NCSU Cucumber Breeding Report - 1999
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
1999
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 30 June, and harvested 3 times
(Mondays and Thursdays) between 19 August through 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:
1 Daytona Seminis
2 SCU-6601 Sakata Seed
3 Prolific Sakata Seed
4 Poinsett 76 Cornell Univ
5 Revenue (4289) Harris Moran
6 Panther (3727) Sunseeds
7 Dasher II Seminis
8 SRQS-2387 Sunseeds
9 Greensleeves Harris Moran
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 K7-605 SakataSeed 167 289 49 15 25
2 Revenue (4289) HarrisMoran 162 239 62 9 23
3 Panther(3727) Sunseeds 151 229 53 20 25
4 SRQS-2387 Sunseeds 150 259 47 18 23
5 Daytona Seminis 150 284 46 13 23
6 Greensleeves HarrisMoran 148 248 51 15 24
7 SCU-6601 SakataSeed 145 262 42 23 26
8 Poinsett 76 CornellUniv 142 260 44 19 22
9 Prolific SakataSeed 136 238 47 17 25
10 Turbo Seminis 134 225 53 10 26
11 GeneralLee(4440 HarrisMoran 134 252 47 12 25
12 Dasher II Seminis 130 244 46 15 26
13 SRQS-2644 Sunseeds 130 221 47 17 26
14 SRQS-2389 Sunseeds 126 232 45 19 26
15 XP-1825 Seminis 124 240 43 17 23
16 SRQS-2646 Sunseeds 124 208 49 18 25
17 XP-1824 Seminis 122 201 52 15 23
18 SRQS-2645 Sunseeds 107 195 44 19 24
19 Thunder(1700) Seminis 106 199 42 22 24
20 Indy Seminis 77 154 25 17 26
21 Ashley Check 63 143 31 31 25
_________________________________________________________________________________
LSD (5%) 59 94 17 12 4
Mean 129 230 46 17 25
CV (%) 28 25 22 41 9
_________________________________________________________________________________
Correlation (Marketable yield with % culls) = -0.36**
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 Prolific SakataSeed 92 36 134 55 187 78 218 91 222 93
2 Dasher II Seminis 111 45 123 51 147 62 209 84 224 92
3 Daytona Seminis 81 28 120 42 164 57 244 86 275 97
4 Poinsett 76 CornellUniv 72 27 116 44 165 64 211 81 234 90
5 SRQS-2646 Sunseeds 91 48 109 57 126 63 187 90 192 93
6 SRQS-2645 Sunseeds 100 53 108 57 140 72 187 96 191 98
7 Revenue (4289) HarrisMoran 69 27 106 43 160 67 204 86 213 90
8 SCU-6601 SakataSeed 73 29 106 41 168 63 237 90 248 95
9 Panther(3727) Sunseeds 83 37 104 46 140 61 185 81 204 89
10 XP-1824 Seminis 35 19 95 56 138 73 163 84 176 92
11 Thunder(1700) Seminis 79 42 95 49 109 55 147 73 174 86
12 SRQS-2389 Sunseeds 59 24 90 38 144 61 205 88 218 94
13 Greensleeves HarrisMoran 57 24 86 35 132 52 197 79 227 91
14 SRQS-2387 Sunseeds 60 25 84 34 128 50 216 85 238 92
15 GeneralLee(4440 HarrisMoran 56 24 81 34 151 61 210 84 224 89
16 XP-1825 Seminis 48 19 75 31 132 55 197 82 221 92
17 K7-605 SakataSeed 34 14 52 21 135 49 230 80 271 94
18 Ashley Check 19 9 44 24 64 39 114 75 125 85
19 Indy Seminis 25 15 41 22 93 42 126 56 136 60
20 SRQS-2644 Sunseeds 20 22 40 31 127 64 157 77 175 84
21 Turbo Seminis 19 9 31 14 73 33 181 81 212 94
_________________________________________________________________________________
LSD (5%) 62 24 62 25 73 23 85 23 88 22
Mean 61 27 88 39 134 58 191 82 209 90
CV (%) 61 53 43 38 33 24 27 17 25 15
