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Effect of Photoperiod and Temperature on the Life Table Parameters of Onion Thrips (Thrips tabaci) Lineages Cover

Effect of Photoperiod and Temperature on the Life Table Parameters of Onion Thrips (Thrips tabaci) Lineages

Open Access
|Oct 2022

Figures & Tables

Figure 1

Effects of temperature and photoperiod on the survival rate of L1, L2, and T lineages of adult females at 23 °C under long and short daylight and at 15 °C under short daylight
Effects of temperature and photoperiod on the survival rate of L1, L2, and T lineages of adult females at 23 °C under long and short daylight and at 15 °C under short daylight

Incidence of reproductive diapause among the lineages at different treatments (%)

LineagesTreatments
I (23 °C, 16L/8D)II (23 °C, 8L/16D)III (15 °C, 8L/16D)
L10050 (n = 11/22)
L20042 (n = 16/38)
T040a (n = 21/50)28a (n = 14/50)

Effect of photoperiod and temperature on oviposition period of T_ tabaci lineages (days) (mean ± 95% confidence interval)

LineageTreatments
I (23 °C, 16L/8D)II (23 °C, 8L/16D)III (15 °C, 8L/16D)
L123.60 ± 1.9b (n = 49)14.02 ± 1.8a (n = 50)10.72 ± 2.7a (n = 11)
L220.31 ± 1.5b (n = 48)16.80 ± 1.9ab (n = 50)13.75 ± 5.4a (n = 22)
T20.50 ± 1.5b (n = 49)14.90 ± 3.2a (n = 29)14.71 ± 3.1a (n = 32)

Effect of photoperiod and temperature on longevity of reproducing females of T_ tabaci lineages (days) (mean ± 95% confidence interval)

LineageTreatments
I (23 °C, 16L/8D)II (23 °C, 8L/16D)III (15 °C, 8L/16D)
L129.51 ± 2.2a (n = 49)30.90 ± 1.3a (n = 50)48.90 ± 8.7b (n = 11)
L225.69 ± 1.8a (n = 48)28.52 ± 2.5a (n = 50)34.22 ± 6.3b (n = 22)
T29.76 ± 1.2a (n = 49)38.06 ± 4.3b (n = 29)76.89 ± 12.4c (n = 32)

Effect of photoperiod and temperature on fecundity of T_ tabaci lineages (in days) (mean ± 95% confidence interval)

LineageTreatments
I (23 °C, 16L/8D)II (23 °C, 8L/16D)III (15 °C, 8L/16D)
L189.30 ± 5.5a (n = 49)40.14 ± 5.4b (n = 50)7.00 ± 1.6c (n = 11)
L280.31 ± 8.3a (n = 48)46.94 ± 4.3b (n = 50)13.85 ± 4.9c (n = 22)
T86.76 ± 6.6a (n = 49)39.34 ± 10.3b (n = 29)17.87 ± 3.3c (n = 32)

The number of mothers in particular combinations

Treatment numberTreatment temperature and photoperiodNumber of mothers for linaeges L1, L2, and T, respectively
I23 °C, 16L/8D48, 49, 48
II23 °C, 8L/16D50, 50, 29
III15 °C, 8L/16D11, 22, 32

Effect of photoperiod and temperature on the preoviposition period of T_ tabaci lineages (days) (mean ± 95% confidence interval)

LineagesTreatments
I (23 °C, 16L/8D)II (23 °C, 8L/16D)III (15 °C, 8L/16D)
L12.55 ± 0.2a (n = 49)2.78 ± 0.4a (n = 50)27.72 ± 6.9b (n = 11)
L22.40 ± 0.3a (n = 48)4.50 ± 0.5b (n = 50)17.80 ± 2.8c (n = 22)
T2.76 ± 0.3a (n = 49)3.37 ± 1.1a (n = 29)9.03 ± 1.6b (n = 32)
DOI: https://doi.org/10.2478/johr-2022-0015 | Journal eISSN: 2353-3978 | Journal ISSN: 2300-5009
Language: English
Page range: 87 - 94
Submitted on: Apr 1, 2022
Accepted on: Aug 1, 2022
Published on: Oct 15, 2022
Published by: National Institute of Horticultural Research
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2022 Wondimagegn Atilaw Woldemelak, published by National Institute of Horticultural Research
This work is licensed under the Creative Commons Attribution 4.0 License.