Table 1 Summary of two-way ANCOVAs showing effects of different levels of water (W), nutrient availability (N), pure (D1) or mixed (D3) density, plants from the three dispersal unit morphs (M) and their interactions on proportion of each dispersal unit morph from offspring of Ceratocarpus arenarius.

From: Phenotypic plasticity in diaspore production of a amphi-basicarpic cold desert annual that produces polymorphic diaspores

Source

Dispersal unit a

Dispersal unit c

Dispersal unit f

W

F

0.49

10.69

10.69

df

3

3

3

P

0.70

 < 0.05

 < 0.05

M

F

0.56

0.58

0.52

df

2

2

2

P

0.58

0.56

0.60

W × M

F

1.31

2.02

1.97

df

6

6

6

P

0.26

0.07

0.08

N

F

3.74

5.98

5.93

df

2

2

2

P

 < 0.05

 < 0.05

 < 0.05

M

F

1.50

2.97

3.05

df

2

2

2

P

0.23

0.06

0.06

N × M

F

0.76

2.16

2.09

df

4

4

4

P

0.56

0.09

0.09

D1

F

3.63

1.79

2.12

df

3

3

3

P

 < 0.05

0.16

0.11

M

F

0.95

5.86

5.85

df

2

2

2

P

0.39

 < 0.05

 < 0.05

D1 × M

F

2.70

1.05

1.24

df

6

6

6

P

 < 0.05

0.40

0.30

D3

F

1.73

0.72

0.98

df

2

2

2

P

0.19

0.49

0.38

M

F

0.23

2.50

2.67

df

2

2

2

P

0.79

0.09

0.08

D3 × M

F

0.43

2.14

2.32

df

4

4

4

P

0.79

0.09

0.07

  1. There was no significant effect of initial seedling size, which was used as a covariate, on any of the variables in the analyses (data not shown).
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