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Table 2 Phytotoxic effect of the crude extract of I. rugosus and its fractions against radish seeds

From: Phytochemical and toxicological investigations of crude methanolic extracts, subsequent fractions and crude saponins of Isodon rugosus

Samples Conc. (μg/ml) Root length inhibition% (mean ± SEM) IC50(μg/ml) Seeds inhibition% (mean ± SEM) IC50(μg/ml)
Ir.Cr 1000 72.00 ± 0.20*** 25 58.68 ± 3.52*** 52
100 63.15 ± 0.91*** 54.49 ± 0.47***
10 45.15 ± 0.61*** 39.51 ± 0.58***
Ir.Hex 1000 80.40 ± 0.68*** 29 56.00 ± 4.60*** 410
100 77.33 ± 0.64*** 47.26 ± 0.61***
10 47.26 ± 0.64*** 41.55 ± 0.61***
Ir.Chf 1000 88.40 ± 1.36* 0.1 89.32 ± 3.52 ns 0.1
100 71.37 ± 0.74*** 73.59 ± 0.58 ns
10 66.51 ± 0.39* 68.37 ± 0.62 ns
Ir.EtAc 1000 80.40 ± 0.68*** 0.1 81.32 ± 5.80 ns 0.1
100 74.55 ± 0.51*** 71.55 ± 0.65*
59.44 ± 0.58**
10 61.55 ± 0.67***
Ir.Aq 1000 40.40 ± 0.44*** 1830 49.32 ± 3.52*** 1045
100 33.67 ± 0.55*** 41.55 ± 0.64***
10 30.55 ± 0.64*** 33.62 ± 0.61***
Ir.Sp 1000 91.33 ± 0.62 0.1 93.55 ± 0.64 0.1
100 84.52 ± 0.48 81.44 ± 0.67
10 69.51 ± 0.79 66.59 ± 0.52
Negative control    
  1. Results expressed as average seeds inhibition and Inhibition of root length (mean ± SEM n = 3) and IC50. Values significantly different as compared to Standard drug; *P <0.05, **P <0.01, ***P <0.001.