Group Title: Sweet corn variety trial.
Title: Sweet corn variety trial. Spring 1988
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 Material Information
Title: Sweet corn variety trial. Spring 1988
Series Title: Sweet corn variety trial.
Translated Title: Research Report - University of Florida Central Florida Research and Education Center ; 89-01 ( English )
Physical Description: Serial
Language: English
Creator: Hancik, I. D.
White, J. M.
Neal, C. A.
Llewellyn, W. R.
Publisher: Central Florida Research and Education Center, University of Florida
Publication Date: 1988
 Record Information
Bibliographic ID: UF00075806
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 144607375

Full Text
/00


a..


University of Florida
Central Florida Research & Education Center.! ''.
Sanford, Florida l.


Research Report SAN 89-01


rSeptemb er ,I988
, \ *' l'*t I. J t


SWEET CORN VARIETY TRIAL, SPRING 1988


cF:"


I. D. Hancik, J. M. White, C. A. Neal, and W. R. L1ewelITyf.---"...


A supersweet (shrunken-2 gene) sweet corn variety trial was
conducted on Zellwin Farms and Long and Scott Farms in Zellwood, FL,
during the spring of 1988. This trial was limited to cultivars/breeding
lines of the gene type homozygous shrunken 2 (sh2), i.e., supersweets,
since these cultivars are considered the new standard for large
commercial growers. The kernels of supersweet corn have at least 2-3
times the total sugars of normal sweet corn at optimum harvest;
conversion of sugar to starch is also much slower in the supersweet
lines. This slower conversion facilitates a longer harvest and storage
period along with an increased time for consumption. Consumer
preference has also shifted toward the supersweet types of sweet corn.
In light of the widespread use of the sh2 type sweet corn, it is
important to evaluate commercially available and advanced breeding lines
for their adaptability to central Florida growing conditions.

Materials & Methods

Trial I


-location:
-planting date:
-plot size:
-soil type:
-number of entries:
-harvest dates:


Zellwin Farms, Zellwood, FL
March 11, 1988
single row, 3' wide x 20' long
Lauderhill muck
68 lines
5/31, 6/2, 6/6, 6/10/88


Trial II


-location:
-planting date:
-plot size:
-soil type:
-number of entire:
-harvest dates:


Long & Scott Farms, Zellwood, FL
April 14, 1988
single row, 3' wide x 12' long
Lauderhill muck
70 lines
6/24, 6/28/88


Seed of supersweet sweet corn cultivars was planted by hand in
single-row plots with an in-row spacing of 9" between seeds. Two
cultivars (XPH 2659 and Even Sweeter) were double planted at the request
of the supplier to compensate for poor germination. No thinning of corn
seedlings was required. Three replications of 68 and 70 cultivars
(Tables 1 & 2) in Trials I and II, respectively, were arranged in a
completely randomized block design.








Cultural practices, provided by the cooperating growers, compare
with the routine practices used by commercial growers to produce a sweet
corn crop in central Florida.

Plots were harvested by hand at peak maturity. Only first ears
were harvested and individual plots were harvested one time only. Ears
were counted and weighed; subsamples of 10 marketable ears per plot were
selected, husked, and evaluated for length, width, maturity, tip fill,
husk cover, and kernel color.

Plant stand, plant height, and height to the first ear were also
recorded (Tables 1 & 2). Weather data is reported in Table 3.


Results and Discussion

Sweet corn yields, expressed as crates/acre, ranged from 132-467
crates in Trial I and 76-387 in Trial II. High-yielding cultivars in
Trial I included XPH 2659, Sweet Belle, Summer Sweet 7900, Summer Sweet
7810, and XPH 2640. The top yielders in Trial II included XPH 2623,
Illini Gold, Summer Sweet 7610, G.S.S. 3845, and F.M.X. 77. Two
cultivars, Summer Sweet 8801 and How Sweet It Is, produced consistently
poor results in both trials.

