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of Florida

qa-7

-Cut Flower Hybrid Lily Cultivar Evaluations Report

Michael R. Evans'

University of Florida/IFAS
Gulf Coast Research and Education Center
5007 60d Street, East, Bradenton FL 34203

Bradenton GCREC Research Report BRA1992-7

April 1992

Introduction

As part of the University of Florida cut flower research program, hybrid lily cultivars were evaluated for

suitability for production in Central and South-Central Florida. Cultivar evaluations were based upon days

required to develop colored buds, plant height and bud counts. Fresh bulbs, from the current year's

production, are available for use after the first of the year and are usually used for late winter and spring

production. Frozen lilies, which have been stored in moist peat at approximately 2Ef F to retard shoot

growth, are used for late fall and early winter production. Because fresh lily bulbs generally perform better

than frozen lily bulbs, evaluations to determine the suitability of cultivars for production using both bulb types

were conducted.
Cultural Information

Frozen hybrid lily bulbs were received on December 27, 1990 and planted on January 3, 1991. Bulb sizes

were 5 6 and 7 8 inches for asiatic and oriental hybrids, respectively. Plant beds were composed of a

sandy soil (EauGallie fine sand) raised to a height of approximately 8 inches and 39 inches across. Beds

were fumigated with methyl bromide:chloropicrin and allowed to remain undisturbed for 2 weeks before

planting. Prior to planting, a granular 6-6-6 fertilizer was applied to the soil surface at a rate of 2 Ibs/100ft2.

Bulbs were planted on 4 inch centers and 4 inches deep. Central Science
Library

r] r 1982
1 Assistant Professor and Extension Floriculture Specialist

University of Florida

qa-7

-Cut Flower Hybrid Lily Cultivar Evaluations Report

Michael R. Evans'

University of Florida/IFAS
Gulf Coast Research and Education Center
5007 60d Street, East, Bradenton FL 34203

Bradenton GCREC Research Report BRA1992-7

April 1992

Introduction

As part of the University of Florida cut flower research program, hybrid lily cultivars were evaluated for

suitability for production in Central and South-Central Florida. Cultivar evaluations were based upon days

required to develop colored buds, plant height and bud counts. Fresh bulbs, from the current year's

production, are available for use after the first of the year and are usually used for late winter and spring

production. Frozen lilies, which have been stored in moist peat at approximately 2Ef F to retard shoot

growth, are used for late fall and early winter production. Because fresh lily bulbs generally perform better

than frozen lily bulbs, evaluations to determine the suitability of cultivars for production using both bulb types

were conducted.
Cultural Information

Frozen hybrid lily bulbs were received on December 27, 1990 and planted on January 3, 1991. Bulb sizes

were 5 6 and 7 8 inches for asiatic and oriental hybrids, respectively. Plant beds were composed of a

sandy soil (EauGallie fine sand) raised to a height of approximately 8 inches and 39 inches across. Beds

were fumigated with methyl bromide:chloropicrin and allowed to remain undisturbed for 2 weeks before

planting. Prior to planting, a granular 6-6-6 fertilizer was applied to the soil surface at a rate of 2 Ibs/100ft2.

Bulbs were planted on 4 inch centers and 4 inches deep. Central Science
Library

r] r 1982
1 Assistant Professor and Extension Floriculture Specialist

University of Florida

A fungicide soil drench was applied immediately after planting. 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 and drip tube irrigation system was covered with a white-on-black

polyethylene film. Temperature and rainfall conditions for the winter and spring of 1991 are listed in Table

4. Fresh bulbs were received on March 10, 1992 and were planted on March 12, 1992. All other cultural

conditions were the same as described for frozen bulbs.

Results and Discussion

Asiatic hybrid lilies are listed in Table 1 along with bud counts, plant height, days to colored buds, and flower

color. There was significant variation between the cultivars evaluated. Bud counts ranged from 0 to over 11.

