NC State Cucumber Trials Summary 2000

Transcription

1 $3.00 NC State Cucumber Trials Summary 2000 Todd C. Wehner Professor Tammy L. Ellington Agric. Res. Tech. III Department of Horticultural Science North Carolina State University Raleigh, NC The authors gratefully acknowledge the assistance of Jimmy Prince and the personnel at the Horticultural Crops Research Station, Clinton, NC for help in planting maintaining, and harvesting the trials, and to Marie Hall for assembling this report.

2 2 About This Report The data contained in this publication are made available to interested persons so that they will be informed as to the nature and scope of our cucumber breeding program. Since the results of the trials are based on one year's data, they should be interpreted cautiously. Genotype x environment interactions make it likely that the performance of any given cultigen (cultivar or breeding line) will be significantly different in other trials. Often, cultigens that perform well for yield, earliness, fruit quality, or disease resistance in one trial will perform significantly worse in other trials. Other factors, known only to the researchers, may complicate the interpretation of the results, making it difficult for others to interpret differences from one year to the next. For example, the effect of seed lot, pollenizer, harvest labor, irrigation, fertilizer, pollinating insects and weather patterns may cause some test plots in the field to receive better or worse treatment than average. Therefore, we urge caution in interpreting these data. Conclusions drawn by the reader will be more accurate if they are of a general nature. For example, note which cultigens performed in the top third for yield, rather than which one was at the very top. Pricing schemes Value of production figures were obtained by assigning the following prices for the marketable grades: Spring Summer Grade $/cwt $/cwt No.1 (< 1 1/16") $18.30 $18.30 No.2 (1 1/16-1 1/2") No.3 (1 1/2-2") No.4 (> 2") The pricing system is the one currently in use in North Carolina (averaged over the spring and summer crops) and is revised annually. The same pricing systems are applied to all production in a particular year even though commercial prices for summer production are usually higher than for spring production. Progression of breeding lines through trials: Stage 1 trial Stage 2 trial Stage 3 trial Stage 4 trial 2 replications --> 1 replication --> 3 replications --> 3 replications 1 harvest 6 harvests 6 harvests 6 harvests spring season summer season The cost of planning these trials, doing the field work, running the data analysis, and summarizing the results for this report was approximately $48,000 for the brinestock, pickling and slicing cucumber trials. Printing and binding charges were approximately $3.00 per report. Please direct correspondence to: Todd C. Wehner, Professor Department of Horticultural Science North Carolina State University Raleigh, NC Phone: Fax: todd_wehner@ncsu.edu Web: 10/8/02

3 Contents 3 Trial Page Pickling Cucumber Trials Brinestock Evaluation...4 Stage 1 Pickling Cucumber Trial (Preliminary)...10 Stage 2 Pickling Cucumber Trial (Observational)...10 Stage 3 Pickling Cucumber Trial (Replicated Spring)...10 Stage 4 Pickling Cucumber Trial (Replicated Summer)...10 Slicing Cucumber Trials Stage 1 Slicing Cucumber Trial (Preliminary)...21 Stage 2 Slicing Cucumber Trial (Observational)...21 Stage 3 Slicing Cucumber Trial (Replicated Spring)...21 Stage 4 Slicing Cucumber Trial (Replicated Summer)...21 Not for publication