Summer Sweet 8801 and Sunex 2616' produced low plant stands (<46%)
in both trials. A good plant stand was obtained with Illini Gold in
Trials I and II.

Ear characteristics were variable in both trials. Ear length
ranged from 6.9" (How Sweet It Is and Summer Sweet 8802) to 8.4" (Sunre
2620) in Trial I; lengths ranged from 6.0" (Summer Sweet 7400) to 8.7"
(GSS 3376) in Trial II. Ear width was fairly consistent between the two
trials, ranging from 1.4-2.0".

Plants were generally taller in Trial I (4.1-6.8') than Trial II
(3.1-5.9'). The tallest varieties in Trials I and II were GSS 3279 and
Sunre 3579, respectively. Eight varieties topped the 6-ft mark in Trial
I, including: XPH 2659, Even Sweeter, Butterfruit Bicolor, Summer Sweet
8000, GSS 3845, GSS 3376, GSS 3548, and HMX 4379. Summer Sweet 6700 was
the shortest variety in Trial II (4.1'), while Upmost produced short
plants (at/near 4') in both trials.

Placement of the first ear on the stalk is important in evaluating
a cultivar's potential adaptability to mechanical harvesting. Height to
the first ear ranged from 0.80 2.40' in both trials. The cultivar,
Upmost, had first first ears below 1' from the ground (0.70 and 0.80')
in both trials.

Among the top five yielding cultivars (XPH 2659, Sweet Belle,
Summer Sweet 7900, XPH 2640, and Summer Sweet 7810) in Trial I, Summer
Sweet 7810 was slightly earlier than the other four and displayed good
ear characteristics (tip fill/husk cover) as well. XPH 2623 was a few
days earlier than the other top five yielding cultivars in Trial II, but
its ear characteristics were not optimal. The remaining four cultivars








(Illini Gold, Summer Sweet 7610, GSS 3845, and FMX 77), although a few
days later than XPH 2623, possessed more acceptable ear characteristics.

Although many varieties produced consistent reuslts between the two
trials, some discrepancies are apparent. These inconsistencies may be
attributed to different planting dates, field locations, and cultural
practices. Growers should be mindful of this variability when selecting
a new variety and small "test areas" of new varieties may be advisable.

Seeds were obtained from the following:

AC Abbott & Cobb, P. O. Box 307, Feasterville, PA 19047
AG Agway Seeds, Box 4933, Syracuse, NY 13221
AMSA AMSA Seed Co., P. O. Box 5301, Modesto, CA 95352
AS Asgrow Seed Co., 1811 E. Florida, Nampa, ID 83651
FM Ferry-Morse Seeds, 3015 E. Cornstock, Nampa, ID 83651
HM Harris-Moran Seeds, Moreton Farm, Rochester, NY 14624
IFAS Everglades-REC, P. O. Drawer A, Belle Glade, FL 33430
(E. A. Wolf)
PS Park Seed, Cokesbury Rd., Greenwood, SC 29647
RS Rogers Bros., P. O. Box 80, Idaho FAlls, ID 83402
SS Sun Seeds, P. 0. Box 1438, Hollister, CA 95024
TW Twilley Seed Co., P. O. Box 65, Trevose, PA 19047





Sweet corn, supersweets variety trial I results, Zellwood, FL 1988.


Days to Crates/ Ear (in.)z Tip Husk Kernel Height(ft.)v Plantu
Cultivar Source harvest acre Length Width MaturityY fillx coverw color Plant Ear stand(%)


