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Chapter 4. Red and Purple-Skinned Fresh Market Potato Variety Trial, 20061
C.M. Hutchinson and Doug Gergela2
General Comments: A goal of the red/purple-skinned fresh market variety trial is to identify a red potato that has better quality and production characteristics than Red LaSoda or LaRouge.Identification of "specialty" potatoes that expand the marketable varieties produced in Florida is also a priority. Established varieties were included to provide a baseline for the numbered clones.
Planting Information
Planting Site
PSREU - Hastings Farm, Hastings, FL
Planting Date
January 31, 2006
Vine Kill Date
April 28, 2006
Harvest Date
May 15, 2006
Season Length
87 days planting to vine kill; 104 days planting to harvest
Fertilizer Program
preplant, 100-43-86 lb/A; sidedress, 65-0-56 lb/A; (2 appl.)
Irrigation Program
seepage
Experimental Design
Number of Varieties
9 (Standard: Red LaSoda)
Number of Clones
7
Within Row Spacing
8 in (20 cm)
Between Row Spacing
40 in (102 cm)
Replications
4
Plot Size
16 ft (4.9 m)
Production Statistics
Early Vigor Ratings
41 days after planting
Highest Total Yield
Red LaSoda (431 cwt/acre or 48.3 MT/ha)
Highest Marketable Yield
Red LaSoda (399 cwt/acre or 44.7 MT/ha)
Best Appearance Rating
B2327-2 (6.5, fair to good)
Tables
Table 2. Production statistics for Red and Purple-Skinned potato selections.
Total
Marketable Yield1
Size
Size Class
Yield
% of
Distribution by Class (%)2
Range (%)
Specific
Clone
(cwt/A)
(cwt/A)
standard
C
B
A1
A2
A3
A4
A1 to A3
A2 to A3
Gravity
Red LaSoda
431
399
100
1
4
66
28
0
0
95
29
1.063
Red LaSoda10
376
347
87
0
5
74
20
1
0
94
21
1.064
Red LaSoda13
391
356
89
0
3
70
23
4
0
97
26
1.063
All Blue
266
87
22
4
63
33
0
0
0
33
0
1.071
Cherry Red
256
221
55
1
11
84
4
0
0
88
4
1.071
Chieftain
314
263
66
1
13
84
2
0
0
87
3
1.060
Dark Red Norland
318
282
71
1
7
85
7
0
0
92
7
1.063
LaRouge
412
374
94
1
7
84
8
0
0
92
8
1.063
Red Pontiac
374
337
84
1
6
72
21
1
0
93
22
1.062
B0984-1
340
296
74
1
9
66
22
2
0
90
25
1.074
B1816-5
333
273
68
2
15
84
0
0
0
84
0
1.070
B2152-17
316
221
55
1
28
69
1
0
0
70
1
1.069
B2327-2
225
138
35
5
33
62
0
0
0
62
0
1.064
B2332-2
379
325
81
2
9
58
22
9
0
89
31
1.063
NY129
226
193
48
1
11
86
2
0
0
88
2
1.057
NY136
322
234
58
2
25
68
6
0
0
73
6
1.066
MSD3
67
76
2
10
14
6
6
0
11
10
0.006
P Value
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0015
-
0.0001
0.0001
0.0001
1Marketable Yield: size classes A1 to A3. 2Size classes: C = .5 to 1.5" , B = 1.5 to 1 7/8", A1 = 1 7/8 to 2.5", A2 = 2.5 to 3.25", A3 = 3.25 to 4", A4 = >4"
3Means separated within columns by Tukey's Studentized Range (HSD) Test.
Table 3. Plant growth and tuber characteristics of Red and Purple-Skinned potato selections.
