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Group Title: Sweet corn cultivar trial, Zellwood, Florida
Title: 1981 Sweet corn cultivar trial, Zellwood, Florida
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Permanent Link: http://ufdc.ufl.edu/UF00075805/00003
 Material Information
Title: 1981 Sweet corn cultivar trial, Zellwood, Florida
Series Title: Sweet corn cultivar trial, Zellwood, Florida
Alternate Title: Research report - UF Agricultural Research and Education Center ; CF-82-2
Physical Description: Serial
Language: English
Creator: White, J. M.
Publisher: Central Florida Experiment Station, University of Florida
Publication Date: 1982
 Record Information
Bibliographic ID: UF00075805
Volume ID: VID00003
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 144607373

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HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida




(OD




University of Florida
Agricultural Research and Education efiert..
Sanford, Florida
Research Report CF82-2 JLj 'August 14, 9

Sweet Corn Cultivar Trial, Zellwood .FlprAda

J. M. White ^+--- o ..,
... .. -." ?

Sweet corn is an important crop in Florida with a reported value of
$56.1 million in 1979-80. Florida is the nation's leading sweet corn
producer for fresh market with 11.2 million crates. Leading cultivars in
the Zellwood area are Gold Cup, Bonanza, and Silver Queen.

With new lines and cultivars being developed, it becomes important to
evaluate these lines for their adaptability to central Florida, yield,
quality, and disease resistance.

Five shrunken-2 (sh2) sweet corn lines were planted on February 13,
1981, in Lauderhill muck soil in Zellwood, Florida. Five white sweet corn
lines were planted on March 24, 1981, and 38 yellow and bi-color lines were
planted on April 9, 1981. Planting on different dates was to minimize
cross-pollination of the different types. Seeds were hand planted, one
kernel per drop, nine inches apart. Three row plots, three feet wide and
25 feet long were replicated five times. The center row was harvested for
recording data. Prior to planting, 600 pounds per acre of 5-5-8 fertilizer
was broadcast and disked to incorporate. A 2% parathion bait was used for
wireworm control at the rate of 40 pounds material per acre. Lasso was
applied for weed control. A post application of atrazine was applied to
the February planting. No fungicides were applied and the incidence of
disease was low at harvest. Methomyl was applied twice with ground equip-
ment. There was some corn earworm damage which would not have been
commercially acceptable, but was not considered a factor in this test.

Plots were harvested as close to optimum maturity as possible. Each
cultivar was harvested once when the majority of ears were mature. Yield
data from small plots should be used in comparison with other lines in this
trial and not as expected yields under commercial conditions.

Data was collected by counting the number of stalks per 25 feet of plot
row, ears counted and weighed with the husk on. Ear length and width
(diameter) measurements were taken from a random sample of ten husked ears
per replication. Ear tip fill was assigned a value of 5 when completely
filled and a value of I if over one inch of the tip was not filled. A
value of less than 2.5 would be questionable for commercial fresh market.

Table 1 has the yield data for the sh2 and white sweet corn lines
evaluated. Sugar Loaf and Honey Comb yielded more ears, but not significantly
more than the standard Florida Stay Sweet. Honey Comb and Golden Nectar had
poor ear tip fill scores (2.0 and 2.3). The standard white sweet corn, Silver
Queen, had a significantly higher yield than E-9501 and Silver Chief. Silver
Chief had large ears with poor tip fill.














In the last several years, Gold Cup has been a leading yellow cultivar
in the Zellwood area and has been used as a standard to evaluate other lines.
In this test, 33 cultivars were significantly lower in number of marketable
ears than Gold Cup. Only NCX2022 produced significantly more ears than Gold
Cup, but NCX2022 had poor ear tip fill (2.3) (Table 2).

