Growth Responses and Nitrogen Uptake by Saltgrass (Distichlis spicata L.), a Halophytic Plant Species, under Salt Stress, Using the ¹⁵N Technique

Table 3

Shoot and root dry matter (DM) weights of various saltgrass clones under the control and salt (NaCl) stress conditions.

Grass clones ID	Shoot DM wt.		Root DM wt.
	Treatment		Treatment
	Control, 0.95 dSm^−1 (608 mg L^−1)	EC 20 dSm^−1 (12,800 mg L^−1)	Control, 0.95 dSm^−1 (608 mg L^−1)	EC 20 dSm^−1 (12,800 mg L^−1)
	(g)
A138	0.96a	0.59bc	0.18b	0.20b
A136	0.83a	0.47bc	0.14b	0.18b
72	0.72ab	0.51bc	0.45a	0.57a
240	0.59bc	0.47bc	0.18b	0.32ab
A50	0.56bc	0.44bc	0.12bc	0.17b
A126	0.55bc	0.45bc	0.06c	0.11bc
A37	0.47bc	0.34bc	0.17b	0.19b
A60	0.46bc	0.42bc	0.14b	0.18b
239	0.45bc	0.39bc	0.05c	0.09bc
A49	0.39bc	0.41bc	0.07c	0.16b
A107	0.39bc	0.36bc	0.11bc	0.18b
A86	0.31c	0.47bc	0.16b	0.18b

Shoot DM values are averages of 4 replications and 6 harvests for both experiments. Root DM values are averages of 4 replications at the final harvest for both experiments.
Values for shoot or root under control and salt stress treatment columns compared together followed by the same letters are not statistically different at the 0.05 probability level.