4 4 Pickling Cucumbers Brinestock Evaluation Spring (Stage 3) Pickle Trial Todd C. Wehner and Tammy L. Ellington z Department of Horticultural Science North Carolina State University Introduction Cucumbers from the first and third harvests of the stage 3 spring pickling cucumber trial were each placed in one brine tank at Mt. Olive Pickle Co. The tanks were purged with nitrogen to remove excess carbon dioxide from the brine. Methods The cultigens (cultivars and breeding lines) were evaluated for fruit quality (shape, external color, texture, seedcell size, and lot uniformity), firmness, bloaters, and other defects in October. Quality was evaluated by judges from industry: Phil Denlinger, Sonny Coghill, Lawrence Crocker, Bob Quinn, and Tim Smith (Mt. Olive), Eddie Quill, Jeanine Suggs, and JW Jackson (Dean Foods), Curtiss Cates and Duncan Malloy (Addis Cates Co.), Richard Wojciak and Michael Cain (Sunseeds), Chris Ware and Bill Rankin (Harris Moran), and Darrel Hawley. Fruit quality was evaluated using a rating system (that approximated letter grades) from 1 to 9, where 9 = A+, 8 = A, 7 = A-, 6 = B+, 5 = B, 4 = B-, 3 = C, 2 = D, 1 = F. Bloaters and defects were measured as percentage of fruits with damage in a sample of 20 grade 3B fruits. Firmness was measured by punching 10 grade 2B fruits with a Magness-Taylor tester (having a 5/16" diameter tip). All cultigens were randomized, replicated and coded to prevent bias and provide a measure of error variance. Results The cultigens are presented in order by decreasing fruit quality in Table 1, and are ranked for resistance to bloaters and defects in Tables 2 and 3, respectively. Fruit texture and firmness rankings are in Table 4. The average quality ratings assigned by each judge in the test are presented in Table 5, showing how lenient each judge was relative to the others. Due to insufficient replication, the bloater data showed few significant differences among cultigens. Summary - The cultigens with best fruit quality in brinestock were WI6890Ax6813A, Vlasstar, WI6846Ax6848A, UW 00 78, HMX-8461, Jackson, UW 00 69, UW 00 77, SXQP 1882, Johnston, Vlaspik, and Raleigh. - The most bloater susceptible cultigens were Akord, Royal, Patton, Napoleon, SRQP-2627, and Cross Country. - As usual, brinestock firmness (from the punch test) was only partially correlated with texture (subjective rating from the judges), so the two traits are measurements of different aspects of cucumber fruit firmness. - Judges ranged from Crocker, who was the most liberal in quality ratings to Hawley, who was the most conservative. Analysis of variance indicated significant differences among judges for the way they rated fruit quality. However, interaction of judge with cultigen was non-significant (all judges gave good cultigens high ratings, and bad cultigens low ratings). z Thanks to Mt. Olive Pickle Co., Mt. Olive, N.C. for assistance in brining the cucumbers, and for providing the facilities for evaluating the cultigens tested. Thanks also to the personnel at the Horticultural Crops Research Station, Clinton, N.C. for help in running the field trials. 10/8/02

5 Table 1. Brinestock evaluation - quality ratings (cultigens are ranked by average quality). z Cultivar Seed Average Extrnal Text- Seed Uniform- Rank or line source quality Shape color ure cell ity 1 WI6890Ax6813A Wis-USDA Vlasstar(10489) Seminis WI6846Ax6848A Wis-USDA UW Univ. Wis HMX-8461 Harris Moran Jackson(3540) SunSeeds UW Univ. Wis UW Univ. Wis SXQP-1882 SunSeeds Johnston NCState Univ Vlaspik Seminis Raleigh NCState Univ UW 00 R Univ. Wis Patton (3528) SunSeeds Napoleon(3502) SunSeeds UW Univ. Wis WI6856Ax6760B Wis-USDA Lafayette SunSeeds Calypso NCState Univ Palomino(1911) Seminis HMX-3469 Harris Moran SRQP-2627 SunSeeds Royal Harris Moran Akord(Bj1802) BejoSeeds Wis.SMR 18 Univ. Wis Manteo NCState Univ Alibi BejoSeeds CrossCountry(4318 Harris Moran LSD (5%) Mean CV (%) z Quality rated 1 to 9 (9=A+, 8=A, 7=A-, 6=B+, 5=B, 4=B-, 3=C, 2=D, 1=F). Correlation (Shape with Uniformity) = 0.75** Correlation (Texture with Seedcell) = 0.92** 5 Not for publication