Seeds were obtained from the following sources:
A-1 Abbott & Cobb, P. 0. Box 307, Feasterville, PA 19047
A-2 Asgrow Seed Co., Kalamazoo, MI
B Burpee Seed Co., 300 Park Ave., Warminster, PA 18991
F Ferry-Morse Seed Co., San Juan Bautista, CA 95045
H Joseph Harris Co., Moreton Farm, Rochester, NY 14624
N Niagara Seeds, FMC Corp., 1524 McHenry Ave., Modesto, CA 95353
R-1 Robson Seed Farm, 1 Seneca Circle, Hall, NY 14463
R-2 Rogers Brothers Seed Co., P. 0. Box 1069, Nampa, ID 83651
S Sun Seeds, Inc., P. 0. Box 20726, 9301 Bryant Ave. South, Bloomington,
MN 55420






Table 1. Average yield, ear size, and general characteristics of sh2 and white sweet corn
cultivars, Zellwood, Florida, 1981.

Avg. No.
Days Doz. wt./ mkt. No. EarY
to ears/ ear ears/ EarL(cm) rows of tip Huskx Height cm
Cultivarz Source harvest ha (g) stalk length width kernels fill cover stalks ear
sh2 sweet corn

Sugar Loaf S 111 470 345 0.98 19.9 4.8 16.0 3.5 3.8 164 62
Honey Comb S 111 461 414 0.97 21.7 5.0 16.5 2.0 4.5 163 59
Sugar Time S 111 441 352 0.99 20.9 4.7 14.5 4.0 3.8 162 70
Fla. Stay Sweet A-1 111 436 435 1.02 20.6 4.7 16.0 5.0 5.0 172 70
Golden Nectar S 111 412 408 0.97 21.3 5.0 18.0 2.3 3.3 162 50
LSD 0.05 34.9 19.8 0.38 0.15
White sweet corn
Silver Queen A-1 77 519 364 1.18 20.2 4.8 13.5 4.5 4.5 192 82
White Lightning A-1 77 519 333 1.01 20.0 4.8 15.0 4.5 3.0 207 87
Silver Queen R-2 77 515 376 1.04 20.3 4.8 15.0 5.0 4.5 192 76
E-9501 F 77 470 340 0.86 20.8 4.7 17.5 4.5 3.0 191 75
Silver Chief A-2 77 451 495 0.91 24.4 5.0 15.0 2.5 5.0 188 73
LSD 0.05 31.5 35.0 0.85 0.22


ZCultivars grouped by days to harvest and then ranked by yield


in dozen ears per hectare.


YEar tip fill: 1=over 1 inch of tip not filled; 5=1/4 or less of tip not filled.
XHusk cover; l=poor with exposed kernels; 5=excellent with 1 inch or more cover.
WStalk height from ground to base of tassel.
VEar height from ground to base of ear.








Table 2. Average yield, ear


size, and general characteristics of replicated sweet corn
cultivars, Zellwood, Florida, 1981.


CultivarZ


Source


Days
to
harvest


Doz.
ears/
ha


Avg.
wt./
ear
(q)


No.
mkt.
ears/
stalk


Ear (cm)
length width


No.
rows of
kernels


Eary
tip
fill


Huskx Height (cm)
cover stalks earv


Debut
Reward
NCX 2022
Hyb. 1766
Exp. 5133

Reliance
NCX 2028
Gold Cup
Bonanza
ACX 2327

E-8501
Monarch Advance
Hyb. 2269
Hyb. 2327
XP. 2539

Kandy Korn
NCX 2021
Wintergreen
NCX 2029
Exp. 5651.


