Don Stevens’
Effect of Temperature, Light, and Scoring on the Germination of Some Hardy Waterlily Seeds

Table 2. Effect of temperature, light and scoring on the germination of hardy waterlily seeds

Nymphaea

Temp

L/D

Scored

total

germinated

 

 

 

 

germinated (n)

 

 

 

 

 

 

 

 

n

n

%

3d

4d

5d

6d

7d

8d

9d

10d

11d

12d

13d

14d

15d

20d

28d

tetragona

22C

Light

no

15

15

100

0

2

4

7

2

0

0

0

0

0

0

0

0

0

0

(TET)

 

 

yes

15

9

60

0

0

0

4

4

0

0

0

0

0

1

0

0

0

0

 

 

Dark

no

15

15

100

0

0

1

1

5

8

0

0

0

0

0

0

0

0

0

 

 

 

yes

15

11

73

0

0

1

3

3

1

1

1

0

1

0

0

0

0

0

 

29C

Light

no

15

15

100

0

7

5

2

1

0

0

0

0

0

0

0

0

0

0

 

 

 

yes

15

5

33

0

2

3

0

0

0

0

0

0

0

0

0

0

0

0

 

 

Dark

no

15

15

100

0

0

4

5

2

3

1

0

0

0

0

0

0

0

0

 

 

 

yes

13

3

23

0

1

0

0

2

0

0

0

0

0

0

0

0

0

0

pygmaea

22C

Light

no

8

8

100

0

0

0

8

0

0

0

0

0

0

0

0

0

0

0

(PTJ)

 

Dark

no

11

11

100

0

0

0

8

2

1

0

0

0

0

0

0

0

0

0

 

29C

Light

no

8

8

100

0

0

6

1

1

0

0

0

0

0

0

0

0

0

0

 

 

Dark

no

11

11

100

0

0

4

6

1

0

0

0

0

0

0

0

0

0

0

‘Perry's Fire

22C

Light

no

25

19

76

0

0

0

3

2

2

5

0

4

3

0

0

0

0

0

Opal’

 

 

yes

25

22

88

0

1

3

10

3

2

1

0

0

0

0

1

0

1

0

(PFO)

 

Dark

no

25

19

76

0

2

0

2

1

2

6

1

2

2

0

1

0

0

0

 

 

 

yes

25

23

92

0

2

1

7

5

1

5

2

0

0

0

0

0

0

0

 

29C

Light

no

25

19

76

0

6

1

4

3

1

4

0

0

0

0

0

0

0

0

 

 

 

yes

25

24

96

4

5

9

3

0

0

1

0

1

0

1

0

0

0

0

 

 

Dark

no

25

21

84

3

0

10

4

3

1

0

0

0

0

0

0

0

0

0

 

 

 

yes

24

23

96

1

14

4

2

1

0

0

0

1

0

0

0

0

0

0

‘Fire Crest’

22C

Light

no

19

17

89

0

0

1

4

1

0

4

0

1

2

1

0

1

2

0

(FIR)

 

 

yes

19

11

58

0

0

0

3

0

3

3

0

0

1

0

0

1

0

0

 

 

Dark

no

19

13

68

0

0

4

2

0

1

1

1

2