2013 ohio potato germplasm evaluation report · brayton orchard, olivia ray, and sonia walker is...

Horticulture and Crop Science Series No. 810 December 2013

2013 OHIO POTATO GERMPLASM EVALUATION

REPORT

Matthew D. Kleinhenz, Jennifer B. Moyseenko, Sonia D. Walker and Bruce Williams

Department of Horticulture and Crop Science

The Ohio State University

IN COOPERATION WITH NORTHEAST (NE-1231) REGIONAL PROJECT

ACKNOWLEDGMENTS

This project was funded by a grant from the USDA National Institute of Food and Agriculture (NIFA) and by the OARDC, OSU Extension and the Department of Horticulture and Crop Science.

Special thanks to Bayer Corporation, Cerexagri, Inc., Dow AgroSciences LLC, Gowan,

Gustafson, Shearer’s Foods, Inc., and Syngenta Crop Protection, Inc. for support. The technical assistance of Bruce Williams, Terry Miller, Josh Heller, Brittany

Aukerman, Alyssa Funkhouser, Derek Hoffman, Zack Irons, Julie Lawson, Elias Mgembe, Brayton Orchard, Olivia Ray, and Sonia Walker is gratefully acknowledged.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All programs of the Ohio Agricultural Research and Development Center are available to clientele without regard to race, color, creed, religion, sexual orientation, national origin, gender, age, disability or Vietnam-era status.

TABLE of CONTENTS Section Page Ohio Potato Germplasm Evaluation

Summary….………………………………………………......................................... . 1 Procedures

Planting, Stand Establishment, and Cultural Practices ..................................... 1 Crop Yield and Quality ……………………………………………………… 1 Chipping Quality Evaluation ............................................................................ 2 Results ............................................................................................................... 2

Table 1. List of participating breeding programs ........................... 4 Table 2. List of entries evaluated ........................... 5 Table 3. Marketable yield for standard varieties 2003-2013 ........................... 6 Table 4. Cultural, nutrient, and pest management practices in 2013 ..................... 6 Table 5. Seasonal and historical climatic data for the study site ................................. 7

Results Table 6. Percent stand, yield, and chip quality for NE-1231 ……………………... . 8 Table 7. Tuber characteristics for NE-1231 ................................................................ 9 Table 8. Percent stand, yield and chip quality for Observation Studies ..................... 10 Table 9. Tuber characteristics for Observation Studies .............................................. 13

Reference Conversion Table for Specific Gravity ......................................................................... 16 Tuber Rating System..................................................................................................... 17 Internal and External Tuber Pictures (OBT and OBD)………………………………. 18

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OHIO POTATO GERMPLASM EVALUATIONS - 2013 Summary

Ohio cooperates with private and public breeders in the U.S. and elsewhere in evaluating varieties and experimental lines of fresh and processing potatoes. A total of sixty-six distinct varieties and experimental lines developed in three breeding programs were evaluated in 2013 (Table 1). Entries were placed into one of four experiments completed at the Ohio Agricultural Research and Development Center (OARDC) in Wooster, OH; Northeast Regional Project 1231 (NE-1231), Triple Observation (OBT), Double Observation (OBD) and Single Observation (OBS). Named varieties were included in one study, and numbered entries in one study. Entries were contributed by breeding programs in Maine (ME), New York (NY), and USDA (in Beltsville, MD). Entries are listed in Table 2 and include a total of fifty-two varieties contributed by ME, two by NY, three by the USDA, and nine varieties included as standards. The studies were established to evaluate the growth and market traits of each entry when grown under non-irrigated conditions in Ohio. The fact that the trials at the OARDC are not irrigated tends to affect the performance of individual entries. Marketable yield of six varieties and seasonal rainfall for 2003-2013 at the OARDC are shown in Table 3. Procedures

Planting, Stand Establishment and Cultural Practices Seed potatoes were cut on April 29, May 1, and May 2, 2013 and allowed to cure under

recommended temperature and humidity conditions. Plots were established on May 8, 2013. All entries in the NE-1231 experiment were replicated three times. Entries in the Observation studies were replicated once, twice or three times depending on the study. Percent stand was recorded 5 weeks after planting.

Tables 3, 4 and 5 contain plot management, climatic and historical yield data for the study site, located on a well-drained Wooster silt loam. Pest, weed and disease pressure were minimized using procedures and materials consistent with local commercial practice, including weekly pesticide applications. Plants were vine-killed on September 17, 2013.