XPH 2659
Sweet Belle
Summer Sweet 7900
Summer Sweet 7810
XPH 2640

GSS 3321
Sunre 2620
HMX 5383
GSS 3548
XPH 2644

Summer Sweet 7210
34004
85-3158
Sweet Treat
HMX 6348

Landmark
FMX 255
Butterfruit Bicolor
HMX 4379
Sunre 2630

Even Sweeter
Summer Sweet 7200
Pinnacle
GSS 3279
GSS 3845

Butterfruit
Sunex 2577
FMX 271
Summer Sweet 6700
XPH 2623


AS
AS
AC
AC
AS

RB
SS
HM
RS
AS

AC
AMSA
AG
FM
HM

HM
FM
PS
HM
SS


467
463
444
426
413

384
370
368
362
360

357
351
348
346
344

344
336
335
332
330

319
310
305
302
302

301
300
299
298
298


8.2
8.0
7.9
7.5
7.8

7.9
8.4
7.6
7.5
7.8

7.9
8.1
7.2
8.1
7.7

8.3
7.4
8.0
7.6
8.1

7.6
8.0
7.7
7.7
7.9

7.7
7.5
8.1
8.0
8.3


1.8
2.0
2.0
1.8
2.1

1.9
1.9
1.8
1.8
1.9

1.9
1.9
1.8
1.7
1.8

1.8
1.9
2.1
1.9
2.1

1.9
1.8
1.9
1.4
1.9

1.7
1.8
1.8
1.9
1.9


0.00
+0.33
0.00
-0.67
+1.67

+0.67
+0.33
+0.33
-0.33
-0.67

-0.67
0.00
+0.67
+0.67
-0.67

+2.00
-0.33
0.00
0.00
+0.33

0.00
-1.00
0.00
0.00
-0.33

+0.33
+1.00
-1.67
+1.33
+0.33


4.50
5.00
5.00
4.00
4.00

4.17
4.00
4.33
4.67
4.33

3.67
4.33
4.33
4.50
4.00

3.33
3.67
4.00
5.00
4.33

3.67
4.00
4.17
4.33
4.50

3.50
5.00
4.33
4.33
3.83


2.67
4.00
4.33
5.00
3.00

4.67
3.25
4.67
4.00
4.25

5.00
5.00
4.67
4.50
4.00

4.33
3.17
3.33
4.00
2.50

3.33
5.00
5.00
4.00
4.67

3.50
4.33
5.00
3.50
2.50


yellow
yellow
yellow
yellow
bicolor

yellow
yellow
yellow
yellow
bicolor

yellow
yellow
yellow
yellow
yellow

yellow
bicolor
bicolor
yellow
bicolor

bi/white
yellow
yellow
yellow
yellow

yellow
yellow
yellow
yellow
yellow


6.10
5.70
4.60
4.50
5.30

5.90
4.70
5.70
6.10
5.60

5.10
4.90
6.00
4.90
4.80

5.20
4.50
6.20
6.30
5.60

6.40
5.00
4.70
6.80
6.50

4.60
5.30
5.20
4.70
4.85


2.40
2.00
1.60
1.80
1.80

1.80
1.20
1.40
2.20
1.90

1.70
1.40
1.40
1.30
1.00

1.30
1.00
2.40
2.40
1.70

2.00
1.50
1.60
1.80
1.70

1.60
1.60
1.40
0.90
1.10


103.0
90.4
74.0
88.5
71.1

79.8
94.2
72.1
70.2
76.0

93.3
85.6
67.3
82.7
86.5

79.8
76.0
60.6
77.9
69.2

93.3
77.9
77.9
56.7
77.9

76.0
93.3
72.1
76.9
80.8


Table 1.







Table 1. Cont'd.


Days to Crates/ Ear (in.)z Tip Husk Kernel Height(ft.)v Plantu
Cultivar Source harvest acre Length Width MaturityY fill coverw color Plant Ear stand(%)


