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Title: Horticultural trials with celery varieties.
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 Material Information
Title: Horticultural trials with celery varieties.
Series Title: Horticultural trials with celery varieties.
Physical Description: Serial
Language: English
Creator: Burdine, Howard W.
Publisher: Everglades Experiment Station.
Place of Publication: Belle Glade, Fla.
Publication Date: 1956
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Bibliographic ID: UF00076892
Volume ID: VID00001
Source Institution: University of Florida
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Resource Identifier: oclc - 166140845

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S7 C?


HORTICULTURAL TRIALS WITH CELERY VARIETIES
WINTER AND SPRING 1956

by

Howard W. Burdine


Performance of celery varieties and certain
promising breeding lines in observational
and replicated trials during the 1956 winter
and spring season is summarized and present-
ed in tabular form.





EVERGLADES STATION TIMEO REPORT 57-3

Belle Glade, Florida


August 30, 1956


j~~HHb~Hi-:HNH~ft'rHHK:-SEI:t::--::IH~-










HORTICULTURAL TRIALS WITH CELERY VARIETIES
WINTER AND SPRING 1956

Howard W. Burdine /'

Celery variety trials were initiated in the winter and spring of 1956
after a lapse of several years during which pascal or green type celery increased
its predominance over the golden type. Celery continues to be one of the most im-
portant vegetable crops grown in the Glades area. An estimated 10,100 acres of
celery was grown in Florida in the 1955-56 season of which approximately half of
this acreage was grown in the Glades area.

By far the greater part of the acreage of celery grown in this area is the
Summer Pascal type, such as Waltham Summer Pascal, Florida Green Pascal and P. P.
Volante Summer Pascal. One of the chief reasons for this may be due to greater re-
sistance of the Summer Pascal type to early blight (Gercospera apii Fr.), than some
other types such as the Utahs. Another reason may be due to a seeming tendency of
the Utahs to exhibit greater incidence of blackheart under Florida spring conditions
However at our present stage in the celery variety trial program this is speculation
Florida has continually taken a beating over the years in competition with Californi
for price paid for celery on the major markets. Whether this is due to differences
in type of celery, appearance, taste or other reasons, has not been definitely es-
tablished, However part of the objective of these trials is to find types or varie-
ties of celery that will enable the celery growers in the Everglades region of soutt
Florida to compete favorably with celery grown in other areas.

How the trials were conducted:

These trials were carried on farms of Grower-Cooperators 2/. Plants were
grown on grower's seed beds under the same conditions as their own plants. The beds
were sown, plants pulled, set in the field and harvested by Experiment Station per-
sonnel. Fertilization, cultivation, disease and insect control were done by the
grower as part of his regular program, Grower-cooperators also furnished experience
celery graders, who did the grading of the plants in these trials at harvest. The
plants were set at the same spacing, both within the rows and the same width of row
as used by the grower. It will be noticed that there was some variation in this re-
spect by the different growers.

The first trial, Table I, was considered to be more or less a preliminary
trial to point up some of the problems involved in the evaluation of celery varietic
In fact all of the trials indicate that further information on the conduct of celer;
variety trials for the area is needed. Errors were too large in all the trials to
point out differences which is felt are there.

SAssistant Horticulturist, Everglades Experiment Station, Belle Glade, Florida.
2The writer wishes to express appreciation to growers A. Duda and Sons, Wedg-
worths Inc., and Fritz Stein on whose farms these trials were conducted. Without
their cooperation, the scope of these trials would necessarily have been greatly
reduced.
Also, the writer wishes to express appreciation to the various seed companies,
Tables I, II, III, IV, V and VI, who also cooperated in this program by furnishing
seed for the varieties used in these trials.










Data for four replicated trials are given in Tables I, II, III and V.
Data for two observational trials are given in Tables IV and VI.

All varieties used in the replicated trials were Pascal types in which
Waltham Summer Pascal was used as the check variety. Some Golden type varieties
were used in the observational plots. Golden type celery now occupies only about
10 percent or less of the acreage of the area. However it is expected that one or
two replicated trials for golden type celery will be held during the next season.

Growers in this area start seed beds in June and are cutting celery in
the field about December 1. Some growers continue cutting celery into June, al-
though some finish up in late April. This means that celery is growing in the
field under the conditions of fall, winter and spring. During this time daylength,
temperature, and amount of precipitation vary greatly on celery growing in the
field as well as in the seed bed. Thus it will be necessary for repeated trials
under all typical growing conditions before a real evaluation of available celery
varieties can be made. The trials reported here can only be interpreted as the
performance of the particular varieties under the particular conditions of winter
and spring of 1956. They are also subject to the differing conditions of fertility
level, spacing and differences in degree of insect and disease control by the var-
ious grower-cooperators.