Crop Yield and Quality Whole plots in the NE-1231 and Observation trials were harvested on October 1, 2013. Tubers

were placed in a barn under ambient conditions and covered with a single layer of Agribon + AG-50 Row Cover (1.5 oz/yd ²) to prevent freezing. Tubers were transferred to humidified refrigerated (48-50°

F) storage after grading on October 22, 2013. On October 22, 2013, tubers were removed for grading. At grading, the total weight of tubers

produced by each genotype (across multiple plots, if present) was recorded. The entire harvested weight from all plots of each genotype was retained and graded. The weight of tubers in the A-size (US #1), B-size, and cull categories was recorded. These weights were also expressed as percentages of the weight of the graded potatoes, and percentages were then applied to the total weight of the potatoes harvested for each genotype in order to calculate its marketable yield (cwt/A).

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After grading, tubers were retained for internal and external quality ratings and chipping quality evaluations. Tubers set aside for internal and external quality ratings were placed in refrigerated (42-44° F) storage. Tubers set aside for chipping were retained in humidified refrigerated (48-50° F) storage.

Tubers were rated for internal and external quality on November 4, 5, and 13, 2013. Ten randomly selected, A-size, marketable tubers collected at grading were scored for tuber shape, color, surface texture, eye depth, general appearance, and the presence or absence of hollow heart, brown center, internal necrosis, and vascular discoloration using accepted protocols. (See Tuber Data Rating System on p.17). Digital images representing internal and external quality of each genotype were recorded.

In addition, three healthy tubers per genotype were evaluated for glucose content on November 8, 2013 (3 days after chipping). Tubers were cut in half lengthwise and glucose content rated using Potato Test Strips (Precision Labs, Inc., 9889 Crescent Park Drive, West Chester, OH 45069). Ratings of three tubers were averaged. Glucose evaluations were repeated for all except red skinned genotypes on December 12, 2013, after 5 weeks in humidified refrigerated (42-44°F) storage.

Chipping Quality Evaluation

Tubers were held in refrigerated humidified storage (48-50o F) until November 4, 2013. They were removed and held under ambient conditions (approx. 65oF) until being processed on November 5, 2013. Chipping quality evaluation began with measurements of specific gravity. Eight pounds of potatoes were placed in a hydrometer and specific gravity was recorded. A subset of three potatoes was selected and peeled using a Rotato Express electric potato peeler. These potatoes were sliced to an approximate thickness of 0.051 inches using a DeBuyer Kobra mandolin slicer. Slices were rinsed in cold water and then fried in a Commercial Pro Model CPF32 electric fryer containing cottonseed oil donated by Shearer’s Foods, Inc. at 171-173°C (340-345°F) for approximately 2 minutes and 15 seconds. After frying, a representative sample was visually evaluated for color using color standards in the Potato Chip Color Reference Chart published by the Snack Food Association. Chips that are very light in color are scored “1” and very dark chips are scored “6”. The percentage of chips with blister(s) greater than 1 cm (0.39 in) in diameter was recorded. Digital images of chips for each genotype were recorded.

Results Yield, tuber characteristics, and chipping quality data are presented in Tables 8-9. Total yield and US #1 yield averaged 221 and 167 (cwt/A) across all studies respectively, with a range of 35-481 (total) and 27-365 (US #1). Average total yield in the NE-1231 study was 363 cwt/A among varieties and 418 cwt/A among the selections, with a study range of 242 -481 cwt/A. Of the 66 entries evaluated, overall tuber appearance was rated poor-fair (scale rating of 1-3), fair-good (scale rating of 4-6), and good-excellent (scale rating of 7-9) in 0, 23, and 43 entries, respectively.

1. Entries having an overall appearance rating of ≥ 7 (good-excellent) at grading.

• NE-1231: AF 0338-17, AF 4013-3, AF 4138-8, AF 4157-6, Atlantic, B 2833-16, BNC

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182-5, Chieftain, Katahdin, Kennebec, NY 148, NY 150, Rochdale Gold-Doree, Yukon Gold.

• Triple Observation: AF 4227-2, AF 4221-4, AF 4614-2, AF 4640-1. • Double Observation: AF 5033-11, AF 5144-7, AF5215-2, AF 5274-6, AF 5275-1,

AF 5301-2, AF 5358-1. • Single Observation: AF 4702-2, AF 4736-10, AF 5033-1, AF 5039-17, AF 5040-1,

AF 5040-4, AF 5040-8, AF 5042-8, AF 5044-19, AF 5044-21, AF 5068-3, AF 5153-11, AF 5154-2, AF 5225-1, AF 5281-4, AF 5286-2, AF 5295-1, AF 5320-3, AF 5356-3.

