Table 1: Weed composition in season long weedy plots of aerobic rice (Off-season 2010 and main season 2010/2011; summed dominance ratio (SDR ± SE)).

Scientific nameFamily nameWeed typeSummed dominance ratio
Off-season 2010Main season 2010/2011

Alternanthera sessilis (L.) R. Br. Ex DC.AmaranthaceaeB 0 . 8 ± 0 . 1 9 0 . 6 ± 0 . 1 1
Amaranthus viridis L.AmaranthaceaeB 0 . 8 ± 0 . 2 5
Axonopus compressus (Sw.) BeauvPoaceaeG 1 . 1 ± 0 . 5 1
Cleome rutidosperma DCCapparidaceaeB 1 0 . 3 ± 2 . 6 1 5 . 3 ± 5 . 1
Cyperus aromaticusCyperaceaeS 2 . 5 ± 0 . 8 1
Cyperus distansCyperaceaeS 4 . 1 ± 1 . 2 2 . 9 ± 0 . 8 6
Cyperus rotundus L.CyperaceaeS 9 . 2 ± 1 . 9 7 . 2 ± 2 . 8
Cyperus sphacelatus Rottb.CyperaceaeS 3 . 5 ± 0 . 9 8
Digitaria ciliaris (Retz.) KoelPoaceaeG 1 . 5 ± 0 . 5 1 0 . 3 ± 0 . 1 1
Echinochloa colona (L.) LinkPoaceaeG 3 . 0 ± 0 . 7 6 2 . 2 ± 1 . 1
Eclipta prostrata (L.) L.AsteraceaeB 0 . 3 ± 0 . 1 2
Eleusine indica (L.) Gaertn.PoaceaeG 7 . 6 ± 2 . 2 1 . 7 ± 0 . 5 6
Emilia sonchifolia (L.) DC. Ex WightAsteraceaeB 0 . 6 ± 0 . 1 0 0 . 4 ± 0 . 1 0
Euphorbia hirta L.EuphorbiaceaeB 0 . 7 ± 0 . 1 7 4 . 3 ± 1 . 3 4
Fimbristylis miliacea (L.) VahlCyperaceaeS 6 . 4 ± 2 . 0 3 . 2 ± 1 . 2
Hedyotis corymbosa (L.) Lam.RubiaceaeB 1 . 4 ± 0 . 3 9 3 . 7 ± 1 . 2
Hyptis brevipes PoitLamiaceaeB 1 . 0 ± 0 . 2 2 0 . 7 ± 0 . 2 3
Jussiaea linifolia VahlOnagraceaeB 2 . 2 ± 0 . 2 5 6 . 6 ± 2 . 9
Leptochloa chinensis (L.) NeesPoaceaeG 7 . 0 ± 1 . 3 1 . 1 ± 0 . 3 0
Mimosa pudica L.FabaceaeB 1 . 3 ± 0 . 3 6 6 . 4 ± 1 . 3
Phyllanthus niruri L.EuphorbiaceaeB 1 . 9 ± 0 . 4 2 5 . 1 ± 0 . 8 4
Physalis heterophylla NeesSolanaceaeB 2 0 . 8 ± 5 . 8 2 3 . 7 ± 7 . 2
Scoparia dulcis L.ScrophulariaceaeB 1 2 . 0 ± 3 . 4 1 4 . 6 ± 4 . 6

B = broadleaf; S = sedge; G = grass.