f' University of Florida
/ 9/ Institute of Food & Agricultural Sciences
Central Florida Research & Education Center
Sanford, FL 32771-9608
Research Report SAN 97-02 Marston Scie ngust 1996
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Yellow Summer Squash Variety Trial
AUG 131996
J. M. White
University of Florida
Nineteen lines of yellow summer squash were evaluated for yield during the spring season
for central Florida. The field was prepared (fertilized and pesticides applied) as suggested in the
Extension Service Control Guide and seeds planted on March 26, 1996. Within six days, rainfall
totaled 5.27 inches and flooded parts of the field. The trial was replanted April 15, 1996. Two
to three seeds were hand planted 24" apart on raised beds 5-ft on center. Plots were 20 feet long
and a CRB design was employed with 4 replications. The soil type was a Myakka fine sand.
City of Sanford reclaimed water was used to overhead irrigate on an as-needed basis. Currently,
reclaimed water is only permitted when vegetables are to be thermally processed; therefore, it
cannot be used overhead on fresh market vegetables.
Harvesting began on May 17 just 32 days after seeding, and ended on June 10, 1996, with
a total of 11 harvests. Yield data and other characteristics are found in Table 1. Weather data
are recorded in Table 2.
Summary
Total marketable yield, expressed as 42-lb bushels per acre, ranged from 423 924. Early
(first 4 harvests May 17, 20, 22, and 24) marketable yield ranged from 19 221 bu/acre. The
top five entries for early yield, total yield, and fruit appearance were Monet, Superpik, Multipik,
General Patton, and Seneca Supreme. Prelude would have rated higher, but some off-type plants
were found in each replication, reducing the yield. Dixie looked good in the 1995 trials, but did
not have a smooth appearance in 1994, and again in 1996.
This report is a general guideline for variety selection based upon one year's observation.
Different locations, planting dates, and cultural practices may alter the performance of these
yellow summer squash lines. Therefore, growers should use caution when selecting a new variety
and plant small test areas.
Seeds were obtained from the following cooperators:
AG Agrisales, Inc., P. O. Box 2060, Plant City, FL 33564
AS Asgrow Seed Co.., 7000 Portage Rd., Kalamazoo, MI 49001
FM Ferry-Morse Seed Co., Box 4938, Modesto, CA 95352-4938
HM Harris Moran Seed Co., 4511 Willow Rd., Suite 3, Pleasanton, CA 94588
SU Sunseeds, P. O. Box 1438 Hollister, CA 95023
Yellow summer squash variety trial Spring 1996, Sanford, FL.
Yield (bu/A)
Tot. Early Total Avg. wt/fruit (lb)
Supplier mkt. mkt. culls Total Early Cull Notes
Monet FM 924 az 192 ab 40 c .43 a-f .33 a-c .38 a-c good appearance
Superpik HM 824 ab 179 a-c 102 bc .43 a-f .36 a-d .29 be straight, good color
Multipik HM 816 ab 218 a 53 c .42 b-f .33 a-d .26 c good appearance, straight
General Patton AS 784 ab 182 a-c 61 bc .50 ab .32 a-d .35 bc good color, slightly ridged
Seneca Supreme AG 782 ab 221 a 50 c .36 e-f .34 a-d .38 a-c straight, good appearance
Dixie AS 756 a-c 124 b-f 95 bc .43 a-f .34 a-d .37 a-c color ok, poor appearance
Prelude AS 746 a-c 141 a-e 147 bc .47 a-d .35 a-d .30 be some off type plants
Supersett HM 704 b-d 156 a-d 53 c .45 a-e .36 a-d .32 bc good appearance
Sunex 9602 SU 704 b-d 108 b-g 108 bc .39 c-f .29 c-d .27 bc dark yellow, ridged
Lemondrops AS 669 b-d 155 a-d 40 c .52 a .43 a .42 a-c crooked, light green, ridged
Sunex 9602 AG 650 b-d 95 b-g 104 bc .37 d-f .30 b-d .29 be ridged
Sunex 9657 SU 621 b-e 43 e-g 83 bc .51 ab .41 ab .52 a slightly ridged
19XPH 1780 AS 614 b-e 88 c-g 127 be .44 a-e .25 d .37 a-c poor shape, green, ridged
Sunex 9651 SU 611 b-e 146 ab 102 bc .48 a-c .38 a-c .40 a-c straight, green
Picasso FM 561 c-e 183 a-c 109 bc .44 a-e .37 a-d .32 bc straight, good appearance
Sunre 9657 AG 528 de 45 e-g 66 bc .48 a-c .35 a-d .37 a-c good color, rough
s AS 516 de 62 d-g 170 b .34 f .30 b-d .33 be It. yellow
9613 SU 514 de 19 g 465 a .42 b-f .36 a-d .44 ab It. green, shape not marketable
HMX 4716 HM 423 e 26 fg 88 bc .40 c-f .27 c-d .39 a-c pale yellow, ridged
zMean separation in columns by Duncan's Multiple Range test, 5% level.
YFirst four harvests May 17, 20, 22, and 24.
Table 2. Temperature and rainfall at CFREC-Sanford
growing season (March 26 June 10).
during the 1996 spring
Daily temperature (OC)
Date Maximum Minimum (inches)
March 26 30 81 62 4.23*
April 1 30 90 64 1.86*
May 1 31 93 72 4.22
June 1 10 91 73 1.21
Total 11.52
*5.27 inches of the 6.09 were recorded between March 28 and April 2.
Table 1.
HISTORIC NOTE
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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.
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