Title: Popcorn research, Everglades area.
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Title: Popcorn research, Everglades area.
Physical Description: Serial
Publication Date: 1964
Copyright Date: 1964
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Bibliographic ID: UF00076901
Volume ID: VID00001
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/L-' L'


Everglades Station Mimeo Report EES65-14 January 1965


i- 19$64 Popcorn Research
S' Everglades Area

SVictor E. Green, Jr. and Emmett D. Harris, Jr.-/


Twopopcorn variety tests were conducted in 1964. These were on old muck,
and were contiguous to each other. Both tests consisted of established varieties
tested along with newer experimental varieties. All seed and industrial measure-
ments were made at Ames, Iowa, cooperatively with the Ames Seed Farms, J. R. Murray,
Research and Sales. There were 10 varieties in each test, all being 3-way crosses
except lopop 10 in Test 2, a double-cross hybrid. State Experiment Station hybrids
included Nebraska 104, lopop 6 and 10, and Purdue 213 and 410. All of these con-
tain the line Sg 18, two contain Sg 30A, two contain Sg 1533, and one contains
Iowa 69 in the seed parent with Sg 18. Three contain Ia 28 in the pollen parent,
with one each having N42 and 4722-2AA. All but two of the ASF proprietary hybrids
contain ASF 88 inbred except two with 4722-2AA as the pollen parent inbred.'

Plots consisted of one row of popcorn 20 feet long. All rows were bordered.
Ten-foot alleys separated experiments. The survival stand goal was one plant every
six inches, or 29,040 plants per acre. This was attained by dropping seeds on
February 12, 1964, every six inches in the rows three feet apart, and thinning the
stand to one plant every six inches.

On February 10, fertilizer was broadcast on the soil and disked in at the rate
of 640 pounds of 4-12-16 containing 1 unit each of CuO, MnO, B20 and ZnO per acre.
Diazinon at 6- pounds per acre was applied in the fertilizer to control wireworms.
Cutworms were controlled with one spraying of 2 pints of 8E Toxaphene plus 2 pints
of 1.6E Endrin per 100 gallons of water per acre. Cucumber beetle was controlled by
1 spraying of 2 pounds of actual DDT in 100 gallons of water per acre. Wireworm
damage averaged about 5 percent.

Tasselling midpoint was recorded for each variety in each test, along with
stalk height, ear height, and leaf blight index. Final stands were determined May 18,
and lodging was recorded at harvest. On June 11, exactly 4 months after planting,
the plots were harvested as ear corn in the husk, bagged, and dried in a forced air
oven set not to exceed 105 F. The yields were weighed, husked, and re-weighed.
Shelling percentages were determined from dried samples, and yields of shelled corn
were calculated in pounds per acre. Twelve ears (two from each replication) were
taken from each variety and sent to Ames Seed Farms for industrial measurements. The
ears were measured for length, and 10 ears were measured across the butts for width.
It has been determined that if a popcorn ear is less than 1.3 inches at this point
that there will be shelling and other losses in the snapping rolls of some mechanical
pickers. Ear quality was then determined for each variety. Later, shelling percen-
tage and test weight were determined for each variety. After shelling, the moisture
content was reconstituted to 13.0 percent in closed containers and popping tests were
performed in standard poppers to determine the WT (weight volume test--number of
cubic inches of popped corn per pound of raw popcorn)., The OVT (official volume test-
volumes of popped corn to unit volume of raw corn) was calculated from the regression
formula in Figure 8, Soil and Crop Sci. Soc. Fla. Proc. 20:36. 1960. as has been done
in the past 4 years.


1/ Associate Agr'onomist and Associate Entomologist, Everglades Experiment Station,
University of Florida, Belle Glade, Florida.







Table 1. The Agronomic Characteristics of 10 Varieties of Popcorn Grown at Belle Glade, Florida in 1964.


