Title: Horticultural trials with sweet corn hybrids.
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 Material Information
Title: Horticultural trials with sweet corn hybrids.
Physical Description: Serial
Language: English
Creator: Guzman, V. L.
Publisher: Everglades Research Station, University of Florida
Place of Publication: Belle Glade, Fla.
Publication Date: February 13, 1961
 Record Information
Bibliographic ID: UF00076912
Volume ID: VID00003
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.

Full Text




Everglades Station Mimeo Report 61-9


HORTICULTURAL TRIALS WITH SWEET CORN HYBRIDS

V. L. Guzman


TI. Hybrid Yellow and White Sweet Corn Variety Trials.

Three types of tests were conducted: 1. observational, 2. replicated
and 3. commercial. The observational trial or screening stage serves to
eliminate those varieties which offer no possibility for the fresh market.
The most promising lines of the observational trials are elevated to the
replicated trials for further study. In these, the varieties are compared
in replicated plots, and a reliable measure of their possibilities is treated
statistically. The outstanding varieties from the replicated trials are
elevated once more to the commercial trials. The commercial trials are
conducted in large single plots, capable of being handled with the grower's
commercial equipment. Wherever possible, plantings are made at different
farms and seasons to ascertain grower, inspector and general market accept-
ance to each variety. These trials are complimented by quality studies
using the best varieties by R. K. Showalter, Horticulturist, Department of
Food Technology, University of Florida, Gainesville, Florida.

Location, planting and harvest dates.

Horticulture experiment 422 Fall commercial yellow sweet corn trial -
was planted September 8-9, 1959 at S. N. Knight farm, Belle Glade, and har-
vested November 9, 1959.

Horticulture experiment 423 faU1 yellow sweet corn replicated trial -
was planted September 14 for the late varieties, and September 15 and 16
for the mid and early season vaeietee reeBMctively at S. N. Knight farm,
Belle Glade, and harvested November 18, 1959.

Horticulture experiment 435 Spring yellow sweet corn observational
trials was planted at Duda and Sons farm, field SR. No. 1, Belle Glade,
February 17, 1960 and harvested May 5-14, 1960.

Horticulture experiment 436 Spring yellow sweet corn replicated trials -
was planted at Duda and Sons farm, field SR. No. 1, Belle Glade, February 19
and harvested May 12-14, 1960.

Horticulture experiment 420 Spring white sweet corn replicate
was seeded February 1, 1960 at Duda and Sons farm, Field SR. No. 4 e l.
and harvested May 5-10, 1960.

Horticulture experiment 421 Spring white sweet observation corn ~' als e
was planted at Duda and Sons farm, field Sr. No. 2, February 1 a ted
May 5-10, 1960.

Horticulture experiment 437 Spring yellow sweet corn commerce ia
was planted February 9-10 at Wedgeworth farm, No. 3, field 6E, Belle Gla .and
harvested May 10-12, 1960.


SAssociate Horticulturist, Everglades Experiment Station, Belle Glade, Florida.


February 13, 1961








Field plot technique

Plots were single rows 55 feet in length, planted in hills 10 inches
apart. When the plants were 6-8 inches in height, they were thinned to
one plant per hill by cutting out extra plants at ground level. Only 50
feet of each row were harvested for yields. In the observational trials,
single unreplicated rows were used. In the replicated experiments, ran-
domized blocks with four replications were employed. Row width varied
with the grower from 34 inches on the Duda and Wedgworth farms to 36 inches
on the Knight farm.

In the commercial trials unreplicated strips of 16 rows 1/2 mile long
were employed.

Fertility conditions.

The residual fertility and pH of the soil varied from farm to farm.
Soil samples were taken and fertilizer was applied slightly above the re-
commended rates. In most cases the fertilizer was banded at planting time.
On one farm the fertilizer was broadcast in excess of that recommended.

Control of weeds, diseases and insects.

Weeds were controlled by mechanical cultivation except in experiment 423,
where 4 pounds per acre of Vegadex was used as pre-emergence application and
in experiment 437, where 4 pounds of Randox was used also as pre-emergence
applied by the weed control section.