88:2671
Illini Gold
Zenith
Summer Sweet 8000
Upmost

Candy Store
FMX 263
XPH 2641
Illini Xtra Sweet
Sweet Tooth

Sunex 2626
Summer Sweet 7620
Summer Sweet 7610
Kandy Kiss
Summer Sweet 7602

Summer Sweet 8502
Summer Sweet 7200
Twice-As-Nice
Ultimate
FMX 77

Sunex 2616
Summer Sweet 8701
Summer Sweet 6700
GSS 3749
Sunre 2635

Sweet Season
Summer Sweet 7700
88:2687
Summer Sweet 7802
Summer Sweet 8802


AS
PS
HM
AC
HM

HM
FM
AS
PS
FM

SS
AC
AC
FM
AC

AC
TW
AG
HM
FM

SS
AC
AC
RB
SS

SS
AC
AS
AC
AC


90
83
81
89
81

84
85
83
88
83


295
295
295
295
289

285
283
274
275
277

276
269
261
268
251

255
251
251
248
240

240
239
229
222
221

220
213
208
204
203


7.4
8.0
7.2
7.5
7.3

7.8
8.3
7.6
8.1
8.3

8.0
7.5
7.8
8.2
7.3

8.0
7.9
7.5
7.4
7.6

7.4
7.6
7.8
8.0
8.1

7.7
7.7
7.5
7.5
6.9


1.9
1.7
1.7
2.0
1.7

1.9
1.9
1.9
2.1
1.9

2.0
1.8
1.7
1.9
1.7

1.9
1.8
1.9
1.8
1.8

2.0
1.9
1.8
1.9
1.9

1.9
1.9
1.7
1.9
1.6


+0.67
-0.67
-1.00
+0.33
0.00

-1.33
+1.67
+1.00
+1.33
0.00

+2.33
-1.00
-1.67
+2.00
+1.33

-1.00
+1.00
0.00
-0.33
-0.33

0.00
-0.67
+0.33
0.00
0.00

-0.33
0.00
-1.00
+0.67
0.00


4.00
4.00
4.67
4.50
4.83

4.00
4.83
3.67
4.00
3.00

2.83
4.33
4.00
5.00
3.33

3.17
3.67
4.00
5.00
3.83

4.00
4.33
3.67
4.50
3.33

3.50
4.33
4.00
3.50
4.33


4.00
5.00
5.00
3.33
3.00

2.50
4.67
5.00
3.67
2.67

3.50
5.00
5'. 00
4.33
4.00

4.67
4.33
4.33
4.33
5.00

4.00
4.33
4.00
5.00
4.00

4.33
4.33
4.33
4.33
5.00


yellow
yellow
yellow
yellow
yellow

bicolor
yellow
bicolor
yellow
white

bicolor
yellow
yellow
yellow
bicolor

bicolor
yellow
bicolor
yellow
yellow

bicolor
white
yellow
yellow
bicolor

yellow
yellow
bicolor
bicolor
bicolor


5.50
5.60
5.50
6.10
4.10

5.75
5.00
5.60
5.20
5.50

5.60
5.10
5.20
4.30
5.20

5.00
4.80
5.00
5.30
4.80

5.00
5.00
4.80
5.30
5.70

6.00
5.50
5.50
5.00
5.70


1.80
1.90
1.50
1.70
0.70

2.00
2.10
1.60
1.80
1.50

1.70
1.80
1.70
1.00
1.50

1.50
1.40
1.40
1.50
1.20

1.90
2.00
1.40
1.30
1.60

1.60
2.00
1.80
1.30
2.00


70.2
99.0
82.7
49.0
90.4

81.7
72.1
83.7
67.3
69.2

66.3
77.9
65.4
61.5
72.1

73.1
61.5
84.6
64.4
65.4

45.2
73.1
61.5
59.6
39.4

61.5
49.0
77.9
66.3
55.8





Table 1. Cont'd.


Days to Crates/ 'Ear (in.)z Tip Husk Kernel Height(ft.)v Plantu
Cultivar Source harvest acre Length Width MaturityY fillx cover color Plant Ear. stand(%)

GSS 3376 RB 83 206 8.0 1.9 +1.67 3.67 3.67 yellow 6.60 2.40 69.2
Summer Sweet 8601 AC 83 192 7.7 1.8 -0.67 4.33 4.00 white 6.00 1.60 54.8
Summer Sweet 7400 AC 81 186 7.5 1.8 -1.33 4.00 5.00 yellow 5.90 1.40 56.7
Sunre 2579 SS 88 181 8.3 1.8 -1.67 5.00 3.67 yellow 5.90 1.40 49.0
Summer Sweet 8801 AC 83 172 7.8 1.8 -1.00 4.17 4.33 white 6.00 2.00 36.5

