Type III Tests of Fixed Effects and their interactions on seedling emergence (%) for Asclepias humistrata evaluated over 52 weeks in response to sowing seed within three microsite conditions, with two types of seed cover and four levels of protection. Weeks after Sowing = Seed sown June 9, 2019 and evaluated for emergence after 6, 7, 11, 20, 23, 38, and 52 weeks; Planting microsite = (seeds sown under a scrub oak canopy of Quercus geminata (sand live oak) or Q. myrtifolia (myrtle oak), on the gulf-side edge (drip line) of coastal scrub or in an open area gulf-side of coastal scrub); Seed cover = seeds covered by leaf litter or covered only with sand; Planting site protection = (seeds planted in open sand without protection, within PVC pipes, covered with a wire mesh or within PVC pipes covered with a wire mesh cover.
| Effect | Num DF | Den DF | F Value | Pr > F |
|---|---|---|---|---|
| Weeks after sowing (WAS) | 6 | 668 | 26.68 | <0.0001 |
| Microsite | 2 | 672 | 0.01 | 0.9874 |
| WAS × Microsite | 12 | 668 | 14.12 | <0.0001 |
| Cover | 1 | 668 | 78.33 | <0.0001 |
| WAS × Cover | 6 | 668 | 0.78 | 0.5827 |
| Microsite × Cover | 2 | 668 | 4.53 | 0.0112 |
| WAS × Microsite × Cover | 12 | 668 | 3.22 | 0.0002 |
| Protection | 3 | 668 | 16.44 | <0.0001 |
| WAS × Protection | 18 | 668 | 1.17 | 0.2835 |
| Microsite × Protection | 6 | 668 | 0.89 | 0.5049 |
| WAS × Microsite × Protection | 36 | 668 | 0.64 | 0.9492 |
| Cover × Protection | 3 | 668 | 6.10 | 0.0004 |
| WAS × Cover × Protection | 18 | 668 | 0.48 | 0.9650 |
| Microsite × Cover × Protection | 6 | 668 | 0.76 | 0.5997 |
| WAS × Microsite × Cover × Protection | 36 | 668 | 0.42 | 0.9990 |