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Group Title: NFREC Research Report - University of Florida Institute of Food and Agricultural Sciences ; 91-9
Title: Seedless watermelon cultivar evaluation, spring 1990
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Permanent Link: http://ufdc.ufl.edu/UF00074382/00001
 Material Information
Title: Seedless watermelon cultivar evaluation, spring 1990
Series Title: NFREC research report
Physical Description: 7 leaves : ; 28 cm.
Language: English
Creator: Snell, J. M
Olson, Stephen Michael
North Florida Research and Education Center (Quincy, Fla.)
Publisher: North Florida Research and Education Center
Place of Publication: Quincy Fla
Publication Date: 1991
 Subjects
Subject: Watermelons -- Varieties -- Florida   ( lcsh )
Watermelons -- Yields -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: J.M. Snell and S.M. Olson.
General Note: Caption title.
Funding: Research report (North Florida Research and Education Center (Quincy, Fla.)) ;
 Record Information
Bibliographic ID: UF00074382
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 85612432

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        Page 1
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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







A/!- North Florida Research and Education Center
IFAS, University of Florida
/-f Route 3 Box 4370
Quincy, FL 32351


NFREC Research Report 91-9

Seedless Watermelon
Cultivar Evaluation, Spring 1990

J. M. Snell and S. M. Olson
Sr. Biological Scientist and Associate Profesomfiral ;~ ,


.INTRODUCTION O'. 2 193S

/ unir: rs of pra
Production of seedless watermelons is not a new concept:-Some-ofjhe problem s of
seedless production include expensive seed, must use transplants, higher management level and
need to plant a portion of the field to normal varieties. Some of the benefits include high yields,
no seeds in melons and higher prices. Many new seedless cultivars are now offered. In a
cooperative trial with other research and education centers 30 seedless entries were evaluated
for production at NFREC, Quincy.


Materials and Methods

This evaluation was conducted at the North Florida Research and Education Center on
an Orangeburg loamy fine sand soil. Seed were planted on February 19, 1990 into 1 1/2 in. X
1 1/2 in. expanded polystyrene flats. Transplants were placed in the field on March 28, 1990.
Plant spacing was 3 ft. in row X 10 ft. between rows. The watermelons were grown with black
polyethylene mulch and trickle irrigation. Total fertilizer applied was 117-36-117 lb/A N-P205-
K20. Weeds, insects and diseases were controlled with timely applications of registered chemical
products.

This evaluation included 30 entries (Table 1) of commercially available or experimental
seedless watermelon cultivars. Standard (seeded) watermelons were planted as pollinators with
1 row per 2 rows of seedless watermelons. Plots were 1 row X 36 ft. with 4 replications in a
randomized complete block design. Plots were harvested 3 times from June 8 June 22, 1990.
Watermelons were weighed, percent soluble solids were measured and ratings were made for
flesh color, hollow heart and hard seed content.





Results

Table 2 is a listing of yield (cwt/A), average fruit size (lb), percent soluble solids and
ratings for flesh color, hollow heart and hard seed content. There were few significant
differences in yield for most entries. Yields ranged from 341.6 cwt/A ('Tiffany') to 646.7
cwt/A ('Ssupersweet 5244'). Percent soluble solids ranged from 11.8% ('Nova') to 14.4%
('CFREC 89-8'). None of the entries displayed intense red color. Most entries had severe
hollow heart and all contained some hard seed.





Table 1. Seedless watermelon cultivars and experimental triploids, fruit description, and seed source,
Spring 1990.


Entry Fruit Description Seed Source


CFREC 88-4



CFREC 88-7



CFREC 89-4



CFREC 89-6


CFREC 89-8



CFREC 89-10



CFREC 89-11



CFREC 90-1



CFREC 90-2



Crimson Trio


Blocky-elongated. Distinct very dark-
green stripe on dark-green background,
few with lighter background.

Oval. Thin, distinct dark-green stripe
on light-green background. Similar to
Queen of Hearts.

Oval. Distinct dark-green stripe on
light-green background. Similar to
Queen of Hearts.

Oval. Thin. distinct dark-green stripe
on medium-green background.

Oval. Thin, distinct dark-green stripe
on light-green background. Similar to
Queen of Hearts.

Oval. Indistinct, wide medium-green
stripe on light-green background.
Similar to Tri X-313.

Oval. Thin, distinct dark-green stripe
on light-green background. Similar to
Queen of Hearts.

