Table 5. Kruskal-Wallis rank sum test at two growth stages.

		Sur a	Eph	Sd	Nn	EXG b
Source	Df	Set1 c	Set2	Set1	Set2	Set1
Rep	2	NS d	NS	NS	NS	NS
Entry	19	NS	***	*	**	NS
		EXGR	EXR	GLI	NDI	VARI
Source	Df	Set1	Set2	Set1	Set2	Set1
Rep	2	NS	NS	NS	NS	NS
Entry	19	**	***	*	***	**

^a Sur = Surface area of individual plants (cm²); Eph = Estimated plant height (mm); Sd = Stem diameter (mm); and Nn = Number of nodes

^b EXG (excess green index), EXGR (excess green minus excess red index), EXR (excess red index), GLI (green leaf index), NDI (normalized difference index), and VARI (visible atmospheric resistant index).

^c Set 1 and Set 2 measured July 14 and August 31.

^d NS, nonsignificant at p ≤ 0.05

*significant at the 0.05

** significant at the 0.01

*** significant at 0.001.