Table 5.

The root average diameter (mm) and the number of root tips (TI) after repeated drought and salt stresses (C, control; D, drought; S, salt).

T	Genotype	Root average diameter				Number of root tips
		1st	2nd	3rd	4th	1st	2nd	3rd	4th
C	Azeghar	0.57 ± 0.03a	0.39 ± 0.1a	0.82 ± 0.08b	0.74 ± 0.07b	455 ± 27c	1,243 ± 287a	1,989 ± 217a	2,723 ± 850ab
C	Cham1	0.6 ± 0.02a	0.46 ± 0.01a	0.93 ± 0.08b	0.67 ± 0.06b	896 ± 110a	633 ± 94a	2,009 ± 312a	3,614 ± 423a
C	JK	0.41 ± 0.05b	0.39 ± 0.06a	1.13 ± 0.04a	1.93 ± 0.45a	538 ± 42c	1,188 ± 406a	2,218 ± 309a	1,726 ± 194b
C	Sebatel	0.46 ± 0.03b	0.38 ± 0.05a	0.91 ± 0.01b	0.71 ± 0.09b	733 ± 37b	1,326 ± 507a	1,704 ± 385a	2,870 ± 730a
D	Azeghar	0.43 ± 0.04b	0.3 ± 0.04b	0.47 ± 0.05a	0.44 ± 0.04b	666 ± 231b	2,493 ± 913a	1,314 ± 329b	2,044 ± 106a
D	Cham1	0.4 ± 0.03b	0.37 ± 0.01a	0.48 ± 0.08a	0.53 ± 0.08b	802 ± 39ab	2,195 ± 210a	2,299 ± 524a	1,915 ± 411a
D	JK	0.42 ± 0.06b	0.37 ± 0.04a	0.56 ± 0.03a	0.71 ± 0.05a	973 ± 78a	2,897 ± 885a	1,970 ± 168ab	2,359 ± 509a
D	Sebatel	0.52 ± 0.02a	0.3 ± 0.02b	0.5 ± 0.05a	0.54 ± 0.1b	819 ± 6ab	2,116 ± 430a	1,799 ± 489ab	1,714 ± 560a
S	Azeghar	0.43 ± 0.06a	0.44 ± 0.03a	0.43 ± 0.02a	0.31 ± 0.03b	473 ± 26ab	1,510 ± 119b	921 ± 558b	1,909 ± 606bc
S	Cham1	0.46 ± 0.03a	0.35 ± 0.01b	0.43 ± 0.02a	0.37 ± 0.03ab	367 ± 74b	1,362 ± 21b	866 ± 97b	1,139 ± 592c
S	JK	0.46 ± 0.05a	0.39 ± 0.03ab	0.48 ± 0.04a	0.42 ± 0.04a	515 ± 10a	2,399 ± 143a	1,805 ± 316a	3,073 ± 541a
S	Sebatel	0.45 ± 0.01a	0.42 ± 0.03a	0.46 ± 0.11a	0.32 ± 0.03b	592 ± 97a	1,480 ± 352b	2,492 ± 13a	2,580 ± 190ab
	Genotype (G)	*	ns	***	***	**	ns	**	ns
	Treatments (T)	***	**	***	***	***	***	**	**
	G × T	***	*	*	***	***	ns	***	***

Values are means ± standard deviations (n = 3). Means with the same letter in each column, within treatment, are not significantly different between genotypes (p < 0.05) (LSD test).

ns, not significant; LSD, least significant difference.

*, **, and *** indicate significance at p < 0.05, p < 0.01, and p < 0.001 levels, respectively.