The control of diseases and insects was done by the grower cooperator
as routine practice. In general, blight was controlled by the use of 2
quarts of nabem plus 3/4 pound of zinc sulfate or by the use of 2 pounds
of Manzate per 100 gallons of water. The corn stem weevil was controlled
by the use of 1 gallon of 25% emulsifiable DDT or 2 pounds of the actual
toxicant per 100 gallons of water and in some cases by the use of four
pounds of 40% toxaphene and 1-2 pounds of 15% parathion in 100 gallons.
Similar formulations were used for the control of budworm. For the control
of corn earworm 10% DDT and 2% parathion dust were employed.

Special conditions.

During the fall season, temperatures were high and heavy rains fell.
The spring corn season was relatively dry and temperatures were below normal.
The low temperatures during the early part of the season were not favorable
for rapid growth, and on several occasions the plants were slightly damaged
by frost. However, the low temperatures and lack of heavy rains decreased
the incidence of blight, in particular for the early spring harvest, which
was reflected in heavy yields and good quality of the corn.

Results and discussion

Tables 1 to 8 present tabulated data on the performance of the varieties in
these tests.







-3-


After studying each variety for blight resistance, ear appearance and
other characteristics indicated in each table, it is concluded that among
the varieties of the observational trials there is none that appeared to
be outstanding. Best lines in the observational trials were: 17-C80a,
18c85a, 21-C90a, 22-C99a, 36-Seneca M10, 39-Cr. 702-27, 40-Cr. 763-9,
42-XP-204, 43-6255, 44-6256, 50-58-11, 51-58-12, 54-Du189, 56-R66, 68-R81
(Table 3), 9-R804, and 15-R-802 (Table 7).

In the fall replicated and commercial trials the performance of the
same varieties in the two tests were quite different, even though they were
planted in adjacent fields, with apparently the same environment and sim-
ilar cultural methods. Yields of the commercial trials were low, because
most of the ears grew out of the shuck and thus were culled out. Ears of
Golden Security did not grow out of the shucks and was the highest yielder
with 153 boxes to the acre, a low yield, but superior to the other varie-
ties. In the replicated trials, yields of most varieties did not differ
significantly and were as high as expected for the rainy and hot conditions
prevailing. There is no explanation for the large number of ears growing
out of the shucks in the commercial trials.

In the spring replicated trials, Golden Security, the check, out-
yielded all the varieties, showing once more the remarkable response of
this variety when leaf blight is practically absent. Poor germination
of Honeycross variety was reflected in low yields.

Most of the varieties in the spring commercial trials gave high yields;
this is in part due to close spacing in the row (8-10 inches) and good stand.
This was accomplished by heavy seeding, from 18 to 28 pounds (the last fig-
ure is for Sixtypak) and carefully supervised thinning. It should be pointed
out that variety R-8B produced a large number of culls due to excessive
growing out of the shucks, and that 680-35 was too variable in ear size
and maturity.

Among the white sweet corn varieties, Cr. 770-2, R-697 and R-52474
were inferior in yields. However, R-52474 was outstanding for appearance
and quality, although its susceptibility to leaf blight was higher than
during the past season. All varieties except 52474 showed some dieback.
Silverliner, the check, presented severe dieback and in less degree,
hybrid 31, R-62683 (Silverbelle) and Cr. 770-1.

Hybrids R-901 and R-802 will be elevated to the replicated trials.


Key for Hybrid Sweet Corn Tables

Source of seed: Name of company or individual supplying the seed: ASG -
Asgrow Seed Company, Milford, Conn.; A & C Abbott & Cobb Seed Co.,
Philadelphia, Pa.; Bur. W. Atlee Burpee Co., Philadelphia 32, Pa.; Cor. -
Corneli Seed Co., St. Louis 2, Mo.; Cro. Crookham Company, Caldwell, Idaho;
EES. Everglades Experiment Station (Wolf), Belle Glade, Florida; F.M. -
Ferry Morse Seed Co., Detroit, Michigan and Salinas, California; J. H. -
Joseph Harris Seed Co., Rochester, N.Y.; Rob Robson Seed Farms, Hall,
N.Y.; Rog Rogers Bros. Seed Co., Caldwell, Idaho. Vaughn Vaughn Seed
Co., Chicago, Illinois; M.L. Michael Leonard Seed Co., Ames, Iowa.






