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Table 3 Morphometrics of Steinernema affine M.313

From: First report of entomopathogenic nematode Steinernema affine (Nematoda: Steinernematidae) in Syria and its virulence against Galleria mellonella L. (Lepidoptera: Pyralidae)

Character Infective juveniles (IJs) First generation Second generation
Male Female Male Female
n 20 20 20 20 20
L 765 ± 45.2
(663–820)
1557.7 ± .99
(1390–1677)
4954 ± 289
(3465–5700)
1399.6 ± 111
(1154–1630)
1702 ± 99.1
(1451–1845)
MBD 32.5 ± 1.8
(27–35)
106.5 ± 17.2
(73–139)
274 ± 9.4
(264–285)
76.2 ± 6.3
(68–89)
83 ± 4.8
(75–88)
EP 67.9 ± 3.4
(62 -72)
107 ± 6
(97–119)
146.2 ± 11.1
(131–169)
110.5 ± 6.2
(101–117)
106.5 ± 2.3
(104–112)
NR 95.1 ± 6.2
(87–105)
125.6 ± 7.3
(118–146)
170.5 ± 10.2
(158–191)
131 ± 7.3
(125–140)
134.7 ± 12.6
(119–136)
ES 118.4 ± 5.6
(113–132)
172 ± 5.75
(160–180)
238.9 ± 14.2
(222–253)
175.2 ± 6.5
(165–184)
186.4 ± 3.2
(178–189)
ABD 19.4 ± 1.0
(18–23)
61.3 ± 5
(52–73)
90.8 ± 5.2
(83–102)
48.2 ± 4.2
(42–51)
49.2 ± 7.2
(42–55)
T 64.8 ± 4.6
(61–69)
52.6 ± 2.9
(48–57)
57.7 ± 3.8
(50–64)
40.7 ± 2.8
(34–44)
64.5 ± 6.8
(58–65)
a 28.2 ± 1.4
(22–29.8)
15 ± 2
(11.-17.5)
18.1 ± 2.6
(12.8–21.5)
18.3 ± 2.4
(15.2–23)
21.6 ± 2.4
(16.2–24)
b 6.2 ± 1
(5.4–8.7)
9 .2 ± 0.6
(7.9–10.1)
20.7 ± 2.8
(13.6–23.4)
8 ± 0.8
(6.9–9.7)
9.1 ± 1.1
(7.1–10.8)
c 11 ± 1.2
(10 -12.2)
29.6 ± 2.5
(26.4 -35)
85.8 ± 3.8
(71.1–97.5)
29.9 ± 2.6
(23.6- 31.5)
26.5 ± 5.2
(20.6–33.8)
D% 56.3 ± 2.9
(48 -62.3)
62.4 ± 3.3
(56 -66)
61.2 ± 3.1
(55.1–65.3)
62.1 ± 3.9
(55–68.4)
57.1 ± 1.8
(55- 61.2)
E% 104.1 ± 10.4
(94.3- 106.2)
204 ± 16.1
(186–242)
254 ± 16
(209–286)
231.5 ± 21.3
(208–264.4)
165.1 ± 8.1
(155–179.3)
TR 537 ± 11.7
(479–566)
  210
(188–290)
SL 69.2 ± 6.5
(64–79)
67.5 ± 4.4
(60–74)
SW 13.4 ± 1.1
(9.7–15)
10.5 ± 1
(9–12)
GL 44.8 ± 5.4
(33–51)
36.8 ± 3.2
(30–38)
GW 8.4 ± 0.8
(8 -10.5)
7.6 ± 0.8
(7 -8.2)
SW% 113 ± 11.6
(92–123)
140.8 ± 8.7
(111–169)
GS% 66.8 ± 10.32
(49.7–84.3)
54.5 ± 3
(46- 59)
  1. All measurements are in micrometers (except n, ratio, and percentage). Data are expressed as mean ± SD (range)