0


62
62
67
67
67

67
67
68
68
68

68
69
69
69
69

69
69
69
69
69


407
382
544
417
412

358
338
446
348
319

314
426
426
407
382

368
358
343
333
299


245
313
291
368
359

281
318
291
377
300

268
486
281
313
345

304
268
322
309
327


0.78
0.92
1.05
0.86
0.90

0.75
0.65
1.05
0.77
0.66

0.70
0.99
1.13
0.86
0.98
0.83
0.83
0.97
0.68
0.66


19.8
20.9
19.4
21.2
20.3

19.3
21.1
20.0
22.8
22.5

19.7
24.7
20.9
21.8
23.2

19.9
20.9
21.0
20.5
21.1


4.5
5.0
4.5
5.0
4.9

4.8
4.5
4.6
4.6
4.5

4.6
5.3
4.3
4.4
4.6

4.5
4.6
4.3
4.6
4.9


17.5
18.5
15.5
17.5
20.5

15.5
14.0
15.0
17.0
15.0

17.5
17.0
15.5
15.0
14.0

15.5
14.5
15.0
17.5
17.0


2.5
2.0
2.3
3.0
1.3

2.8
3.0
4.0
2.5
3.0

2.3
2.8
3.3
3.0
3.0

2.0
1.0
3.0
3.5
1.0


4.0
4.3
3.8
3.8
5.0

3.8
4.0
4.0
2.8
2.0

1.8
1.8
4.0
2.5
1.8

3.8
1.3
2.8
4.0
4.0


141
145
165
168
151

126
154
174
175
150

180
169
174
138
162

176
174
162
179
160


36.6
43.9
53.3
50.3
46.9

43.3
55.8
64.0
69.5
50.6

60.0
63.1
56.7
48.5
65.8

60.7
64.6
50.6
65.5
57.3


Cont'd.


1


- -1-


Cu t vr






Table 2. Cont'd.

SAvg. No.
Days Doz. wt./ mkt. No. Eary
to ears/ ear ears/ Ear (cm) rows of tip Huskx Height (cm)
Cultlvar Source harvest ha (g) stalk length width kernels fill cover stalkw ear
Seneca RPX258 R1 69 284 322 0.92 23.0 4.7 16.5 2.5 1.8 156 65.2
Marada A2 69 279 309 0.68 22.4 4.4 16.0 2.8 4.0 167 50.0
XP. 2555W A2 71 397 359 0.89 21.8 4.7 16.5 3.8 3.8 204 85.0
Exp. 5641 S 71 392 345 0.98 20.6 4.5 16.5 2.8 3.8 167 62.5
Guardian A2 71 377 341 0.78 21.4 4.5 16.5 2.8 3.0 165 59.4
Hyb. 2683 R2 71 372 418 1.03 21.5 4.7 17.5 3.0 3.3 206 66.4
Seneca Scout RI 71 328 313 0.73 19.6 4.4 15.0 1.5 4.0 179 80.8
Atlantic N 71 323 363 0.94 21.4 4.9 17.0 3.8 4.3 180 87.2
78-2581 R2 71 265 277 0.70 20.6 4.3 16.5 2.5 3.8 163 66.8
Hyb. 2041 R2 71 240 295 0.55 20.4 4.3 16.0 3.3 3.8 152 56.4
E-9502 F 73 353 377 0.77 23.4 4.6 16.5 4.0 4.0 216 73.8
Seneca RXP231 R1 74 461 322 0.95 22.2 4.8 17.5 2.0 2.0 181 75.3
Hyb. 2883 R2 74 382 341 0.83 22.2 4.7 19.0 1.8 1.5 165 68.0
Golden Belle N 74 299 359 0.95 22.5 4.8 15.5 4.0 2.3 178 66.8
Seneca RXP201 R1 76 328 354 0.81 21.3 4.4 15.5 4.0 4.0 181 71.3
Seneca Sentry R1 76 294 390 1.15 20.9 5.0 16.5 4.0 4.0 187 78.3
Seneca RXP289 R1 76 235 254 0.62 19.4 4.4 14.5 3.0 1.3 137 45.4
XP. 2554W A2 76 152 277 0.48 20.9 4.5 15.0 3.0 3.3 148 54.6
LSD 0.05 25.3 42.2 1.15 0.21


ZCultivars grouped by days to harvest and then


ranked by yield in dozen ears per hectare.


YEar tip fill: l=over 1 inch of tip not filled; 5=1/4 or less of tip not filled.
XHusk cover: 1=poor with exposed kernels; 5=excellent with 1 inch or more cover.
WStalk height from ground to base of tassel.
YEar height from ground to base of ear.




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