Oval. Indistinct, wide, medium-green
stripe on light-green background.
Similar to Tri X-313.

Oval. Indistinct, wide medium-green
stripe on light-green background.
Similar to Tri X-313.

Oval. Indistinct, wide, medium-green
stripe on light-green background.
Similar to Tri X-313.


CFREC Leesburg



CFREC-Leesburg



CFREC-Leesburg



CFREC-Leesburg


CFREC-Leesburg



CFREC-Leesburg



NFREC-Leesburg



CFREC-Leesburg



CFREC-Leesburg



Northrup King





Table 1. (Continued).


Entry Fruit Description Seed Source


HMX 7924



HMX 7928


HMX 7932


Jack of
Hearts


King of
Hearts


Long Dragon


Nova


No. 157


No. 158


Queen of
Hearts


Scarlet Trio


Oval. Indistinct, wide, dark-green
stripe on light-green background.
Similar to Tri X-313.

Ova. Dark-green with indistinct
darker green lines.

Oval. Thin, distinct dark-green
stripe on light-green background.
Similar to Queen of Hearts.

Oval-round. Wide, indistinct
medium-green stripe on light-green
background.

Oval. Indistinct, wide, dark-green
stripe on light-green background.
Similar to Tri X-313.

Oval. Thin, distinct, dark-green
stripe on light-green background.
Similar to Queen of Hearts.

Round-oval. Distinct, very dark-
green stripe on medium-green
background.

Round-oval. Dark-green background
with darker green lines.

Round-ova. Very dark-green indistinct,
wide stripe on light-green background.

Oval. Distinct, dark-green stripe
on medium-green background.

Oval. Thin, distinct, dark-green
background. Similar to Queen of
Hearts.


Harris Moran



Harris Moran


Harris Moran


Petoseed



Petoseed


Sunseeds



Sakata



Sakata


Sakata


Petoseed


Northrup King





Table 1. (Continued).


Entry Fruit Description Seed Source


Ssupersweet
2532


Ssupersweet
4073


Ssupersweet
5032


Ssupersweet
5244


Ssupersweet
5344


Sunrise


Sun 90-6160


Tiffany


Tri X-313


Oval. Thin, distinct, dark-green
stripe on light-green background.
Similar to Queen of Hearts.

Oval-round. Wide, indistinct,
medium-green stripe on light-green
background.

Oval-round. Wide, indistinct,
medium-green stripe on light-green
background.

Oval. Indistinct, wide dark-green
stripe on light-green background.
Similar to Tri X-313.

Oval. Indistinct, wide dark-green
stripe on light-green background.
Similar to Tri X-313.-

Oval. Distinct, dark-green stripe
on medium-green background. Similar
to Queen of Hearts.

Oval. Distinct, narrow dark-green
stripe on medium-green background.
Yellow flesh.

Round-oval. Wide, indistinct, dark-
green stripe on medium-green background.

Oval. Indistinct, wide medium-green
stripe on light-green background.


Abbott & Cobb



Abbott & Cobb



Abbott & Cobb



Abbott & Cobb



Abbott & Cobb


American Sunmelon


Sunseeds



Asgrow


American Sunmelon







Table 2. Yield and fruit characteristics for seedless watermelon, Spring 1990.


Average Soluble Ratings
Yield Fruit Wt Solids
Entry Source (cwt/A) (Ib) (%) -Colorz Heart Seed"



Ssupersweet 5244 Abbott & Cobb 646.7 aw 17.6 b-d 12.8 f-i 2.45 de 3.00 a-e 0.20 e
'Crimson Trio Northrup King 615.6 ab 16.9 b-e 13.1 d-h 2.92 a-d 3.18 a-d 0.45 c-e
HMX 7924 Harris Moran 591.1 a-c 17.6 b-d 13.6 a-g 2.33 e 2.70 c-e 0.78 c-e
Ssupersweet 5344 Abbott & Cobb 578.2 a-c 17.4 b-d 12.9 d-h 2.83 a-d 3.58 a-c 0.28 e
HMX 7932 Harris Moran 549.0 a-c 13.3 f-h 12.3 hi 3.02 ab 1.48 de 2.25 a
------------------------------------------------------------------------------------------------------------------------------
CFREC 88-7 CFREC 548.3 a-c 16.0 a-c 14.3 ab 2.88 a-d 3.53 a-c 0.78 c-e
Jack of Hearts Petoseed 545.7 a-c 16.2 b-e 12.9 e-h 2.95 a-c 4.83 a 0.58 c-e
CFREC 90-1 CFREC 528.1 a-c 16.4 b-e 13.8 a-f 2.78 b-e 3.33 a-d 0.40 de
CFREC 89-10 CFREC 513.2 a-c 18.2 be 13.6 a-g 2.70 b-e 3.60 a-c 0.38 de
CFREC 90-2 CFREC 511.2 a-c 16.6 b-e 13.5 a-g 2.88 a-d 4.83 a 0.78 c-e