2. Entries having an external tuber rating of ≥ 7 (good-excellent) at grading and marketable yield ≥ the study average.

a. NE-1231: AF 0333-17, AF 4138-8, AF 4157-6, Atlantic, BNC 182-5, NY 148, NY 150 b. Triple Observation: AF 4227-2, AF 4421-4, AF 4640-1 c. Double Observation: AF 5033-11, AF 5144-7, AF 5215-2, AF 5301-2 d. Single Observation: AF 4702-2, AF 5039-17, AF 5040-1, AF 5042-8, AF 5044-19, AF

5044-21, AF 5068-3, AF 5153-11, AF 5142-2, AF 5225-1, AF 5286-2, AF 5320-3.

3. All entries had a chip score of ≤ 3 except the following: a. NE-1231: Dark Red Norland, Superior b. Double Observation: AF 5358-1 c. Single Observation: AF 5068-3, AF 5189-2

Table 1. List of programs participating in the 2013 Ohio Potato Germplasm Evaluations.

------------------------ 2013 experiment ------------------------

Genotype Triple Double Single1 TotalNumber Program Codes NE-1231 Observation Observation Observation

1 Univ. Maine AF 4 7 9 32 522 Cornell Univ. NY 1 1

NYE 1 13 USDA B 1 1

BNC 2 24 Various named 9 9

Total 18 7 9 32 66

1 Refers to number of single row replicates. All other experiments contained two (Double Observation) or three (NE-1231, Triple Observation) replicates.

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Table 2. List of varieties and experimental lines planted in the potato germplasm evaluations at theOhio Agricultural Research and Developmental Center (OARDC) in Wooster, OH in 2013.

NE-1231 Triple Observation Double Observation Single Observation

1. Atlantic 19. AF 4227-2 26. AF 4565-1 35. AF 4702-22. Chieftain 20. AF 4421-4 27. AF 5033-11 36. AF 4736-103. Dark Red Norland 21. AF 4463-8 28. AF 5144-7 37. AF 5033-14. Katahdin 22. AF 4552-5 29. AF 5152-2 38. AF 5037-25. Kennebec 23. AF 4573-2 30. AF 5215-2 39. AF 5039-176. Rochdale Gold-Doree 24. AF 4614-2 31. AF 5274-6 40. AF 5040-17. Snowden 25. AF 4640-1 32. AF 5275-1 41. AF 5040-48. Superior 33. AF 5301-2 42. AF 5040-89. Yukon Gold 34. AF 5358-1 43. AF 5042-810. AF 0338-17 44. AF 5044-1911. AF 4013-3 45. AF 5044-2112. AF 4138-8 46. AF 5068-313. AF 4157-6 47. AF 5084-114. B 2833-16 48. AF 5138-215. BNC 182-5 49. AF 5152-316. BNC 244-10 50. AF 5153-1117. NY 148 (NYE 106-4) 51. AF 5154-218. NY 150 (NYF 52-1) 52. AF 5160-7

53. AF 5161-954. AF 5189-255. AF 5225-156. AF 5243-257. AF 5245-158. AF 5281-459. AF 5286-260. AF 5295-161. AF 5306-462. AF 5320-363. AF 5332-264. AF 5345-365. AF 5345-966. AF 5356-3

------------------------------------------------ Experiment -------------------------------------------------------------

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Table 3. Yield (cwt/A) of marketable, A-size tubers of six varieties grown at the OARDC in Wooster, OH2003-2013.

---------------------------------Year and Mkt. Yield (cwt/A) ---------------------------------- rowVariety 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 average

Atlantic 240 * 211 327 225.4 277 276 197 153 57 391 235Dk. Red Norland 192 235 241 234 192 270 240 201 133 61 184 198Katahdin 223 204 211 241 231.8 256 280 79 70 25 304 193Kennebec 225 151 164 199 225.7 203 290 101 59 43 108 161Superior 218 146 140 149 140.5 226 224 104 110 45 174 152Yukon Gold 135 164 155 222 222.5 255 267 113 91 60 359 186

Rainfall (inches, 6.20 2.83 10.91 8.50 7.10 7.74 10.57 5.70 8.77 4.56 8.55 7.40July-Aug)

Table 4. Cultural, nutrient, and pest management practices for the potato germplasm evaluationscompleted at the OARDC in Wooster, OH in 2013.

