Chapter 8. Late Harvest Potato Variety Trial, 20061
General Comments: A goal of the Late Harvest potato variety trial is to identify varieties that yield well and have an acceptable appearance when harvested later in the season when growing conditions are usually more stressful. |
|
Planting Information |
|
Planting Site |
PSREU - Hastings Farm, Hastings, FL |
Planting Date |
February 14, 2006 |
Vine Kill Date |
May 25, 2006 |
Harvest Date |
June 14, 2006 |
Season Length |
100 days planting to vine kill; 120 days planting to harvest |
Fertilizer Program |
preplant, 100-43-86 lb/A; sidedress 50-0-43 (2 appl.) |
Irrigation Program |
seepage |
Experimental Design |
|
Number of Selections |
15 |
Within Row Spacing |
8 in (20.3 cm) |
Between Row Spacing |
40 in (101.6) |
Replications |
4 |
Plot Size |
16 ft (4.9 m) single row |
Production Statistics |
|
Highest Total Yield |
Fabula (468 cwt/acre or 52.4 MT/ha) |
Highest Marketable Yield |
Atlantic (393 cwt/acre or 44.0 MT/ha) |
Best Appearance Rating |
LaChipper and Belrus (7.0, good to excellent) |
Highest Specific Gravity |
Atlantic (1.086) |
Tables
Production statistics for "Late Harvested" White, Red, and Russet-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 |
Atlantic |
448 |
393 |
100 |
1 |
6 |
62 |
25 |
6 |
0 |
93 |
31 |
1.086 |
Adora |
373 |
251 |
64 |
1 |
22 |
70 |
6 |
0 |
0 |
76 |
6 |
1.067 |
Andover |
342 |
291 |
74 |
1 |
8 |
76 |
14 |
2 |
0 |
91 |
16 |
1.082 |
Belrus |
306 |
255 |
65 |
2 |
14 |
81 |
3 |
1 |
0 |
84 |
3 |
1.085 |
Cherry Red |
346 |
280 |
71 |
2 |
15 |
73 |
8 |
3 |
0 |
84 |
10 |
1.081 |
Fabula |
468 |
374 |
95 |
0 |
4 |
70 |
16 |
9 |
0 |
95 |
25 |
1.062 |
Goldrush |
365 |
303 |
77 |
1 |
12 |
69 |
13 |
4 |
0 |
87 |
17 |
1.071 |
LaChipper |
401 |
327 |
83 |
2 |
12 |
74 |
7 |
5 |
0 |
86 |
12 |
1.071 |
LaRouge |
453 |
388 |
99 |
1 |
8 |
76 |
12 |
3 |
0 |
91 |
15 |
1.070 |
Red LaSoda |
436 |
378 |
96 |
0 |
6 |
60 |
25 |
9 |
0 |
94 |
34 |
1.067 |
Red Pontiac |
435 |
355 |
90 |
1 |
8 |
69 |
15 |
6 |
0 |
90 |
21 |
1.068 |
Russet Burbank |
412 |
226 |
57 |
3 |
29 |
58 |
11 |
0 |
0 |
69 |
11 |
1.073 |
Russet Norkotah |
348 |
217 |
55 |
2 |
14 |
73 |
5 |
5 |
0 |
84 |
11 |
1.063 |
Sebago |
417 |
324 |
82 |
1 |
12 |
78 |
5 |
4 |
0 |
86 |
9 |
1.070 |
Vivaldi |
442 |
251 |
64 |
3 |
38 |
59 |
0 |
0 |
0 |
59 |
0 |
1.067 |
MSD3 |
98 |
117 |
ns |
11 |
ns |
20 |
7 |
ns |
12 |
20 |
0.005 |
|
P Value |
0.0001 |
0.0003 |
0.1198 |
0.0001 |
0.0537 |
0.0092 |
0.0022 |
0.4635 |
0.0001 |
0.0005 |
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. |
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Plant growth characteristics and tuber appearance of "Late Harvested" White, Red, and Russet-Skinned potato selections.
Plant Growth Characteristics1 |
|||||
% |
Early |
Vine |
Vine |
Tuber |
|
Clone |
Stand |
Vigor |
Type |
Maturity |
Appearance2 |
Atlantic |
99 |
na |
9-6 |
5.3 |
6 |
Adora |
100 |
na |
9-6 |
2.3 |
5 |
Andover |
97 |
na |
8 |
1.8 |
6 |
Belrus |
99 |
na |
9 |
3.0 |
7 |
Cherry Red |
100 |
na |
9 |
2.8 |
6 |
Fabula |
85 |
na |
8 |
5.5 |
6 |
Goldrush |
100 |
na |
9 |
3.0 |
8 |
LaChipper |
100 |
na |
9-6 |
1.5 |
7 |
LaRouge |
100 |
na |
9-6 |
3.0 |
6 |
Red LaSoda |
100 |
na |
9-6 |
3.5 |
5 |
Red Pontiac |
100 |
na |
9-6 |
2.3 |
3 |
Russet Burbank |
98 |
na |
8.8 |
5.3 |
4 |
Russet Norkotah |
91 |
na |
8-9 |
3.0 |
4 |
Sebago |
98 |
na |
8.5 |
4.3 |
5 |
Vivaldi |
98 |
na |
8-9 |
2.3 |
5 |
1See rating system outlined in Chapter 1. 2See rating system outlined in Chapter 1. |
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External and internal defects of "Late Harvested" White, Red, and Russet-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 |
Atlantic |
0 |
0 |
1 |
4 |
5 |
0 |
0 |
0 |
5 |
0 |
0 |
0 |
Adora |
0 |
4 |
3 |
6 |
12 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Andover |
0 |
0 |
1 |
6 |
7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Belrus |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Cherry Red |
0 |
0 |
0 |
3 |
3 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Fabula |
0 |
0 |
1 |
15 |
17 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Goldrush |
0 |
2 |
0 |
2 |
4 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
LaChipper |
0 |
1 |
2 |
3 |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
LaRouge |
1 |
1 |
0 |
4 |
6 |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
Red LaSoda |
1 |
1 |
1 |
5 |
7 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
Red Pontiac |
0 |
0 |
1 |
9 |
9 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
Russet Burbank |
1 |
15 |
1 |
5 |
21 |
0 |
0 |
0 |
4 |
0 |
0 |
0 |
Russet Norkotah |
0 |
0 |
0 |
29 |
30 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
Sebago |
0 |
0 |
3 |
7 |
10 |
0 |
0 |
0 |
4 |
0 |
0 |
0 |
Vivaldi |
0 |
0 |
1 |
4 |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
MSD3 |
1 |
2 |
3 |
10 |
10 |
0 |
0 |
0 |
5 |
ns |
ns |
ns |
P Value |
0.0013 |
0.0001 |
0.0389 |
0.0039 |
0.0006 |
- |
- |
- |
0.0201 |
0.4635 |
0.4635 |
0.4635 |
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. |
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Footnotes
This document is HS1092, 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 March 21, 2007. Visit the EDIS Web Site at http://edis.ifas.ufl.edu.
Chad M. Hutchinson, Associate professor, Doug Gergela, Sr. Bilogical 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 does 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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