_________________________________________________________________________________
Correlation (Marketable yield with yield in harvests 1-2) = 0.23ns
Correlation (Marketable yield with % of yield in harvests 1-2) = -0.18ns
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 Greensleeves HarrisMoran 7.7 8 7 8 8
2 Turbo Seminis 7.4 8 7 7 7
3 SCU-6601 SakataSeed 7.4 7 7 7 8
4 Indy Seminis 7.2 8 8 7 7
5 SRQS-2645 Sunseeds 7.2 7 7 6 8
6 Prolific SakataSeed 7.1 8 7 7 7
7 SRQS-2644 Sunseeds 7.1 7 7 7 7
8 SRQS-2389 Sunseeds 7.1 8 7 8 6
9 GeneralLee(4440 HarrisMoran 7.0 8 8 7 7
10 Daytona Seminis 6.9 7 7 6 7
11 Revenue (4289) HarrisMoran 6.9 7 7 7 6
12 Thunder(1700) Seminis 6.9 7 7 7 7
13 Panther(3727) Sunseeds 6.8 7 7 7 6
14 SRQS-2646 Sunseeds 6.8 7 7 7 6
15 Poinsett 76 CornellUniv 6.7 7 7 6 7
16 Dasher II Seminis 6.6 8 7 6 6
17 K7-605 SakataSeed 6.6 8 8 6 6
18 XP-1824 Seminis 6.4 8 7 6 6
19 SRQS-2387 Sunseeds 6.4 8 7 6 6
20 XP-1825 Seminis 6.3 8 7 5 6
21 Ashley Check 5.7 7 6 5 5
______________________________________________________________________________
LSD (5%) 0.8 1 1 1 1
Mean 6.9 8 7 7 7
CV (%) 7.0 8 10 9 14
_________________________________________________________________________________
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) = 0.15ns
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 (0.1") (0.1") (lb.) 2 4 6 2 4 6
_________________________________________________________________________________
1 Greensleeves HarrisMoran 8.2 2.1 0.80 T T H K K K
2 Turbo Seminis 8.3 2.2 0.87 K M K K K G
3 SCU-6601 SakataSeed 8.7 2.2 0.93 K M K M K M
4 Indy Seminis 8.3 2.1 0.85 T C K K K K
5 SRQS-2645 Sunseeds 9.1 2.3 0.95 K H G T K K
6 Prolific SakataSeed 9.0 2.3 0.96 M M H K K O
7 SRQS-2644 Sunseeds 8.1 2.1 0.82 H H G K K K
8 SRQS-2389 Sunseeds 8.7 2.3 1.03 W H K H W H
9 GeneralLee(4440 HarrisMoran 8.2 2.2 0.88 M C H K M K
10 Daytona Seminis 8.2 2.2 0.86 K C H T K K
11 Revenue (4289) HarrisMoran 8.4 2.2 0.92 H M D K H T
12 Thunder(1700) Seminis 8.5 2.2 0.86 T C K K K H
13 Panther(3727) Sunseeds 8.1 2.2 0.86 K M M K K H
14 SRQS-2646 Sunseeds 8.1 2.3 0.93 H H H D M C
15 Poinsett 76 CornellUniv 7.8 2.2 0.74 K C H H H C
16 Dasher II Seminis 8.3 2.3 0.89 H H H K T M
17 K7-605 SakataSeed 8.1 2.2 0.77 H H T K M G
18 XP-1824 Seminis 7.9 2.2 0.84 H H O K K D
19 SRQS-2387 Sunseeds 8.0 2.3 0.89 H H H K K T
20 XP-1825 Seminis 8.1 2.3 0.91 H H H K K T
21 Ashley Check 7.7 2.1 0.71 M H M H M X
_________________________________________________________________________________
LSD (5%) 0.6 0.1 0.12
Mean 8.2 2.2 0.86
CV (%) 4.1 3.7 8.89
_________________________________________________________________________________
z Defects were rated as follows (giving primary and secondary for each harvest):
A - wArty fruit J &endash; 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 SRQS-2387 Sunseeds 9 84 34 7 7
2 SRQS-2389 Sunseeds 9 90 38 6 7
3 SRQS-2646 Sunseeds 9 109 57 6 6
4 Panther(3727) Sunseeds 9 104 46 6 7
5 Greensleeves HarrisMoran 9 86 35 6 6
6 SCU-6601 SakataSeed 8 106 41 7 7
7 K7-605 SakataSeed 8 52 21 6 6
8 Dasher II Seminis 8 123 51 7 7
9 GeneralLee(4440 HarrisMoran 8 81 34 7 7
10 Daytona Seminis 8 120 42 7 7
11 Thunder(1700) Seminis 8 95 49 7 6
