Table 2: Analysis of variance summary of the effects of cultivar, water management, time, and their interaction on methane fluxes and the effects of cultivar,
water management, and their interaction on pre- and post-flood-release and season-long, area-scaled and yield-scaled methane emissions during the 2015
growing season at the Rice Research and Extension Center near Stuttgart, Arkansas.

Variable/Source of variation P
Methane fluxes
Cultivar 0.34
Water management 0.07
Time < 0.01
Cultivar × water management < 0.01
Cultivar × time 0.54
Water management × time < 0.01
Cultivar × water management × time < 0.01
Pre-flood-release, area-scaled emissions
Cultivar 0.45
Water management 0.16
Cultivar × water management 0.48
Post-flood-release, area-scaled emissions
Cultivar 0.11
Water management 0.02
Cultivar × water management 0.42
Season-long, area-scaled emissions
Cultivar 0.40
Water management 0.01
Cultivar × water management 0.16
Season-long yield-scaled emissions
Cultivar 0.43
Water management 0.01
Cultivar × water management 0.04