Ent4r


1
2
3
4
5
6
7

8
9
10

Table

1

2
3

4
.5
6
7
8
9
10


Variety
Name


IoIpop 6
Purdue 213
Purdue 410
ASF A-313
ASF A-313
CMS
ASF A-332
ASF A-332
CMS
ASP A-235
ASF A-234
ASF A-327


e 2.


The 1
Flori


Nebraska
S 104
ASF A-328
ASF A-410
-S
ASF A-411
ASF A-3128
ASF A-3129
ASF A-3130
ASF A-3131
lopop 10
ASF A-314


Silk


Female


Sgl8
Sgl8
sgl8
38L
CMS
38L
43
CMS
43
40
47
40


Coded Parentage


Parent Pollen


Male


Sg30A
S1533
S1533
56
56

38
38

66
56
38


Parent


Female Male


Ia28
Ia28
4722-2AA
88
88

66
66


kgronomic Characteristics of
Lda in 1964. Test 2.
I Sgl8 ISg30A I IN42


4c
39

38
66
66.
66
66
Sg18
38


38
31-58

31-58
3-67
3-71
3-77
3-78
Ia69
56


Ia28


66
4722-2AA

4722-2AA
88
88
88
88
Ia61
88


Tassel
Midpoint
April:


20
21
24
19
23

20
24

20
20
21


Experimental

21


21


Height, Ft.
Stalk Ear


6.5
6.5
6.5
6.5
6.5

6.5
6.5

6.5

7.0
.... =o...


4.0
3.5
3.5
3.5
3.5


3.5
3.5

3.5
3.0
4.0


Leaf
Blight
Index


2.5
2.0
2.0
2.0
2.0

1.5
1.0

1.5
1.0
-1.5


Hybrids, Nebraska 104


6.5

6.5
6.0

6.0
5.5
6.0
6.0
6.0
6.0
5.5


4.5

3.5
3.5

3.5
2.5
3.0
3.0
3.0
3.0
3.5


1.5

1.5
1.5

1.0
1.0
0.5
0.5
0.5
1.0
1.0


I 1. .4 I


Yields,
Bu./A.
Ears


3915
3335
3625
3840
5505

3625
5070

3480
4855
3695J


and lopop

2755

1740
2970

1595
2535
3625
2900
3260
2030
1595


Shell-
out,


82.1
82.2
80.2
82.9
83.0

79.6
80.4

83.1
83.4
81.4


10 Grown

80.8

82.2
80.6

80.4
82.0.
82.7
83.4
82.4
82.0
81.6


Yields
Bu./A.
Grain


3215
2740
2905
3185
4570

2885
4075

2890
4050
3005


Dimensions/
Len- Dia-
gth meter
in. in.


5.5 13.3
6.2 13.5
7.3 15.3
6.5 13.4
6.5 13.4

7.2 13.8
7.1 13.9

6.6 12.4
7.0 12.6
7.2 13.7


at Belle Glade,

2225 17.0 114


1430
2395

1280
2080
3000
2420
2685
1665
1300


7.4
7.0

7.5
6.5
7.0
6.8
6.5
6.3
6.5


13.9
15.7

15.3

12.5
12.3
12.7
14.1
12.6


______________ ________ -


Planted 2-12-64
Harvested 6-11-64
/ Avg. length of 10 ears; width of 10 ears at Butt.
shelling.


Width of 13.0 (10 ears) necessary to prevent picking losses and


?


L m I I I


I .m I I I I


Test 1.


88
88






Table 3. The Industrial Characteristics of 10 Varieties of Popcorn Grown at Belle Glade, Florida in 1964. Test 1.

