NCSU Cucumber Breeding Report - 2000
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
2000
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 24 April, and harvested 6 times
(Mondays and Thursdays) between 22 June through 10 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:
1 XP3501217 Seminis
2 HMX-8416 Harris Moran
3 Revenue Harris Moran
4 Daytona Seminis
5 EX4676088 Seminis
6 SVR4675898 Seminis
7 SRQS-2387 SunSeeds
Table 16. 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 HMX-8416 HarrisMoran 139 254 45 17 24
2 XP3501217 Seminis 130 263 36 25 20
3 Revenue (4289) HarrisMoran 130 244 41 22 24
4 Daytona Seminis 118 252 39 16 24
5 Greensleeves(0431 HarrisMoran 118 240 40 15 22
6 General Lee(4440) HarrisMoran 116 228 42 14 22
7 EX4676088 Seminis 116 236 39 20 24
8 Marketmore 76 Check 114 179 61 5 19
9 Turbo Seminis 108 239 40 11 24
10 SRQS-2387 SunSeeds 106 254 30 26 19
11 SVR4675898 Seminis 99 218 33 28 14
12 Indy Seminis 98 211 38 17 20
13 Thunder(1700) Seminis 97 202 37 23 24
14 Panther(3727) SunSeeds 96 215 35 21 23
15 SRQS-2646 SunSeeds 96 247 30 19 23
16 Dasher II Seminis 90 211 35 16 21
17 SRQS-2389 SunSeeds 87 198 33 25 23
18 EX4675958 Seminis 79 179 28 34 22
19 Poinsett 76 CornellUniv 58 200 23 22 23
_________________________________________________________________________________
LSD (5%) 57 75 12 10 8
Mean 105 225 37 20 22
CV (%) 33 20 20 30 23
_________________________________________________________________________________
Correlation (Marketable yield with % culls) = -0.27*
Table 17. 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 XP3501217 Seminis 94 37 131 51 142 57 210 79 238 91
2 HMX-8416 HarrisMoran 21 9 99 38 137 54 173 68 223 88
3 Revenue (4289) HarrisMoran 17 7 92 38 134 55 177 73 209 86
4 Thunder(1700) Seminis 49 24 89 44 105 53 149 74 179 89
5 SVR4675898 Seminis 49 22 82 38 110 50 163 75 185 86
6 Greensleeves(0431 HarrisMoran 18 7 79 34 113 47 146 61 183 76
7 Daytona Seminis 10 4 77 30 120 47 174 69 195 77
8 EX4675958 Seminis 18 10 71 40 97 55 144 81 158 88
9 SRQS-2387 SunSeeds 20 8 71 29 108 43 172 67 210 82
10 EX4676088 Seminis 21 9 68 29 108 46 173 73 203 86
11 SRQS-2646 SunSeeds 11 4 67 27 123 50 161 65 202 82
12 General Lee(4440) HarrisMoran 8 3 62 24 100 41 162 71 188 83
13 Indy Seminis 13 7 59 28 94 45 139 67 175 83
14 Dasher II Seminis 9 4 57 26 80 38 126 60 157 74
15 Panther(3727) SunSeeds 5 2 54 24 98 45 147 68 169 79
16 SRQS-2389 SunSeeds 1 0 42 22 76 40 106 55 159 81
17 Turbo Seminis 2 1 29 12 107 44 154 65 194 82
18 Poinsett 76 CornellUniv 2 1 19 9 48 23 104 50 151 75
19 Marketmore 76 Check 1 1 16 9 34 19 96 54 128 71
_________________________________________________________________________________
LSD (5%) 19 7 48 18 49 16 64 14 63 10
Mean 19 8 66 29 102 100 151 67 184 82
CV (%) 59 51 43 37 29 0 25 12 20 7
________________________________________________________________________________
Correlation (Marketable yield with yield in harvests 1-2) = 0.54**
Correlation (Marketable yield with % of yield in harvests 1-2) = 0.16ns
Table 18. 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 HMX-8416 HarrisMoran 7.2 7 7 8 7
2 Daytona Seminis 7.2 7 8 8 7
3 Marketmore 76 Check 7.1 7 7 6 8
4 General Lee(4440) HarrisMoran 7.1 7 7 7 7
5 Indy Seminis 7.1 7 7 7 7
6 Turbo Seminis 7.1 7 6 7 7
7 Greensleeves(0431 HarrisMoran 7.0 7 6 7 7
8 SVR4675898 Seminis 6.9 7 8 7 7
9 SRQS-2389 SunSeeds 6.9 7 5 7 7
10 Thunder(1700) Seminis 6.7 7 8 6 7
11 XP3501217 Seminis 6.7 7 7 6 7
