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Table 1 Morphometric data for Heterorhabditis bacteriophora PH. All measurements are in μm (except n, ratio and percentage) and in the form: mean ± SD (range)

From: Description of Heterorhabditis bacteriophora (Nematoda: Heterorhabditidae) isolated from hilly areas of Kashmir Valley

Characters (n)Male (20)Hermaphrodite (20)Female (20)Infective juvenile (20)
Body length (L)865 ± 51 (782–927)4952 ± 969 (3086–5492)1874 ± 272 (1513–2290)527 ± 268 (474–568)
L′ (L-T)833 ± 51 (748–893)4858 ± 970 (2963–6406)1818 ± 267 (1468–2218)453 ± 29 (389–492)
a (L/BD)8 ± 0.8 (6.6–8.5)17 ± 4.6 (9.2–28)17.2 ± 2.9 (11–22)22 ± 1.9 (19–25)
b (L/ES)9 ± 0.5 (8.5–10)31 ± 4.4 (23–37)15.2 ± 1.9 (11–19)5.4 ± 0.4 (4.7–6.1)
c (L/T)27 ± 2.4 (23–32)54 ± 12.3 (25–75)34 ± 4.5 (26–42)7.3 ± 1.1 (5.5–9.3)
c′ (T/ABW)1.7 ± 0.2 (1.4–2.2)1.9 ± 0.5 (1.2–3.7)2.0 ± 0.3 (1.6–2.5)5.4 ± 1.0 (3.4–7.5)
V (V′/L)×100-45 ± 3.6 (37–52)45 ± 2.7 (38–51)-
Body diameter (BD)108 ± 8.1 (92–120)292 ± 44 (221–352)110 ± 16.2 (84–150)25 ± 1.8 (22–28)
Excretory pore (EP)122 ± 9.9 (103–139)209 ± 33 (127–260)152 ± 14.4 (128–181)119 ± 4.5 (110–127)
Width at EP (WEP)33 ± 4.2 (23–42)110 ± 16 (72–131)73 ± 9.1 (57–92)20 ± 1.9 (17–23)
Nerve ring (NR)66 ± 5.4 (58–76)131 ± 21 (79–162)85 ± 7.1 (71–99)73 ± 7.2 (61–90)
Pharynx length (PL)96 ± 6.2 (84–105)159 ± 23 (101–200)123 ± 6.7 (113–135)99 ± 6.4 (90–115)
Bulb length (EBL)20 ± 2.5 (16–26)32 ± 4.9 (23–44)26 ± 3.7 (21–33)17 ± 2.1 (14–21)
Bulb width (EBW)17 ± 1.3 (15–20)30 ± 2.9 (22–35)23 ± 2.7 (18–29)9.4 ± 1.0 (7.7–10.8)
Tail32 ± 2.2 (28–37)94 ± 13 (71–123)56 ± 8.2 (41–79)74 ± 11 (57–90)
Anal body width (ABW)18 ± 2.1 (15–23)51 ± 8.8 (34–75)29 ± 3.5 (24–39)15 ± 2.3 (11–19)
Spicule length (SPL)44 ± 4.5 (31–53)---
Gubernaculum length, GL21 ± 2.7 (17–26)---
D% (EP/ES×100)128 ± 14 (108–157)132 ± 11.7 (112–155)124 ± 12.1 (108–150)122 ± 8.6 (105–139)
E% (EP/T×100)385 ± 42 (302–465)227 ± 43 (105–302)278 ± 44 (187–360)165 ± 25 (131–211)
SW% (SL/ABD×100)242 ± 28 (194–282)---
GS% (GL/SL×100)47 ± 7.0 (37–57)---
Width at vulva (WV)-270 ± 48 (168–341)119 ± 21.5 (83–151)-
Anterior to vulva (V′)-2241 ± 424 (1363–2903)851 ± 132 (621–1050)-
Posterior to vulva (V″)-2711 ± 611 (1684–3733)1022 ± 156 (784–1258)-