-4-

Plant height: Mean plant height in feet to nearest 1/4 ft. of 10 consecutive
plants per plot.

No. Plants harvested: Number of plants harvested after blocking off plots
to 50 feet in length.

No. Marketable ears per plant: Total U. S. Fancy and U. S. #1 ears
No. of plants

Flag length: This was obtained by measuring in inches the smallest well dif-
ferentiated flag and the longest.

Flag and husk color: Based on intensity of green color, D Dark green; M-D -
medium to dark green; M medium green; L-M light to medium green; L -
Light Green.

Ear length (inches): Mean ear length of 10 randomly selected marketable ears
from each plot.

Ear diameter (cm): Mean ear diameter, measured midway between butt and tip
of ear of 10 randomly selected marketable ears per plot.

Mean unfilled tip (inches): Mean length of unfilled tip of 10 randomly
selected marketable ears per plot. In the case of unhusked ears the signs
+ or indicate whether the tip cover over the ear was more or less than
one inch.

No. rows (majority): No. rows per ear on 10 randomly selected ears per plot
and reported as a majority range: i.e. 14-18, at least 30 percent of the
total ears looked at had 14 rows and at least 30 percent had 18 rows.

Number of ears: Total number of ears harvested mostly of U. S. Fancy and
U. S. #1.

Yield crates/A: This was estimated from the number of marketable ears con-
sidering 5 doz. ear boxes.

Blight Reading: Helminthosporium turcicum leaf blight rating on unsprayed
plots planted February 18, 1960. 0 no blight, 5 very severe. (E. A. Wolf.)

Days to maturity: Number of days from planting until estimated optimum
maturity for fresh market purposes.









Table 1. Exp. 423.


Yellow Sweet Corn Hybrid Replicated Trial conducted on the farm of
Belle Glade. Fall, 1959. Harvested November 18, 1959.


S. N. Knight


St *a
| B < -

S 4) *r 1 > -- 4 *
-o i8- F 4 O o 14- 2 0 *- O
n o 0 6- 1 1 r 3 0 *c d 1 0
o o O 4 o 4 a t a0
S0 o-- 11.4) 041 4} pd -- c0






1. Goldcup* J.H. 1 1
2. G17(G365)CFGS J.H. 7.5 4.2 7.7 L-M F 1.1 14-16 239 220 .92 266 66 133
3. R-8C Rog. 8.0 4.1 8.7 M-D F 0.2 14-16 206 199 .97 241 65 126
4. t-8E Rog. 8.1 4.2 8.3 M-D F 0.3 14-16 210 198 .94 240 64 129
5. 85-1 (Winter Garden) Cro. 7.6 4.3 6.3 M-D F 1.3 14-18 191 163 .85 197 65 103
6. Iobelle ASg. 7.8 4.2 8.7 M F 0.5 14-16 191 176 .92 213 66 107
S680-35 ro. 73 4.7 7 M-D 03 14-18 215 217 101 263 65 1
8. 107 F.M. 7.3 4.2 10.3 D PF 09 14-16 204 207 1.02 251 64 123
9. Florigold F.M. 7.3 4.2 9.3 M F 0.4 14-16 i99 177 .89 214 66 105
10. R-8 Rog. 7.4 4.1 10.0 M-D F 0.2 14-16 210 202 .96 244 65 116
11. Sixtypak Asg. 6.9 4.2 6.8 M-D G 0.1 12-14 217 190 .88 230 64 108
12. Golden Security Asg. .7.6 4.0 9.0 D G 0.6 16 236 190 .81 230 64 107
LSD .05 0.40 0.13 10.21 24 29 12
LSD .01 53 0.17 0.29 33 40 17
This variety was complete destroyed by raccoons, apparently due to its earliness and high sugar content.
5. 85-1 (Winter Garden) Crs. 7.6 4.3 6.3 M-D F 0.3 l4-l8 191 163 .85 197 65 103










* This variety was completely destroyed by raccoons, apparently due to its earliness and high sugar content.















Table 2. Exp. 422.