Enty Variety Coded Parentage Popping Quality Ear Wt./ Kernel Hull /Flake Popped
Name Silk Parent Pollen Parent W.V.T. C.V.T.1 Quality2J Bu. ,lbs. Size 3/ S e Sc Score- Kerne
Female Male Female Male Shape /


1 lopop 6
2 Purdue
213
3 Purdue
410
4 ASF A-
313
5 ASF A-313
CMS
6 ASF A-332
7 ASF A-332
CMS
8 ASF A-235
9 ASF A-234
10 ASF A-327
Table 4. The
Flor
1 Nebraska
104
2 ASF A-328
3 ASF A-410
-S
4 ASF A-411
5 ASF A-3128
6 ASP A-3129
7 ASF A-3130
8 ASF A-3131
9 lopop 10
10 ASF A-314


Sgl8
Sgl8

Sgl8

38L


Sg30A
Sgl533

S61533

66


CMS 66
38L
43 88
CMS 88
43
40 66
47 66
40 88


Ia28
Ia28


4722-
2AA
88

88

66
66

188
88
54 -


1090
1060


1030

1195

1207

1150
1180

1233
1205
1122-


38.3
37.2

36.0


42.7

40.5
41.6

43.6
42.6
40.5


9.0
8.0

7.5

8.0

8.0

8.5
8.5

7.5
8.0
8.0


66.1
67.0


65.4

65.9

67.4

67.6
67.1

66.9
65.9
66.8


92
76

54

80

79

63
64

74
76.
66


Industrial Characteristics of 8 Experimental Hybrids, Nebraska 104, and lopop 10
'ida in 1964. Test 2.
Sgl8 ISg30A jN42 960 33.4 8.0 67.3 59


40
39

38
66
66
66
66
Sgl8
38


88
31-58

31-58
G-67
G-71
G-77
G-78
Ia69
66


Ia28


66
4722-
2AA
4722-2A1
188
88
88
88
Ia61
88


1188
1010


1030
1210
1148
1190
1238
950
1085


f Calculated from regression formula. Figure 8.
Soil and Crop Science.Fla. Proc. 20:36. 1960.
H/ Hull and Flake Score-High is good; low is poor.


41.9
35.3

36.0
42.7
40.4
42.0
43.8
33.0
38.1


7.5
7.0

6.5

7.0
8.5
8.0
9.0
8.0


67.3
66.4

67.4
66.5
66.8
67.3
67.1
67.7
67.5


38. I- I


/ Higher scores indicate higher
10.0 is perfect.
5/ 1.0 = "mushroom" to 10.0 = puz
"butterfly".


7.0
6.8

4.0

6.2

7.1

6.1
6.3

6.6
7.2
6.4L


7.1
6.9


6.7

6..7

6.6
6.5

6.8
6.6
6.8


3rown at Belle


5.3

6.0
4.1

4.2

6.0
7.2
7.0
6.5
7.0


G


5.7

6.2
5.5'-


5.1
6.0
6.1
7.1
7.1
6.5
6.5


7.5
7.5


7.5

..5

7.0
7.0


7.0
6.5
7.0
lade,

6.0


5.0
4.0

4.0
7.0
7.0
6.5
6.5
7.0
7.0


quality 3 Number of kerne.ls in
10 grams of popcorn.


IU


, ,


-










Kernel size was determined by counting the number of kernels in 10 grams of
popcorn. After popping, samples were rated as to hull score and flake score. For
a high score, the hull must break up into many small fragments; low scores are
assigned samples in which hulls fragment to only a few large pieces. The popped
kernel shape index is derived from scores as follows:

1.0 and 2.0 all mushroom
3.0 and 4.0 many mushroom
5.0 and 6.0 intermediate thick kernels
7.0 and 8.0 good thin flakes (butterfly)
9.0 and 10.0 all thin tender flakes

The scores have ranged from 1.5 to 8.5 with samples encountered to date. This
index is useful in indexing varieties for different uses. The mushroom type is
preferred for boxed camamel corn or when transport accompanies popped corn; the
butterfly type is preferred for fresh-popped corn on sale at poppers.