Date plantedDate vine-killed 17-SepDate harvested2012 main crop Soybean

Fertilizer 10-20-20 (400 lb/A), separated dairy solids (A113 lb N/A)

Herbicide Dual-Magnum (2 pt/A), Sencor (1 lb/A)

Insecticide Admire (4 oz/A)

Spacing (ft.) within, between row 1 x 3Plot width, length (ft.) 3 x 30Soil conditions at planting MoistIrrigation (inches) None

Sprays applied 5-Jun Baythroid (2.8 oz/A), Bravo (2 pt/A)15-Jun Tanos (8 oz/A), Kocide (2 lb/A), Manzate (1.5 lb/A),

Baythroid (2.8 oz/A)20-Jun Baythroid (2.8 oz/A), Bravo (2 pt/A)12-Jul Tanos (8 oz/A), Kocide (2 lb/A), Manzate (1.5 lb/A),

Asana (10 oz/A)17-Jul Bravo (1.5 pt/A), Altacor (3 oz/A)25-Jul Quadris (5 oz/A), Altacor (3 oz/A)2-Aug Tanos (8 oz/A), Kocide (2 lb/A), Manzate PS (2 lb/A),

Baythroid (2.8 oz/A)8-Aug Bravo (2 pt/A), Imidan (4 lb/A)

15-Aug Bravo (2 pt/A)23-Aug Ridomil Bravo Gold SC (2.5 pt/A)30-Aug Quadris (6 oz/A)

17-Sep Gramoxone (1 pt/A)

8-May

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1-Oct

Table 5. Seasonal and historical climatic data for the potato germplasm evaluations completed at the OARDC inWooster, OH in 2013.

May June July August September

Avg. High Temp. (2013) (F) 74.0 78.5 81.5 80.2 74.4Avg. Low Temp. (2013) (F) 50.1 58.3 63.1 58.4 51.9Avg. Temp. (2013) (F) 62.3 68.1 71.7 69.3 63.1Normal Avg. Temp. (Historical) (F) 58.5 67.7 71.5 69.9 63.4

Total Precip. (2013) (in.) 2.0 5.1 6.6 2.0 2.9Normal Avg. Precip. (Historical) (in.) 3.9 3.9 4.1 3.6 3.1Precip. deficit/surplus (2013) (in.)

period -1.9 1.2 2.5 -1.7 -0.2cumulative -1.9 -0.7 1.8 0.2 0.0

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Table 6. Percent stand, yield and chip quality for entries grown in the Ohio NE-1231 Regional Project experiment in 2013.

Entry Entry Stand Total US # 1 US # 1 B-Size Cull Specific Specific Chip Blister4 % Glucose % Glucose# Name % cwt/A cwt/A % % % Gravity1 Gravity2 Color3

% at chipping⁵ after chipping⁶

1 Atlantic 96 456 391 86 4 11 1.088 1.087 1 10 0.3 0.02 Chieftain 94 479 386 80 9 11 1.066 1.065 2 10 0.7 1.73 Dark Red Norland 91 247 184 74 7 19 < 1.060 1.059 4 10 0.3 1.74 Katahdin 96 374 304 81 6 13 1.072 1.071 1 10 0.0 1.05 Kennebec 90 242 108 45 11 45 1.072 1.071 1 15 0.0 2.06 Rochdale Gold-Doree 90 315 237 75 6 19 1.071 1.070 2 15 0.3 1.07 Snowden 96 450 360 80 5 15 1.086 1.085 1 15 0.0 2.08 Superior 98 252 174 69 9 22 < 1.060 1.059 4 10 1.3 2.39 Yukon Gold 94 453 359 79 3 18 1.071 1.070 3 20 0.3 1.0

10 AF 0338-17 98 450 364 81 5 14 1.084 1.083 1 15 1.0 0.311 AF 4013-3 96 386 292 76 12 12 1.075 1.074 2 10 0.0 0.312 AF 4138-8 99 481 365 76 10 14 1.062 1.061 2 5 0.3 1.013 AF 4157-6 91 443 351 79 8 12 1.079 1.078 1 0 1.0 2.014 B 2833-16 96 391 270 69 6 25 1.081 1.080 3 5 0.3 2.015 BNC 182-5 97 442 359 81 6 13 1.086 1.085 1 0 0.7 2.016 BNC 244-10 96 347 251 72 20 8 1.086 1.085 3 0 0.3 3.017 NY 148 (NYE 106-4) 94 377 308 82 7 12 1.087 1.086 1 15 0.0 0.718 NY 150 (NYF 52-1) 92 440 233 53 37 10 1.081 1.080 2 10 0.3 1.0

Average 95 390 294 74 9 16 1.078 1.075 2 10 0.4 1.4

1 Specific gravity recorded at chipping. 2 Specific gravity with correction factor based on SFA chart. See reference table on page 16 for starch and dry matter conversions.3 SFA Standard (1=light, 6 =dark).4 Percentage of chips that developed blisters greater than 1 cm in diameter during the frying process.⁵ Approximate % glucose at time of chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.⁶ Approximate % glucose 5 weeks after chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.