12 Revenue (4289) HarrisMoran 6.7 7 6 7 7
13 EX4676088 Seminis 6.7 7 7 7 6
14 EX4675958 Seminis 6.6 7 8 6 7
15 Poinsett 76 CornellUniv 6.3 7 7 6 6
16 Dasher II Seminis 6.3 6 7 7 6
17 Panther(3727) SunSeeds 6.1 5 6 7 6
18 SRQS-2646 SunSeeds 6.0 6 6 7 6
19 SRQS-2387 SunSeeds 5.9 6 7 5 6
_________________________________________________________________________________
LSD (5%) 1.0 1 2 1 2
Mean 6.7 7 7 7 7
CV (%) 9.9 13 13 12 16
_________________________________________________________________________________
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) = -0.04ns
Table 19. 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 (0.1") (0.1") (lb.) 2 4 6 2 4 6
_________________________________________________________________________________
1 HMX-8416 HarrisMoran 8.7 2.1 0.83 T T D K K T
2 Daytona Seminis 8.2 2.1 0.78 H K T T K K
3 Marketmore 76 Check 8.1 2.2 0.84 T H T K K K
4 General Lee(4440) HarrisMoran 8.1 2.2 0.79 H S H K K D
5 Indy Seminis 8.2 2.2 0.77 H K M T D K
6 Turbo Seminis 7.7 2.1 0.72 M K M T K T
7 Greensleeves(0431 HarrisMoran 8.4 2.1 0.85 H T T K K M
8 SVR4675898 Seminis 8.1 2.1 0.75 H H M K T H
9 SRQS-2389 SunSeeds 7.9 2.3 0.84 K D K D H D
10 Thunder(1700) Seminis 8.2 2.1 0.79 K D S T S K
11 XP3501217 Seminis 8.8 2.2 0.90 K S K T H T
12 Revenue (4289) HarrisMoran 8.3 2.2 0.82 T D I K T K
13 EX4676088 Seminis 8.6 2.2 0.84 T K T D H C
14 EX4675958 Seminis 8.7 2.2 0.91 T D T N T C
15 Poinsett 76 CornellUniv 7.3 2.0 0.63 H H H T T T
16 Dasher II Seminis 8.1 2.1 0.79 H H H T K M
17 Panther(3727) SunSeeds 7.6 2.0 0.67 H T 7 K K H
18 SRQS-2646 SunSeeds 8.0 2.2 0.80 H S H T D T
19 SRQS-2387 SunSeeds 7.7 2.1 0.71 H S H C H N
_________________________________________________________________________________
LSD (5%) 0.6 0.1 0.17
Mean 8.1 2.1 0.79
CV (%) 4.6 5.6 13.69
_________________________________________________________________________________
z Defects were rated as follows (giving primary and secondary for each harvest):
A - wArty fruit J Ð 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 20. Stage 3 spring slicer trial - fruit keeping ability data (cultigens
are ranked by % weight loss).
_________________________________________________________________________________
Weight Rating (0 - 9)y Firm-
Cultivar Seed loss Shriv- Rots & ness
Rank or line source (%)z eling disease (lb.)x
_________________________________________________________________________________
1 HMX-8416 HarrisMoran 16 3 1 16
2 Daytona Seminis 13 6 1 17
3 Marketmore 76 Check 12 4 1 18
4 General Lee(4440) HarrisMoran 11 4 1 17
5 Indy Seminis 12 3 3 18
6 Turbo Seminis 11 4 1 17
7 Greensleeves(0431 HarrisMoran 12 5 2 17
8 SVR4675898 Seminis 17 6 1 16
9 SRQS-2389 SunSeeds 23 7 4 15
10 Thunder(1700) Seminis 15 5 1 19
11 XP3501217 Seminis 14 4 1 17
12 Revenue (4289) HarrisMoran 13 4 1 16
13 EX4676088 Seminis 16 6 4 15
14 EX4675958 Seminis 13 6 3 19
15 Poinsett 76 CornellUniv 13 4 2 15
16 Dasher II Seminis 14 5 1 18
17 Panther(3727) SunSeeds 14 5 1 17
18 SRQS-2646 SunSeeds 17 5 4 15
19 SRQS-2387 SunSeeds 12 6 2 15
_________________________________________________________________________________
LSD (5%) 10 3 4 4
Mean 14 5 2 17
CV (%) 44 36 123 14
_________________________________________________________________________________
z After storage at room temperature for 8 days in open kraft paper bags.
y Shriveling & disease rated 0-9 (0=none, 1-3=slight, 4-6=moderate, 7-9=advanced).
x Firmness after storage using Magness-Taylor fruit punch tester.
