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Alternating temperatures affect the performance of Trichogramma species.

Firake DM, Khan MA - J. Insect Sci. (2014)

Bottom Line: Fecundity and longevity of parasitoids were significantly reduced under high temperature shocks to egg-laying females.However, the effect was more severe in eggs.Overall, daily short-term temperature shocks to different developmental stages of parasitoids showed radical effects on emergence, fecundity, longevity, and sex ratio of the progeny.

View Article: PubMed Central - PubMed

Affiliation: Division of Entomology, ICAR Research Complex for NEH Region, Umiam, Meghalaya-793103, India dfirake@gmail.com.

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Mean (±SEM) adult emergence (%) of Trichogramma poliae (a) and T. chilonis (b.) under the influence of various temperature shocks during immature stages. Bars having same arena with different letters indicate statistically significant differences (P ≤ 0.05, Tukey's HSD test). High quality figures are available online.
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f02_01: Mean (±SEM) adult emergence (%) of Trichogramma poliae (a) and T. chilonis (b.) under the influence of various temperature shocks during immature stages. Bars having same arena with different letters indicate statistically significant differences (P ≤ 0.05, Tukey's HSD test). High quality figures are available online.

Mentions: Adult emergence of parasitoids (G0). Adult emergence of T. poliae and T. chilonis was also significantly affected (F = 1148.24, P < 0.01, df = 5, and F = 934.58, P < 0.01, df = 5, respectively) as a result of daily short-term exposure to higher temperatures (Figure 2). Furthermore, adult emergence was significant ly affected when egg-stage T. poliae (F = 1682.17, P < 0.01, df = 2) and T. chilonis (F = 1600, P < 0.01, df = 2) were exposed. Significant differences were also noticed between different temperature shocks and life stages of T. poliae (F = 360.77, P < 0.01, df = 10) and T. chilonis (F = 251.51, P < 0.01, df = 10).


Alternating temperatures affect the performance of Trichogramma species.

Firake DM, Khan MA - J. Insect Sci. (2014)

Mean (±SEM) adult emergence (%) of Trichogramma poliae (a) and T. chilonis (b.) under the influence of various temperature shocks during immature stages. Bars having same arena with different letters indicate statistically significant differences (P ≤ 0.05, Tukey's HSD test). High quality figures are available online.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4206293&req=5

f02_01: Mean (±SEM) adult emergence (%) of Trichogramma poliae (a) and T. chilonis (b.) under the influence of various temperature shocks during immature stages. Bars having same arena with different letters indicate statistically significant differences (P ≤ 0.05, Tukey's HSD test). High quality figures are available online.
Mentions: Adult emergence of parasitoids (G0). Adult emergence of T. poliae and T. chilonis was also significantly affected (F = 1148.24, P < 0.01, df = 5, and F = 934.58, P < 0.01, df = 5, respectively) as a result of daily short-term exposure to higher temperatures (Figure 2). Furthermore, adult emergence was significant ly affected when egg-stage T. poliae (F = 1682.17, P < 0.01, df = 2) and T. chilonis (F = 1600, P < 0.01, df = 2) were exposed. Significant differences were also noticed between different temperature shocks and life stages of T. poliae (F = 360.77, P < 0.01, df = 10) and T. chilonis (F = 251.51, P < 0.01, df = 10).

Bottom Line: Fecundity and longevity of parasitoids were significantly reduced under high temperature shocks to egg-laying females.However, the effect was more severe in eggs.Overall, daily short-term temperature shocks to different developmental stages of parasitoids showed radical effects on emergence, fecundity, longevity, and sex ratio of the progeny.

View Article: PubMed Central - PubMed

Affiliation: Division of Entomology, ICAR Research Complex for NEH Region, Umiam, Meghalaya-793103, India dfirake@gmail.com.

Show MeSH
Related in: MedlinePlus