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Table 7. Tuber Characteristics for entries grown in the Ohio NE-1231 Regional Project experiment in 2013.

-------------------- External1 -------------------- ------------------------- Internal 2 -----------------------Entry Entry Skin Skin Tuber Eye Overall Hollow Brown Vsclr % Defected

# Name Color Texture Shape Depth Appear. Heart Center Necrosis Dsclrtn Tubers

1 Atlantic 7 6 2 7 7 0 1 0 2 302 Chieftain 2 1 4 7 7 0 0 0 0 03 Dark Red Norland 2 6 2 4 6 0 0 0 3 304 Katahdin 7 7 3 6 7 1 0 0 2 205 Kennebec 7 8 4 7 7 2 0 0 0 206 Rochdale Gold-Doree 7 6 2 8 7 0 0 1 3 307 Snowden 5 3 2 5 6 0 0 0 2 208 Superior 6 6 3 4 6 0 0 0 4 409 Yukon Gold 7 8 2 6 8 3 0 0 1 4010 AF 0338-17 7 4 2 7 7 0 0 0 1 1011 AF 4013-3 9 7 3 8 8 0 0 2 3 5012 AF 4138-8 6 7 2 5 7 0 0 1 1 2013 AF 4157-6 9 6 2 7 7 0 0 0 2 2014 B 2833-16 6 5 3 7 6 0 0 1 3 4015 BNC 182-5 6 6 2 7 7 1 0 0 4 4016 BNC 244-10 1 7 2 8 6 0 0 0 0 017 NY 148 (NYE 106-4) 7 6 2 7 7 0 0 0 0 018 NY 150 (NYF 52-1) 8 8 4 7 8 0 0 0 0 0

1 See reference table for rating system on page 17.2 Number of tubers out of 10 that contain the defect.

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Table 8. Percent stand, yield and chip quality for entries grown in the Ohio Triple Observation Trial in 2013.

Entry Entry Stand Total US # 1 US # 1 B-Size Cull Specific Specific Chip Blister4 Glucose GlucoseStudy # Name % cwt/A cwt/A % % % Gravity1 Gravity2 Color3


OBT 19 AF 4227-2 97 426 336 79 10 11 1.072 1.071 1 5 0.0 1.0OBT 20 AF 4421-4 96 442 360 81 8 11 1.073 1.072 3 5 0.0 0.7OBT 21 AF 4463-8 77 434 365 84 7 8 1.063 1.062 1 15 2.3 1.0OBT 22 AF 4552-5 94 417 322 77 7 15 1.072 1.071 2 0 0.7 1.3OBT 23 AF 4573-2 92 384 294 76 15 8 1.084 1.083 1 5 0.0 0.3OBT 24 AF 4614-2 97 338 261 77 11 12 1.078 1.077 1 5 0.0 0.3OBT 25 AF 4640-1 89 431 342 79 12 8 1.080 1.079 1 5 0.3 0.7

Average 92 410 326 79 10 11 1.075 1.073 1 6 0.5 0.8

1 Specific gravity recorded at chipping. 2 Specific gravity with correction factor based on SFA chart. See reference table on page 16 for starch and dry matter conversions.3 SFA Standard (1=light, 6 =dark).4 Percentage of chips that developed blisters greater than 1 cm in diameter during the frying process.

⁵ Approximate % glucose at time of chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.⁶ Approximate % glucose 5 weeks after chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.

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Table 8 (cont.). Percent stand, yield and chip quality for entries grown in the Ohio Double Observation Trial in 2013.



OBD 26 AF 4565-1 92 150 87 58 24 18 < 1.060 1.059 2 5 0.0OBD 27 AF 5033-11 93 176 151 85 9 5 1.067 1.066 1 10 0.3 0.7OBD 28 AF 5144-7 80 194 160 83 6 12 1.077 1.076 2 10 0.0 0.7OBD 29 AF 5152-2 90 246 206 84 7 9 1.081 1.080 1 10 0.3 0.7OBD 30 AF 5215-2 93 248 174 70 19 11 1.071 1.070 2 5 0.3 1.3OBD 31 AF 5274-6 97 147 84 57 31 12 < 1.060 1.059 1 10 0.3OBD 32 AF 5275-1 87 125 75 60 33 7 1.064 1.063 3 20 1.3OBD 33 AF 5301-2 97 199 160 80 11 8 1.073 1.072 1 15 1.7 2.7OBD 34 AF 5358-1 95 190 139 73 13 14 1.064 1.063 4 5 1.0 3.0

Average 91 186 137 72 17 11 1.071 1.067 2 10 0.6 1.5


⁵ Approximate % glucose at time of chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.⁶ Approximate % glucose 5 weeks after chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.

