Comprehensive Evaluation of Salt Tolerance in Asparagus Germplasm Accessions (Asparagus officinalis L.) at Different Growth Stages

Table 2

Grading standard of salt tolerance at the germination stage and seedling stage.

Grade	Salt tolerance	RSR (%)	SI (%)
1	Highly salt-tolerant	0.0–20.0	0.0–20.0
2	Salt-tolerant	20.1–40.0	20.1–40.0
3	Moderately salt-tolerant	40.1–60.0	40.1–60.0
4	Salt-sensitive	60.1–80.0	60.1–80.0
5	Highly salt-sensitive	80.1–100.0	80.1–100.0

^zRSR: the relative salt-injury rate at the germination stage; SI: the salt-injury index at the seedling stage.