Average days to colored buds ranged from 33 to 73 days, and heights ranged from 12.8 to 37.6 inches

(excluding pixie types). Best asiatic hybrid lilies using frozen bulbs are listed by color in Table 3.

No oriental lily cultivar evaluated performed well from frozen bulbs. Growth was weak, non-uniform and most

flower buds aborted prior to flowering. Data was not taken due to the poor performance.

Asiatic hybrid lilies evaluated using fresh bulbs are listed in Table 2 along with bud counts, heights, days

to colored buds, and flower color. Best asiatic hybrids are listed by color in Table 3. Most asiatic lilies

produced from fresh bulbs had higher bud counts and required longer to reach the colored-bud stage than

those produced from frozen bulbs. The effect of bulb type on heights depended upon cultivar with some

being taller when produced from fresh bulbs while others were taller when produced from frozen bulbs. Most

cultivars reached the colored-bud stage sooner when produced from frozen bulbs as compared to fresh

bulbs. Further, some cultivars that performed poorly as frozen bulbs, performed well as fresh bulbs. For

example, 'Enchantment' had a bud count of only 2.4 as a frozen bulb and 7.0 when produced from fresh

bulbs. It should be noted that the frozen bulbs used in this evaluation had been stored for approximately

1 year. Frozen lily bulbs that have been stored for shorter periods of time, such as would be used for a late-

3

spring crop, may perform significantly better than the frozen bulbs in this trial.

When produced form fresh bulbs, oriental hybrid lilies performed better as compared to frozen bulbs. Bud

count, height, days to colored buds, and flower color for oriental hybrid lilies that were evaluated are listed

in Table 2. In general, oriental lilies required longer to produce and had lower bud counts than asiatic hybrid

lilies. However, as with asiatic hybrid types, there was significant variation between cultivars. For example,

'Primeur' formed an average of 8.5 flower buds while 'White Sheen' formed only 3.0 buds.

Although cultural conditions, bulb quality, length of bulb storage, weather conditions, and bulb size can all

affect the performance of hybrid lilies, it is clear that cultivar selection should also be considered carefully

as a first step to producing a high quality hybrid lily crop.

Table 1. Winter 1991 Asiatic Hybrid Lily Cultivar Evaluations Frozen Bulbsz

Average
Average Average Days to Bud
Bud Count Height Color Primary Flower
Cultivar (inches) Color

Admiration 7.0 20.5 44.6 white, with brown
spots
Aladdin 3.8 21.7 67.8 yellow

Alperglow -
Amorette 2.0 19.3 42.4 orange,yellow

Apeldorn 4.4 24.1 62.4 orange
Apollo 6.6 14.8 62.2 white
Artisto 5.2 16.0 33.0 yellow with brown
spots
Avignon 4.0 24.0 54.0 burnt orange

Butter Pixie 5.0 18.4 58.2 yellow

Cadillac 5.2 26.8 62.6 red with black spots

Chicago 4.4 26.8 59.4 yellow with brown
spots
Chinook 7.0 28.8 63.2 salmon

Cocktail 7.2 23.0 51.6 pink

Compass 2.0 18.8 59.6 orange

Connecticut King 4.2 21.0 59.0 yellow with brown
spots
Content 2.6 16.0 44.6 orange with brown
spots
Cote D'Azur 4.8 22.6 53.8 dark rose

Corina 3.6 19.2 65.2 red

Crescendo 7.2 28.9 62.0 yellow with brown
spots
Crimson Pixie -

Dark Beauty 3.4 26.2 68.4 pink, yellow

Dawn Pixie 2.2 14.2 54.4 dark pink, yellow with
black spots

Dominator 4.4 33.1 35.2 orange

Donna 6.0 20.4 60.0 violet

Dream 3.8 21.4 45.6 white

Dreamland 5.0 22.9 68.6 yellow

Elfin Sun 2.4 15.4 48.0 cream with brown
spots
Enchantment 2.4 19.7 60.4 orange, separated
petals
Endeavor 3.0 22.4 59.6 orange, red