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Table 8 (cont.). Percent stand, yield and chip quality for entries grown in the Ohio Single Observation Trial in 2013.



OBS 35 AF 4702-2 90 138 104 75 8 17 1.073 1.072 1 5 0.3 1.7OBS 36 AF 4736-10 97 67 54 81 2 17 1.078 1.077 1 15 0.0 0.0OBS 37 AF 5033-1 90 71 64 89 4 7 1.070 1.069 1 5 0.0 2.0OBS 38 AF 5037-2 57 35 27 77 4 19 1.068 1.067 2 10 0.3 1.3OBS 39 AF 5039-17 93 136 109 80 5 15 1.074 1.073 1 5 0.0 1.7OBS 40 AF 5040-1 70 93 68 74 2 25 1.075 1.074 1 10 0.0 0.7OBS 41 AF 5040-4 100 70 63 90 2 8 1.075 1.074 2 5 0.0 0.0OBS 42 AF 5040-8 93 63 43 69 13 18 1.086 1.085 1 10 0.3 1.3OBS 43 AF 5042-8 97 103 83 80 6 14 1.072 1.071 1 10 1.0 3.0OBS 44 AF 5044-19 87 86 73 85 5 9 1.075 1.074 1 5 0.0 1.3OBS 45 AF 5044-21 87 144 106 74 17 9 1.074 1.073 1 5 0.0 0.0OBS 46 AF 5068-3 97 97 58 60 24 16 1.070 1.069 4 15 0.0 0.7OBS 47 AF 5084-1 90 65 45 69 7 24 1.076 1.075 1 0 0.7 0.3OBS 48 AF 5138-2 90 87 62 71 6 23 1.068 1.067 1 5 0.7 1.7OBS 49 AF 5152-3 93 108 80 74 4 22 1.078 1.077 1 5 0.3 0.7OBS 50 AF 5153-11 83 123 95 77 7 17 1.081 1.080 2 5 0.0 0.3OBS 51 AF 5154-2 90 79 55 70 18 11 1.061 1.060 2 10 0.7OBS 52 AF 5160-7 70 60 33 55 17 28 1.063 1.062 2 0 0.3OBS 53 AF 5161-9 100 93 59 63 4 32 1.086 1.085 1 5 2.0 2.0OBS 54 AF 5189-2 100 102 62 61 19 21 1.064 1.063 5 5 0.0 0.3OBS 55 AF 5225-1 93 163 134 82 6 12 1.076 1.075 2 10 0.7 0.0OBS 56 AF 5243-2 97 106 75 70 15 15 1.064 1.063 2 25 0.7OBS 57 AF 5245-1 97 93 66 71 5 24 1.067 1.066 3 15 0.0 1.3OBS 58 AF 5281-4 90 69 49 71 10 19 1.078 1.077 1 0 0.3 1.0OBS 59 AF 5286-2 100 170 122 72 10 18 1.086 1.085 1 5 0.3 1.0OBS 60 AF 5295-1 93 63 48 77 15 8 < 1.060 1.059 2 0 1.3 1.0OBS 61 AF 5306-4 103 99 73 74 6 20 1.069 1.068 1 20 2.7 3.3OBS 62 AF 5320-3 93 134 92 69 21 10 1.078 1.077 1 10 0.0 0.3OBS 63 AF 5332-2 97 98 86 87 5 8 1.068 1.067 1 5 0.3 0.0OBS 64 AF 5345-3 77 104 72 69 19 12 1.075 1.074 1 15 2.3 1.0OBS 65 AF 5345-9 100 71 44 61 29 9 1.070 1.069 2 10 0.7 0.7OBS 66 AF 5356-3 70 37 22 60 24 16 < 1.060 1.059 1 5 2.0 1.7

Average 90 95 70 73 11 16 1.073 1.071 2 8 0.6 1.0


⁵ Approximate % glucose at time of chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.

⁶ Approximate % glucose 5 weeks after chipping. Average of 3 tubers using Potato Test Strips from Precision Labs, Inc., 9889 Crescent Park Drive, West Chester OH 45069.

