三种盐胁迫对互花米草和芦苇光合作用的影响

胡楚琦, 刘金珂, 王天弘, 王文琳, 卢山, 周长芳

Influence of three types of salt stress on photosynthesis in Spartina alterniflora and Phragmites australis

HU Chu-Qi,LIU Jin-Ke,WANG Tian-Hong,WANG Wen-Lin,LU Shan,ZHOU Chang-Fang

表1 不同盐处理对互花米草和芦苇最大净光合速率的影响(μmol·m^-2·s^-1) (平均值±标准误差, n = 3)

Table 1 Influence of different salt treatments on maximum net photosynthetic rate in Spartina alterniflora and Phragmites australis (μmol·m^-2·s^-1) (mean ± SE, n = 3)

处理后天数 Day after treatment	互花米草 S. alterniflora			芦苇 P. australis
处理后天数 Day after treatment	Na₂SO₄	Na₂S	NaCl	Na₂SO₄	Na₂S	NaCl
0	19.92 ± 1.44^a	21.25 ± 0.58^a	16.53 ± 1.33^a	17.89 ± 1.90^a	17.98 ± 2.50^a	15.65 ± 0.24^a
1	18.43 ± 1.30^a	23.61 ± 1.67^ab	16.16 ± 0.91^a	16.36 ± 2.75^a	14.03 ± 3.19^a	15.76 ± 2.20^a
2	18.67 ± 1.80^a	25.39 ± 1.16^b	18.11 ± 1.48^a	16.81 ± 2.21^a	15.08 ± 2.52^a	14.54 ± 0.12^a
3	20.36 ± 1.12^a	24.41 ± 0.58^ab	19.33 ± 1.42^a	17.47 ± 2.27^a	13.54 ± 2.43^a	13.07 ± 1.44^a
4	22.07 ± 2.05^a	26.11 ± 0.43^b	17.60 ± 1.31^a	16.93 ± 2.42^a	11.64 ± 3.81^a	12.42 ± 1.07^a