International Journal of Horticulture, 2017,Vol.7, No.2, 7-19
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CR, CI and HCR values were higher in third instars followed by gradually decrease in fourth, second, first instars
and in adults (Table 2; Table 3; Table 4; Table 5; Table 6). The AD and HUE values were decreased in same
pattern (fourth instar >adult>first instar >second instar >third instar) whereas the other indices (RGR, ER, ECI
and ECD) represent different patterns (Table 2; Table 3; Table 4; Table 5; Table 6).
Table 2 Feeding dynamics of first instar larvae of
Epilachna vigintioctopunctata
Fab. on
Solanum melongena
,
S. nigrum
and
Momordica cochinchinensis
leaves
Parameters
S. melongena
S. nigrum
M. cochinchinensis
F
(
df
=2,6)
P
GR (mg/day)
0.070 ±0.003
a
0.054 ±0.003
b
0.042 ±0.003
bc
22.911
0.002
CR (mg/day)
0.485 ±0.016
a
0.424 ±0.012
b
0.368 ±0.004
c
25.415
0.001
RGR (mg/day)
0.025 ±0.001
a
0.014 ±0.002
b
0.009 ±0.001
c
40.08
0.001
CI (mg/day)
0.171 ±0.012
a
0.113 ±0.014
b
0.076 ±0.002
bc
20.835
0.002
ER (mg/day)
0.008 ±0.001
a
0.006 ±0.001
a
0.005 ±0.001
a
3.252
0.110
HCR (mg/day)
0.179 ±0.013
a
0.119 ±0.014
b
0.081 ±0.002
bc
19.716
0.002
AD (%)
95.342 ±0.309
ab
94.544 ±0.562
a
93.118 ±0.286
ac
7.723
0.022
ECI (%)
14.394 ±0.244
ab
12.706 ±0.381
a
11.453 ±0.829
ac
7.325
0.025
ECD (%)
15.096 ±0.216
ab
13.438 ±0.361
a
12.303 ±0.911
ac
5.883
0.039
HUE (%)
95.551 ±0.282
ab
94.831 ±0.504
a
93.562 ±0.251
ac
7.669
0.022
Note: Different letters with in the rows indicate the means (Mean ± SE of 3 observations) are significantly different (
P
< 0.05,
Tukey’s HSD) with
F
and
P
values (ANOVA) while comparing one type of host plant with the other
Table 3 Feeding dynamics of second instar larvae of
Epilachna vigintioctopunctata
Fab. on
Solanum melongena
,
S. nigrum
and
Momordica cochinchinensis
leaves
Parameters
S. melongena
S. nigrum
M. cochinchinensis
F
(
df
=2,6)
P
GR (mg/day)
0.240 ±0.011
a
0.199 ±0.007
b
0.136 ±0.005
c
39.172
0.001
CR (mg/day)
2.840 ±0.060
a
2.650 ±0.049
a
2.124 ±0.036
b
57.114
0.001
RGR (mg/day)
0.264 ±0.019
a
0.166 ±0.011
b
0.096 ±0.010
c
36.49
0.001
CI (mg/day)
3.121 ±0.142
a
2.209 ±0.101
b
1.491 ±0.147
c
38.606
0.001
ER (mg/day)
0.435 ±0.012
ab
0.365 ±0.025
a
0.312 ±0.020
ac
9.746
0.013
HCR (mg/day)
3.555 ±0.133
a
2.574 ±0.123
b
1.803 ±0.167
c
38.233
0.001
AD (%)
85.982 ±0.991
a
83.483 ±0.678
a
78.923 ±0.752
b
19.138
0.002
ECI (%)
8.437 ±0.275
a
7.517 ±0.160
a
6.421 ±0.203
b
21.438
0.002
ECD (%)
9.810 ±0.256
ab
9.007 ±0.240
a
8.137 ±0.263
ac
10.926
0.010
HUE (%)
87.719 ±0.759
a
85.830 ±0.499
a
82.599 ±0.512
b
18.503
0.003
Note: Different letters with in the rows indicate the means (Mean ± SE of 3 observations) are significantly different (
P
< 0.05,
Tukey’s HSD) with
F
and
P
values (ANOVA) while comparing one type of host plant with the other
Table 4 Feeding dynamics of third instar larvae of
Epilachna vigintioctopunctata
Fab. on
Solanum melongena
,
S. nigrum
and
Momordica cochinchinensis
leaves
Parameters
S. melongena
S. nigrum
M. cochinchinensis
F
(
df
=2,6)
P
GR (mg/day)
0.966 ±0.015
a
0.802 ±0.011
b
0.544 ±0.011
c
271.99
0.001
CR (mg/day)
9.433 ±0.143
a
8.351 ±0.118
b
7.679 ±0.122
c
47.935
0.001
RGR (mg/day)
4.056 ±0.022
a
3.249 ±0.049
b
2.126 ±0.047
c
553.224
0.001
CI (mg/day)
39.600 ±0.064
a
33.824 ±0.503
b
30.000 ±0.486
c
142.044
0.001
ER (mg/day)
13.271 ±0.035
a
12.057 ±0.215
b
11.350 ±0.127
c
44.541
0.001
HCR (mg/day)
52.871 ±0.096
a
45.881 ±0.716
b
41.350 ±0.392
c
149.51
0.001
AD (%)
66.487 ±0.050
ab
64.356 ±0.145
a
62.137 ±1.000
ac
13.874
0.006
ECI (%)
10.243 ±0.046
a
9.606 ±0.015
b
7.086 ±0.060
c
1420.08
0.001
ECD (%)
15.406 ±0.064
a
14.926 ±0.054
b
11.407 ±0.128
c
611.248
0.001
HUE (%)
74.899 ±0.028
ab
73.722 ±0.079
a
72.543 ±0.522
ac
14.876
0.005
Note: Different letters with in the rows indicate the means (Mean ± SE of 3 observations) are significantly different (
P
< 0.05,
Tukey’s HSD) with
F
and
P
values (ANOVA) while comparing one type of host plant with the other
