunhems 6.2 6 7 7 6
13 Intimidator Seminis 6.1 6 6 6 6
14 NUN-2001 Nunhems 6.1 6 5 7 6
15 Sunshine(62x63 NC State 6.0 5 8 8 5
16 Talladega Seminis 5.9 6 7 6 6
17 Dasher II Seminis 5.9 5 7 6 6
18 G57xNC-62 NC State 5.9 5 7 7 5
19 BCS-003 HarrisMoran 5.7 5 7 6 5
20 G57xNC-58 NC State 5.7 5 6 7 5
21 G83xNC-62 NC State 5.6 5 7 6 5
22 Poinsett 76 CornellUniv 5.6 5 7 5 6
23 Stratford58x59 NC State 5.4 5 8 7 5
24 G83xNC-59 NC State 5.4 5 7 6 5
25 G83xNC-58 NC State 5.3 5 7 6 5
26 Ashley ClemsonUniv 5.2 5 6 6 5
27 Spacemaster 80 CornellUniv 5.1 4 7 6 5
28 Cherokee 87 CornellUniv 4.4 4 5 5 4
_________________________________________________________________________________
CV (%) 10.2 15 13 12 13
Mean 6.0 6 7 7 6
LSD (5%) 1.0 1 1 1 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) = 0.10ns
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 G83xNC-63 NC State 8.1 2.1 0.90 T D K K K G
2 Bush Champion Burpee 8.2 1.7 0.70 K K G L L T
3 Stonewall HarrisMoran 8.2 2.0 0.70 G K G K T T
4 PX350-2409 Seminis 7.4 1.9 0.63 H K T T H K
5 GeneralLee4440 HarrisMoran 7.8 2.0 0.69 T T M C K T
6 HMX-5410 HarrisMoran 7.4 1.9 0.63 H H T K K H
7 NUN-1503 Nunhems 8.5 2.1 0.77 D K T G D D
8 G57xNC-59 NC State 7.7 2.0 0.71 K M G H K T
9 G57xNC-63 NC State 8.0 2.1 0.72 K H D G K H
10 Marketmore 76 CornellUniv 7.5 1.9 0.58 T T T K K K
11 Panther Nunhems 7.9 2.0 0.69 T T D K G I
12 NUN-2002 Nunhems 8.2 1.9 0.66 G T G T K T
13 Intimidator Seminis 7.8 2.0 0.68 Y H H T K M
14 NUN-2001 Nunhems 7.9 2.0 0.69 T T D H K M
15 Sunshine(62x63 NC State 7.4 2.0 0.66 H H H C K D
16 Talladega Seminis 7.3 1.9 0.63 H K D K D T
17 Dasher II Seminis 7.3 1.9 0.62 K H D H T H
18 G57xNC-62 NC State 8.0 2.0 0.69 T H D D K T
19 BCS-003 HarrisMoran 7.3 2.0 0.67 H M M D D H
20 G57xNC-58 NC State 7.5 2.0 0.64 K H H I T D
21 G83xNC-62 NC State 8.0 2.1 0.76 H T D K K H
22 Poinsett 76 CornellUniv 6.9 1.9 0.57 T D D K H H
23 Stratford58x59 NC State 7.0 2.0 0.61 H M D K H I
24 G83xNC-59 NC State 7.6 2.0 0.66 H H D C D H
25 G83xNC-58 NC State 7.8 2.0 0.83 H H G C D K
26 Ashley ClemsonUniv 8.3 2.1 0.82 M A M H H H
27 Spacemaster 80 CornellUniv 6.7 1.9 0.51 K D H H H D
28 Cherokee 87 CornellUniv 6.9 2.1 0.62 M M D A H H
_________________________________________________________________________________
CV (%) 5.5 4.2 14.10
Mean 7.7 2.0 0.68
LSD (5%) 0.7 0.1 0.16
_________________________________________________________________________________
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-58 NC State 9 78 73 8 8
2 G57xNC-62 NC State 9 59 76 7 6
3 NUN-1503 Nunhems 8 77 76 8 7
4 Talladega Seminis 8 65 58 9 7
5 Stonewall HarrisMoran 7 42 56 8 8
6 BCS-003 HarrisMoran 7 72 65 8 9
7 G57xNC-63 NC State 6 74 54 8 7
8 Intimidator Seminis 6 44 62 8 8
9 NUN-2002 Nunhems 6 43 38 8 8
10 Dasher II Seminis 6 78 74 8 8
11 HMX-5410 HarrisMoran 6 33 41 7 7
12 Sunshine(62x63 NC State 6 45 49 6 7
13 GeneralLee4440 HarrisMoran 5 52 55 8 7
14 Cherokee 87 CornellUniv 5 29 52 8 7
15 G83xNC-63 NC State 5 49 51 7 5
16 G57xNC-59 NC State 5 22 34 7 6
17 PX350-2409 Seminis 5 31 38 7 8
18 NUN-2001 Nunhems 5 50 42 8 6
19 G83xNC-62 NC State 5 36 51 7 5
20 Stratford58x59 NC State 5 73 76 7 5
21 Panther Nunhems 4 35 53 7 7