Results:

1. Summer Pascal types.

In none of the trials were differences in these varieties significant.
It is interesting to note however that P. P. Volante Summer Pascal ranked higher
than Waltham in all trials in weight of field trimmed celery as well as in esti-
mated crates per acre although in some cases the difference is slight. Florida
Green Pascal was higher in rank in some trials, and lower in others than the Wal-
tham Summer Pascal.

2. Utah types.

The Utah types are characterized by their high susceptibility to early
blight (Cercospera apii Fr.), their long, ribbed petiole and their compact type
of growth. Utah 52-70 has been commercially grown in the area and early blight
successfully controlled. This seemed to be the outstanding Utah variety in these
trials. Its performance in relation to the other types and varieties seemed some-
what better in the later trials than the early ones. This may be at least partial-
ly due to spacing which was greater on the two later trials than the two early ones
In spite of a high incidence of blackheart on the late trials, its large size en-
abled it to compete well on a yield basis. All the Utahs exhibited a considerable
amount of blackheart in the late trials, however this was also true of the Summer
Pascal types.

All of the Utah types exhibited a high degree of bolting in the trial at
Wedgworth, Table IV. The plants were seeded on November 29, and were well out of
the cotyledon stage when a protracted cold spell came to the area in early January
lasting two weeks. Plants for the plantings at Steins, Tables V and VI, were on
the seed bed, and had largely germinated, but were still in the cotyledon stage.
It is of interest to note that there was no evidence of bolting at harvest in the
plants of this trials









3. Other types.

Ferry Morse 259-19 ranked at the top in yield in the trial harvested
March 20, Table II, but in the late trials it did not fare as well. This is in
line with observations of commercial plantings of 259-19 for this particular season
As the season progressed, the relative size of this variety decreased.

Ferry Morse 13B seemed to perform relatively better in the later trials
as the spring progressed. It was the only variety on which no bolting was observeL
at Wedgworths. It had the lowest percent of unmarketable plants due to blackheart,
and was highest in terms of weight of field trimmed marketable plants. However
this variety was tried commercially in the area during the season and was largely
rejected because of extreme brittleness.

Everglades Experiment Station breeding lines 136 and 148 which are re-
lated lines were included in these trials. E.E.S.148 was used only in the late
trial as seed was not available for the early trials. These lines are similar in
appearance They are light to medium green in color, a shade lighter in color than
regular Summer Pascal, Both exhibit a very high resistance to early blight. They
are fairly tall, being intermediate between Summer Pascal and Utah 52-70, a tall
variety. Both have smooth, thick, fairly long, fleshy petioles and a compact Utah
type of growth. Their performance in terms of yield compared favorably with any
of the varieties in all of the trials. There was some bolting in the trials at
Wedgworth in the 136 line, but this was less than observed in the Utah types.
Eighteen percent of the plants showed severe blackheart, but this was also less
than the Utah types and generally less than the Summer Pascal types, particularly
the Waltham strain.







Table I. -


1956 Replicated Celery Variety Trial #1 on Field N-8 at Duda's. Plants set October 6,
1955. Harvested January 13, 1956, 99 days from date plants set in the field until Har-
vest. Plot size single 50Q rows of which 40I was harvested. Rows 24" wide, plants 6"
in the row.


Plant Characteristic Grades-Percent of Total Plants
(1) (2) (3) (4) (5) (6) (7) T(8) (9 (10) (1i (12)

o- d .,a s : o 0

00 0 s .rI 00-- 0+2 (D o S OD 0 *0 ) (1)


Sumer Pascal-Waltham F.M. 25.0 7.6 1.8 504 558.6 4.2 9.3 16.9 45.5 24.2 721.6
Fla. Green Pascal Kil. 25.7 8.0 1.7 491 572.7 6.1 10.4 18.7 Z0.1 2h.6 747.9
Summer Pascal-Volante Vol. 25,7 7.7 1.8 490 621.5 6.9 11.2 22.7 39.2 20,0 816.8
Utah 52-o0 F.M. 28.3 9.0 2... 73 591.3 7.2 8,9 19.2 3U.3 *0.6 689.3
3 M 04 6- OM 9- -E-- 334 70