6 6 Table 2. Brinestock evaluation - percentage of fruit damaged by bloaters (cultigens are ranked by balloon bloater resistance). Cultivar Seed Total Honey- Rank or line source bloaters Balloon Lens comb 1 WI6890Ax6813A Wis-USDA Vlasstar(10489) Seminis WI6846Ax6848A Wis-USDA UW Univ. Wis UW Univ. Wis UW Univ. Wis Raleigh NCState Univ UW Univ. Wis Lafayette SunSeeds Calypso NCState Univ Wis.SMR 18 Univ. Wis HMX-8461 Harris Moran Manteo NCState Univ Palomino(1911) Seminis Vlaspik Seminis Johnston NCState Univ WI6856Ax6760B Wis-USDA UW 00 R Univ. Wis Alibi BejoSeeds SXQP-1882 SunSeeds Jackson(3540) SunSeeds HMX-3469 Harris Moran Akord(Bj1802) BejoSeeds Royal Harris Moran Patton (3528) SunSeeds Napoleon(3502) SunSeeds SRQP-2627 SunSeeds CrossCountry(4318 Harris Moran LSD (5%) Mean CV (%) /8/02

7 Table 3. Brinestock evaluation - percentage of fruit damaged by defects (cultigens are ranked by resistance to defects). Blossom- Cultivar Seed Total Placental end Soft Rank or line source defects hollows defects centers 1 WI6890Ax6813A Wis-USDA Akord(Bj1802) BejoSeeds Vlasstar(10489) Seminis WI6846Ax6848A Wis-USDA Wis.SMR 18 Univ. Wis HMX-8461 Harris Moran Johnston NCState Univ UW 00 R Univ. Wis UW Univ. Wis Raleigh NCState Univ Palomino(1911) Seminis UW Univ. Wis Jackson(3540) SunSeeds UW Univ. Wis WI6856Ax6760B Wis-USDA Alibi BejoSeeds Patton (3528) SunSeeds Vlaspik Seminis SXQP-1882 SunSeeds Calypso NCState Univ HMX-3469 Harris Moran Royal Harris Moran SRQP-2627 SunSeeds Lafayette SunSeeds Napoleon(3502) SunSeeds CrossCountry(4318 Harris Moran UW Univ. Wis Manteo NCState Univ LSD (5%) Mean CV (%) Not for publication

8 8 Table 4. Brinestock evaluation - firmness and texture of fruit, and resistance to bloaters and defects (cultigens are ranked by firmness). z Firm- Total Cultivar Seed ness Text- bloaters Total Bal- Rank or line source (lb.) ure & defects bloaters loon Defects 1 Wis.SMR 18 Univ. Wis UW Univ. Wis Akord(Bj1802) BejoSeeds Johnston NCState Univ WI6890Ax6813A Wis-USDA Calypso NCState Univ Vlasstar(10489) Seminis SRQP-2627 SunSeeds HMX-8461 Harris Moran UW Univ. Wis CrossCountry(4318 Harris Moran Vlaspik Seminis UW Univ. Wis UW 00 R Univ. Wis Alibi BejoSeeds WI6856Ax6760B Wis-USDA WI6846Ax6848A Wis-USDA UW Univ. Wis Royal Harris Moran Patton (3528) SunSeeds Lafayette SunSeeds Manteo NCState Univ Raleigh NCState Univ HMX-3469 Harris Moran Palomino(1911) Seminis SXQP-1882 SunSeeds Napoleon(3502) SunSeeds Jackson(3540) SunSeeds LSD (5%) Mean CV (%) z Firmness determined by punch-testing (Magness-Taylor) 10 grade 2B fruits. Correlation of Texture with: Firmness = 0.46**, Balloon = -0.50** Correlation of Texture with: Honeycomb = -0.23*, Soft centers = -0.77** 10/8/02

9 Table 5. Brinestock evaluation - quality ratings assigned by the judges (judges are ranked by leniency). z Average External Seed Uniform- Rank Judge quality Shape color Texture cell ity 1 Crocker Quinn Coghill Denlinger CCates Smith Suggs Rankin Quill Jackson Cain Malloy Wojciak Ware Hawley z Quality rated 1 to 9 (9=A+, 8=A, 7=A-, 6=B+, 5=B, 4=B-, 3=C, 2=D, 1=F). 9 Not for publication

