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Table 2 Degrees of freedom (D. F.), χ2 and P-value of the generalized linear mixed-effects model analysis testing the effects of seed species (Ipomoea murucoides, I. pauciflora), Type of canopy (I. murucoides, I. pauciflora, control area) and seed proportion of I. murucoides: I.pauciflora (8:0, 6:2, 4:4, 2:6 and 0:8) on seedling emergence of I. murucoides and I. pauciflora

From: Density-dependent effect of allelopathy on germination and seedling emergence in two Ipomoea species

Source of variation

D.F.

χ2

P

Seed species

1

9.286

0.0023

Type of canopy

2

1.0029

0.6057

Seed density

1

0.3334

0.5637

Seed species × Type Canopy

2

1.2769

0.5281

Seed species × Seed density

1

0.3685

0.5438

Type of Canopy × Seed density

2

5.8182

0.0545

Seed species × Type of Canopy × Seed density

2

1.8806

0.3905