Correlation (Weight loss with shriveling) = 0.47**
Correlation (Weight loss with firmness) = -0.53**
Table 21. 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 SRQS-2646 SunSeeds 8 67 27 7 8
2 EX4675958 Seminis 8 71 40 7 7
3 SRQS-2389 SunSeeds 8 42 22 6 7
4 XP3501217 Seminis 7 131 51 8 6
5 SVR4675898 Seminis 7 82 38 6 7
6 Thunder(1700) Seminis 7 89 44 7 7
7 HMX-8416 HarrisMoran 7 99 38 8 7
8 SRQS-2387 SunSeeds 7 71 29 7 7
9 Greensleeves(0431 HarrisMoran 7 79 34 6 7
10 Indy Seminis 6 59 28 6 9
11 Turbo Seminis 5 29 12 8 7
12 General Lee(4440) HarrisMoran 5 62 24 6 7
13 Dasher II Seminis 5 57 26 6 7
14 Revenue (4289) HarrisMoran 5 92 38 8 7
15 Daytona Seminis 4 77 30 8 8
16 Panther(3727) SunSeeds 4 54 24 7 7
17 EX4676088 Seminis 3 68 29 7 7
18 Marketmore 76 Check 2 16 9 7 7
19 Poinsett 76 CornellUniv 2 19 9 7 7
_________________________________________________________________________________
LSD (5%) 3 48 18 2 2
Mean 6 66 29 7 7
CV (%) 27 43 37 17 16
_________________________________________________________________________________
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.
wVine size & color are rated 1 (small or yellow green) to 9 (large or dark green).
Correlation (Marketable yield with gynoecious rating) = 0.04ns
Table 22. Stage 3 spring slicer trial - disease ratings (cultigens ranked
by GSB resistance).z
_________________________________________________________________________________
Cultivar Seed Anthrac Downy Powdery Virus
Rank or line source -nose mildew mildew (PRSV?)
_________________________________________________________________________________
1 SRQS-2387 SunSeeds 3.0 1 1 6
2 SRQS-2389 SunSeeds 3.3 2 1 6
3 HMX-8416 HarrisMoran 3.7 1 1 5
4 EX4676088 Seminis 3.7 3 1 1
5 Indy Seminis 4.0 2 1 6
6 Poinsett 76 CornellUniv 4.3 1 1 7
7 EX4675958 Seminis 4.3 3 2 4
8 SVR4675898 Seminis 4.7 1 1 3
9 General Lee(4440) HarrisMoran 4.7 2 1 6
10 Panther(3727) SunSeeds 4.7 2 2 5
11 Revenue (4289) HarrisMoran 4.7 3 5 5
12 XP3501217 Seminis 5.0 1 1 6
13 Dasher II Seminis 5.0 1 1 5
14 Marketmore 76 Check 5.3 1 1 6
15 Turbo Seminis 5.3 2 1 6
16 Daytona Seminis 6.0 3 1 3
17 Greensleeves(0431 HarrisMoran 6.3 2 1 6
18 SRQS-2646 SunSeeds 6.7 3 1 5
19 Thunder(1700) Seminis 8.3 2 2 4
_________________________________________________________________________________
LSD (5%) 2.9 2 1 2
Mean 4.9 2 1 5
CV (%) 36.4 76 40 23
_________________________________________________________________________________
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) = -0.15ns
Table 23. 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 XP3501217 Seminis 7.1 6.5 8.5 7.9
2 HMX-8416 HarrisMoran 7.0 6.4 6.5 6.4
3 Revenue (4289) HarrisMoran 6.5 5.9 9.1 8.6
4 Daytona Seminis 6.1 5.7 8.3 8.6
5 EX4676088 Seminis 6.1 5.6 9.0 8.6
6 SVR4675898 Seminis 6.0 5.7 9.0 9.0
7 SRQS-2387 SunSeeds 6.0 5.5 10.8 9.4
8 Greensleeves(0431 HarrisMoran 5.9 5.6 9.4 9.7
9 General Lee(4440) HarrisMoran 5.9 5.5 8.8 9.3
10 Indy Seminis 5.8 5.4 8.3 8.7
11 EX4675958 Seminis 5.5 5.2 10.7 10.5
12 Thunder(1700) Seminis 5.5 5.2 11.0 11.3
13 Dasher II Seminis 5.3 5.0 11.9 11.7
14 SRQS-2389 SunSeeds 5.3 5.0 9.9 10.2
15 Turbo Seminis 5.2 4.9 10.1 10.8
16 SRQS-2646 SunSeeds 5.2 4.8 13.1 12.4
17 Panther(3727) SunSeeds 5.2 4.9 11.8 11.4
18 Marketmore 76 Check 5.0 4.8 10.3 11.9
19 Poinsett 76 CornellUniv 4.4 4.2 13.6 13.5
_________________________________________________________________________________
LSD (5%) 1.6 1.2 3.9 4.0
Mean 5.7 5.4 10.0 10.0
CV (%) 16.6 13.9 23.4 24.4
_________________________________________________________________________________
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) = 0.76**
Correlation (Marketable yield with ARI1) = -0.43**