Honey 'N Pearl PS 81 165 7.7 1.9 -0.33 3.67 4.00 bicolor 5.10 1.50 46.2
Summer Sweet 8202 AC 83 134 7.1 1.7 -0.33 4.33 4.33 bicolor 4.80 1.50 46.1
How Sweet It Is PS 88 132 6.9 1.7 -0.33 4.00 2.67 bicolor 5.30 1.70 18.3


zMeasurements taken on husked ears 10 ear/sample.
YMaturity ratings where: 0=optimum maturity, +l=one day past optimum, -l=one day before optimum.
XTip fill where: 0=1" unfilled at tip, 5-full at tip.
wHusk cover where: 1=ear protrudes from husk, 5=ear is tightly wrapped and completely covered.
vStalk and ear heights based on a representative plant from each plot.
uPlant stand where: 26 plants-100% stand.





Table 2.


Sweet corn, supersweets variety trial II


results, Zellwood, FL


1988.
1988.


Days to Crates/ Ear (in.)Z Tip Husk Kernel Height(ft.)v Plantu
Cultivar Source harvest acre Length Width MaturityY fillx cover color Plant Ear stand(%)


XPH 2623
Illini Gold
Summer Sweet 7610
GSS 3845
FMX 77

XPH 2659
Butterfruit
Sunre 2620
Summer Sweet 7210
HMX 5383

Sweet Tooth
GSS 3321
Sweet Belle
Sunex 2577
GSS 3548

Landmark
Florida Staysweet
Summer Sweet 6700
34004
Upmost


Crisp & Sweet
FMX 255
FMX 271
FMX 263
Pinnacle


AS
PS
AC
RS
FM

AS
PS
SS
AC
HM

FM
RS
AS
SS
RS

HM
IFAS
AC
AMSA
HM

IFAS
FM
FM
FM
HM


387
376
359
342
342

304
292
290
288
285

279
278
274
260
258

254
253
250
241
240

233
228
226
220
220

219
216
216
212
210


XPH 2644
Summer Sweet 7620
HMX 6348
Summer Sweet 8202
Even Sweeter


8.3
8.1
7.4
8.0
7.9

8.6
8.4
8.6
7.7
7.3

8.6
7.4
8.1
7.3
7.8

8.0
7.7
8.0
7.3
8.0

7.7
8.0
8.0
7.1
8.0

7.5
7.2
6.6
6.6
7.7


1.9
1.8
1.8
1.8
2.0

1.7
1.9
1.9
1.9
1.6

1.9
1.8
1.8
1.7
1.7

1.7
1.7
1.9
1.7
1.9


1.7
1.9
1.8
1.5
1.7


1.8
1.6
1.6
1.5
1.7


+2.67
+2.33
+2.00
+1.33
+2.33

+1.33
+2.33
+3.33
+0.67
+1.67

0.00
+1.67
+2.00
0.00
+1.00

+2.33
0.00
+2.00
0.00
+2.67

-0.33
+1.00
0.00
0.00
+0.33

+0.67
+1.33
+1.33
+0.33
0.00


2.83
3.00
3.67
4.67
4.00

3.00
3.50
4.00
4.67
2.67

3.83
3.33
3.17
4.33
3.67

2.33
4.33
2.17
5.00
4.00

4.67
3.33
4.50
3.50
4.33

1.83
4.50
2.67
3.67
2.67


3.33
2.67
4.00
4.00
3.67

1.67
3.33
2.33
5.00
3.67

2.33
4.33
3.00
4.67
4.00

3.67
4.33
3.33
5.00
2.67

5.00
4.33
4.67
4.00
4.00

3.67
5.00
3.83
3.67
2.00


yellow
yellow
yellow
yellow
yellow

yellow
yellow
yellow
yellow
yellow

white
yellow
yellow
yellow
yellow

yellow
yellow
yellow
yellow
yellow

yellow
bicolor
yellow
yellow
yellow

bicolor
yellow
yellow
bicolor
white


4.30
5.00
4.60
5.20
3.65

5.30
4.20
4.20
5.10
4.45

4.65
4.80
4.60
4.50
5.35

4.50
5.00
4.10
5.10
3.90

5.00
4.00
4.35
3.55
4.70

5.10
4.70
4.25
5.00
5.05


1.50
1.20
1.60
1.90
0.80

1.90
1.20
1.60
1.70
1.70

1.50
0.85
1.60
1.45
1.40

1.35
2.30
1.10
2.00
0.80

1.70
1.45
1.40
1.65
1.35

2.00
1.90
1.40
1.80
2.15


93.8
89.6
68.8
64.6
54.2

79.2
83.3
81.3
85.4
66.7

75.0
72.9
81.3
75.0
83.3

72.9
62.5
93.8
62.5
87.5

75.0
66.7
62.5
66.7
70.8

62.5
79.2
81.3
68.8
45.8






Table 2.


Cont'd.


Days to Crates/ Ear (in.)z Tip Husk Kernel Height(ft.)v Plantu
Cultivar Source harvest acre Length Width MaturityY fillx cover color Plant Ear stand(%)