13B9 F.M, 26.6 7.4 2.7 691 657.4 9.0 9.8 L5.5 L 32.7 33.4 703.6


Least sig. diff, for
Least sig. diff. for


oxtandara error
a Prob. of 19:1
a Prob. of 99:1


(Ibs)
(Ibs) =


114.0
154.2


Stanaara error o1
Least sig.diff.at a
Least sig.diff.at a


a mean 4.J
Prob.of 19:1= 219.4
Prob.of 99:1= 299.2


* (1)
(2)
(3)


Source of Seed. -F.M. Ferry Morse Seed Co.; Kil. Kilgore Seed Co.; Vol. P. P, Volante Co.
Height of Plants .Mean of a total of 30 plants in 6 replications.
Petiole length to first node Plants measured from base of petiole to the first node, a mean of


JO plants from 6 replications.
(U) Blight rating A rating of the severity of Early blight (Cercospera apii Fr,) on a 1 to 5
scale; 1-slight infection to 5-very severe infection. Figures are a mean of readings on
6 replications,
(6) Lbs. Harvested Differences are not significant.
(12)- Estimated yield per acre Differences are not significant.
There was no blackheart observed in this plot.


_ _~ ____ _____~__








Table II -


1956 Replicated Celery Variety Trial #2, on Field A-3 at Duda's. Seed beds sown 9/29/55;
plants set 12/19/55; plot harvested 3/27/56, 99 days from date of setting of plants until
harvest. Plot size single rows 401 long set by planter in 6 replications. 30' of row
harvested for each variety in each rep. Rows 24" wide, plants set 61 apart in the row.


Plant characters Grades Percent of Total Plants (5)
(1) (2) (3) (4) (5) -(6) (7) (8) (9) (10) (a1) (12) (13) (14) T
o a
o oP 0) H O t o MN w a 0 0 0 C0P 4 4
Variety e to t t > b 0 oo o oo 10 a .0c
:j 0 -14 cd + Y q &404 -H D 0 % 0 0 g- 1 1
0__ __ OHo6 __ aH
Summer Pascal-Waltham F.M. 23.7 7.3 2.3 344 506.2 0.0 9.1 23.9 32.7 22.8 9.1 2.5 0.0 873.8
Fla. Green Pascal Kil. 23.6 7.3 2.1 374 497.0 0.0 8.3 24.9 28.-4 24.3 8.6 5.6 0.0 919.3
Summer Pascal-Volante Vol. 23.3 7.5 2.0 364 514.7 0.0 9.1 23.9 32.7 22.8 9.1 2.5 0.0 915.7
Utah 52-70 F.M. 26.7 9.7 3.3 357 530.0 0.0 8.'4 21.0 31.,9 19.0 16.2 3.4 0.0 958,2
259-19 F.M. 23.9 7.6 2.0 362 541.0 0.0 1:. 32.0 33.4 16.3 5.5 1.7 0.0 986.6
13B F.M.. 23.8 7.8 2.7 343 499.3 0.0 7.3 26.5 33.8 18.7 9.6 4.1 0.0 862.4
E.E.S.-136 EES 24.3 8.7 0.2 363 549.2 0.6 9.4 27.0 31.7 20.1 7.7 3.6 0.0 937.6
Summer Pascal Kil. 23.7 7.2 2.1 356 459.6 0.0 5.9 14.3 32.6 29.2 13.8 4.2 0.0 800.3


Standard error
least significant diff. for a prob. of 19:1
Least significant diff. for a prob. of 99:1


= 21.2
= 60.0
= 80.


Ibs.
It
II


Standard error of a mean
Least significant diff. for a prob. of 19.1 =
Least It, of 99.1 =


* (1) Source F.M. = Ferry Morse Seed Co.; Kil. Kilgore Seed Co.; Vol- P.P. Volante Co.; ES Everglades
Experiment Station
(2) Mean height of measurements of 30 plants in each variety from 6 replications.
(3) Petiole length to first node Mean length of petiole from base to first node from a total of 30 plants
from 6 replications.
(4) Blight Rating. 1-5 scale. A rating of severity of Early blight (Cercospera apii Fr.) 1 slight
infection to 5-very severe infection,
Only a very slight amount of blackheart was observed in this plot.


46.16 cral
132.5 "
177.8


177.8


--.


