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Group Title: Research report - Bradenton Gulf Coast Research and Education Center - BRA1992-17
Title: University of Florida cut flower research program
CITATION PAGE IMAGE ZOOMABLE PAGE TEXT
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00067752/00001
 Material Information
Title: University of Florida cut flower research program specialty cut flower trials, 1991-1992
Series Title: Bradenton GCREC research report
Physical Description: 7 leaves : ; 28 cm.
Language: English
Creator: Evans, M. R ( Michael R )
Gulf Coast Research and Education Center (Bradenton, Fla.)
Publisher: Gulf Coast Research and Education Center
Place of Publication: Bradenton FL
Publication Date: 1992
 Subjects
Subject: Cut flowers -- Research -- Florida   ( lcsh )
Floriculture -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: Michael R. Evans.
General Note: Caption title.
General Note: "September 1992."
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Bibliographic ID: UF00067752
Volume ID: VID00001
Source Institution: Marston Science Library, George A. Smathers Libraries, University of Florida
Holding Location: Florida Agricultural Experiment Station, Florida Cooperative Extension Service, Florida Department of Agriculture and Consumer Services, and the Engineering and Industrial Experiment Station; Institute for Food and Agricultural Services (IFAS), University of Florida
Rights Management: All rights reserved, Board of Trustees of the University of Florida
Resource Identifier: oclc - 73476525

Table of Contents
    Copyright
        Copyright
    Introduction
        Page 1
    Cultural information
        Page 1
        Page 2
        Page 3
        Page 4
        Page 5
        Page 6
        Page 7
Full Text





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











UNIVERSITY OF FLORIDA CUT FLOWER RESEARCH PROGRAM
r\'

SPECIALTY CUT FLOWER TRIALS 1991-1992




Michael R. Evans1

Gulf Coast Research and Education Center
Bradenton, Florida

Bradenton GCREC Research Report BRA1992-17 September 1992
Marston Science-

Introduction A
APR 22 g993

As part of the University of Florida cut flower research program, potentialhwn uflowvr were evaluated
u"',vcflay Or -lOrida
during the 1991-1992 production season. A total of 21 cultivars of 11 species were evaluated, and all
material used in these trials were produced from seed.


Cultural Information


All plant materials were grown from seed and transplanted to the field after plants became established
(well formed root ball) in a Speedling plug tray #150 (1 1/2 inch square and 2 1/2 inches deep with 128
cells per tray). All evaluations were conducted under 25% shade at the Gulf Coast Research and Education
Center in Bradenton, FL. Plants were spaced on 6-inch centers on raised beds composed of a EauGallie
fine sand. The raised beds were 39 inches across and 8 inches high. Beds were fumigated with methyl
bromide:chloropicrin and allowed to remain undisturbed for 2 weeks. Prior to planting, Nutricote 13-13-13
(100 day formulation) was incorporated into the upper 2 inches of soil at a rate of 12 lbs per 100 ft2. Water
was supplied through a drip-tube irrigation system with 3 drip tubes placed on the soil surface along the
length of the beds at approximately 13 inches apart. The entire raised bed, with drip-tube irrigation.
system, was cover with white-on-black polyethylene film.



1 Assistant Professor and Extension Floriculture Specialist
2 The author wishes to thank Sakata Seed America, Inc., Royal Sluis, Inc., and Vaughan Seed Company
for donation of seed. Additional appreciation is extended to Florikan E.S.A. Corp. for donation of irrigation
equipment.











UNIVERSITY OF FLORIDA CUT FLOWER RESEARCH PROGRAM
r\'

SPECIALTY CUT FLOWER TRIALS 1991-1992




Michael R. Evans1

Gulf Coast Research and Education Center
Bradenton, Florida

Bradenton GCREC Research Report BRA1992-17 September 1992
Marston Science-

Introduction A
APR 22 g993

As part of the University of Florida cut flower research program, potentialhwn uflowvr were evaluated
u"',vcflay Or -lOrida
during the 1991-1992 production season. A total of 21 cultivars of 11 species were evaluated, and all
material used in these trials were produced from seed.


Cultural Information


All plant materials were grown from seed and transplanted to the field after plants became established
(well formed root ball) in a Speedling plug tray #150 (1 1/2 inch square and 2 1/2 inches deep with 128
cells per tray). All evaluations were conducted under 25% shade at the Gulf Coast Research and Education
Center in Bradenton, FL. Plants were spaced on 6-inch centers on raised beds composed of a EauGallie
fine sand. The raised beds were 39 inches across and 8 inches high. Beds were fumigated with methyl
bromide:chloropicrin and allowed to remain undisturbed for 2 weeks. Prior to planting, Nutricote 13-13-13
(100 day formulation) was incorporated into the upper 2 inches of soil at a rate of 12 lbs per 100 ft2. Water
was supplied through a drip-tube irrigation system with 3 drip tubes placed on the soil surface along the
length of the beds at approximately 13 inches apart. The entire raised bed, with drip-tube irrigation.
system, was cover with white-on-black polyethylene film.