Eurovision 4.4 23.7 59.8 dark orange with
black spots
Fair -

Festival 6.0 30.1 68.2 yellow, brown
orange
Fiesta Gitana 3.8 23.0 57.2 orange, red

Flaming Star 5.2 25.5 56.2 dark orange, black
spots
Florence 5.0 32.0 73.0 yellow, brown spots
Flower Song 2.0 14.8 56.0 yellow, brown spots

Gladiator 3.4 22.8 54.4 red

Golden Melody 11.4 28.5 62.6 yellow, brown spots

Grand Paradiso 3.8 27.2 66.6 burnt orange

Grand Cru 3.4 25.1 60.8 yellow,orange

Grandeur 2.2 25.1 57.4 yellow, brown spots

Horizon 7.0 12.8 55.4 orange

Jazz 4.6 24.5 55.6 dark red to scarlet

Jolanda 6.6 31.9 64.0 orange

L.D. Rose 6.6 18.4 40.0 rose, black spots

La Toya 1.8 28.3 57.2 violet

Lady Killer 5.0 27.5 60.8 orange, brown spots

Lemon Pixie 2.2 12.6 57.2 yellow

Lily Sinai 2.6 18.7 52.4 light orange

Love Song -

Los Angeles 6.2 34.3 56.0 white, pink, brown
spots
Magic Eye 4.4 25.5 66.0 pink, yellow, white

Matchless 7.2 23.9 56.6 orange, petals
separated
Medallion -

Mercedes -

Mont Blanc 4.8 22.8 60.2 white

Monte Rosa 3.8 22.3 62.0 pink, yellow

Montreux 5.8 26.2 67.2 rose, brown spots

Nice 7.4 27.8 59.2 rose, yellow

Nivea 4.2 28.6 63.8 white

Optima Forma 2.8 21.5 57.7 yellow

Orange Pixie

Orange Tiger

Parisienne 6.0 21.9 45.0 rose, white, black
spots
Peach Blush 3.8 20.4 54.4 pink

Peach Pixie -

Polyanna 6.6 29.2 65.0 dark and light yellow

Prominence 2.6 16.4 56.6 red, black spots

Pink Pixie 4.0 26.5 53.8 pink, white, brown
spots
Pink Tiger 5.4 35.8 62.0 pink, white, yellow

Purple Sensation -

Red Carpet -

Red Knight 6.2 26.1 56.4 red, black spots

Red Tiger 11.4 33.0 61.6 dark orange, black
spots
Rouge Pixie 2.4 10.3 43.2 orange

Roma 4.8 22.6 53.8 cream

Rosamunda 7.2 21.3 45.8 pink

Rose Delight 3.6 23.2 62.2 rose, white

Rosefire 3.6 22.0 56.0 orange,yellow

Rosita 1.4 21.9 47.4 pink

Rosywings 5.2 26.5 67.4 dark rose

Ruby Pixie 3.2 9.5 56.0 red

Salmon Beauty 7.6 32.3 62.2 salmon, brown spots

San Francisco 6.2 29.8 63.4 yellow, brown spots

Selina 5.0 29.5 57.6 pink, brown spots

Snowstar 7.6 26.9 60.2 white, yellow
Solo Mio

Sorbet 2.0 18.5 60.8 purple, white

Star Pixie 2.3 12.2. 55.2 orange

Sterling Star 3.4 26.4 56.8 white, brown spots

Sunray -

Symphony 5.2 16.1 42.4 yellow
Talent 3.8 20.0 59.2 dark orange, brown
spots
Tamara 4.0 22.1 49.6 pink

Treasure -

Unique 5.0 29.8 62.0 white, rose

White Tiger 4.2 28.0 56.0 white
Yellow Blaze -

Yellow Tiger 5.4 37.6 73.0 yellow, brown spots

Zephyr 4.4 25.9 58.6 light rose, black spots

z Descriptions are for cultivars produced under conditions described under the cultural information
section and under the prevailing weather conditions during production. An "-" indicates that plants
failed to flower.

