Table 4. Estimated indices for growth parameters of dicamba-fluroxypyr–susceptible (S) and –resistant (R) K. scoparia in the replacement series experiments averaged over experimental runs.

Parameters	Indices (S vs. R)a, b, c
	CR	P valued	RCC (S)	RCC (R)	P valuee	AI	P valuef
Plant height	1.648	0.008	1.879	0.656	0.003	0.257	0.004
Plant width	1.099	0.001	1.083	0.898	0.005	0.047	0.002
Primary branches	1.576	0.002	1.914	0.716	0.001	0.240	0.003
Total leaf area	1.511	0.004	1.643	0.699	0.005	0.210	0.003
Stem diameter	1.007	0.871	1.046	1.033	0.891	0.003	0.902
Shoot dry weight	1.567	0.001	1.660	0.662	0.002	0.226	0.006

^a S, dicamba-fluroxypyr–susceptible selected line; R, dicamba-fluroxypyr–resistant selected line.

^b CR is the competitive ratio; RCC (S) and RCC (R) are the relative crowding coefficients of S and R selected lines, respectively; and AI is the aggressiveness index.

^c Indices were estimated only for equal mixture proportions (50:50) of S and R K. scoparia.

^d P values for one-sample t test for determining the deviation of CR from 1.0 (α = 0.05).

^e P values for student’s t test for the comparison of RCC (S) and RCC (R) (α = 0.05).

^f P values for one-sample t test for determining the deviation of AI from 0 (α = 0.05).