These data for Test 1 are shown in Tables 1 and 3, while those from Test 2
are shown in Tables 2 and 4. Yields were only fair in 1964. The highest yielding
variety was ASF A-313CMS with 4570 pounds of grain per acre, followed by ASF A-332
CMS with 4075; ASF A-234 with 4050; lopop 6 with 3215; ASF A'313 with 3185; ASF A-327
and ASF A-3129 at 3000 pounds per acre. The other relative yields were below 3000
pounds per acre. Tasselling midpoint dates varied from April 19 to April 24, with
an average date of April 21. Most of the stalk heights were 6.0-6.5 feet, with ear
heights of 3.0-3.5 feet from the ground. The ASF varieties show more resistance to
leaf blight (northern) than the Purdue and lopop varieties. Six varieties did not
meet the criterion of measuring an average of 1.3 inches across the butt. Two of
these were among those that exceeded 3000 pounds grain per acre: ASF A-234 and
ASF A-3129.

Although yields were lower, popping quality was higher in 1964. The best
quality was exhibited by ASF A-3131 with 1238 WVT (43.8 OVT); ASF A-235 with 1233
(43.6); ASF A-313CMS with 1207 (42.7); ASF A-234 with 1205 (42.6); ASF A-313 with
1195 (42.2) and ASF A3130 with 1190 (42.0). Kernel size varied from the large
seeded varieties with low number of grains per 10 grams: Purdue 410 with 54, ASF
A-410-S with 56 and ASF A-411 with 55 to the small seeded varieties such as lopop
6 with 92 kernels per 10 grams.

Since 1954 the weight per bushel test on 227 entries in 11 annual experiments
has averaged 66.0 pounds per bushel, and represents a gradual increase from 62.9
pounds in 1954. Since 1953, the official volume test on 228 entries in 12 annual
experiments has averaged 37.1 volumes of popped corn per volume of raw popcorn, and
represents a gradual increase from 32.8 volumes in 1957, and a gradual though fluc-
tuating increase from 31.0 in 1953.

The 1963 data showed that the larger the kernel (smaller number per 10 grams)
the higher the test weight. These data also showed that there was no significant
correlation between kernel size and expansibility upon popping. The 1964 data are
corroborative as regards popping quality and kernel size; but in 1964 there was no
significant correlation between kernel size and test weight in Test 1, Test 2, or
the tests combined.

Kernel Size vs. Test Weight: Kernel Size vs. 0.V.T.:

Test 1 -0.045 N.S. Test 1 0.236 N.s.
Test 2 0.267 N.S. Test 2 0.414 N.S.
Combined 0.027 N.S. Combined 0.351 N.S.







For r values to be significant values as follows are needed- Tests 1 and 2:
5% = 0.632 1% = 0.765- for combined tests: 5% = 0.441, 1% = 0.561.

Entomological Investigations

Observations to determine average ear length. ear diameter and degrees of
earworm damage and weevil damage among the varieties were made on November 3 and
4, 1964, following open storage after harvest. Earworm damage in the Everglades
may be caused by either the fall armyworm, Laphygma frugiperda (J. E. Smith), or
the corn earworm, Heliothis zea (Boddie). Most weevil damage was caused by the
rice weevil, Sitophilus oryzae (Linnaeus). The span of 5 representative ears laid
side by side was measured to the nearest 0.5 cm. for each plot. These measurements
were totalled over all replicates for each variety before determining a per ear
average. The length of each of 5 ears in each plot was taken to the nearest 0.5
inch.

All available ears from each plot up to a maximum of 25 ears per plot were
each assigned an index number (0-5) to indicate the degree of damage by earworms.
An average plot index was computed and multiplied by 100. The highest possible
index, 500, would indicate the greatest assignable degree of earworm damage.
The following indexing system was used.

Index Fraction of Length of Ear Damaged
0 No damage
1 One-eighth or less
2 One-eighth to one-fourth
3 One-fourth to three-eighths
4 Three-eighths to one-half
5 One-half or greater

To evaluate the damage by weevils, 100 kernels were taken randomly from each
plot after the corn was shelled to count the number damaged.