Yellow Sweet Corn Hybrid Commercial Trial, grown on the farm of S. N. Knight,
Belle Glade. Grown under heavy rainfall, fall 1959.


'ci
0



0V
I4
0,
0,
C)
0,


1. Florigold* F. M. 87
2. 85-1 (Winter Garden)* Cro. 78
3. Sixtypak* Asg. 93
4. 107* F.M. 84
5. Iobelle* Asg. 68
6. 680-35* Cro. 42
7. Golden Security Asg. 153



* More than 50~ of the ears were culled out.


.-I -I


*
4,
C,
0)

I


Remarks






Table 3. Exp. No. 36.


Observational
Belle Glade.


trials of yellow hybrid sweet corn conducted at A.
spring 1960. Harvested May 9-14, 1960.


Duda and Sons Farm,


S | unhusked ___
4) 5S4^ -' /---------- 1---------
S .d 4.' H 1

o
A8 W4 A k

Ace. No. and Variety 0 04


16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.


C78a*
c80a*
c85a
C85c
c85D
C90a
C99a
C77a
Exp. 6
Exp. 3
Evertender
Valleygold
Golden Regent
Staygold
Golden Market
Floriglade


Golden
Golden
Seneca
Seneca
Seneca
Golden
Golden
702-27
769-9
665-27
XF 204


Sensation
Serlion
Chief
Brave A
MIO
Hybrid 18
Hybrid 19


43. Exp. 6255
44. Exp. 6256


E.E.S.
E.E.S.
I!





Vaughn
1I

it
It
it
11
ML.


1t
"I

"t

Rob.
"1
I"
A&C

Cro.
It
I"
Asg.
F.M.
I"


1.0
0.5
0.5
0.5
1.5
2.5
0.5
1.0
4.5
4.5
4.5
4.0
4.0
4.0
2.5
5.0
5.0
4.5
4.0
4.0
1.5
3.0
4.0
2.0
1.5
3.5
4.0
3.5
1.0


35
80
64
58
57
52
59
55
55
54
56
68
77
46
54
60
64
59
57
64
50
72
68
67
58
62
49
48


.94
.73
.41
.88
1.74
1.92
1.36
1.02
.20
.85
.89
.63
.73
.83
.83
1.03
1.08
1.00
.74
.91
.92
.90
1.01
.90
1.33
1.00
.88
1.00


5-12
5-11
4-11
3-7
4-8
5-10
6-14
4-7
8-18
9-15
4-12
6-12
5-9
4-9
5-11
5-15
4-8
5-10
6-10o
7-14
5-12
4-9
6-11
4-11
0-9
5-8
5-13
5-9
4-14


D.G.
D.G.
D.G.
M-D
D.G.
D.G.
D.G.
D.G.
D.G.
D.G.
D.G.
M.D.
D.G.
D.G.
D.G.
D.G.
M.D.
D.G.
D.G.
D.G.
D.G.
D.G.
D.G.
D.G.
M
D.G.
D.G.
D.G.
D.G.


11.0
9.5
10.0
11.0
11.5
10.5
10.5
10.5
10.0
11.5
10.5
11.5
11.0
10.5
11.5
11.5
9.0
11.0
10.5
10.5
9.5
11.5
11.5
10.5
11.5
10.0
11.0
10.5


5.6
4.6
5.2
5.2
4.8
5.0
5.2
5.0
5.0
5.2
5.0
5.8
5.2
4.8
5.0
4.8
4.8
4.6
5.2
5.4
5.6
5.2
5.4
4.0
5.3
4.8
5.2
5.2


1++
1-

1-'
1--
1--
1++
1+
1+
1
1
1+
1-+
1+
1-
1+
1++
1-

1+
1-
1-
1++
1+
1+
1
1-
1+
1





Table 3. Contd. .

