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Research Article

Screening for Salt Tolerance in Eight Halophyte Species from Yellow River Delta at the Two Initial Growth Stages

Table 4

Correlation between relative germination index of eight halophyte seeds and salt concentration.


Species	Regression equation	Regression coefficient ()	Correlated coefficient ()	Salt tolerance (mM NaCl)
Species	Regression equation	Regression coefficient ()	Correlated coefficient ()

S. cannabina		0.8492	−0.9215**	12.2	109.3	206.3
L. bicolor		0.8316	−0.9119**	66.2	179.3	292.4
S. salsa		0.9078	−0.9528**	136.5	234.3	332.1
T. chinensis		0.9099	−0.9539**	148.8	257.6	366.5
A. venetum		0.9633	−0.9815**	128.2	237.5	346.8
S. europaea		0.9141	−0.9561**	100.1	206.6	312.9
P. australis		0.9107	−0.9543**	63.2	127.7	192.2
A. isatidea		0.9518	−0.9756**	67.7	142.7	217.8

Note: **denotes significant at ≤0.01 level. In the regression equation, is relative germination index, and is salt concentration. : appropriate value of salt concentration for seed germination; : critical value of salt concentration for seed germination; : limited value of salt concentration for seed germination.