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Group Title: Sweet corn variety trials
Title: Sweet corn variety trials, 1970
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Permanent Link: http://ufdc.ufl.edu/UF00075804/00001
 Material Information
Title: Sweet corn variety trials, 1970
Series Title: Sweet corn variety trials
Translated Title: Mimeo report - UF Central Florida Experiment Station ; CFS-71-2 ( English )
Physical Description: Serial
Language: English
Creator: Westgate, P. J.
Forbes, R. B.
Publisher: Central Florida Experiment Station, University of Florida
Publication Date: 1971
 Subjects
Spatial Coverage: United States -- Florida -- Zellwood
 Record Information
Bibliographic ID: UF00075804
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 144607369

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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





pFs 97- 2-




CENTRAL FLORIDA EXPERIMENT STATION

Sanford, Florida


Mimeo Report CFS71-2 September 25, 1970


SWEET CORN VARIETY TRIALS


P. J. Westgate
Professor (Horticulturist)

R, B. Forbes
Associate Professor (Associate Soils Chemist)


Thirty-six varieties of sweet corn from ten seed sources were planted
on Everglades mucky peat at Zellwood on April 15, 1970.

The unfertilized muck analyzed as follows before planting:

pH Nitrogen CaO MgO P205 K20
5.9 Low 12,490 2,189 48 547 lbs/A
On April 10, 1970, all plots were fertilized at the rate of 970 pounds
per acre of a 5-5-8 fertilizer plus Diazinon for wireworm control. This was
the total amount of fertilizer applied for the whole crop. Weeds were con-
trolled in the plots by spraying with Randox and Vegadex at the rate of one
pint each per 100 gallons of water per acre.

The following abbreviations are used for the individual or company
supplying the seed:

EES Everglades Experiment Station, Emil Wolf.
IFS Illinois Foundation Seeds, Champaign, Illinois.
Rob Robson Seed Farms Corp-, Hall, New York.
NK Northrup, King & Co., Minneapolis, Minnesota.
Rog Rogers Brothers Co., Idaho Falls, Idaho.
Key Keystone Seeds Inc., Twin Falls, Idaho.
FM Ferry Morse Seed Co., Caldwell, Idaho.
Bur W. Atlee Burpee Co., Philadelphia, Pennsylvania.
ASG Asgrow Seed Co., Bradenton, Florida. H .. LL. ..
JH Joseph Harris Co., Inc., Rochester, New Yo k.It ."'7


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Each of the 36 varieties of sweet corn were replicated four times in
randomized plots. Each plot consisted of two rows each 20 feet long, and
36 inches apart. Each harvested plot consisted of 15 feet of single row or
0.001 acres. The ears harvested from each plot were weighed, and the total
crates per acre calculated at 42 pounds per crate. Ten ears were selected
at random from each plot, and graded into Fancy, No. l's, and culls. Any ear
of less than six inches, or more than one inch of unfilled tip, or with poor
pollination was graded out as a cull.


The sweet corn variety trials were planted on April 15,
harvested from June 18, 1970 to June 26, 1970, depending upon
summary of the weather for this growing season is as follows:


April 1-31, 1970
Lowest temperature:
Highest temperature:
Rainfall. Total

May 1-31, 1970
Lowest temperature:
Highest temperature:
Rainfall: Total

June 1-26, 1970
Lowest temperature:
Highest temperature:
Rainfall. Total


39.5
96 F
0.48


49 F
94 F
2.67


59 F
97 F
6.68


1970, and
maturity.


F oh April 8, 1970.
on April 22, 1970.
inches.


on May 6, 1970.
on May 15, 1970.
inches.


on June 8, 1970.
on June 19, 1970.
inches.


Blight ratings were made on all varieties on June 18, 1970, at time of
harvest. Blight ratings (Helminthosporium turcicum Pass.) were based on
Ullstrup's scale extending from 0.25, highly resistant, to 5.0, highly
susceptible.

A summary of data for the 36 sweet corn varieties on muck at Zellwood
for the 1970 spring crop is given in Table 1.

Gold Cup (Joseph Harris Seed Co., Inc., Rochester, N. Y.) is the
standard sweet corn variety on the muck at Zellwood.

Resistant Staysweet, bred by E. A. Wolf, Everglades Experiment Station,
was of superior yield, quality, and appearance in comparison to Illinichief
Xtra-sweet (Illinois Foundation Seeds, Champaign, Illinois).

Experimental #435 (Northrup, King &Co., Minneapolis, Minn.) showed up
well in yields in comparison to all other sweet corn varieties tested.







Sweet corn variety trial, Zellwood, Florida, 1970.


Leaf Crates/A
Leaf blight Total % Crates/A fancy
Plot Seed blight resistance crates/A Fancy fancy + No. l's
No. Varieties source 0-5 rank 42#/crate + No. V's + No. l's rank

1 Staysweet EES 2.1 7 317 77 244 21
2 Staysweet, Resistant EES 2.1 8 210 77 162 33
3 Staysweet, Resistant (E) EES 1.9 4 360 100 360 1st
4 Illinichief Xtra-sweet IFS 3.3 31 171 93 159 35
5 Illinichief Xtra-sweet IFS 3-5 33 205 80 164 34
6 Seneca Scout Rob 2.9 23 288 93 268 15
7 Seneca 110 Rob 2.1 9 279 95 265 16
8 Yukon NK 2.5 16 360 85 306 7 o
9 Expt. #435 NK 2.0 6 383 90 345 2nd
10 Expt. #6619 NK 2.4 13 310 65 202 27
11 Expt. #6619 (R) NK 2.4 14 310 80 248 17
12 Silver Queen Rog 1.9 5 319 93 297 9
13 Golden Queen Rog 1.8 2nd 293 83 243 23
14 Gold Rush Key 4.0 34 224 50 112 36
15 Butters-eet Key 2.4 15 276 78 215 25
16 Hybrid #5100 Key 2.6 18 276 90 248 18
17 E5545A FM 3.5 32 336 85 286 11
18 E5625 FM 3.1 29 345 90 311 6
19 E7515 FM 1.8 3rd 274 90 247 20
20 Golden Beauty Hybrid Bur 4.1 36 205 88 180 31


Continued on next page


Table 1.







Table 1. Sweet corn variety trial, Zellwood, Florida, 1970.


Leaf Crates/A
Leaf blight Total Crates/A fancy
Plot Seed blight resistance crates/A Fancy fancy + No. i's
No. Varieties source 0-5 rank 42#/crate + No. l's + No. i's rank

21 Burpee's Honey Cross Bur 2.8 20 307 95 292 10
22 Burpee's Snow Cross Bur 2.3 12 336 93 312 5
23 Burbank Hybrid Bur 3.1 30 333 90 300 8
24 Gusto (XP344) ASG 2.6 19 248 80 198 30
25 XP349 ASG 2.9 24 340 93 316 4

26 XP346 ASG 3.1 28 238 83 198 29
27 XP357 ASG 2.1 11 240 83 199 28
28 Expt. Hybrid H-18 JH 2.1 10 438 78 342 3rd
29 Silver Bells JH 2.9 25 267 85 270 13
30 Silver Queen JH 1.7 1st 250 83 208 26

31 Hybrid D638 JH 2.8 21 271 100 271 12
32 Northern Belle JH 2.8 22 276 90 248 19
33 Gold Winner JH 4.o 35 274 60 164 32
34 Gold Cup 4967 JH 2.5 17 279 83 232 24
35 Harris Gold Cup 118 JH 3,o 27 358 75 269 14
36 Harris Gold Cup 118 JH 2.9 26 312 78 243 22


(Cont'd)




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