Table 1.  Rosetting percentages of lisianthus cultivars after exposure of seedlings to greenhouse or high temperaturesz, and vegetative flowering characteristics of lisianthus cultivars sown on 20 Dec. and produced in 11.5-cm square pots (0.65-L) with capillary mat irrigation.

 

 

Plant
ht
(cm)x

 

Flowers and buds (no.)x

Petal length (cm)x

Days to flower
(no.)x

 

Rosetted (%)y

Breaks (no.)x

Cultivar

Control

31°C

Basal

Lower

Florida Blue

0

0

38

4.4

3.0

61

5.1

142

Blue Lisa

8

100

32

3.0

3.4

40

4.6

131

Little Belle Blue

54

100

22

2.2

1.8

34

4.9

143

Mermaid Blue

21

100

24

6.0

1.0

47

5.0

139

LSD 0.05

 

 

6

1.6

2.2

14

0.5

6

zSeedlings were grown in a greenhouse at 28 to 33°C day and 13 to 15°C night (control), or 17-day-old seedlings were exposed to 31°C for 5 weeks in a growth chamber and then flowered in the greenhouse.

yPercentage of rosette or semirosette plants, n=24.

xVegetative and flowering characteristics were for nonrosetted control plants.  Values represent the means of five replications of single-plant experimental units arranged in a randomized complete-block design.