Husked o 8
^P^fl In I 0II
o) 0; Ar 0 0L P


0H 0d 0 *4 n O '



17. c80s 0.7 7.0 4.6 16-18 33 2.50 6.7 192 F D 87
18. c85a 0.5 7.2 4.2 1 58 31. 6.5 297 F M 86
19. C85e 1.0 7.5 4.5 16 26 15.8 6.8 133 P M 87
20. c85D 1.2 7.5 4.2 12-14 51 31.0 6.7 261 P M-D 87
21. cg9a 0.2 7.0 3.9 14 99 52.0 7.4 507 F 85
22. C99a 1.0 7.5 4.1 12-16 119 71.0 7.5 609 F -D 86
23. C77a 1.0 7.2 4.5 14-18 80 50.0 6.6 410 F 86
24. Exp. 6 1.0 7.0 4.1 16 56 29.0 7.4 287 F M-D 87
25. Exp. 3 0.6 7.8 3.9 12-16 11 6.5 7.5 56 F M 86
26. Evertender 1.2 7.8 4.4 14-16 46 31.0 6.6 236 P M-D 85
27. Valleygold 1.0 7.8 3.8 12-14 50 23.5 6.7 256 F L-M 84
28. Golden Regent 1.0 8.0 4.9 18 43 34.5 7.7 220 P M 86
29. Staygold 0.8 7.8 4.3 16 56 37.0 7.5 287 F M 86
30. Golden Market 0.5 8.0 3.9 12-14 38 21.0 7.2 195 G Mq 87
31. Floriglade 1.5 8.2 4.1 16 45 27.0 7.2 230 G L-M 85
32. Golden Sensation 1.2 7.5 4.2 12 62 30.0 7.7 317 F L-M. 85
33. Golden Serlion 1.5 7.2 4.3 16 69 35.0 5.8 353 P L-M 85
34. Seneca Chief 0.2 7.0 3.9 12 59 29.0 6.2 302 F M 83
35. Seneca Brave A 0.3 7.5 4.4 16 42 26.0 7.0 215 G M 85
36. Seneca MIO 0.5 7.8 4.4 12-14 58 40.5 6.0 297 F M-D 80
37. Golden Hybrid 18 0.2 7.5 5.6 16-18 16 36.5 7.1 236 P L-M 85
38. Golden Hybrid 19 0.5 7.5 4.3 12 65 43.5 6.4 333 F M 86
39. 702-2 1.5 7.8 4.4 12 69 44.5 5.2 353 F M-D 80
40. 769-9 1.0 7.0 4.3 14 60 43.5 5.9 307 F M-D 80
41. 665-27 0.2 7.2 4.3 12-16 77 49.5 7.0 394 F L-M 84
42. AP 204 0.8 7.8 3.9 14-16 62 34.5 7.6 317 F M-D 87
43. Ecp. 6255 0.3 7.5 4.3 12-14 43 28.0 6.4 220 F D 85
44. Exc. 6256 0.2 7.5 4.5 14 48 31.5 6.4 251 F D 85







Table 3. Contd.

