Relative competition intensity (RCI)
The relative competition intensity (RCI) gave us variable results for
traits of both the species, some of which were positive and others were
negative (Fig. 4). Plant height of WT under CK, F and N
was affected negatively and showing strong competition, but combination
of additional nitrogen and flooding (F.N, F.2N) had a positive effect on
plant height, while plant height of WC in most
treatments had RCI below zero, showing strong competition (Fig. 4). LN
and CHl of WC were positive under interaction of
nitrogen and flooding (F.N and F.2N) but WT had negative
values under these treatment levels, indicated that WTbecame competitor and WC became facilitator.