Table 2. Spring 1991 Oriental and Asiatic Hybrid Lily Cultivar Evaluations Fresh Bulbsz
Average
Average Average Days to Bud
Bud Count Height Color Primary Flower
Cultivar (inches) Color

Oriental Hybrid Lilies

Auratum Othello 6.4 29.0 94.0 white, yellow

Casa Blanca 2.8 26.0 93.5 white

Chiffon ___

Everest 5.0 28.0 98.0 white

Gold Stripe 4.0 24.0 87.5 white, yellow
Impressive -

Journey's End 5.4 22.7 93.0 dark pink

Lareve 3.0 17.6 64.0 pink, yellow
Mona Lisa 2.3 14.2 72.6 pink, white
Olivia -

Omega_ _

Primeur 8.5 18.6 64.6 white

Rubrum __

Sante _-

Sans Souci 6.0 23.7 94.5 pink, white
Stargazer 6.2 25.2 88.5 pink, white

Trance 6.0 19.2 58.3 pink, white

Uchida- _

Valentino __

White Sheen 3.0 15.7 69.0 white

Asiatic Hybrid Lilies

Abisto 5.3 20.1 44.8 light yellow, browns
spots

Admiration 3.6 18.1 49.4 white, brown spots

Aladdin 6.8 23.4 70.2 yellow, red spots

Amorette 7.6 19.4 41.2 orange,yellow

Apollo 9.8 19.5 64.8 white

Butter Pixie 2.8 13.5 63.8 yellow

Chicago 4.3 20.9 60.0 yellow, brown spots

Chinook 7.8 38.7 74.0 salmon

Cocktail 14.8 27.0 57.0 pink

Colosseo 3.8 27.7 56.0 pink, yellow, brown
spots
Compass 5.0 18.7 57.6 orange

Connecticut King 8.0 25.2 62.0 yellow, brown spots

Content 6.4 16.5 47.2 orange, brown spots
Cote D'Azur 8.4 19.0 55.8 dark rose

Corina 5.6 27.3 62.0 red

Crescendo 6.8 25.9 64.4 yellow, brown spots

Dandy 4.8 23.3 55.0 light pink

Dawn Pixie 2.8 14.4 57.8 dark pink, yellow,
black spots
Delta 8.6 31.0 62.4 yellow, brown

Dominator 10.4 20.6 44.2 orange

Donna 7.4 23.4 67.8 pink

Dream 6.4 22.7 49.2 white

Dreamland 11.0 28.6 65.2 yellow

Electric 6.3 33.5 57.0 orange, pink, brown
spots
Elfin Sun 6.2 18.7 52.6 cream with brown
spots
Enchantment 7.0 22.9 61.4 orange, petals
separated
Endeavor 2.0 18.3 55.3 orange, red

Festival 5.8 42.5 71.0 yellow, brown
orange
Flaming Star 6.8 26.1 58.2 dark orange, black
spots
Fuego 2.8 26.3 58.6 orange,yellow

Golden Melody 8.8 25.5 64.0 yellow, brown spots

Grand Paradiso 3.2 26.2 68.5 burnt orange

Grand Cru 5.8 30.6 60.0 yellow,orange

Horizon 7.0 11.5 55.4 orange

Jazz 4.5 21.0 55.3 red

Jolanda 4.8 25.3 64.6 orange

L.D. Rose 5.0 26.9 46.0 rose, black spots

Lady Killer 8.8 28.0 56.0 orange,brown spots

Lemon Pixie 3.5 13.3 58.0 yellow

Los Angeles 9.6 34.4 56.2 white, pink, brown
spots
Medallion 5.6 24.2 69.6 cream, brown spots