The results of Test 1 are shown in Tables 7 and 8 and those of Test 2 are
shown in Tables 9 and 10. Single degrees of freedom analyses of variance (ortho-
gonal comparisons) were conducted in an effort to determine the role of seed
parents in transmitting resistance to each type of insect damage.

Test 1. The average degree of earworm damage within the ASF varieties was
highly significantly less than that to lopop 6 and the Purdue varieties. The
Purdue varieties received significantly less weevil damage than lopop 6. This
might possibly imply that Sg 1533 with Ia28 or 4722-2AA is more effective than
Sg30A with Ia28 in imparting weevil resistance. Each of the three varieties had
Sg18 as a parent. A-313CMS suffered highly significantly less weevil damage than
A-313, implying that CMS 38L might impart more weevil resistance than 38L.

Test 2. The average earworm damage to A-410-S and A-411 was highly signifi-
cantly greater than that among the other ASF varieties. No obvious conclusions
about parentage could be made.. There were no significant differences among treat-
ments in respect to weevil damage.







Table 5. The Average Yields of Popcorn Varieties Grown
more than once between 1952-1964.


at Belle Glade, Florida,


Times Grown
Variety 1 2 3 4 5 6 7 Total Average


Nebraska 104*
Purdue 32(K-4)*
Purdue 213
Central 4
lopop 8
Iopop 6
Central 1
lopop 10
ASF A-104S
ASF A-88-KP28
ASF A-354
Central 2
Central 115
Purdue 31
Purdue 202
ASF A-441
ASF A-345
Purdue 410
ASF A-225
ASF A-440
ASF A-313
ASF A-332
ASF A-314
Cuba YS(RS)F-11
ASF 54-3425(C-7-303)
ASF-3437(C-7-310)
Central 105
Central 5
Purdue 406-A
ASF A-54-3884
ASF A-KP-3888
ASF A-354-L
ABF 88-3896
ASF A-357
ASF A-323
ASF A-332CMS
ASF 88-4496
ASF A-336
Sgl8 x Sg30A(P-20)
ASF 92-3454(C-7-336)
Central 3


905 1930 5040
2200 2515 1540


2880 4755
1860 2270


3110
2650
1930
1415
4930
5435
5170
1745
3330
1600
2335
4375
4010
5845
3050
4160
4865
4935
5005
3670
3120
2555
1985
585
6365
5150
5655
5165
5195
4835
4875
2905
2775
3960
3175
2735
2065


4720
4675
2990
2925
4290
4185
4180
2080
1980
2560
985
5005
4885
2605
4795
4655
2645
2740
2180
2125
1690
1420
1670
1480
3830
4795
3760
3685
3360
3085
2965
4075
416o
2230
1470
1350
2020


4755
2990
4470
4790
4610
4185
5955
4955
4830
2750
2370
1950
550
2720
2515
2905
3485
2440
3185
2885
1300
1395
1460
2050
1365
2345


4085
435
4860
2255
5365
1965
3085
1750
2735
2415
2035
2500
1200
570
1540


5750
2015


3210
4945


2325 2740
1615 520
5100
3215
1950
1665


* Nebraska 104 and Purdue 32(K-4) are no longer grown commercially.


2225
2395


23145
16045
22315
11510
20765
17295
14565
11940
17910
16990
16215
9075
8880
6680
5410
12100
11410
11355
11330
11255
10695
10560
8485
7190
6270
6025
5020
4410
10185
9945
9415
8850
8555
7920
7840
6980
6935
6190
4645
4085
4085


3305
2290
3720
1920
4155
3460
2915
2390
4480
4250
4055
2270
2220
1670
1355
4030
3800
3785
3775
3750
3565
3520
2830
2395
2090
2005
1670
1470
5095
4975
4710
4425
4280
3960
3920
3490
3470
3095
2325
2045
2045






Table 6. The Average Expansion Ratio (OVT) of Popcorn Varieties Grown at Belle
Glade, Florida more than once between 1953-1964.

