TWO-SEX LIFE TABLE OF NYSIUS CYMOIDES (SPINOLA) (HEM.: LYGAEIDAE) AT DIFFERENT PHOTOPERIODS UNDER LABORATORY CONDITIONS

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MOLLASHAHI M.; SAHRAGARD A.; MOHAGHEGH J.; HOSSEINI R.; SABOURI H.

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Journal: PLANT PEST RESEARCH Year:2017 | Volume:6 | Issue:4 Page(s): 73-87

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Title

TWO-SEX LIFE TABLE OF NYSIUS CYMOIDES (SPINOLA) (HEM.: LYGAEIDAE) AT DIFFERENT PHOTOPERIODS UNDER LABORATORY CONDITIONS

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Keywords

TWO-SEX LIFE TABLEQ2

NYSIUS CYMOIDESQ2

PHOTOPERIODQ1

Abstract

The life table parameters are the most appropriate index for comparing the fitness of a population to diverse climatic and food-related conditions. In this study, the effect of three PHOTOPERIODs of 8: 16, 12: 12 and 16: 8 h (L: D) on the life table parameters of NYSIUS CYMOIDES was studied under laboratory conditions (24±1oC, 65±5% RH). Data were analyzed based on the age-stage, TWO-SEX LIFE TABLE theory. Immaturedevelopmental times of N. cymoides under 12-and 8h PHOTOPERIODs were significantly shorter than that oftreatment with 16h PHOTOPERIOD. The adult pre-oviposition period (APOP), total pre-oviposition period (TPOP), mean fecundity and adult longevity reared under three PHOTOPERIODs showed significantdifferences. The highest and lowest fecundity were 56.65 eggs and 10.1 eggs at 12- and 8h PHOTOPERIODs, respectively. Intrinsic rates of increase (r) were 0.011±0.004, 0.044 ± 0.003 and 0.039 ± 0.003 (day-1) at8-, 12- and 16h (L), respectively; and net reproductive rates (R0) were 2.02 ± 0.52, 13.02 ± 2.65 and 11.41 ± 2.12 (off spring per individual) for the respective treatments. The mean generation times (T) were56.11 ± 1.26, 57.16 ± 1.53 and 62.32 ± 1.41 days, at 8-, 12- and 16h (L), respectively. The life expectancy (exj), survival rate (sxj) and cumulative reproductive rate (Rx) at 12-and 16h (L) were higher than those of8h PHOTOPERIOD. Generally, 12- and 16h PHOTOPERIODs were more reasonable for N. cymoides rearin gcomparing with 8h PHOTOPERIOD.

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APA: Copy

MOLLASHAHI, M., SAHRAGARD, A., MOHAGHEGH, J., HOSSEINI, R., & SABOURI, H.. (2017). TWO-SEX LIFE TABLE OF NYSIUS CYMOIDES (SPINOLA) (HEM.: LYGAEIDAE) AT DIFFERENT PHOTOPERIODS UNDER LABORATORY CONDITIONS. PLANT PEST RESEARCH, 6(4), 73-87. SID. https://sid.ir/paper/234954/en

Vancouver: Copy

MOLLASHAHI M., SAHRAGARD A., MOHAGHEGH J., HOSSEINI R., SABOURI H.. TWO-SEX LIFE TABLE OF NYSIUS CYMOIDES (SPINOLA) (HEM.: LYGAEIDAE) AT DIFFERENT PHOTOPERIODS UNDER LABORATORY CONDITIONS. PLANT PEST RESEARCH[Internet]. 2017;6(4):73-87. Available from: https://sid.ir/paper/234954/en

IEEE: Copy

M. MOLLASHAHI, A. SAHRAGARD, J. MOHAGHEGH, R. HOSSEINI, and H. SABOURI, “TWO-SEX LIFE TABLE OF NYSIUS CYMOIDES (SPINOLA) (HEM.: LYGAEIDAE) AT DIFFERENT PHOTOPERIODS UNDER LABORATORY CONDITIONS,” PLANT PEST RESEARCH, vol. 6, no. 4, pp. 73–87, 2017, [Online]. Available: https://sid.ir/paper/234954/en

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