g I_ _. VUnhusked




45. Delmar Bur. 4.0 34 .68 5-12 D.G. 11.0 5.6 1
I- P,


Acc. No. and- Vriety h -4

45. Delmar Bur. 4.0 34 .68 5-12 D.G. 11.0 5.6 1
46. B-67 Rog. 4.5 45 1.36 6-15 D.G. 11.5 4.6 1++
47. KV57-83 lot 1 Cor. 4.5 70 .87 5-12 D.G. 10.5 5.2 1+
48. KF57-83 lot 3 Cor. 4.5 54 .63 6-11 D.G. 10.5 5.0 1+
49. KVF57-83B lot 6 Cor. 4.5 43 158 5-11 M.D. 11.0 5.6 1
50. KVF58-11 Cor. 2.0 43 1.12 5-11 D.G. 11.0 5.0 1-
51. KVF58-12 Cor. 3.5 42 .79 4-10 D.G. 10.5 5.0 1--
52. Tempo Cor. 4.5 48 .81 5-18 D.G. 11.0 5.2 1
53. Cold Eagle J.H. 4.5 54 .93 4-7 D.G. 11.5 5.2 1
54. Exp. D1189 J.H. 1.0 51 .88 4-9 D.G. 11.5 5.1 1
55. Ep. D1179 J.H. 3.0 53 .94 5-9 D.G. 11.5 5.2 1+
56. R-66 Rog. 2.5 48 1.15 5-11 D.G. 11.0 5.2 1+
57. R-70 Rog. 3.0 43 .91 5-11 D.G. 11.0 5.2 1
58. R-71 Rog. 4.0 61 1.08 3-9 D.G. 11.0 5.3 1+
59. R-72 Rog. 3.5 48 1.08 6-11 D.G. 11.0 5.4 1+
60. R-73 Rog. 3.5 49 1.12 4-8 D.G. 11.0 4.7 1++
61. R-74 Rog. 4.0 56 1.05 6-10 D.G. 11.0 4.6 1-
62. R-75 Rog. 4.5 49 1.10 5-12 D.G. 10.5 5.4 1--
63. R-76 Rog. 4.5 48 1.08 4-11 D.G. 10.0 5.2 1--
64. R-77 Rog. 4.0 50 1.74 5-14 D.G. 11.0 4.6 1+
65. R-78 Rog. 4.0 51 .78 5-12 D.G. 11.0 5.2 1
66. R-79 Rog. 3.5 41 1.29 5-15 D.G. 11.5 5.2 1+
67. R-80 Rog. 4.0 46 .78 4-8 D.G. 11.5 5.6 1+
68. R-81 Rog. 1.5 40 1.08 4-9 D.G. 11.0 5.2 1
69. R-82 Rog. 4.5 44 1.14 5-16 D.G. 11.5 5.0 1+
70. R-83 Rog. 2.5 42 1.45 5-12 D.G. 11.5 5.0 1+
86. Surecrop J.H. 5.0 50 1.50 7-14 D.G. 11.0 5.2 1+
Golden S. Asg. 4.5 64 1.3 D.G. 10.9 5.1 1+






Table 3. Conr'd.


0 d
Husked *c a a


Ace. o. and Variety -P

5 Delmar 4.6 12 3 15. .7 151 F M 8


47. KF57-83 lot 1 .3 6.5 4.2 12-14 61 36.5 6.6 355 86
Acc. No. and Variety +> 9% ----A E-------

45. Delmar 0.2 7.0 4.6 12 23 15.0 6.7 151 F M 84
46. R-67 0.3 7.8 4.2 12 61 37.0 6.3 364 F M-D 85
47. KVF57-83 lot 1 0.3 6.5 4.2 12-14 61 36.5 6.6 355 P D 86
48. KVF57-83 lot 3 0.2 6.5 4.3 12 34 18.0 6.8 193 P M 86
49. KVF57-83B lot 6 1.0 6.9 4.5 12-14 68 41.0 7.6 387 P L-M 85
50. KVF58-11 0.6 7.8 4.2 14-16 48 28.0 7.5 273 F D 85
51. KVF58-12 0.4 7.5 4.2 12-14 33 19.5 6.3 206 G D 86
52. Tempo 0.2 7.5 4.0 14 39 25.5 7.9 227 G D 85
53. Gold Eagle 0.3 7.5 4.5 14 50 35.0 6.6 298 F M 84
54. Exp. D1189 0.2 8.0 4.2 14 45 32.0 7.1 262 G D 85
55. Exp. D1179 0.2 7.2 4.4 14-16 50 33.5 6.7 313 F M-D 85
56. -66 0.5 7.8 4.4 14 55 35.5 6.8 353 F M-D 86
57. R-70 0.8 7.8 4.3 14 39 24.5 6.9 244 F D 85
58. R-71 0.1 7.5 4.4 12 66 37.5 7.5 360 F M 84
59. R-72 0.3 7.5 4.6 14 52 35.5 7.3 296 F D 84
60. R-73 0.2 7.8 4.1 12 55 30.5 6.4 313 F M 84
61. R-74 1.5 8.0 3.9 14 59 39.0 8.0 322 F D 85
62. R-75 0.5 7.2 4.0 16 54 34.0 6.8 294 F D 85
63. R-76 1.5 7.8 4.3 52 30.0 7.4 303 F D 85
64. R-77 0.2 8.0 3.8 12-14 87 44.5 6.9 519 F D 84
65. R-78 0.3 7.8 4.4 12-14 40 32.0 7.6 233 F M 84
66. R-79 0.5 7.5 4.3 12-16 53 25.5 .8 367 F D 85
67. R-80 0.7 7.5 4.4 14 36 25.5 6.3 210 F M 85
68. R-81 0.2 7.5 4.4 12 43 29.0 6.7 276 F M 84
69. R-82 0.7 7.5 4.3 12-14 50 31.5 6.6 285 F M 84
70. R-83 1.0 7.5 4.5 16 61 39.0 7.0 347 F D 85
86. Surecrop 0.2 7.5 4.2 6 5 49.0 8.1 427 G M-D 86
Golden S. 0.8 7.5 4.2 6 1 51.0 10.9 414 G M-D 86
roor Ge"-~r:nation.








