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Table 2 Comparative morphometrics of all generations of present strain CS38 with Steinernema abbasi. All measurements are in micrometers (except percentage) and in the form of mean (range)

From: Morpho-taxometrical and molecular characterization of Steinernema abbasi (Nematoda: Steinernematidae) and its pathogenicity and generative potential against lepidopteran pests

Characters Male Female Infective juveniles
First generation Second generation First generation Second generation
CS38 Steinernema abbasi CS38 Steinernema abbasi CS38 Steinernema abbasi CS38 Steinernema abbasi CS38 Steinernema abbasi
Total body length (L) 1270 (1082–1441) 1252 (999–1534) 883 (761–1006) 861 (606–1035) 5041 (3731–6314) 3510 (2453–4477) 1631 (1287–2071) 2609 (1897–3917) 581 (520–610) 541 (496–579)
Greatest body width (GBW) 135 (101–156) 87 (82–98) 60 (54–73) 70 (64–80) 205 (169–239) 159 (143–181) 95 (69–130) 130 (123–148) 26 (22–30) 29 (27–30)
Excretory pore (EP) 72 (57–83) 80 (68–89) 62 (54–68) 66 (62–79) 80 (70–96) 71 (62–79) 55 (46–60) 66 (61–73) 46 (39–53) 48 (46–51)
Nerve ring (NR) 91 (81–114) 103 (99–123) 72 (63–85) 99 (93–106) 102 (92–127) 125 (120–137) 75 (71–81) 114 (110–118) 57 (42–67) 68 (64–72)
Pharynx length (ES) 138 (121–162) 133 (121–144) 118 (107–126) 121 (112–130) 169 (159–190) 165 (155–176) 134 (125–140) 146 (136–157) 88 (69–98) 89 (85–92)
Tail 22 (16–27) 26 (20–31) 18 (15–20) 21 (17–24) 47 (29–72) 37 (31–40) 44 (26–56) 36 (32–39) 55 (42–63) 56 (52–61)
Spicule length (SPL) 72 (62–80) 65 (57–74) 53 (33–63) 61 (51–69) - -   - - -
Gubernaculum length (GL) 46 (42–50) 45 (33–50) 37 (30–40) 43 (35–48) - -   - - -
a 9.5 (7.5–11) - 15 (12–17) - 25 (17–37) - 17 (15–19) - 23 (20–25) 18 (17–20)
b 9.2 (8.1–11) - 7.5 (6.2–8.6) - 30 (22–37) - 12 (10–16) - 6.7 (6.0–7.5) 6.0 (5.5–6.6)
c 58 (46–83) - 50 (43–54) - 113 (55–173) - 38 (27–50) - 11 (9.2–13.6) 9.8 (8.1–10)
D% 52 (44–60) 60 (51–68) 53 (48–56) 56 (50–70) 47 (42–55) 42 (36–48) 41 (34–46) 45 (43–47) 53 (45–58) 53 (51–58)
E% 325 (248–403) - 350 (294–438) - 180 (97–237) - 129 (89–201) - 85 (70–102) -
SW% 210 (159–245) 156 (107–187) 191 (114–220) 159 (128–185) - - - -   -
GS% 65 (58–80) 70 (58–85) 70 (57–91) 70 (58–81) - - - -   -