1 Assistant Professor and Extension Floriculture Specialist
2 The author wishes to thank Sakata Seed America, Inc., Royal Sluis, Inc., and Vaughan Seed Company
for donation of seed. Additional appreciation is extended to Florikan E.S.A. Corp. for donation of irrigation
equipment.










Common name: Dill Scientific name: Anethum graveolens
Cultivar(s): common dill

Fall/Winter Trial

Date seed sown: September 23, 1991
Date transplanted to plug tray: October 8, 1991
Date transplanted to field: November 1, 1991
Date of first flower: January 4, 1992

Winter/Spring Trial

Date seed sown: December 3, 1991
Date transplanted to plug tray: December 19, 1991
Date planted in field: January 21, 1992
Date of first flower: March 16, 1992


Seed were germinated under intermittent mist at approximately 700F.
Germination occurred after 3-5 days, and plant growth was rapid. Plants should be transplanted to the
field before they become root bound. From seeding to flower required approximately 100 days in both the
fall/winter and winter/spring trials. Continual cutting of flowering shoots resulted in numerous small
flowers and kept plants from becoming excessively tall. Postharvest longevity was approximately 7-10 days
in water.





Common name: Carthamus Scientific name: Carthamus tinctorius
Cultivar(s): Lasting White, Lasting Orange

Fall/Winter Trial

Seed supplier: Sakata
Date seed sown: September 21, 1991 (sown directly into field)
Date of first flower: November 30, 1991 (primary flower)
December 28, 1991 (secondary flowers)


Seed were sown directly into the field. Plants germinated after approximately 7 days. Although only 71
days were required from seed for the primary flower to open, approximately 100 days were required for
the secondary flowers to develop and open. Flowers were not marketable until the secondary flowers
showed color. Stem length averaged 32 inches and flower size was approximately 3/4 inch in diameter. The
major problem with these 2 cultivars was that the plants were not floriferous enough to contribute
significantly to bouquets or arrangements. New cultivars may offer greater potential for the future of this
species as a cut flower. Postharvest life of individual flowers was approximately 6 days in water.










Common name: Balloon flower


Scientific name: Platycodon grandiflorum

Cultivar(s): Hakone Blue and Fuji Mix

Fall/Winter Trial

Seed supplier: Sakata
Date seed sown: July 30, 1991
Date transplanted to plug tray: August 13, 1991
Date transplanted to field: October 8, 1991
Date pinched to 6 nodes: October 16, 1991
Date of first flower: November 6, 1991


Seeds germinated in approximately 14 days at 70F. Plants had a trailing growth habit with weak stems
that averaged 11 inches in length. Only 1 or 2 flowers opened per plant at any given time. Individual
flowers lasted 5-7 days in water.





Common name: Trachelium

Scientific name: Trachelium coeruleum

Cultivar(s): White Umbrella and Purple Umbrella

Fall/Winter Trial

Seed supplier: Sakata
Date seed sown: July 30, 1991
Date transplanted to plug tray: August, 20, 1991
Date transplanted to field: October 8, 1991
Date of first flower: May 15, 1992

Winter/Spring Trial

Seed supplier: Sakata
Date seed sown: December 3, 1991
Date transplanted to plug tray: January 9, 1992
Date planted in field: February 4, 1992
Date of first flower: June 2, 1992

Seeds germinated in 14 days at 700F. The days required to flower from seeding was 180 days. Stem length
averaged 36 inches for Purple Umbrella' and 32 inches for White Umbrella'. Postharvest longevity was
approximately 10 days in water. Trachelium is a long-day plant. Therefore, it will normally flower in the
summer in Florida. Some growers have found that lighting plants to provide a long day (i.e. mum lighting)
will result in winter flowering. However, lighting should be maintained through flowering.










Scientific name: Ranunculus asiaticus


Cultivar(s): Victoria Series consisting of Golden Yellow Shades, Orange Shades, Pink Shades, Rose
Shades, Scarlet Shades, White Shades and Yellow Shades

Fall/Winter Trial

Seed supplier: Royal Sluis
Date seed sown: August 14, 1991
Date transplanted to plug tray: September 12, 1991
Date transplanted to field: October 15, 1992
Date of first flower: January 15, 1992
First major flush of flowers: February 14, 1992


Seeds germinated in 14 days at 550F. Plants were grown on at 650F until planting into the field.
Ranunculus require cool temperatures. High temperatures inhibit germination and result in poor plant
growth. Plants flowered from January 15 through April 15. The majority of production occurred between
February 15 and April 1. In late April, plants began to deteriorate and flower quality became poor. Stem
lengths averaged 13 inches, and flower diameters were 2-3 inches.





