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Table 4 Biological parameter (means ± standard error) recorded on various types of larval diets of Pectinophora gossypiella under laboratory conditions

From: Impact of numerous larval diets on the biology of pink bollworm Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae) under laboratory conditions

Sr. No

Biological Parameter

Treatments (Diets)

Meal based diet (Cottonseed) T1

Meal based diet (Okra seed) T2

Cotton seed sprouts T3

Okra seed sprouts T4

Green Cotton bolls T5

Okra fruit (slices) T6

Control/ Meal based diet

(Wheat germ) T7

1

Larval longevity /d

19.68 ± 0.05a

16.48 ± 0.09b

16.15 ± 0.79b

19.48 ± 0.20a

10.48 ± 0.16d

10.48 ± 0.16d

13.10 ± 0.28c

2

Larval weight /mg

20.18 ± 0.20b

18.11 ± 0.07cd

16.52 ± 0.06d

17.18 ± 0.03d

26.51 ± 1.07a

20.08 ± 0.03b

19.56 ± 0.14bc

3

Pupal weight /mg

17.24 ± 0.03c

15.52 ± 0.09d

14.53 ± 0.08f

15.23 ± 0.02e

20.13 ± 0.05a

18.39 ± 0.05b

17.14 ± 0.06c

4

Pupae formation /%

84.00 ± 4.00ab

64.00 ± 4.00b

80.00 ± 6.32ab

68.00 ± 8.00b

96.00 ± 4.00a

72.00 ± 4.90b

76.00 ± 4.00ab

5

Pupal duration /d

7.76 ± 0.06b

8.53 ± 0.03a

7.68 ± 0.21b

8.62 ± 0.05a

7.73 ± 0.03b

8.64 ± 0.03a

8.02 ± 0.12b

6

Adult emergence /%

76.00 ± 1.00ab

75.00 ± 6.45ab

57.67 ± 8.68b

90.00 ± 6.12a

88.00 ± 4.90a

78.33 ± 5.65ab

88.33 ± 7.26a

7

Male life span /d

40.25 ± 0.10d

38.43 ± 0.02f

42.38 ± 0.04a

40.90 ± 0.02c

36.80 ± 0.05g

41.44 ± 0.01b

38.93 ± 0.03e

8

Female life span /d

44.34 ± 0.11f

46.77 ± 0.07de

48.56 ± 0.19c

50.24 ± 0.08b

41.25 ± 0.07g

48.23 ± 0.06cd

54.46 ± 0.03a

9

Fecundity /(eggs·female−1·d−1

21.28 ± 0.04b

18.32 ± 0.09d

14.54 ± 0.04f

12.21 ± 0.02g

16.55 ± 0.19e

22.26 ± 0.01a

19.22 ± 0.07c

10

Egg viability /%

65.78 ± 0.14e

76.41 ± 0.37c

96.29 ± 0.27b

98.31 ± 0.14a

67.68 ± 0.60d

49.42 ± 0.02g

57.22 ± 0.20f

11

Larval mortality /%

37.20 ± 1.36de

40.80 ± 0.49bc

43.60 ± 0.40ab

34.40 ± 0.40e

39.60 ± 0.75cd

45.20 ± 0.49a

12.80 ± 0.49f

12

Larval pupation /%

62.80 ± 1.36c

59.20 ± 0.49e

56.40 ± 0.40f

65.60 ± 0.40b

60.40 ± 0.75d

54.80 ± 0.49g

87.20 ± 0.49a

13

Deformed pupation /%

12.00 ± 1.41a

6.80 ± 0.49d

12.00 ± 0.63a

10.80 ± 0.80b

7.60 ± 0.40c

5.20 ± 0.49e

2.40 ± 0.40d

  1. Means in the same rows following the same letters are statistically similar (P > 0.05)