12 Indy Seminis 8 41 22 6 7
13 SRQS-2644 Sunseeds 8 40 31 6 8
14 Turbo Seminis 7 31 14 6 7
15 Prolific SakataSeed 7 134 55 8 7
16 SRQS-2645 Sunseeds 7 108 57 6 8
17 Revenue (4289) HarrisMoran 7 106 43 5 6
18 XP-1824 Seminis 6 95 56 7 7
19 XP-1825 Seminis 5 75 31 5 7
20 Poinsett 76 CornellUniv 5 116 44 6 8
21 Ashley Check 3 44 24 5 7
_________________________________________________________________________________
LSD (5%) 2 53 18 1 1
Mean 7 86 28 6 7
CV (%) 17 38 40 12 11
_________________________________________________________________________________
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) = 0.17ns
Table 36. Stage 4 summer slicer trial - disease ratings (cultigens ranked
by anthracnose resistance).z
_________________________________________________________________________________
Cultivar Seed Mean Anthrac- Downy
Rank or line source rating nose mildew
_________________________________________________________________________________
1 SCU-6601 SakataSeed 1.0 1 2
2 Ashley Check 1.0 1 2
3 XP-1825 Seminis 1.3 1 1
4 SRQS-2387 Sunseeds 1.3 1 1
5 Turbo Seminis 1.3 1 1
6 Poinsett 76 CornellUniv 1.7 2 1
7 K7-605 SakataSeed 1.7 2 2
8 GeneralLee(4440 HarrisMoran 2.0 2 2
9 Daytona Seminis 2.3 2 3
10 Revenue (4289) HarrisMoran 2.7 3 2
11 SRQS-2646 Sunseeds 2.7 3 3
12 Panther(3727) Sunseeds 2.7 3 3
13 SRQS-2644 Sunseeds 3.3 3 2
14 Dasher II Seminis 3.3 3 3
15 Thunder(1700) Seminis 3.3 3 3
16 SRQS-2389 Sunseeds 3.3 3 3
17 Greensleeves HarrisMoran 3.7 4 2
18 XP-1824 Seminis 3.7 4 2
19 Prolific SakataSeed 3.7 4 3
20 Indy Seminis 4.7 5 4
21 SRQS-2645 Sunseeds 5.0 5 3
_______________________________________________________________________________
LSD (5%) 2.7 3 2
Mean 2.7 3 2
CV (%) 61.6 62 47
_________________________________________________________________________________
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 anthracnose rating) = -0.47**
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 Daytona Seminis 7.7 6.9 9.9 9.3
2 SCU-6601 SakataSeed 7.7 6.9 7.7 7.9
3 Prolific SakataSeed 7.6 6.8 9.3 9.4
4 Poinsett 76 CornellUniv 7.6 6.8 10.4 9.6
5 Revenue (4289) HarrisMoran 7.5 6.8 9.8 9.9
6 Panther(3727) Sunseeds 7.3 6.6 10.3 10.4
7 Dasher II Seminis 7.3 6.5 11.2 10.8
8 SRQS-2387 Sunseeds 7.2 6.5 11.5 10.9
9 Greensleeves HarrisMoran 7.0 6.5 8.3 9.4
10 SRQS-2646 Sunseeds 7.0 6.5 11.0 10.5
11 GeneralLee(4440 HarrisMoran 7.0 6.4 10.3 10.3
12 K7-605 SakataSeed 6.9 6.4 11.1 10.5
13 SRQS-2389 Sunseeds 6.8 6.2 10.1 10.8
14 XP-1825 Seminis 6.7 6.1 12.0 11.7
15 XP-1824 Seminis 6.5 6.2 12.7 12.4
16 SRQS-2645 Sunseeds 6.5 6.1 11.7 12.1
17 Thunder(1700) Seminis 6.5 6.0 12.2 12.2
18 Turbo Seminis 6.3 5.9 9.9 11.0
19 SRQS-2644 Sunseeds 6.0 5.8 12.3 12.3
20 Indy Seminis 5.1 4.8 13.1 14.1
21 Ashley Check 5.1 4.7 16.3 15.4
_________________________________________________________________________________
LSD (5%) 1.6 1.2 4.2 4.1
Mean 6.8 6.3 11.0 11.0
CV (%) 14.6 12.2 23.3 22.8
_________________________________________________________________________________
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) = 0.84**
Correlation (Marketable yield with ARI1) = -0.62**