Table 4. Exp. No. 435.


Late Yellow
Sons, Belle


Sweet Corn Hybrid Replicated Trial. Grown on the Farm of A. Duda and
Glade. Harvested May 11, 1960.


H 4c S 4 4)-"'
A rd F4 k 14 03 p
P k i 0 I ON 0 0 s A* 94 t
d a i o 4 ai o
0 ;4
4) *6 a rd I ra *M
Ac. Number a A
5 3 <- 4 i are (D 0 0 4 D 4> R 0
g -H a) r-i E W ::) .4 13


and Variety ___ - -- -


Goldcup
Seneca Brave
R8
R-8B
R-8C
R-8E
Honeycross
680-35
lobelle
85-1(Winter Garden)
107
Florigold
Sixtypak
Golden S.


LSD .05
LSD .01


i.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.


J.H.
Rob.
Rog.
Rog.
Rog.
Rog.
Bur.
Cro.
Asg.
Cro.
F.M.
F.M.
Asg.
Asg.


7.0
7.6
6.7
7.5
7.3
7.1
8.3
7.6
7.2
6.8
7.4
6.1
7.6
7.8


3.0
3.5
2.5
2.5
2.5
2.5
4.0
2.5
3.0
3.0
2.0
2.5
3.5
4.5


10.6
10.5
11.0
11.1
11.4
11.4
10.4
10.4
10.8
10.4
10.9
11.2
11.1
10.9

0.46
0.62


5.2
5.2
5.0
5.4
5.3
5.2
5.1
5.3
5.2
5.5
5.2
5.0
5.1
5.1

0.18
0.24


M
M
M
M
M
M
M
L-M
L-M
M
M
D
D
M-D


7.6
7.4
8.4
8.5
9.1
8.8
7.7
8.2
8.1
8.0
7.7
8.4
7.7
7.5

0.22
0.30


4.1
4.3
3.9
4.1
4.0
4.0
4.3
4.5
4.2
4.4
4.1
4.2
4.1
4.2

0.12
0.16


14-16
14
14-16
14-16
14-16
14-16
14-16
14-18
14-16
14-18
14-16
14-16
12-14
16


244
209
194
218
223
219
118
216
200
250
249
249
237
258


1.22
.42
1.00
1.37
1.27
.95
.47
1.11
.95
.50
.20
.87
.27
.83

0.36
0.48


0.96
1.23
0.96
0.89
0.88
0.86
0.87
0.89
0.98
1.00
0.93
0.90
0.98
1.26


234
258
187
194
197
188
103
193
195
250
232
225
233
324

36.7
49.2


34.1
40.0
28.1
32.5
32.9
31.3
17.3
34.1
32.3
43.5
36.4
34.8
33.4
50.6

5.37
7.19


300
330
239
248
252
240
131
247
249
320
'296
288
298
414

47
63











Yellow Hybrid Sweet corn Commercial Trial. Grown on Wedgworth farm,


Belle Glade.


Harvested May 10-12, 1960.


No. and Variety


a


00



kH
*-i
P f-t


u\




Is
0 4)
-P

54


0a
e
0


@(

$P4
0)
p


No and ---4 *t


lobelle
680-35
Florigold
R-8

R-8B
85-1 (Winter Garden)
Golden Security
107
Sixtypak


845
1035
690
911

689
843
921
771
830


338
414
276
364

276
337
368
308
332


43.0
41.6
43.0
38.5

40.4
43.0
41.7
42.0
40.0


0
+


Pale shuck color
No uniformity
Satisfactory
A little bit small
ear in daimeter
Too large ears
Satisfactory
Satisfactory
Satisfactory
Satisfactory


Table 5. Exp. No. 437.


