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Table 2 Sex ratio and mean offspring number of Heliothrips haemorrhoidalis

From: Polyploidy versus endosymbionts in obligately thelytokous thrips

Treatment

1st week

2nd week

3rd week

Total progeny in 3 weeks

 

Female

Male

Female

Male

Female

Male

Female

Male

Rifampicin (5%)

2.08 ± 0.23

0

8.56 ± 0.45

0

11.52 ± 0.46

0

22.16 ± 0.52

0

Control

3.04 ± 0.26

0

10.04 ± 0.41

0

12.84 ± 0.50

0

25.92 ± 0.70

0

t-test (df 48)

2.76

 

2.42

 

1.93

 

4.26

 

p

0.008

 

0.02

 

0.06

 

<0.0001

 
  1. This was tested on 25 females during the first, second and third week after rifampicin treatment (both larval and adult stages; second experiment). Differences between treatment and control were tested with an Independent-Samples T test.