Plant Growth Characteristics1
Tuber Characteristics2
%
Early
Vine
Vine
Clone
Stand
Vigor
Type
Maturity
IFC
SC
ST
TS
ED
APP
Tuber Comments
Red LaSoda
100
5.5
9.0
8.0
1.0
2.5
7.0
2.5
4.0
6.0
light skin color
Red LaSoda10
95
6.5
9.0
7.0
1.0
2.5
7.0
2.5
4.0
6.0
light skin color
Red LaSoda13
98
5.5
9.0
8.0
1.0
2.5
7.0
2.5
4.0
6.0
light skin color
All Blue
79
5.0
8.8
8.0
8.0
1.0
5.5
4.5
4.5
4.5
mottled flesh color
Cherry Red
95
5.5
8.3
8.3
2.0
2.0
6.0
3.5
5.0
5.5
too much netting
Chieftain
100
6.0
9.0
7.8
1.0
3.0
6.0
2.5
5.5
5.0
too much netting
Dark Red Norland
96
6.5
8.3
6.5
1.0
2.5
6.5
3.5
7.0
6.0
sl. flat
LaRouge
97
6.3
9.0
7.3
2.0
2.5
7.0
3.5
4.5
5.5
all shapes
Red Pontiac
100
6.5
9.0
8.0
2.0
2.5
6.0
2.5
5.5
4.0
very poor appearance
B0984-1
96
6.3
8.3
7.8
2.0
1.5
6.0
2.5
6.5
6.0
dark skin color
B1816-5
100
6.0
8.8
7.8
4.0
1.5
5.5
3.0
6.5
6.0
nice yellow flesh
B2152-17
100
6.5
9.0
7.5
3.0
2.0
6.0
2.5
6.5
6.0
dark skin color, flat
B2327-2
97
5.3
8.3
6.8
1.0
2.0
7.0
2.0
7.0
6.5
dark skin color
B2332-2
100
6.8
8.0
6.8
2.0
2.5
7.0
2.5
6.5
6.0
sl. mishapen
NY129
86
4.8
7.0
8.0
1.0
2.5
6.0
2.5
7.5
6.0
dark skin, too much netting
NY136
97
7.3
8.7
6.5
1.0
2.0
6.5
2.5
7.0
6.0
very dark skin
1See rating system outlined in Chapter 1. 2See rating system outlined in Chapter 1.
Table 4. External and internal defects of Red and Purple-Skinned potato selections.
% External Tuber Defects
% Internal Defects2
Growth
Mis-
Sun-
Rotten
Total
Brown Center
Clone
Cracks
shapen
burned
& misc.
Culls1
HH
BR
CRS
IHN
L
M
H
Red LaSoda
0
0
0
2
3
0
0
0
0
1
0
0
Red LaSoda10
0
0
0
2
2
0
0
0
0
0
0
0
Red LaSoda13
2
0
1
3
6
0
0
0
0
1
1
0
All Blue
0
0
0
1
1
0
0
0
0
0
0
0
Cherry Red
0
1
0
1
1
0
0
0
0
0
0
0
Chieftain
0
0
0
3
3
0
0
0
0
0
0
0
Dark Red Norland
0
0
0
3
4
0
0
0
0
0
0
0
LaRouge
0
0
0
0
1
0
0
0
0
5
1
0
Red Pontiac
0
0
1
2
3
0
0
0
0
0
0
0
B0984-1
0
0
0
3
4
0
0
0
0
0
0
0
B1816-5
0
0
1
1
3
0
0
0
0
0
0
0
B2152-17
0
0
0
1
1
0
0
0
0
0
0
0
B2327-2
0
1
0
2
2
0
0
0
0
0
0
0
B2332-2
0
0
2
2
4
1
0
0
0
0
0
0
NY129
0
0
0
3
3
0
0
0
1
0
0
0
NY136
0
0
1
1
2
0
0
0
0
0
0
0
MSD3
1
ns
2
3
ns
ns
0
0
ns
5
ns
0
P Value
0.0176
0.1345
0.0013
0.0185
0.0822
0.4613
-
-
0.4613
0.0176
0.4613
-
1Percent of Total Yield. Total culls include the sum of growth cracks, misshapen, sunburned and rotten/misc. 2Percent tubers; HH, hollow heart; BR, brown rot; CRS, corky ring spot; IHN, internal heat necrosis.
Brown Center: L = Light, M = Moderate, H = Heavy
3Means separated within columns by Tukey's Studentized Range (HSD) Test.
Footnotes
1. This document is HS1089, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date June, 2007. Visit the EDIS Web Site at http://edis.ifas.ufl.edu.2. Chad M. Hutchinson Associate Professor, Doug Gergela, Sr. Biological Scientist, Horticultural Sciences Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville 32611.
The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication do not signify our approval to the exclusion of other products of suitable composition. All chemicals should be used in accordance with directions on the manufacturer's label. Use pesticides safely. Read and follow directions on the manufacturer's label.
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U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean.
Copyright Information
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