Summer Sweet 7700
Summer Sweet 7200
Summer Sweet 7810
Summer Sweet 7200
GSS 3279

HMX 4379
Summer Sweet 7802
Twice-As-Nice
Sunex 2626
Butterfruit Bicolor

Sunre 2630
85-3158
Summer Sweet 8802
Summer Sweet 7900
Summer Sweet 8601

XPH 2641
Ultimate
Summer Sweet 7400
Summer Sweet 8502
Candy Store

Sweet Treat
Sunre 2635
88:2687
Zenith
XPH 2640

Sunre 2579
88:2671
Honey 'N Pearl
Sweet Season
Summer Sweet 6700


AC
AC
AC
TW
RS

HM
AC
AG
SS
PS

SS
AG
AC
AC
AC

AS
HM
AC
AC
HM

FM
SS
AS
HM
AS

SS
AS
PS
SS
TW


74
70
74
70
74

74
74
70
74
74

74
74
74
74
74

70
74
70
70
70

70
74
70
70
70

74
74
70
74
70


205
205
203
201
196

195
191
191
191
190

190
188
188
188
187

184
182
181
179
175

174
173
157
156
156

152
149
146
143
142


7.0
7.5
7.0
7.9
7.0

6.3
7.1
6.9
8.0
6.6

6.7
6.6
8.1
7.7
6.5

7.3
6.8
6.0
7.7
8.3

8.4
8.1
7.3
7.0
7.6

8.6
7.1
8.0
7.9
7.9


1.5
1.7
1.5
1.8
1.5

1.4
1.8
1.6
1.8
1.6

1.7
1.6
1.8
1.6
1.6

1.7
1.6
1.4
1.7
1.7

1.8
1.8
1.6
1.5
1.8

1.7
1.7
1.8
1.7
1.7


+0.33
0.00
-0.33
-0.33
+2.00

-0.33
+1.67
-0.67
+0.67
+1.00

+2.00
+2.00
+0.67
-0.67
-0.33

+0.33
+1.33
0.00
-2.33
-0.33

+2.00
+2.67
-0.67
-0.67
0.00

-1.00
+1.67
0.00
+0.67
+2.33


4.00
4.67
3.00
5.00
4.67

4.00
2.83
4.00
2.67
3.00

3.00
3.00
3.33
2.33
3.67

3.50
3.00
5.00
4.00
3.33

3.67
2.33
4.67
4.33
4.17

3.67
3.67
4.17
2.00
2.83


3.00
4.67
3.67
5.00
3.00

4.67
3.33
4.67
3.00
1.00

1.00
3.67
4.00
3.67
3.00

4.17
4.33
4.33
3.67
2.33

4.33
3.00
4.67
4.33
3.33

2.33
3.67
3.67
3.67
3.33


yellow
yellow
yellow
yellow
yellow

yellow
bicolor
bicolor
yellow
bicolor

bicolor
yellow
bicolor
yellow
white

bicolor
yellow
yellow
bicolor
bicolor

yellow
bicolor
bicolor
yellow
bicolor

yellow
yellow
bicolor
yellow
yellow


Is


5.30
4.20
4.65
4.75
5.40

5.00
4.80
5.05
4.80
5.00

5.60
4.75
5.20
4.70
4.90

4.90
4.40
5.00
4.90
5.10

4.20
4.50
4.40
5.00
4.40

5.90
4.65
4.80
5.60
3.10


2.10
1.40
1.80
1.60
2.00

2.10
1.30
1.65
1.50
1.40

2.40
1.75
1.90
1.70
1.60

1.60
1.90
0.80
1.80
1.55

1.40
2.25