Menton 4.0 21.5 67.0 salmon

Mont Blanc 5.4 21.3 62.0 white

Montreux 7.2 25.0 69.2 rose, brown spots

New Yellow 8.2 22.2 61.7 light yellow, dark
yellow, brown
Nice 6.2 22.9 60.4 rose, yellow

Orange Pixie 3.4 11.5 52.2 orange, brown spots

Orange Princess 7.5 14.4 49.0 orange, brown spots

Parisienne 4.8 19.4 47.0 pink, white, brown
spots
Peach Pixie 5.7 14.7 55.0 pink and yellow mix

Polka 6.4 12.4 52.8 orange, brown spots
Polyanna 6.2 32.8 69.0 dark yellow, light
yellow
Prominence 7.6 16.5 61.6 red, black spots

Pink Pixie 4.2 16.6 56.8 pink, white, brown
spots
Purple Sensation 5.8 23.4 64.4 purple

Red Carpet 4.6 17.7 54.0 red

Rouge Pixie 5.6 11.0 42.4 orange

Roma 4.4 23.3 72.2 cream

Rose Delight 4.4 30.5 63.2 rose, white

Rosefire 2.8 16.2 56.6 orange,yellow

Rosita 2.8 24.7 57.6 pink

Salmon Beauty 7.8 30.2 68.2 salmon, brown spots
Sancere 6.2 22.0 62.0 white, no spots
Selina 7.2 31.8 58.2 pink, brown spots
Snow Star 7.2 25.2 60.4 white, yellow
Star Pixie 6.0 18.2 53.8 orange
Sterling Star 6.8 30.1 58.0 white, brown spots
Strocco 7.8 26.6 57.4 dark pink, light pink,
brown spots
Sunray 5.4 20.9 61.0 yellow, brown spots
Unique 9.6 33.9 62.0 white, rose
White Cloud 9.6 24.0 62.2 white, brown spots
Yellow Blaze 5.6 21.9 84.4 yellow, brown spots
z Descriptions are for cultivars produced under conditions described under the cultural information
section and under the prevailing weather conditions during production. An "-" indicates that plants
failed to flower.

Table 3. Best Hybrid Asiatic Culivars For Specific Flower Colors Using Frozen and Fresh
Bulbsz
Dominant Flower Frozen Bulbs Fresh Bulbs
Color
White Snowstar, Admiration Dream, Sancere, Snowstar,
Sterling Star,
White Cloud

Cream Roma Medallion
Yellow Polyanna, Crescendo, Golden Aladdin, Connecticut King,
Melody, Crescendo, Delta, Dreamland, Golden
San Francisco Melody, Polyanna

Orange Jolanda, Matchless, Flaming Star, Dominator, Enchantment, Flaming
Lady Killer, Red Tiger Star, Lady Killer,
Red Red Knight, Cadillac Corina, Prominence
Rosamunda, Parisienne, Cocktail, Cocktail, Donna, Montreux, Selina,
Rose/Pink Donna, Nice, Strocco, Unique
Salmon Salmon Beauty, Chinook Chinook, Salmon Beauty
Mixed Los Angeles, Festival Electric, Los Angeles

z Descriptions are for cultivars produced under conditions described under the cultural information
section and under the prevailing weather conditions during production. Not all cultivars were tested
as both frozen and fresh bulbs. Therefore, cultivars listed in this table were those that performed
best from each bulb type for those cultivars tested.

Table 4. Temperature (degrees farenheit) and Rainfall (inches) Figures for Winter and Spring
1991z
High Temperature Low Average
Month Temperature Temperature Rainfall
January 77 57 67 3.79
February 77 53 65 1.20
March 79 57 68 3.96
April 85 63 74 5.31
May 90 70 80 9.34
June 91 72 82 4.15
z Temperature and rainfall records were taken from: Temperature and Rainfall Report for 1991, C.D.
Stanley, Bradenton GCREC Research Report BRA1992-2, February 1992, Gulf Coast Research and
Education Center, Bradenton FL.