Argonauta 1-6 2010





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Table-2: Effects of sub-lethal exposure (40% & 80% of 24h LC50) to the extracts of 24h, 48h, 72 and 96h of J. gossypifolia latex+rutin, J. gossypifolia latex+ellagic acid and J. gossypifolia latex+taraxerol in binary combinations (1:1) hatchability and survival of young snail Lymnaea acuminata at different time intervals.

 

Extracts

Conc. (mg/L)

40% and 80% of LC50 of 24h

% hatchability (in days)

Survival after 24h hatching %

Survival after 48h hatching %

Survival after 72h hatching %

Control

100 (7-9)

100

100

100

J. gossypifolia latex+ rutin

0.54

135.8±2.66(11-16)

80.13±0.82

67.91±0.12

35.83±0.52

1.08

116.8±1.51(12-17)

80.61±0.08

65.42±0.09

32.84±0.87

J. gossypifolia latex+ ellagic acid

2.02

147.5±3.52(11-16)

103.2±0.05

84.07±0.01

0

4.04

111.1±1.82(12-17)

87.16±0.01

54.46±0.11

0

J. gossypifolia latex+ taraxerol

4.00

107.0±1.36(11-16)

96.30±0.06

73.83±0.07

0

8.00

95.83±0.95(12-17)

79.53±0.07

48.87±0.05

0

J. gossypifolia latex+ rutin

0.42

276.3±2.09(11-16)

149.2±0.06

107.7±0.10

0

0.84

136.8±1.21(12-17)

88.93±0.10

77.99±0.09

0

J. gossypifolia latex+ ellagic acid

1.70

290.8±2.36(11-16)

189.0±0.24

113.4±0.21

0

3.40

275.3±2.09(12-17)

176.1±0.66

112.8±0.01

0

J. gossypifolia latex+ taraxerol

3.66

262.6±0.73(11-16)

196.9±0.66

128.7±0.03

0

7.32

217.6±2.19(12-17)

187.1±0.12

128.4±0.09

0

J. gossypifolia latex+ rutin

0.34

144.8±0.44(11-16)

141.3±0.67

113.1±0.66

0

0.68

134.0±0.40(12-17)

129.3±0.23

87.33±0.83

0

J. gossypifolia latex+ ellagic acid

1.42

283.0±0.75(11-16)

276.3±0.67

123.3±0.96

0

2.84

273.3±0.96(12-17)

262.3±0.36

113.5±0.83

0

J. gossypifolia latex+ taraxerol

3.16

252.5±0.83(11-16)

247.1±0.77

209.5±0.83

0

6.32

247.5±0.68(12-17)

234.3±0.67

208.1±1.03

0

J. gossypifolia latex+ rutin

0.29

137.0±0.69(11-16)

129.3±1.08

95.67±0.73

0

0.58

134.0±0.40(12-17)

128.5±0.47

82.83±0.77

0

J. gossypifolia latex+ ellagic acid

1.13

215.3±0.67(11-16)

213.0±1.02

206.8±1.67

0

2.26

211.1±0.66(12-17)

188.5±0.47

186.3±1.40

0

J. gossypifolia latex+ taraxerol

2.79

244.6±0.92(11-16)

236.8±1.31

207.1±1.58

0

5.58

236.6±0.61(12-17)

210.8±0.87

182.5±0.49

0

·   Each value is mean ±SE of six replicates.

·   Each replicate represents the eggs laid by a group of 20 snails.

·   Significant (P<0.05) when Student’s‘t’ test was applied to treated and control groups.

0; No fecundity, hatchability or survival was observed