22 Spacemaster 80 CornellUniv 4 4 10 7 8
23 G83xNC-59 NC State 4 33 49 7 6
24 Marketmore 76 CornellUniv 4 0 0 7 6
25 Poinsett 76 CornellUniv 4 20 26 7 8
26 G83xNC-58 NC State 4 27 37 7 5
27 Bush Champion Burpee 4 1 7 5 7
28 Ashley ClemsonUniv 3 12 24 7 6
_________________________________________________________________________________
CV (%) 24 47 30 11 14
Mean 5 42 47 7 7
LSD (5%) 2 32 23 1 2
_________________________________________________________________________________
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) = 0.33**
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 BCS-003 HarrisMoran 3.7
2 Panther Nunhems 3.7
3 NUN-2002 Nunhems 4.0
4 HMX-5410 HarrisMoran 4.0
5 Dasher II Seminis 4.3
6 NUN-2001 Nunhems 4.3
7 Marketmore 76 CornellUniv 4.3
8 Stonewall HarrisMoran 4.7
9 G83xNC-62 NC State 4.7
10 Ashley ClemsonUniv 4.7
11 Intimidator Seminis 5.0
12 G83xNC-63 NC State 5.0
13 G83xNC-59 NC State 5.0
14 Poinsett 76 CornellUniv 5.0
15 NUN-1503 Nunhems 5.3
16 Sunshine(62x63 NC State 5.3
17 GeneralLee4440 HarrisMoran 5.3
18 G83xNC-58 NC State 5.3
19 Cherokee 87 CornellUniv 5.7
20 G57xNC-59 NC State 5.7
21 PX350-2409 Seminis 5.7
22 G57xNC-58 NC State 6.0
23 G57xNC-62 NC State 6.0
24 Talladega Seminis 6.0
25 G57xNC-63 NC State 6.0
26 Stratford58x59 NC State 6.0
27 Spacemaster 80 CornellUniv 6.7
28 Bush Champion Burpee 7.0
_________________________________________________________________________________
CV (%) 18.1
Mean 5.2
LSD (5%) 1.5
_________________________________________________________________________________
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) = -0.16ns
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 Dasher II Seminis 5.0 5.0 10.3 9.1
2 BCS-003 HarrisMoran 4.9 4.8 11.3 9.9
3 G57xNC-63 NC State 4.7 4.5 13.3 13.7
4 NUN-1503 Nunhems 4.6 4.7 11.5 10.7
5 G83xNC-63 NC State 4.6 4.5 9.7 10.6
6 Talladega Seminis 4.5 4.4 13.5 13.5
7 NUN-2002 Nunhems 4.5 4.2 11.6 11.6
8 GeneralLee4440 HarrisMoran 4.4 4.4 10.3 11.1
9 G57xNC-58 NC State 4.4 4.4 15.2 14.2
10 Stratford58x59 NC State 4.4 4.5 15.5 13.9
11 Stonewall HarrisMoran 4.3 4.5 9.6 10.7
12 NUN-2001 Nunhems 4.3 4.1 12.6 12.3
13 HMX-5410 HarrisMoran 4.2 4.1 12.1 12.2
14 PX350-2409 Seminis 4.1 4.0 12.1 13.8
15 Sunshine(62x63 NC State 4.0 4.0 14.3 14.1
16 Panther Nunhems 4.0 4.1 13.3 12.8
17 Intimidator Seminis 4.0 4.2 13.2 12.9
18 G57xNC-62 NC State 4.0 4.3 15.7 15.2
19 G83xNC-62 NC State 3.7 3.8 16.4 15.5
20 G57xNC-59 NC State 3.7 3.7 14.6 15.9
21 G83xNC-58 NC State 3.7 3.6 17.6 17.2
22 G83xNC-59 NC State 3.6 3.7 17.3 16.5
23 Poinsett 76 CornellUniv 3.3 3.3 17.6 17.1
24 Ashley ClemsonUniv 3.1 3.1 19.8 19.5
25 Marketmore 76 CornellUniv 3.0 2.7 16.2 17.6
26 Cherokee 87 CornellUniv 2.9 3.2 21.8 20.2
27 Bush Champion Burpee 2.7 2.6 16.7 20.2
28 Spacemaster 80 CornellUniv 2.5 2.4 23.1 23.9
_________________________________________________________________________________
CV (%) 14.9 12.5 20.9 20.3
Mean 4.0 4.0 14.5 14.5
LSD (5%) 1.0 0.8 5.0 4.8
_________________________________________________________________________________
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) = 0.90**
Correlation (Marketable yield with ARI1) = -0.51**