10 10 Preliminary (Stage 1) Pickling Cucumber Trial 2000 The stage 1 pickle trial was not run this year. Observational (Stage 2) Pickling Cucumber Trial 2000 The stage 2 pickle trial was not run this year. Summer (Stage 4) Pickling Cucumber Trial 2000 The stage 4 pickle trial was not harvested this year, but disease ratings were taken (the disease ratings are in the stage 3 trial). Spring (Stage 3) Pickling Cucumber Trial 2000 Todd C. Wehner and Tammy L. Ellington Experiment Design 1. A randomized complete block with 3 replications of pickle 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 lb/a (N-P-K) broadcast preplant and 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 19 June and 6 July. Data Collection 1. Firmness was measured on 3 Grade 3 fruits using a Magness-Taylor tester with a 5/16" tip. 2. Length/Diameter ratio was calculated by measuring 5 Grade 2 fruits. 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 Vlaspik Seminis 2 UW Univ. Wis. 3 Jackson SunSeeds 4 Patton SunSeeds 5 UW Univ. Wis. 6 UW 00 R Univ. Wis. 7 UW Univ. Wis. 8 WI6856Ax6760B USDA-Wis. 10/8/02

11 Table 6. Stage 3 spring pickle trial - yield data (cultigens are ranked by fruit value). Fruit grade distribution Plants Cultivar Seed Value Weight (% by weight) per A Rank or line source ($) (cwt) Cull No.1 No.2 No.3 No.4 (x1000) 1 Vlaspik Seminis WI6856Ax6760B Wis-USDA UW Univ. Wis Jackson(3540) SunSeeds Patton (3528) SunSeeds UW Univ. Wis UW Univ. Wis UW 00 R Univ. Wis Napoleon(3502) SunSeeds Vlasstar(10489) Seminis Johnston NCState Univ Alibi BejoSeeds Royal Harris Moran HMX-3469 Harris Moran Lafayette SunSeeds UW Univ. Wis WI6846Ax6848A Wis-USDA Palomino(1911) Seminis Akord(Bj1802) BejoSeeds Calypso NCState Univ HMX-8461 Harris Moran SRQP-2627 SunSeeds Raleigh NCState Univ CrossCountry(4318 Harris Moran SXQP-1882 SunSeeds Manteo NCState Univ WI6890Ax6813A Wis-USDA Wis.SMR 18 Univ. Wis LSD (5%) Mean CV (%) Correlation (Fruit value with fruit weight) = 0.87** 11 Not for publication

12 12 Table 7. Stage 3 spring pickle trial - earliness data (cultigens are ranked by fruit value in harvests 1 and 2). Cumulative fruit value and % of total value z (6 harvests) for harvest: Cultivar Seed Rank or line source $/A % $/A % $/A % $/A % $/A % 1 Vlaspik Seminis UW Univ. Wis UW Univ. Wis UW 00 R Univ. Wis Jackson(3540) SunSeeds Patton (3528) SunSeeds UW Univ. Wis Johnston NCState Univ Lafayette SunSeeds HMX-3469 Harris Moran WI6846Ax6848A Wis-USDA HMX-8461 Harris Moran Royal Harris Moran Raleigh NCState Univ Palomino(1911) Seminis Vlasstar(10489) Seminis SRQP-2627 SunSeeds SXQP-1882 SunSeeds Calypso NCState Univ Manteo NCState Univ Napoleon(3502) SunSeeds WI6856Ax6760B Wis-USDA Akord(Bj1802) BejoSeeds Alibi BejoSeeds UW Univ. Wis CrossCountry(4318 Harris Moran Wis.SMR 18 Univ. Wis WI6890Ax6813A Wis-USDA _ LSD (5%) Mean CV (%) Correlation (Fruit value with value in harvests 1 and 2) = 0.79** 10/8/02