--






Table III -


1956 Celery Replicated Variety Trial #3 at Wedgworths. Seed Beds sown November 28, 1955;
plants machine set 2/16/56; plot harvested 5/22/56, 96 days from setting of plants until
harvest. Rows 24" apart, plants set 7" in the row plot size single rows 35' in length,
30' of row harvested. Renlcate.d 6 timne


*(6) I-(7) "(8) (9) 10) e1) 12) (13) of Marketable plants
(i) (2) t r (5) M M in grades from 3 repli-
d fO nations only.
(1) (2) (3) 4) (5) W p 4 b Il nations only.
1 (4 3l5t) (161 7) (18)

Variety 0 a a 3 o4 B 3
0 o ( ot ,..4 0 *-
D P9 r n P 50 er 0 'k ____________M __ U3: t- M M P, a^ ; Ei-4 M :p4 Cpp
Summer Pascal-Wlaltham F.M. 22,8 8.1 27T 8.g 0. 3388 O,12 57.6 3.t 299 171 2o71 0 15.9 3G,6 256 22g0
Florida Green Pascal Kil. 21,0 8.2 2.8 8.7 0", 29.1 0.18 55.5 10.7 3 169 209.2 0. 209 29.7 4.I 5.1
Summer Pascal, Volante Vol. 22. 22 8.1 08 18.6 11T 73. 73. 301 22 27851 -0. 22.1 32.7 27.9 17.3
Utah 52-70 F.M 25.9 10. .2 10.7 11. 23.7 ITT. 63.2 95 302 190 255.2 1. i7. 38.0 18.5 .7
259-19 TFMY. 22.2 .6 2.3 8 0"7 19.i4 "0.1 73- 9 6- 296 218 273.1 9.1 20.0 11.5 6 0 5
13 B F.M. 22.7 -79 3.9 11.2 0.0 .0 0*.00 87.o 8g 4299 262 344.4 28.57 215 208 O.0 29~T
Utah Pascal A&C 22-8t 8.1 .3 107.2 25. 00 .9 16.9 299 13a 1TZ5.7 O.O 26.0 31.2 5-2 37.7
Utah Jumbo Gill 23.5 .5 10. 28.7 .7 .00 39.3 1857 300 118 1lh6,9 .O 35.7 186 2876 17.1
UE*S*ov 136 a 23EM 9-T7 0. 1- 2 i 187.1 37.9 787 f 3.3 307 218 1 351.6 37.6 .7o 20.2 773 20,2
Improved Pascal A&C 1.I 7.9 23 8.50.3 9.7 .7 827 8,7 298 216 27f.579 O,19.8 /0.513.O 26.
01 of row har-, sted. Ren cate 6 timesrl~l








.71 5.72 74 5 19 .7 ZU- 5 13 U -2 =


Standard error
Least significant difference 19:1 =
99:1 =


23.3
65.9
87.6


lbs.
It


* (1) Source of seed F.M.- Ferry Morse Seed Co.; Kil. Kilgore Seed Co.; Vol. P. P. Volante Co.; A&C Abbott
and Cobb Seed Co.; EES Everglades Experiment Station; Gill Brothers Seed Co.
(2) Plant Height Mean height of 30 plants from 6 replications:
(3) Length of petiole to first node Mean length of petiole from base to firse node, based on measurements of
30 plants from 6 replications after field trimming.
(4) Blight rating. 1-5 scale based on severity of early blight (Cercospera apii Fr.) 1-very little blight in-
fection to very severe blight infection.
(5) Mean No. of Petiole No. of petiole per plant after field trimming 16 or more inches in length.
(7) Percent Blackheart Percent of total population too severely blackhearted for market use.
(10) Percent of total plant culls Percent of total population that were culls excluding blackheart and seeders.
(13) Weight Height in pounds of marketable plants after field trimming.
(14) (18) Percent of marketable plants as graded from three replications only.






Table IV 1956 Celery variety observational plot #1-at Wedgworths. Seed beds sown 11/29/55. Plants set 7 -
in field 2/19/56. Harvested May 22, 1956, 93 days from setting of plants to maturity. Two
replications; each replication W44 long consisting of- 75 plants set 7" in 24" rows. 30' of row


