Rhizomes Help the Forage Grass Leymus chinensis to Adapt to the Salt and Alkali Stresses

Table 1

The effects of salt stress (S) and alkali stress (A) on biomass and vegetative reproduction of L. chinensis.

Stress category	Concentration	Biomass (means ± SE, mg)				Vegetative reproduction (means ± SE,/plant)
		Leaf	Stem	Rhizome	Root	DSR	DST	RN	TDN
Salt stress	C	0.24 ± 0.003^a	0.16 ± 0.004^a	0.05 ± 0.004^a	0.05 ± 0.007^a	7.57 ± 0.541^a	2.86 ± 0.218^a	3.10 ± 0.048^a	10.43 ± 0.378^a
	S100	0.17 ± 0.007^b	0.11 ± 0.005^b	0.04 ± 0.005^b	0.05 ± 0.006^a	5.38 ± 0.497^b	1.90 ± 0.265^b	2.81 ± 0.454^a	7.29 ± 0.756^b
	S200	0.16 ± 0.018^b	0.10 ± 0.012^b	0.03 ± 0.003^c	0.04 ± 0.002^b	4.38 ± 0.172^b	1.90 ± 0.126^b	2.29 ± 0.000^b	6.29 ± 0.286^b
Alkali stress	C	0.24 ± 0.003^a	0.16 ± 0.004^a	0.05 ± 0.004^a	0.05 ± 0.007^a	7.57 ± 0.541^a	2.86 ± 0.218^a	3.10 ± 0.048^a	10.43 ± 0.378^a
	A100	0.19 ± 0.012^b	0.12 ± 0.008^b	0.04 ± 0.007^b	0.04 ± 0.004^b	5.86 ± 1.072^a	1.53 ± 0.126^b	2.38 ± 0.290^b	7.38 ± 1.061^b
	A200	0.08 ± 0.008^c	0.06 ± 0.005^c	0.02 ± 0.002^c	0.02 ± 0.003^c	1.90 ± 0.265^c	1.43 ± 0.082^b	1.71 ± 0.143^c	3.33 ± 0.208^c

The means and standard errors are reported. C: without salt or alkali stresses, S100: salt stress with 100 mmol/L concentration, S200: salt stress with 200 mmol/L concentration, A100: alkali stress with 100 mmol/L concentration, and A200: alkali stress with 200 mmol/L concentration. In the same stress category, within each column, the different letters indicate significant difference among treatments (𝑛=3, 𝑃 < 0.05). DSR: daughter shoots from rhizome; DST: daughter shoots from tillers; RN: rhizome number; TDN: total daughter number.