13 Table 8. Stage 3 spring pickle trial - fruit quality data (cultigens are ranked by average quality). Overall Cultivar Seed Average Seed- impres- Rank or line source qualityz Shapez Colory cellz sionz 1 Vlaspik Seminis UW Univ. Wis WI6890Ax6813A Wis-USDA Vlasstar(10489) Seminis UW Univ. Wis UW 00 R Univ. Wis WI6856Ax6760B Wis-USDA Jackson(3540) SunSeeds HMX-8461 Harris Moran HMX-3469 Harris Moran CrossCountry(4318 Harris Moran Patton (3528) SunSeeds UW Univ. Wis Napoleon(3502) SunSeeds Lafayette SunSeeds Palomino(1911) Seminis Akord(Bj1802) BejoSeeds SRQP-2627 SunSeeds WI6846Ax6848A Wis-USDA Johnston NCState Univ Royal Harris Moran SXQP-1882 SunSeeds Calypso NCState Univ Raleigh NCState Univ UW Univ. Wis Alibi BejoSeeds Manteo NCState Univ Wis.SMR 18 Univ. Wis LSD (5%) Mean CV (%) z Quality rated 1 to 9 (1 = poor, 5 = average, 9 = excellent). y Color rated 1 to 9 (1 = white, 5 = medium green, 9 = very dark green). Correlation (Fruit value with average quality) = 0.45** 13 Not for publication

14 14 Table 9. Stage 3 spring pickle trial - other quality data (cultigens are ranked by average quality).z Cultivar Seed Firm- L/D Defects1 Defects2 Rank or line source ness ratio UW Univ. Wis H T H K K K 2 HMX-8461 Harris Moran T T K M K N 3 Royal Harris Moran T D K K T T 4 Alibi BejoSeeds H V H W A K 5 Vlaspik Seminis K K K T K T 6 UW 00 R Univ. Wis K K D M K K 7 HMX-3469 Harris Moran H K N M K K 8 Patton (3528) SunSeeds K H K T K D 9 SRQP-2627 SunSeeds H H D T T T 10 Vlasstar(10489) Seminis T H K H K T 11 UW Univ. Wis K G T T K D 12 Akord(Bj1802) BejoSeeds W H H H K K 13 Raleigh NCState Univ K H T K K H 14 WI6890Ax6813A Wis-USDA G G G T K K 15 CrossCountry(4318 Harris Moran H T K M K K 16 Johnston NCState Univ H T K T K T 17 Calypso NCState Univ H H T M K H 18 UW Univ. Wis T H M M K T 19 Napoleon(3502) SunSeeds H K H K T K 20 Lafayette SunSeeds K T T H K K 21 WI6856Ax6760B Wis-USDA K K T T K K 22 Wis.SMR 18 Univ. Wis W W T Y T Y 23 WI6846Ax6848A Wis-USDA K T T T K K 24 Manteo NCState Univ T T N K K T 25 Jackson(3540) SunSeeds K K H K T K 26 UW Univ. Wis T K T K G D 27 Palomino(1911) Seminis T T D K K K 28 SXQP-1882 SunSeeds T N T K T K LSD (5%) Mean CV (%) z Quality rated 1 to 9 (1 = poor, 5 = average, 9 = excellent). 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 10/8/02

15 Table 10. Stage 3 spring pickle 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 Jackson(3540) SunSeeds Manteo NCState Univ WI6856Ax6760B Wis-USDA Alibi BejoSeeds SXQP-1882 SunSeeds UW Univ. Wis Royal Harris Moran Vlaspik Seminis UW 00 R Univ. Wis WI6846Ax6848A Wis-USDA Lafayette SunSeeds WI6890Ax6813A Wis-USDA Vlasstar(10489) Seminis Palomino(1911) Seminis Johnston NCState Univ Patton (3528) SunSeeds Akord(Bj1802) BejoSeeds UW Univ. Wis Napoleon(3502) SunSeeds Wis.SMR 18 Univ. Wis CrossCountry(4318 Harris Moran HMX-3469 Harris Moran UW Univ. Wis UW Univ. Wis Calypso NCState Univ SRQP-2627 SunSeeds Raleigh NCState Univ HMX-8461 Harris Moran LSD (5%) Mean CV (%) 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) = 0.45** Correlation (Weight loss with firmness) = 0.28* 15 Not for publication