Times Grown
Variety 1 2 3 4 5 6 7 Total Average


Nebraska 104*
Purdue 32 (K-4)
Purdue 213
lopop 8
Iopop 10
Iopop 6
Central 4


ASF A-354
ASF A-104-S
ASF A88-KP28
Central 1
Purdue 202
Central 115
Purdue 31


ASF A-313
ASF A-314
ASF A-440
ASF A-332
ASF A-225
ASF A-345
ASF A-441
Purdue 410
ASF 54-3435(C-7-303)
Central 2
ASF 54-3437(C-7-310)
Central 105
Cuba YS(RS) F-1
ASF A-223
ASF A-3546
ASF A-357
ASF A-336
ASF 88-3896
ASF 332-CMS
Sgl8xSg30A(P-20)
ASF A-KP-3888
ASFA-88-4496
Purdue 406A
ASF A-54-3884'
ASF A-81
ASF 2894-3856
ASF 92-3454(C-7-336)


33.4
31.5
35.1
36.8
37.0
33.9
33.5


43.3
42.2
41.7
32.5
38.0
35.0
30.0


45.2
45.6
40.1
43.7
40.1
41.4
38.7
41.3
30.0
31.0
29.0
32.0
23.0
46.1
44.3
44.6
43.1
42.5
43.0
42.8
41.2
38.6
38.1
38.9
37.0
37.5
35.0


35.2
34.0
37.3
37.7
37.8
37.1
39.0
41.0
38.7
40.6
37.5
27.0
29.0
34.0
43.7
44.6
44.4
43.2
43.1
41.3
41.8
38.6
34.0
36.0
31.8
26.0
33.0
46.0
44.1
43.1
44.1
42.4
41.6
41.6
41.6
41.8
39.0
35.6
35.1
33.1
27.0


39.2
24.0
37.3
36.5
40.3
38.3
38.0
43.5
43.1
40.0
36.0
35.8
33.0
24.0
42.2
38.1
43.6
40.5
42.8
40.8
38.7
36.0
35.9
32.0
36.2
34.5
33.0


37.0 36.0 39.1
31.8 35.7 34.7
38.8 38.5 37.2


39.2
38.4
37.4
31.5
45.1
42.4
41.2
34.0
33.5
29.0
28.0


38.7
33.0
38.3
37.0


* Nebraska 104 and Purdue 32 (K-4) are no longer grown ccamercially.


33.4
37.2


253.3
228.9
224.2
188.9
186.5
185.0
179.0
172.9
166.4
163.5
140.0
134.3
126.0
116.0
131.1
128.3
128.1
127.4
126.0
123.5
119.2
115.9
99.9
99.0
97.0
93.5
89.0
92.1
88.4
87.7
87.2
84.9
84.6
84.4
82.8
80.4
77.1
74.5
72.1
70.6
62.0


36.2
32.7
37.4
37.8
37.3
37.0
35.8
43.2
41.6
40.9
35.0
33.6
31.5
29.0
43.7
42.8
42.7
42.5
42.0
41.1
39.7
38.6
33.3
33.0
32.3
30.8
29.6
46.1
44.2
43.9
43.6
42.5
42.3
42.2
41.4
40.2
38.6
37.3
36.1
35.3
31.0






Table 7. Average Ear Diameter, Ear
Damage among 10 Varieties
1964. Test 1.


Length, Earworm Damage, and Percent Weevil
of Popcorn Grown at Belle Glade, Florida.


