uga & plant introductions, inc. ornamental plant breeding ... · uga & plant introductions,...
TRANSCRIPT
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UGA & Plant Introductions, Inc.
Ornamental Plant Breeding
Programs
Michael A. Dirr, Ph.D.
April 30, 2013
Tifton Turfgrass Conference
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Meatballs: Out with the Old!
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Azalea Meatballs: Why Oh Why?
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Dirr Garden 2012
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COLOR
COLOR
COLOR
COLOR
THE KEY INGREDIENT IN A NEW PLANT
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GREEN
is NOT a color
THE REALITY
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WHAT GROWERS/RETAILERS (AND GARDENERS)
CITE AS ESSENTIAL IN NEW PLANTS
Color
Early-season flowering
Reblooming
Compact, uniform branching
Fast to finish in a container
Can be pruned to schedule flowering to hit
target sales dates
Disease and insect resistance
Minimal chemical and physical inputs
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LANDSCAPERS TOP 10 PLANTS
NURSERY MANAGEMENT 27(8), 2011
1. Boxwood (deer
resistance?)
2. Viburnum
3. Hydrangea
4. Holly
5. Spirea
6. Azalea
7. Maple
8. Juniper
9. Dogwood
10. Knock Out® Rose
Surveyed 4,000 lawn & landscape leaders
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DOES THE CUSTOMER
KNOW WHAT’S NEW?
New alone without marketing is a lonely life.
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UGA Horticulture Farm
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PLANT INTRODUCTIONS, INC. . . THE
JOURNEY TO DATE Started in 2007
Breed great garden plants that offer Promised
Performance™
Equal opportunity plant breeders
Test on-site: propagation, container culture,
and in-ground
www.plantintroductions.com
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Crapemyrtle breeding at PII, 2012
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Crapemyrtle breeding at PII, 2012
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PLANT INTRODUCTIONS, INC. . . THE
JOURNEY CONTINUES
What to breed?
Listen intently to growers, gardeners, and
Bonnie. Women buy 70-80% of plants.
Where are the opportunities in the market?
Another rose, hydrangea, azalea, abelia,
crapemyrtle?
Lilacs, heat tolerant hydrangeas, small
flowering trees
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Crapemyrtle breeding at PII, 2012
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‘Red Magic’
flowering 7-29-12
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‘Moonlight Magic’
‘Midnight Magic’
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‘Purple Magic’
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‘Coral Magic’
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‘Plum Magic’
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There is no absolute methodology
Keep timely records
Walk the plants on a regular basis
Compare with the competition’s introductions
PII utilizes survey tape as a measure of
greatness; more ribbons, the better
All partners love and practice gardening
The final decision comes from the heart
HOW TO SUCCESSFULLY EVALUATE A
POTENTIAL INTRODUCTION
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Syringa: Remontant Saga
Bloomerang®
• A remontant lilac
• Did it resonate and sell? Yes!
• Is it a great plant ? ? ?
• New adaptation on the way
(Bloomerang® Dark Purple)
• Several breeders working on Syringa
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Missouri Botanical Garden
April 25, 2010
Coastal Maine
Botanical Garden
August 10, 2010
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$34.95 $24.95
September 18, 2012
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Objectives: heat tolerant, reblooming, disease-
free lilacs
Literature, The International Lilac Society, lilac
collections, USDA seed bank, seed companies
Source species and cultivars with those potential
traits and test in situ
Open-pollinated and controlled cross breeding
with appropriate parents
Accelerated growth in containers to produce
early flowering
SYRINGA BREEDING
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Syringa pubescens subsp. microphylla
reblooming selection from Schumacher seed
First year seedling
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Syringa: Remontant Saga
Bloomerang®
• A remontant lilac
• Did it resonate and sell? Yes!
• Is it a great plant ? ? ?
• New adaptation on the way
(Bloomerang® Dark Purple)
• Several breeders working on Syringa
Syringa oblata from Schumacher seed
Second year seedling
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Syringa evaluations at PII
October 6, 2012
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Syringa seedlings
November 2012
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Syringa
‘Red Pixie’ × Josée™
Foliage on 1st year
seedlings
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Cold damage
Remontant Hydrangea macrophylla Saga
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Bailey’s
Hydrangea macrophylla Endless Summer ®
changed the hydrangea market forever Keys to success: great marketing and a worthy
plant; 1.8 million spent before first plant sold
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‘Lady in Red’
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Testing for mildew resistance
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Twist-n-Shout™ and Endless Summer®
Bailey Nursery, Sauvie Island, OR, 8-24-12
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Twist ‘n Shout™
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BloomStruck™ (Twist-n-Shout™ derivative)
Original plant. 4 years old.
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Abelia ‘Rose Creek’ & ‘Canyon Creek’ received
AGM Award of Garden Merit from RHS in 2011
Currently, ~35 cultivars
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Abelia Eternal Sunshine™ in First Editions®
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Abelia parvifolia-03-09
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Barberries gone wild.
Considered invasive.
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Berberis thunbergii ‘Daybreak’
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Clethra ‘Roadside White’ & ‘Sixteen Candles’
‘Hummingbird’
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Clethra alnifolia fall color
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Clethra
‘Hummingbird’ × ‘Ruby Spice’
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Common name Isu Tree
Primarily native to Asia
12 species worldwide
Distylium racemosum and myricoides the most
common
Beautiful broadleaf evergreen foliage
Heat, drought, and wet soil tolerances
High insect and disease resistance
Sun and partial shade tolerance
Easy to propagate and grow
DISTYLIUM SPECIES
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Distylium Emerald Heights™
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Distylium ‘Vintage Jade’
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Distylium Coppertone™
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Distylium racemosum ‘Butterscotch’
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Gardenia cold hardy
improvements
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Heaven Scent™
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‘Double Mint’
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Hydrangea arborescens
species and ‘Annabelle’
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Improved Pink Lacecap
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Bella Anna™
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THE BELLA ANNA™ STORY
PII thought we hit the mother lode
Over 30 pink mopheads selected in 2008
Unfortunately, ultimate selection proved to be
weak-stemmed
There are leaf spot problems
Do we sulk? Or try to get it right?
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06 09
Pink Annabelle selections 2012
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Green-flowered selection
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Hydrangea paniculata
‘Grandiflora’
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Limelight™
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H. paniculata
Baby Lace™ and
selections at UGA
Late July
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SMALL-STATURED H. PANICULATA
Bobo® - Disaster in Dirr garden
Little Lime™ - Excellent
Bombshell™ - Difficult for growers
Baby Lace™ - Excellent, late flowering
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Spiraea thunbergii ‘Ogon’
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Spiraea thunbergii ‘Ogon’ first year seedlings
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Viburnum plicatum f. plicatum ‘Spellbound’
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11/02/12
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‘Mohawk’-11-03
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Viburnum Pearlific™
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Vitex agnus-castus
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‘Matt’s Blue’
‘Purpurea’
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In plant breeding, the journey never ends
because GOOD is the enemy of GREAT!