Ecological Archives E085-099-A4

Andrew G. Stephenson, Bradley Leyshon, Steven E. Travers, C. Nelson Hayes, and James A. Winsor. 2004. Interrelationships among inbreeding, herbivory, and pathogen infection on reproduction in Cucurbita pepo ssp. texana. Ecology 85:3023–3034.

Appendix D. An ANCOVA table of factors that affect the probability of seed germination.

Source

MS

df

P
       

Family

0.145

4

0.153

Cross

0.012

1

0.704

Spray Treatment

0.513

1

0.016

Mean Mass of 25 Seeds

0.400

1

0.032

Family × Cross

0.148

4

0.144

Family × Treatment

0.083

4

0.423

Cross × Treatment

0.011

1

0.723

Family × Cross × Treatment

0.102

4

0.312

   Notes: ANCOVA for the effects of Family (random), Cross (inbred or outbred), Spray Treatment (weekly insecticide spray applications/no-spray), mean mass of 25 seeds from a fruit (covariate) and all two-way interactions involving Family, Cross, and Spray Treatment and the three-way interaction on seed germination (SAS Institute, 2002). P = probability.


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