Ear Ear Earworm %Weevil
Diameter Length Damage Damaged
Variety (cm) (in) Index Kernels

lopop 6 3.3 4.9 263 85
Purdue 213 3.4 5.8 287 69
Purdue 410 3.6 6.5 258 72
ASF A-313 3.2 6.4 224 87
ASF A-313CMS 3.1 6.1 210 63
ASF A-332 3.3 6.8 231 75
ASF A-332CMS 3.3 6.9 233 84
ASF A-235 3.0 6.3 247 72
ASF A-234 3.2 6.6 209 86
ASF A-327 3.2 7.0 235 79


Table 8. Detailed Analysis of Variance for Earworm Score and Percent Weevil
Damaged Kernels among 10 Varieties of Popcorn Grown at Belle Glade,
Florida. 1964. Test 1.

EARWORM DAMAGE WEEVIL DAMAGE
Respec- Respec-
Source of Variation tive Mean tive % Mean
(Parentage Comparisons) d.f. Scores Squares Kernels Squares

Blocks 5 2436 1624.4**
Varieties 9 3635** 401.0*
lopop 6 vs. Purdues 213 & 410 1 263-273 387 85-70 850.7*
Purdue 213 vs. 410 (Ia28 vs. 4722-2AA) 1 287-258 2640 69-72 30.1
lopop & Purdues vs. ASF's 1 269-227 22818** 75-78 95.0
A-313 vs. A-313CMS (38L vs. CMS 38L) 1 224-210 560 87-63 1728.0**
A-332 vs. A-332CMS (43 vs. CMS 43) 1 231-233 10 75-84 261.3
A-235 vs. A-234 (40 vs. 47) 1 247-209 4408 72-86 520.1
A-327 vs. Other ASF's 1 235-226 430 79-78 2.9
A-332 & A-332CMS vs. remaining ASF's 1 232-222 735 79-77 36.1
A-313 & A-313CMS vs. A-235 & A-234 1 217-228 726 75-79 84.4
Error 45 1171 184.2







Table 9.


Average Ear Diameter, Ear Length, Earworm Damage, and Percent Weevil
Damage among 8 Experimental Hybrids, Nebraska 104 and lopop 10 Grown
at Belle Glade, Florida. 1964. Test 2.


Ear Ear Earworm %Weevil
Diameter Length Damage Damaged
Variety (cm) (in) Index Kernels

Nebraska 104 3.2 6.6 263 74
ASF A-328 3.3 6.6 271 74
ASF A-410-S 3.8 6.8 272 66
ASF A-411 3.5 6.4 284 83
ASF A-3128 3.1 6.6 253 71
ASF A-3129 3.1 6.5 235 71
ASF A-3130 3.0 6.4 214 61
ASF A-3131 3.0 6.3 229 74
Iopop 10 3.2 5.8 271 80
ASF A-314 3.0 6.2 231 75


Table 10.


Detailed Analysis of Variance for Earworm Score and Percent WIeevil
Damaged Kernels among 8 Experimental Hybrids, Nebraska 104 and lopop 10
Grown at Belle Glade, Florida. 1964. Test 2.


EARWORM DAMAGE WEEVIL DAMAGE
Respec- Respec-
tive Mean tive % Mean
d.f. Scores Squares Kernels Squares

Blocks 5 995 302.8
Varieties 9 3286 241.1
lopop 10 vs. All Others 1 271-250 2402 80-72 355.3
Nebraska 104 vs. All but lopop 10 1 263-249 1042 74-72 30.1
A-410-S vs. A-411 (39 vs. 38) 1 272-284 408 66-83 901.3
A-3128 vs. A-3129 (G-67vs. G-71) 1 253-235 990 71-71 1.3
A-3130 vs. A-3131 (G-77vs. G-78) 1 214-229 645 61-74 481.3
A-3128 & A-3129 vs. A-3130 & A-3131 1 244-222 3060 71-68 66.7
A-328 vs. A-314 (40 vs. 38) 1 271-231 4720 74-75 3.0
A-410-S & A-411 vs. Other ASF's 1 278-239 13748** 75-71 117.4
A-328 & A-314 vs. Remaining ASF's 1 251-233 2556 75-69 213.6
Error 45 300.1


EES65-14
300 copies




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