1.60
1.75
1.10

2.40
1.10
1.00
2.00
0.80


68.8
62.5
58.3
60.4
77.1

66.7
58.3
64.6
62.5
56.3

66.7
89.6
52.1
66.7
54.2

79.2
52.1
58.3
64.6
60.4

66.7
54.2
79.2
72.9
66.7

60.4
47.9
47.9
60.4
39.6





Table 2.


Days to Crates/ Ear (in.)z Tip Husk Kernel Height(ft.)v Plantu
Cultivar Source harvest acre Length Width MaturityY fillx cover color Plant Ear stand(%)


Summer Sweet 8000 AC 74 139 6.4 1.4 0.00 3.50 3.67 yellow 5.35 1.85 54.2
Summer Sweet 8701 AC 71 128 7.2 1.8 -0.67 3.33 3.50 white 4.70 1.60 50.0
Kandy Kiss FM 70 128 8.2 1.7 +1.00 3.33 4.00 yellow 3.80 0.90 47.9
Illini Xtra Sweet PS 73 126 7.8 1.6 +1.00 3.33 2.33 yellow 4.90 2.00 58.3
GSS 3749 RS 74 123 8.2 1.7 +1.00 3.67 4.00 yellow 4.00 0.90 50.0

How Sweet It Is PS 73 122 7.1 1.6 -0.33 3.00 2.00 bicolor 5.40 1.90 54.2
Summer Sweet 7602 AC 73 118 7.8 1.7 +0.67 3.33 3.33 bicolor 4.70 1.20 45.8
GSS 3376 RS 74 103 8.7 1.7 +0.33 2.67 2.33 yellow 5.15 1.60 37.5
Summer Sweet 8801 AC 74 85 7.8 1.8 +1.00 3.00 2.67 white 5.15 1.40 20.8
Sunex 2616 SS 74 76 7.4 1.6 -0.33 3.00 3.00 yellow 5.00 1.65 18.8


zMeasurements taken on husked ears


- 10 ear/sample.


YMaturity ratings where: 0=optimum maturity, +l=one day past optimum, -l=one day before optimum.
XTip fill where: 0=1" unfilled at tip, 5-full at tip.
Husk cover where: 1=ear protrudes from husk, 5=ear is tightly wrapped and completely covered.
VStalk and ear heights based on a representative plant from each plot.
uPlant stand where: 16 plants-100% stand.


Cont'd.











Table 3. Temperature and rainfall at CFREC-Sanford (30 miles east of
Zellwood) during the spring 1988 sweet corn season (March 11 -
June 28, 1988).

Daily temp. (OF)
Month (date) Max. Min. Rainfall (in.)


March 11-31 (I)z 82 40 2.00

April 1-30 (I) 90 44 2.47
14-30 (II) 90 48 2.00

May 1-31 (I & II) 91 52 5.11

June 1-10 (I) 92 59 3.81
1-28 (II) 92 59 8.36

Total (I) 13.39
(II) 15.47

ZTrial I-(I), Trial II-(II).




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