16 16 Table 11. Stage 3 spring pickle trial - bloater resistance data (cultigens are ranked by bloater resistance).z Total Cultivar Seed bloater Honey- Rank or line source damage Balloon Lens comb 1 UW Univ. Wis UW 00 R Univ. Wis WI6890Ax6813A Wis-USDA Vlasstar(10489) Seminis Johnston NCState Univ Akord(Bj1802) BejoSeeds UW Univ. Wis UW Univ. Wis Palomino(1911) Seminis Vlaspik Seminis Lafayette SunSeeds Calypso NCState Univ UW Univ. Wis Raleigh NCState Univ WI6846Ax6848A Wis-USDA HMX-3469 Harris Moran CrossCountry(4318 Harris Moran WI6856Ax6760B Wis-USDA Wis.SMR 18 Univ. Wis Manteo NCState Univ Alibi BejoSeeds Royal Harris Moran Napoleon(3502) SunSeeds SXQP-1882 SunSeeds HMX-8461 Harris Moran Patton (3528) SunSeeds SRQP-2627 SunSeeds Jackson(3540) SunSeeds LSD (5%) Mean CV (%) z Data are means of 2 harvests, 5 fruits/cultigen. Fruits tested in 5 gal. pails purged with 100% CO2. 10/8/02

17 Table 12. Stage 3 spring pickle trial - bloater resistance data (cultigens are ranked by total bloater + defect resistance).z Bloaters Total Blossom Placen Cultivar Seed + bloater Total -end -tal Soft Rank or line source defects damage defects defects hollow center 1 UW Univ. Wis WI6890Ax6813A Wis-USDA Vlasstar(10489) Seminis UW Univ. Wis UW Univ. Wis Akord(Bj1802) BejoSeeds Lafayette SunSeeds UW 00 R Univ. Wis Palomino(1911) Seminis Calypso NCState Univ Vlaspik Seminis Johnston NCState Univ UW Univ. Wis Raleigh NCState Univ HMX-3469 Harris Moran CrossCountry(4318 Harris Moran WI6846Ax6848A Wis-USDA Alibi BejoSeeds WI6856Ax6760B Wis-USDA Royal Harris Moran Wis.SMR 18 Univ. Wis Manteo NCState Univ Napoleon(3502) SunSeeds SXQP-1882 SunSeeds HMX-8461 Harris Moran Patton (3528) SunSeeds SRQP-2627 SunSeeds Jackson(3540) SunSeeds LSD (5%) Mean CV (%) z Data are means of 2 harvests, 5 fruits/cultigen. Fruits tested in 5 gal. pails purged with 100% CO2. 17 Not for publication

18 18 Table 13. Stage 3 spring pickle trial - sex expression and vine data (cultigens are ranked by gynoecious rating). Cultivar Seed Gyn. Vine Vine Rank or line source ratingz sizey colorx 1 Akord(Bj1802) BejoSeeds WI6846Ax6848A Wis-USDA UW Univ. Wis SXQP-1882 SunSeeds Raleigh NCState Univ HMX-3469 Harris Moran UW 00 R Univ. Wis SRQP-2627 SunSeeds UW Univ. Wis Patton (3528) SunSeeds Lafayette SunSeeds Palomino(1911) Seminis Royal Harris Moran UW Univ. Wis HMX-8461 Harris Moran UW Univ. Wis Jackson(3540) SunSeeds Vlaspik Seminis Vlasstar(10489) Seminis Calypso NCState Univ Johnston NCState Univ Napoleon(3502) SunSeeds Alibi BejoSeeds CrossCountry(4318 Harris Moran Manteo NCState Univ Wis.SMR 18 Univ. Wis WI6856Ax6760B Wis-USDA WI6890Ax6813A Wis-USDA LSD (5%) Mean CV (%) z Gynoecious rating (1 = androecious, 2-3 = andromonoecious, 4-6 = monoecious, 7-8 = predominately gynoecious, 9 = gynoecious). y Size rated 1 to 9 (1=very small, 9=very large). x Color rated 1 to 9 (1=yellow, 9=very dark green). Correlation (Yield with gynoecious rating) = 0.04ns Correlation (Yield with vine size) = 0.09ns 10/8/02