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Table 9. Tuber Characteristics for entries grown in the Ohio Triple Observation Trial in 2013. -------------------- External1 ----------------- ----------------------- Internal 2 -------------------------

Entry Entry Skin Skin Tuber Eye Overall Hollow Brown Vsclr % DefectedStudy # Name Color Texture Shape Depth Appear. Heart Center Necrosis Dsclrtn Tubers

OBT 19 AF 4227-2 7 7 2 5 7 0 0 0 2 20OBT 20 AF 4421-4 6 6 3 5 7 0 0 0 1 10OBT 21 AF 4463-8 7 4 3 6 6 0 0 1 0 10OBT 22 AF 4552-5 6 5 2 5 6 0 0 0 1 10OBT 23 AF 4573-2 7 3 3 5 6 0 0 0 1 10OBT 24 AF 4614-2 7 7 4 7 7 0 0 0 0 0OBT 25 AF 4640-1 7 6 2 6 7 0 0 0 3 30


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Table 9 (cont.). Tuber Characteristics for entries grown in the Ohio Double Observation Trial in 2013.

-------------------- External1 ------------------- ------------------------ Internal 2 -------------------------Entry Entry Skin Skin Tuber Eye Overall Hollow Brown Vsclr % Defected

Study # Name Color Texture Shape Depth Appear. Heart Center Necrosis Dsclrtn Tubers

OBD 26 AF 4565-1 2 8 4 6 6 0 0 0 1 10OBD 27 AF 5033-11 7 7 3 5 7 0 0 0 2 30OBD 28 AF 5144-7 7 7 2 6 7 1 0 0 1 20OBD 29 AF 5152-2 6 4 3 7 6 0 0 0 2 20OBD 30 AF 5215-2 7 5 3 7 7 0 0 1 0 0OBD 31 AF 5274-6 2 7 3 7 7 0 0 1 1 10OBD 32 AF 5275-1 2 7 2 7 7 1 0 0 1 20OBD 33 AF 5301-2 9 6 2 5 7 3 0 0 3 50OBD 34 AF 5358-1 7 6 2 8 7 0 0 0 3 30


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Table 9 (cont.). Tuber Characteristics for entries grown in the Ohio Single Observation Trial in 2013.

------------------------ External1 ----------------- ------------------------ Internal 2 -------------------------Entry Entry Skin Skin Tuber Eye Overall Hollow Brown Vsclr % Defected

Study # Name Color Texture Shape Depth Appear. Heart Center Necrosis Dsclrtn Tubers

OBS 35 AF 4702-2 7 7 4 6 8 0 0 1 0 10OBS 36 AF 4736-10 7 7 2 7 7 1 0 0 4 40OBS 37 AF 5033-1 7 7 2 5 7 0 0 0 2 20OBS 38 AF 5037-2 7 7 2 5 5 0 0 0 2 20OBS 39 AF 5039-17 9 7 2 6 7 0 0 0 0 0OBS 40 AF 5040-1 7 7 2 7 7 0 0 0 1 10OBS 41 AF 5040-4 9 8 3 5 7 0 0 0 1 10OBS 42 AF 5040-8 9 7 2 8 7 0 0 0 1 10OBS 43 AF 5042-8 9 7 3 6 7 0 0 1 1 20OBS 44 AF 5044-19 7 6 2 7 7 0 0 0 0 0OBS 45 AF 5044-21 7 7 2 7 7 0 0 0 2 20OBS 46 AF 5068-3 1 7 3 6 7 2 0 0 1 30OBS 47 AF 5084-1 7 5 2 7 6 0 0 0 1 10OBS 48 AF 5138-2 6 3 2 5 5 0 0 0 1 10OBS 49 AF 5152-3 6 6 2 5 6 0 0 0 3 30OBS 50 AF 5153-11 9 7 2 6 7 1 0 0 1 20OBS 51 AF 5154-2 2 8 4 8 8 0 0 0 0 0OBS 52 AF 5160-7 2 8 3 6 6 1 0 0 1 20OBS 53 AF 5161-9 6 4 3 5 6 0 0 0 1 10OBS 54 AF 5189-2 7 7 3 5 6 0 0 0 1 10OBS 55 AF 5225-1 7 4 2 5 7 0 0 0 0 0OBS 56 AF 5243-2 7 7 3 5 5 1 0 0 0 10OBS 57 AF 5245-1 7 6 2 6 6 0 1 0 0 10OBS 58 AF 5281-4 9 7 2 7 7 1 0 0 1 20OBS 59 AF 5286-2 7 8 3 7 7 0 0 0 1 10OBS 60 AF 5295-1 2 8 2 7 8 0 0 0 0 0OBS 61 AF 5306-4 6 4 2 5 6 0 1 0 0 10OBS 62 AF 5320-3 9 7 1 7 7 0 4 0 0 40OBS 63 AF 5332-2 7 4 2 5 6 1 0 0 1 20OBS 64 AF 5345-3 9 7 2 7 5 0 0 1 0 10OBS 65 AF 5345-9 7 7 2 6 6 0 0 0 1 10OBS 66 AF 5356-3 6 8 2 8 7 0 0 0 1 10


