Effect of soil aeration on root morphology and photosynthetic characteristics of potted tomato plants (Solanum lycopersicum) at different NaCl salinity levels

Table 6 Simple correlation analysis between root characteristics, photosynthetic characteristics and chlorophyll content of potted tomato

Factor	Root length	Root surface area	Root volume	forks	P_n	G_s	C_i	T_r	IWUE	Chl. a	Chl. b	Chl. (a + b)
Root length	1
Root surface area	0.991^**	1
Root volume	0.961^**	0.989^**	1
forks	0.988^**	0.992^**	0.975^**	1
P_n	0.707^*	0.696^*	0.670^*	0.657^*	1
G_s	0.758^**	0.742^**	0.710^**	0.719^**	0.962^**	1
C_i	−0.517	−0.500	−0.474	−0.457	−0.809^**	−0.740^**	1
T_r	0.388	0.444	0.496	0.383	0.622^*	0.485	−0.277	1
IWUE	0.657^*	0.605^*	0.536	0.616^*	0.709^**	0.806^**	−0.770^**	−0.083	1
Chl. a	0.764^**	0.773^**	0.769^**	0.747^**	0.882^**	0.822^**	−0.830^**	0.616^*	0.635^*	1
Chl. b	0.445	0.484	0.527	0.447	0.475	0.397	−0.760^**	0.285	0.434	0.743^**	1
Chl. (a + b)	0.713^**	0.731^**	0.741^**	0.700^*	0.811^**	0.742^**	−0.856^**	0.552	0.611^*	0.980^**	0.862^**	1

Note: ^* represents a significant difference (p < 0.05), and ^** represents an extremely significant difference (p < 0.01)

ISSN: 1471-2229