19 Table 14. Stage 3 spring pickle trial - disease data (cultigens are ranked by average disease).z Cultivar Seed Anthrac Virus Powdery Rank or line source -nose (PRSV?) mildew 1 Patton (3528) SunSeeds Raleigh NCState Univ UW Univ. Wis Royal Harris Moran Alibi BejoSeeds UW Univ. Wis WI6890Ax6813A Wis-USDA Lafayette SunSeeds UW Univ. Wis CrossCountry(4318 Harris Moran Jackson(3540) SunSeeds UW Univ. Wis SXQP-1882 SunSeeds HMX-3469 Harris Moran Akord(Bj1802) BejoSeeds Vlasstar(10489) Seminis Palomino(1911) Seminis WI6846Ax6848A Wis-USDA Calypso NCState Univ UW 00 R Univ. Wis HMX-8461 Harris Moran Vlaspik Seminis Manteo NCState Univ SRQP-2627 SunSeeds Johnston NCState Univ WI6856Ax6760B Wis-USDA Napoleon(3502) SunSeeds Wis.SMR 18 Univ. Wis LSD (5%) Mean CV (%) z Disease rated 0 to 9 (0=none, 1-2=trace, 3-4=slight, 5-6=moderate, 7-8=advanced, 9=plant dead). Correlation (Yield vs. disease rating) = -0.05ns 19 Not for publication

20 20 Table 15. Stage 3 spring pickle trial - selection indexes (cultigens ranked by SWI1).z Cultivar Seed Simple weighted Average rank Rank or line source SWI1 SWI2 ARI1 ARI2 1 Vlaspik Seminis UW Univ. Wis Jackson(3540) SunSeeds Patton (3528) SunSeeds UW Univ. Wis UW 00 R Univ. Wis UW Univ. Wis WI6856Ax6760B Wis-USDA Lafayette SunSeeds Vlasstar(10489) Seminis Royal Harris Moran HMX-3469 Harris Moran Johnston NCState Univ UW Univ. Wis Palomino(1911) Seminis WI6846Ax6848A Wis-USDA Napoleon(3502) SunSeeds Raleigh NCState Univ Alibi BejoSeeds HMX-8461 Harris Moran Akord(Bj1802) BejoSeeds Calypso NCState Univ SRQP-2627 SunSeeds SXQP-1882 SunSeeds CrossCountry(4318 Harris Moran Manteo NCState Univ WI6890Ax6813A Wis-USDA Wis.SMR 18 Univ. Wis LSD (5%) Mean CV (%) 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 (Yield with SWI1) = 0.93** Correlation (Yield with ARI1) = -0.68** 10/8/02

21 Slicing Cucumbers 21 Preliminary (Stage 1) Slicing Cucumber Trial 2000 The stage 1 slicer trial was not run this year. Observational (Stage 2) Slicing Cucumber Trial 2000 The stage 2 slicer trial was not run this year. Summer (Stage 4) Slicing Cucumber Trial 2000 The stage 4 slicer trial was not harvested this year (the disease ratings are in the stage 3 trial). 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 lb/a (N-P-K) broadcast preplant and 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 XP Seminis 2 HMX-8416 Harris Moran 3 Revenue Harris Moran 4 Daytona Seminis 5 EX Seminis 6 SVR Seminis 7 SRQS-2387 SunSeeds Not for publication

22 22 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 XP Seminis Revenue (4289) HarrisMoran Daytona Seminis Greensleeves(0431 HarrisMoran General Lee(4440) HarrisMoran EX Seminis Marketmore 76 Check Turbo Seminis SRQS-2387 SunSeeds SVR Seminis Indy Seminis Thunder(1700) Seminis Panther(3727) SunSeeds SRQS-2646 SunSeeds Dasher II Seminis SRQS-2389 SunSeeds EX Seminis Poinsett 76 CornellUniv LSD (5%) Mean CV (%) Correlation (Marketable yield with % culls) = -0.27* 10/8/02

23 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 Rank or line source wt. % wt. % wt. % wt. % wt. % 1 XP Seminis HMX-8416 HarrisMoran Revenue (4289) HarrisMoran Thunder(1700) Seminis SVR Seminis Greensleeves(0431 HarrisMoran Daytona Seminis EX Seminis SRQS-2387 SunSeeds EX Seminis SRQS-2646 SunSeeds General Lee(4440) HarrisMoran Indy Seminis Dasher II Seminis Panther(3727) SunSeeds SRQS-2389 SunSeeds Turbo Seminis Poinsett 76 CornellUniv Marketmore 76 Check LSD (5%) Mean CV (%) Correlation (Marketable yield with yield in harvests 1-2) = 0.54** Correlation (Marketable yield with % of yield in harvests 1-2) = 0.16ns 23 Not for publication