15

16

Conversion Table for Specific Gravity of Potato Tubers to Content of Starch and Dry Matter % (Calculated from Von Scheele equations: % starch = 17.565 + 199.07 (Sp. Gr.-1.0988); % dry matter = 24.181 + 211.04 (Sp. Gr.-1.0988)

Specific Gravity

Starch %

Dry Matter %

Specific Gravity

Starch %

Dry Matter%

1.050

7.85

13.88

1.081

14.02

20.43

1.051

8.05

14.09

1.082

14.22

20.64

1.052

8.25

14.31

1.083

14.42

20.85

1.053

8.45

14.32

1.084

14.62

21.06

1.054

8.65

14.73

1.085

14.82

21.27

1.055

8.85

14.94

1.086

15.02

21.48

1.056

9.04

15.15

1.987

15.22

21.69

1.057

9.24

15.38

1.088

15.41

21.90

1.058

9.44

15.57

1.089

15.61

22.11

1.059

9.64

15.78

1.090

15.81

22.33

1.060

9.84

15.99

1.091

16.01

22.54

1.061

10.04

16.21

1.092

16.20

22.75

1.062

10.24

16.42

1.093

16.41

22.96

1.063

10.44

16.63

1.094

16.61

23.17

1.064

10.64

16.84

1.095

16.81

23.38

1.065

10.84

17.05

1.096

17.01

23.59

1.066

11.04

17.26

1.097

17.21

23.89

1.067

11.23

17.47

1.098

17.41

24.01

1.068

11.43

17.68

1.099

17.60

24.22

1.069

11.63

17.89

1.100

17.80

24.44

1.070

11.83

18.10

1.101

18.00

24.65

1.071

12.03

18.32

1.102

18.20

24.86

1.072

12.23

18.53

1.103

18.40

25.07

1.073

12.43

18.74

1.104

18.60

25.28

1.074

12.63

18.95

1.105

18.80

25.49

1.075

12.83

19.16

1.106

19.00

25.70

1.076

13.03

19.37

1.107

19.20

25.91

1.077

13.22

19.58

1.180

19.40

26.12

1.078

13.42

19.79

1.109

29.60

26.34

1.079

13.62

20.00

1.110

19.79

26.55

1.080

13.82

220.21

1.111

19.99

26.76 Factors Affecting the Specific Gravity of the White Potato in Maine. Maine Agricultural Experiment Station. Bulletin 583. May 1959.

17

TUBER DATA RATING SYSTEM Tuber Skin Color Skin Texture Tuber Shape 1. Purple 1. Part. russet 1. Round 2. Red 2. Heavy russet 2. Mostly round 3. Pink 3. Mod. russet 3. Round to oblong 4. Dark Brown 4. Light russet 4. Mostly oblong 5. Brown 5. Netted 5. Oblong 6. Tan 6. Slight netting 6. Oblong to long 7. Buff 7. Mod. smooth 7. Mostly long 8. White 8. Smooth 8. Long 9. Cream 9. Very smooth 9. Cylindrical Eye Depth Appearance 1. VD 1. Very poor 2. -- 2. -- 3. D 3. Poor 4. -- 4. -- 5. Intermediate 5. Fair 6. -- 6. -- 7. S 7. Good 8. -- 8. -- 9. VS 9. Excellent

PLANT RATING SYSTEM

Plant Type Air Pollution 1. Decumbent-poor canopy 1. Dead 2. Decumbent-fair canopy 2. --- 3. Decumbent-good canopy 3. Mod. Defol. 4. Spreading-poor canopy 4. --- 5. Spreading-fair canopy 5. Mod. Injury 6. Spreading-good canopy 6. --- 7. Upright-poor canopy 7. Mild Injury 8. Upright-fair canopy 8. --- 9. No symptoms Plant size Plant Maturity Plant Appearance 1. Very small 1. Very early 1. Very poor 2. + 2. Early 2. Poor 3. Small 3. + 3. + 4. + 4. Medium early 4. -- 5. Medium 5. Medium 5. Fair 6. + 6. Medium late 6. + 7. Large 7. + 7. -- 8. + 8. Late 8. Good 9. Very large 9. Very late 9. Excellent

19 AF 4227-2

20 AF 4421-4

21 AF 4463-8

22 AF 4552-5

23 AF 4573-2

24 AF 4614-2

25 AF 4640-1

26 AF 4565-1

27 AF 5033-1

28 AF 5144-7

29 AF 5152-2

30 AF 5215-2

31 AF 5274-6

32 AF 5275-1

33 AF 5301-2

34 AF 5358-1

2013 ohio potato germplasm evaluation report · brayton orchard, olivia ray, and sonia walker is...

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