harvested in each replication.
S(1) Plant Characteristics (6) (7) (8) (9) (10) (11) (12)
(2) (3) (4) (5) 1 E
o0 i-H 0 o t :7 to
+4 0) 0 4' 4P 4P ID 4- a -1
44o. d 0 ar a P-I g-,
o o 0 o 0 0 c W 4 a 0 o
43 44 H 4DH MM -1 C P-4 .c! P+ F4 4 H P4'.
Variety 0 4 '., r
4 R Ml h. 0 *: 94:> 4 4:0 3rl fr (X 0 0 *
0, H 0) a) A a O ,.0 -, 0 O)
3OCOO S1 P4M o o M 7 -iP0 PO
Utah F.M. 21,8 8.1 14.0 9.9 103 3.9 7.8 81.6 9.7 84 101.2
Uta 10 B F.M. 21.5 8W2 1.3 9.5 98 20.5 25.5 h18O 11.2 -7 t 5.6
Utah 15 7F.4M. 22,0 7.9 3375 1T 95 12.6 8.4 76.0 52.6 73 79.0
Utah 52-70 H F.M. 24. 4 9.6 'W3 9.2 82 5.1i 29.3 39.0 2.4 32 30.5
Utah Top 10- FH 26.8 10.6 38 3 10.0" ~98 i1i6.3 29.6 35T. ".1 "~9 61,0
Utah 10 Grand FMH 23.5 8. 3.8 10.3 65 36.7 1U.2 29.W 23.5 20 22.6
Supreme Golden F. 22.T 9.5 3T.0 8- 94 2.1 31.9 67.0 0T 0 63 51.3
Golden #15 X11. 23.5 10.2 4.5 9.o 62 93- 154.8 33.9 8B.1 21 19.3
Golden Plume F.M. 22.9 .2 373 10. 89 52. II.0 16.9 3T7 3.9
Tall Golden Self Blanching F.M. 23.3 .6 33 10.2 82 0.0 1415 57.3 172 47 52
Michigan Golden GRG 23.0 9.1 3.3 i04 81 1.2 61.9 51.9 o 2 3 .5


* (1) Source of Seed F.M. Ferry Morse Seed Co.; FIM F. H. Woodruff & Sons; Kil. Kilgore Seed Co.;
GRG Grand Rapids Growers, Inc.
(2) Plant Height Mean height of 30 non-bolting plants, 15 plants from each replication
(3) Length of Petiole to First Node. Mean length of petioles from base to first Node of 30
marketable plants, 15 plants from each replication.
(4) Blight rating 1-5 scale, mean rating of severity of Early blight (Cercospera apii Fr.) of two
replications. 1-slight infection to 5-very severe infection.
(5) Mean No. of petioles No. of petioles 16" in length after field trimming from 30 plants on 2 replications
(6) Total No. of Plants Harvested While 75 plants were set 7" apart in each block this number is the plants
that survived in two 30' segments of row a perfect survival on perfect spacing would be about 102 plants.
It was not possible to get marketable plants graded into marketable grades on this plot.
(10) Percent cull exclusive of those plants culled for bolting and blackheart.







Table V 1956 Celery Replicated Variety Trial #4 at Stein's. Seed beds sown 12/21/55. Plants set
3/17/56. Harvested 6/12/56, 85 days from setting of plants until harvest. Plots size -
as planted 60 plants set 7" apart in 351 of 28" rows, as harvested 301 of row. A
perfect stand on perfect spacing would have 51 plants per plot. Replicated 6 times. This
plot was hand set.
(1) Plant Characteristics (7) (8) (9) Grades-Percent of Marketab e Pla ts (6) (17)


43 r- -c i e o n a n e o
(2 o 4 5 6 t ( ( ) 0(
0 ) o -p.p r-N Hm N t r 0 *4 o t.i
0 0 -H r 0 rJ 0 ) P q
Variety C' m aO + u '+ H w cP N, M C' 4 _
0mk) 4, to g oM df Ma a) DP 0.p C-i2Po
rq V t) Na NO) N) Ha) to 0)P a)
00 cO loq-i a H ri ca O t0 o (1 0 4+4 J. a 0 0 a 0 a 0 a o
Co CQ PLy ^-' i<+*-' tA o 1 c00 m 5 ol p4> ai cM & T P4 \o10 Jco oP o ca d
Summer Pascal-Waltham F.M. 18.3 71 8.3 1.3 304 252 313.2 10.9 0.0 0.0 1-80 48.0 34.1 11.9 6.3 457.3
Florida Green Pascal Kil. 17.5 7.0 7. 1F.0 305 272 316.6 4.9 0.0 0.0 2.2 .0 0 1.9 26.8 5.9 422.2
Summer Pascal-Volante Vol. 18.5 6.6 2.5 0.8 308 280 321.1 5.2 0.0 0.0 3.2 2.1 38.2 16.4 3.9 179.1
Utah 52-70 F.M. 723-2 9. 1 .1 22 30 26 i 1.2 217 0.0 00 329 3.1 13.8 I0.2 0.7 5356
259-19 F.M. T17.6 .6 3.4 304 266 300.9 5.3 0.O 0.0 2.6 23" 3. 36D 36. 7.6 391.5


