NCSU Cucumber Breeding Report - 2004
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**