Table 1. Results of generalized linear model on plug survival.

Model	d.f.	Deviance (χ2)	Residual d.f.	Residual deviance	P-value
Null			31	131.49
Male genotype	7	45.74	24	85.75	9.83E−08
Female genotype	1	0.09	23	85.66	0.76
Time	1	62.82	22	22.84	2.23E−15
Male × female	7	8.81	15	14.03	0.27