Improved Pascal -A& 15.5 6.2 I8 1. 300 228 263.2 7.3 .0 0.0 I.0 27.6 59.2 I1.9 16.7 363.1
Summer Pascal Kil. 19. 6.7 3.0 1.2 300= 265 320.9 8.3 0.0 0.0 5.7 T0U9 =i2.F 1,8 3T.7 75.2
E.K.S. 16 EE I 1*9.3 7.9 17. 0.U4 306 2592 457.9 2.0 0.0 0.0 21.9 35.6 22.9 1951 2.0 I5603


Least sig.
11 It


Difference
It


Standard error
for odds of 19:1
" 100:1


30.2
86.1
15,o0


Ibs.
Itt
n


Standard error of a
Least sig. diff. for odds
11 it f n It


Mean
of 19:1
" 100:1


= 31.4
= 89.4
= 119.4


* (1) Source of Seed F.M. Ferry Morse Seed Co.; Kil. Kilgore Seed Co.; Vol. P. P. Volante; A&C Abbott and Cobb
Seed Co.; EIS Everglades Experiment Siation breeding lines.
(2) Plant Height Mean height in inches of 30 plants, 5 plants from each of 6 replications.
(3) Petiole length to first node Length of petiole from base to first node of 30 plants, 5 plants randomly
selected from each of 6 replications.
(4) Percent of Harketable plants showing node crack Percent of marketable plants showing cracking at the first
node after "field trimmingr",-
(5) Blight Rating 1-5 scale indicating severity of early blight (Cercospora apii Fr.), 1-slight infection
to 5-very severe infection.
(9) Percent of total population with severe blackheart Plants showing blackheart so severely as to be unfit
for market after trimming.
(10) Culls Percentage of total plants, based on total population exclusive of those plants culled for severe blackheart
17) 7iel crates per acre: Based on plot size and number of plants of each plot in each mentioned grade,







Table VI -


1956 Celery Observational Plot #2, at Stein's. Seed beds sown 12/21/55, plants set 3/17/56,
85 days from setting of plants until harvest. Plot size as planted 75 plants set 7" apart
in 44' of row with 2 replications. As harvested, 301 of row in each of 2 replications. Rows


were 28t' wide A


rpr't~f Rfn1- ti r~ri+h n~ft~r~i. Mmlr n rWrn1r1 .nit1I irn har~t4.cz n? 1O3 lnnxin


*(1) Plant Characteristics (6) (7) (8) (9) (10) Grades.Percent of Marketable Plants
(2) A3) ( (5) (11) (12) (13) (14) (15) (16)

o 4 o,
C .) o r i 0 0 o 0
Variety a c < o & "p..p ( > c
Vre ) a, to a, ~ a, '- a,
O0 0 OCl O 0O 0
0 <-1 01 rt 0 0 CH r 0 3 1 0




Supreme Golden F.M. 18.2 6,5 1.5 93 67 '77. 3.2 18.3 0.O S.PO O. 31.3 0.43 -28.
EES 1 Lot 10 ErS 19.8 7.t 23.2 0.5 105 9F5 ~133,1 l.8 8,6 0.0 0.O 15.8 38.9 26.3 I.9
Golden Plume F.M. 19,8 68 2 90 66 75 5. 25. 0. 530 39. 7
Tall Golen Self Blanch FM. 29 69 19 05 53 721 7.2 1 3. .0 O.0 22. 585 75
Michigan Golden GRG 22.8 6.9 2. 2, 98 61 0 98. 26.5 7 0.0 0~. 0 .3 65. 20.9 1 .
Zo t u ,? 51Y 11- ,


Source of Seed Gill Bros. Seed Co.; Kil. Kilgore Seed Co.; F.M. Ferry Morse Seed Co.; EES Everglades
Experiment Station breeding line; GRG Grand Rapids Grower's Inc.
Plant Height Mean height of 30 plants on 2 replications.
Petiole length from base to first node of 30 plants from 2 replications.
Node crack percent of marketable plants showing node crack after field trimming .
Blight rating 1-5 scale indicating severity of early blight (Cercospera apii Fr.), 1-slight infection to S-very
severe infection.
Percentage of plants with severe blackheart percentage of total harvested population with blackheart too severe


lor market purposes.
(10) Culls percentage of the total population that were culled mostly for lack of size, other than those culled
due to severe blackheart.
(11) (16) Grades percent of marketable plants.


(9)




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