24 24 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 Daytona Seminis Marketmore 76 Check General Lee(4440) HarrisMoran Indy Seminis Turbo Seminis Greensleeves(0431 HarrisMoran SVR Seminis SRQS-2389 SunSeeds Thunder(1700) Seminis XP Seminis Revenue (4289) HarrisMoran EX Seminis EX Seminis Poinsett 76 CornellUniv Dasher II Seminis Panther(3727) SunSeeds SRQS-2646 SunSeeds SRQS-2387 SunSeeds LSD (5%) Mean CV (%) 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 10/8/02

25 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.) HMX-8416 HarrisMoran T T D K K T 2 Daytona Seminis H K T T K K 3 Marketmore 76 Check T H T K K K 4 General Lee(4440) HarrisMoran H S H K K D 5 Indy Seminis H K M T D K 6 Turbo Seminis M K M T K T 7 Greensleeves(0431 HarrisMoran H T T K K M 8 SVR Seminis H H M K T H 9 SRQS-2389 SunSeeds K D K D H D 10 Thunder(1700) Seminis K D S T S K 11 XP Seminis K S K T H T 12 Revenue (4289) HarrisMoran T D I K T K 13 EX Seminis T K T D H C 14 EX Seminis T D T N T C 15 Poinsett 76 CornellUniv H H H T T T 16 Dasher II Seminis H H H T K M 17 Panther(3727) SunSeeds H T 7 K K H 18 SRQS-2646 SunSeeds H S H T D T 19 SRQS-2387 SunSeeds H S H C H N LSD (5%) Mean CV (%) 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 25 Not for publication

26 26 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 Daytona Seminis Marketmore 76 Check General Lee(4440) HarrisMoran Indy Seminis Turbo Seminis Greensleeves(0431 HarrisMoran SVR Seminis SRQS-2389 SunSeeds Thunder(1700) Seminis XP Seminis Revenue (4289) HarrisMoran EX Seminis EX Seminis Poinsett 76 CornellUniv Dasher II Seminis Panther(3727) SunSeeds SRQS-2646 SunSeeds SRQS-2387 SunSeeds LSD (5%) Mean CV (%) 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** 10/8/02

27 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 EX Seminis SRQS-2389 SunSeeds XP Seminis SVR Seminis Thunder(1700) Seminis HMX-8416 HarrisMoran SRQS-2387 SunSeeds Greensleeves(0431 HarrisMoran Indy Seminis Turbo Seminis General Lee(4440) HarrisMoran Dasher II Seminis Revenue (4289) HarrisMoran Daytona Seminis Panther(3727) SunSeeds EX Seminis Marketmore 76 Check Poinsett 76 CornellUniv LSD (5%) Mean CV (%) 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 27 Not for publication

28 28 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 SRQS-2389 SunSeeds HMX-8416 HarrisMoran EX Seminis Indy Seminis Poinsett 76 CornellUniv EX Seminis SVR Seminis General Lee(4440) HarrisMoran Panther(3727) SunSeeds Revenue (4289) HarrisMoran XP Seminis Dasher II Seminis Marketmore 76 Check Turbo Seminis Daytona Seminis Greensleeves(0431 HarrisMoran SRQS-2646 SunSeeds Thunder(1700) Seminis LSD (5%) Mean CV (%) 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 10/8/02

29 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 XP Seminis HMX-8416 HarrisMoran Revenue (4289) HarrisMoran Daytona Seminis EX Seminis SVR Seminis SRQS-2387 SunSeeds Greensleeves(0431 HarrisMoran General Lee(4440) HarrisMoran Indy Seminis EX Seminis Thunder(1700) Seminis Dasher II Seminis SRQS-2389 SunSeeds Turbo Seminis SRQS-2646 SunSeeds Panther(3727) SunSeeds Marketmore 76 Check Poinsett 76 CornellUniv LSD (5%) Mean CV (%) 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** 29 Not for publication