Table 1. Display solution chlorine and bacteria levels, internal flower stem bacteria levels, and/or vase life of flowers held in the display solutions purchased from nine supermarket stores using FloraFresh.

 

 

 

Flower purchased

Display solution

chlorine (ppm)

Display solution bacteria (CFU/ml)

 

Internal stem bacteria (CFU/gram)

 

Vase life in water

(days)

 

Vase life in

flower food (days)

 

 

 

ID

 

 

 

 

 

 

 

‘Katharina’ rose

0

2,660,000

100,000

2.5

2.0

1

 

 

 

 

 

 

 

‘Freedom’ rose

0

3,610,000

129,000

4.4

7.9

2

 

 

 

 

 

 

 

‘Orchestra’ rose

0

384,000

15,200

4.4

8.5

3

 

 

 

 

 

 

 

‘Vendela’ rose

0

2,945,000

37,000

5.3

10.7

4

 

 

 

 

 

 

 

Mini rose

0.5

85

278,000

-

-

5

 

 

 

 

 

 

 

Carnation

2.0

1,950

883,000

-

-

6

 

 

 

 

 

 

 

Alstroemeria

0

3,850,000

4,750,000

-

-

7

 

 

 

 

 

 

 

Rose

0

5,800,000

6,100,000

-

-

8

 

 

 

 

 

 

 

Rose (bud vase)

0

3,850,000

5,650,000

-

-

9

 

 

 

 

 

 

 

‘Freedom’ rose

0

7,100,000

60,950,000

5.3

8.7

10

 

 

 

 

 

 

 

Alstroemeria

2.0

<10

2,700,000

-

-

11

 

 

 

 

 

 

 

‘Vendela’ rose

0

2,100,000

95,000,000

5.9

8.8

12

 

 

 

 

 

 

 

Alstroemeria

0

195,000

49,500,000

--

-

13

 

 

 

 

 

 

 

‘Freedom’ rose

0

3

45,000,000

-

-

14

 

 

 

 

 

 

 

Chrysanthemum

0

51,000

14,000,000

-

-

15

 

 

 

 

 

 

 

‘Freedom’ rose

0

780,000

2,700,000

5.3

10.0

16

 

 

 

 

 

 

 

Alstroemeria

0

230,000

27,700,000

-

-

17

 

 

 

 

 

 

 

Carnation

0

650,000

139,000,000

-

-

18

 

 

 

 

 

 

 

Alstroemeria

0

40,000

179,000,000

-

-

19

 

 

 

 

 

 

 

‘Freedom’ rose

1.0

6

940,000

7.7

11.5

20

 

 

 

 

 

 

 

Carnation

0

53

10,400,000

-

-

21

 

 

 

 

 

 

 

Average

-

1,631,000

30,700,000

5.1

8.5

-

 

WHOLESALER & RETAILER UPDATES

Title: Opening of cut Iris x hollandica flowers as affected by temperature,dry storage, and light


Advice:  Cut flowers of this iris can be stored for one week in water at 37F (3C) but only three days dry at this temperature.  Storing flowers at 33F (0.5C) was detrimental therefore indicating that this species is chill sensitive



Title:
Effect of antimicrobial compounds on cut Gerbera flowers: Poor relation between stem bending and numbers of bacteria in the vase water


Advice: Using germicides such as chlorine bleach alone had little effect in reducing stem (scape) bending in cut Gerbera flowers, and in some cases actually increased stem bending. Hence, there is not a direct relationship with microbe levels and stem bending. However, the addition of table sugar (sucrose) at 15 grams per liter (1.5%) counteracted any negative effects of germicides and decreased stem bending


Title:
Effects of Temperature on Some Senescence Parameters during Dry Storage of Cut Flowers of Gerbera ‘Suzanne’


Advice:  Some believe that gerbera cut flowers are chill sensitive and therefore should be stored at temperatures closer to 41F (5C), not down near 32F (0C).  In the research reported in this study, the best dry storage temperature was the lowest one tested, 35F (2C).