Common-name: Japanese Thistle

Scientific name: Cirsium japonicum

Cultivar(s): Rose Beauty and Pink Beauty

Fall/Winter Trial

Seed supplier: Sakata
Date seed sown: July 30, 1991
Date transplanted to plug tray: August 8, 1991
Date transplanted to field: October 1, 1991
Date of first flower: December 17, 1991

Seeds germinated in 7 days at 700F. Plants flowered in 119 days after seeding. Flowers averaged 1 inch
in diameter, and stem length was approximately 36 inches. Postharvest longevity of individual flowers was
7-10 days in water. However, the spines on the leaves make handling this plant very difficult.


Common name: Ranunculus










Common name: Gomphrena, Globe Amaranth


Scientific name: Gomphrena globosa

Cultivar(s): Globe Amaranth Mixed

Winter/Spring Trial

Seed supplier: Vaughan Seed Co.
Date seed sown: January 9, 1992
Date transplanted to plug tray: January 23, 1992
Date transplanted to field: February 11, 1992
Date of first flower: March 25, 1992


Seeds germinated in 10 days at 70F. Plants flowered from seed in approximately 70 days. Flowering was
uniform, and stem lengths averaged 15 inches. However, stems were weak and foliar diseases were a
problem.





Common name: Veronica, Speedwell

Scientific name: Veronica spicata

Cultivar(s): spicata

Winter/Spring Trial

Seed supplier: Vaughan Seed Co.
Date seed sown: January 9, 1992
Date transplanted to plug tray: January 23, 1992
Date transplanted to field: February 11, 1992
Date of first flower: March 25, 1992

Seeds germinated in 14 days at 700F. Flowering occurred 75 days after seedling. Flower spikes were dark
blue and approximately 5 inches long. Stem length averaged 20 inches. Plants were variable with some
plants having tall, thick stems and others being shorter and weaker. If a few nodes were left behind after
cutting the primary shoot, axillary shoots developed and flowered. Flowers tended to loose turgidity after
being cut. When flowers regained turgidity, the flower spike often retained a curve. To minimize this
problem, place flowers in water immediately after cutting. Recut the stem under water. Provide support
to prevent the flowers from "flopping" during storage. Postharvest longevity was approximately 10 days
in water.










Common name: Sunflower


Scientific name: Helianthus annus

Cultivar(s): Sunbright

Winter/Spring Trial

Seed supplier: Sakata
Date seed sown: February 20, 1992
Date of first flower: April 25, 1992

Seed were sown directly into the field and germinated in 7 days. The first harvestable flowers developed
64 days after seedling. Plants were 50 inches tall at flowering. Flowers ranged from 4-7 inches in diameter.
Postharvest longevity was 10-14 days in water.





Common name: Craspedia, Golden Drumstick

Scientific name: Craspedia globosa

Cultivar(s): Goldstick

Winter/Spring Trial

Seed supplier: Vaughan Seed Co.
Date seed sown: January 9, 1992
Date transplanted to plug tray: January 23, 1992
Date transplanted to field: February 11, 1992
Date of first flower: April 28, 1992

Seeds germinated in 10 days at 700F. Plants flowered in 108 days from seed. Inflorescences were 1 to 1
1/4 inches in diameter. Stem length was 30-35 inches. Approximately 2 flowers were produced per plant.
The flowering period was spread throughout the spring and early summer (April May). A major flush of
flowers occurred in mid-May. Stems were strong and postharvest was excellent with flowers lasting for 14-
21 days. Flowers may be harvested when the first florets open. Additionally, flowers retain there form and
color when dried.










Common name: Yarrow, Achillea

Scientific name: Achillea filipendulina and A. millefolium

Cultivar(s): A filipendulina Cloth of Gold

A. millefolium: Summer Pastels
Cerise Queen
Winter/Spring Trial

Seed supplier: Vaughan Seed Co.
Date seed sown: January 9, 1992
Date transplanted to plug tray: January 23, 1992
Date transplanted to field: February 11, 1992
Date of first flower: April 22, 1992 (Cerise Queen)
April 25, 1992 (Summer Pastels)

Seed germinated in 10 days at 700F. 'Cerise Queen' and 'Summer Pastels' flowered in approximately
105 days from seed. Cloth of Gold failed to flower by the termination of the trials (July). Flowering time
was variable among plants, and approximately 50% of the plants failed to flower. Stem lengths averaged
23-25 inches for Cerise Queen' and 20-25 inches for Summer Pastels'. Postharvest longevity for yarrow
was approximately 7 days in water. When harvested, secondary flowers tended to lose turgidity and wilt.
To minimize this problem, place cut flowers immediately into warm water and recut stems under water.




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