........ VI











Table 6. Exp. No. 420.


White Sweet
Sons, Belle


Corn Hybrid Replicated Trial. Grown on the
Glade. Harvested May 5-10, 1960.


farm of A. Duda and


*4-2
ao 4 rr d o

4k 4Pc)> > 4c8 10 -P-PH
4) 0o 3 -^ hA. 1 i-. o P1 .4) a 4)
4) 4 0 S M ; 0 ( ( ( C
) Hd P 4 t) 'd 0 0B 4)4 4 +1B
ao 4 o aPo 4 0 M4E rVO Up fl13k c ap
0 4-3' M C- ** P 4 '>
oa t o to -H o o1 0e o s 0 H

Number and Variety I 0


Silverliner (CK)
Hybrid 31
Cr. 770-2 silver
R-62683(Silver Belle)
R-697
R-603
R-52474
Cr. 770-1


ISD .05
LSD .01


Cor.
A&C
Cro.
Rog.
Rog.
Rog.
Rog.
Cro.


6.0
7.3
6.8
7.1
6.8
6.2
7.1
7.0

0.23
0.31


10.2
10.6
10.3
11.4
11.3
10.8
10.6
11.0

0.57
0.77


5.1
5.6
4.8
5.5
5.6
5.4
5.4
5.4

0.33
0.45


D
M-D
D
D
D
D
D
D


7.3
7.2
7.6
7.9
7.9
8.1
7.8
7.5

0.28
0.38


3.5
4.0
4.0
3.0
2.5
3.0
4.0
1.5


4.4
5.0
4.1
4.5
4.5
4.6
4.5
4.7

0.36
0.44


12
16
12
16
16-18
16-18
14-16
16


.94
.53
.53
.62
.83
.81
.13
.78

0.22
0.29


255
238
198
226
211

203
254


.91
1.01
.90
1.04
.94

.97
1.02


233
241
178
235
199
229
197
260

20.2
27.5


37.8
49.7
27.8
50.0
41.4
43.6
35.0
46.6

5.5
7.5


298
309
228
301
255
293
252
333

26
35


5-79
7.63
4.26
7.69
6.35
6.70
5.36
7.15

0.84
1.15










Table 7. ESp. No. 420. Observational trials of white hybrid sweet


and Sons farm, Belle Glade.


Spring 1960.


corn conducted at A. Duda
Harvested May 5-10, 1960.


Ace. No.
& variety


9. R-804
10. R-900
11. R-901
12. R-902
14. R-801

15. R-802
16. R-803






EES 61-9


____ ______ --.-.-- 4.-i-,-,-I-I-u-q-t-t


*1
e

8
0
O

C)
'.4


Rog.
Rog.
Rog.
Rog.
Rog.

Rog.
Rog.


oJ
0
*1-

H.



0,S


3.5
3.5
4.0
2.0
2.5

3.5
3.0


a
A

A4
0
94


2.32

.98
.97
1.00

1.13
.81


ii


.7
1.3
.5
1.0
1.5

1.2
1.3


.0

:1

S.


10.5
11.5
11.0
11.5
11.5

115
11.5


.0



'-4


7.0
8.5
8.0
8.0
8.2

7.5
7.5


k

^
0

43
El
e o
a
'4


5.6
5.5
5.4
5.4
5.7

5.4
5.4


'4
41
42
0
.r44



(B4)
'd o
a)
'A
to


4.6
4.6
4.4
4.6
4.7


0


0


16
16
16
16
18-20

12-14
16


H O
a9o



HI


.65
1.10
.54
1.05
1.30

1.30
1.42


4)
0

.0


4-7
3-9
5-8
5-12
5-14

5-11
4-14


0


63
o


1++
1-
1++
1-
1++


r I
o
4


123
51
60
60
61

61
46


10
H






4-


87.0
36.0
45.0
42.0
49.5

39.0
43.0


a


4-1
p4
0
43
'I)
to


7.4
7.2
6.4
6.5
7.4

7.2
7.1


I
0
-P


Some dieb.

it If
Some long
tips
Some dieb.
Severe
dieback


300 copies


" '"'


-


. ... ..& I .i..





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