Table 1 Contents of oridonin in ice ribbon and bleeding sap of I. rubescens.

From: The water and oridonin sources in the ice ribbons of Isodon rubescens

Source

Peak area

Concentration (mg/ml)

Multiple comparisons *

First day ice ribbon

66.9

0.003438

0.003059b

58.2

0.003004

52.8

0.002735

Second day ice ribbon

14.094

0.000803

0.000895c

13.627

0.00078

20.094

0.001103

Third day ice ribbon

2.51

0.000225

0.000245d

2.67

0.000233

3.55

0.000277

Bleeding sap

22.626

0.001229

0.000984c

17.672

0.000982

12.82

0.00074

Stem

235.2

0.1398 (mg/g)

0.139918a(mg/g)

233.9

0.139034 (mg/g)

237.1

0.14092 (mg/g)

  1. *The mean difference is significant at the 0.01 level. The different letters indicates there is obvious difference between these means.
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