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Research Report SAN
University of Florida
Institute of Food & Agricultural Sciences
Central Florida Research & Education Center
Sanford, FL 32771-9608 L
)5-02
Yellow Summer Squash Variety Trial
I. D. Hancik & J. M. White
This report summarizes the evaluations of 12 cultivars/breeding lines of yellow summer
squash. Entries were evaluated for adaptability to Florida's spring production conditions. The
field was prepared (fertilized and pesticide applied) on March 9, 1994, as per guidelines
suggested in the Extension Service Control Guide; raised beds were formed and covered with
black plastic mulch. Squash seeds were planted by hand in hills (2-3 seeds/hill) 24" apart in
25' long plots on March 11, 1994. A randomized complete block design was used with four
replications per entry. Plots were thinned to one plant per hill on March 23, 1994.
Harvesting began on April 18, 1994, and concluded with the twelfth harvest on May
24, 1994. Yield data and other characteristics rated in this trial are found in Table 1; weather
data are recorded in Table 2.
Summary
Total marketable yield, expressed as 42-lb bushels/acre, ranged from 646-994. Early
(first three harvests) marketable yield ranged from 40-156 bushels/acre. Sunex 9651, SS1, and
CS2 were all evaluated in the 1993 as well as the 1994 trial. Sunex 9651 produced fruit which
was slightly greenish in color. SS1 and CS2 were noted to produce green-tipped fruit in 1993;
CS2 also produced green-tipped fruit in 1994. Four entries (Dixie, Sunex 9651, Horn-of-
Plenty, and HMX 0704) had fruit with a rough/warty exterior.
It was extremely difficult to establish a direct-seeded stand of HMX 0704. Plants had
to be started in the shadehouse and transplanted to the field as plugs in order to obtain an
adequate stand.
This report is not intended to recommend one variety over another, but rather is meant
as a general guideline for variety selection. Different field locations, planting dates, and
cultural practices may alter the performance of these squash lines; growers should be mindful
of this variability when selecting a new variety, and small test areas of new varieties may be
advisable.
Seed Sources:
AS -
FM -
HM -
HO -
PS -
RO -
SU -
Asgrow Seed Co., 7000 Portage Rd., Kalamazoo, MI 49001 .
Ferry-Morse Seed Co., Box 392, Sun Prairie, WI 53590
Harris Moran Seed Co., 4511 Willow Rd., Ste. 3, Pleasanton, CA 94588
Hollar Seeds, P. O. Box 204, Colusa, CA 95932
Petoseed, P. 0. Box 4206, Saticoy, CA 93007-4206
Rogers Seed Co., P. O. Box 4188, Boise, ID 83711-4188
Sunseeds, 8850 59th Ave., N.E., Brooks, OR 97305
o 8 199
' SOifo yeber 1994
ui r ,orida
Table 1. Yellow Summer Squash Variety Trial Spring
Yield (bu/A) No. (100/A)
Total Early Total Early Total Early Total Early Curva- Smooth-
Entry Supplier mkt.z mkt.Y cull cull mkt. mkt. cull cull turex ness" Notes
SS1
CS2
FMX 586
FMX 217
XPH 1713
Pavo
Dixie
Sunex 9651
FMX 227A FM
Horn-of-Plenty HO
HMX 0704 HM
PSX 41587 PS
994 a
974 a
892 ab
866 a-c
847 a-c
772 b-d
766 b-d
749 b-d
721 b-d
695 cd
678 cd
646 d
145 ab
156 a
118 a-c
73 bc
77 be
128 ab
117 a-c
145 ab
79 a-c
108 a-c
40 c
50 c
382 b
221 be
270 bc
316 be
4 a
3 ab
1 ab
0 b
746 a 2 ab
330 be 4 a
296 be 1 ab
353 bc 1 ab
295 bc 1 ab
350 be 2 ab
205 c 0 b
288 be 0 b
232 be
290 a
269 ab
233 be
96 f
179 de
214 cd
154 e
189 c-e
185 c-e
184 c-e
152 e
55 ab
69 a
52 ab
27 bc
14 c
43 a-c
48 ab
39 a-c
38 bc
40 a-c
27 be
18 c
32 ab
31 ab
36 a
32 ab
35 ab
27 ab
27 ab
28 ab
26 ab
34 ab
22 b
25 ab
1 b
3a
0 b
Ob
1 b
2 ab
1 b
2 ab
0 b
1 b
0 b
0 b
1.6
2.1
3.7
1.8
3.3
2.3
2.6
1.6
1.8
2.7
2.0
2.4
3.5
4.4
3.6
2.9
3.3
3.6
2.1
2.7
3.4
2.2
3.1
3.1
good color
nice, some green tip
warty
warty, greenish
good color
warty
warty, poor
greenish
shape
ZMean separation in columns by Duncan's Multiple Range Test, 5% level.
YFirst three harvests April 18, 20, & 22. 1994.
xRated from 1, straight; to 5, very curved.
"Rated from 1, rough; to 5, very smooth.
a
B
B
- 1994.
Table 2. Temperature and rainfall at CFREC-Sanford during the 1994
spring season (March 11 May 24).
Daily temperature (F) Rainfall
Date Maximum Minimum (inches)
March 11-31 91 41 0.89
April 1 30 91 45 1.38
May 1 24 95 54 1.84
S Total 4.11
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
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