CFREC 89-6 CFREC 509.7 a-c 17.6 b-d 13.9 a-e 2.75 b-e 3.70 a-c 1.45 a-d
Nova Sakata 497.6 a-c 14.5 e-g 11.8 i 2.70 b-e 3.25 a-d 0.58 c-e
King of Hearts Petoseed 494.8 a-c 16.8 b-e 13.7 a-g 2.58 b-e 3.70 a-c 0.15 e
CFREC 89-11 CFREC 493.3 a-c 17.7 b-d 14.2 a-c 2.73 b-e 2.78 c-e 1.48 a-c
Tri-X 313 Amer. Sunmelon 489.3 a-c 16.1 c-e 13.3 b-h 2.65 b-e 3.88 a-c 0.43 c-e

Queen of Hearts Petoseed 485.7 a-c 15.3 d-f 13.2 b-h 2.95 a-c 3.90 a-c 0.45 c-e
Long Dragon Sunseeds 485.2 a-c 12.7 g-i 12.9 d-h 2.88 a-d 3.90 a-c 0.20 e
Ssupersweet 2532 Abbott & Cobb 478.3 a-c 16.3 b-e 13.8 a-f 2.65 b-e 3.48 a-c 0.40 de
No. 157 Sakata 461.2 a-c 12.9 g-i 12.8 f-i 2.95 a-c 3.23 a-d 0.28 e
Sunrise Amer. Sunmelon 460.3 a-c 16.5 b-e 13.5 a-g 2.70 b-e 4.25 a-c 0.40 de
-----------------------------------------------------------------------------------------------------------------------------









Table 2. Continued


Average Soluble Ratings
Yield Fruit Wt Solids
Entry Source (cwt/A) (lb) (%) Colorz Heart Seedx

CFREC 89-4 CFREC 458.4 a-c 17.6 b-d 13.9 a-e 2.58 b-e 4.03 a-c 1.93 ab
HMX 7928 Harris Moran 453.6 a-c 14.9 e-g 13.7 a-g 2.53 c-e 1.28 e 0.65 c-e
Ssupersweet 5032 Abbott & Cobb 445.8 a-c 18.6 ab 13.1 c-h 2.70 b-e 3.85 a-c 0.28 e
Scarlet Trio Northrup King 419.9 a-c 15.8 c-e 13.8 a-f 2.88 a-d 4.45 a-c 0.70 c-e
CFREC 88-4 CFREC 414.3 a-c 20.4 a 13.5 a-g 2.45 de 2.83 b-e 0.38 de
----------------------------------------------------------------------------------------------------------
No. 158 Sakata 392.4 a-c 15.6 de 13.0 d-h 2.58 b-e 4.08 a-c 0.25 e
Sun 90-6160 Sunseeds 389.1 a-c 10.9 i 12.8 f-i ---- 3.95 a-c 1.10 b-e
CFREC 89-8 CFREC 378.7 be 15.8 c-e 14.4 a 3.28 a 4.20 a-c 0.73 c-e
Ssupersweet 4073 Abbott & Cobb 370.9 be 12.1 hi 12.6 g-i 2.58 b-e 4.30 a-c 0.83 c-e
Tiffany Asgrow 341.6 c 16.9 b-e 14.0 a-d 2.65 b-e 4.75 ab 0.73 c-e


zScale 1 to 5; 5 = most intense red color.
yO = no separation of flesh, 1 = 1-5 mm separation, 2 = 6-10 mm, 3 = 11-20 mm, 4 = 21-30 mm, 5
0" = no hard seed. 1 = 1 or 2 hard seed, 2 = 3-5 hard seed, 3 = 6-15 hard seed, 4. = 15-150 seed, 5
"Mean separation in columns by Duncan's Multiple Range Test, 5% level.
'Yellow fleshed melon.


= 30+ mm.
= fully seeded.




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