SEX RATIO AND BIOTIC POTENTIAL OF TRICHOGRAMMA SPP. IN NATURAL CONDITION OF CENTRAL MAZANDARAN

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GHAHARI H.; OSTOVAN HADI; AMOU OUGHLI TABARI M.; SAKENIN CHELAVA H.; HAJI AMIRI M.

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Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:2008 | Volume:31 | Issue:1 Page(s): 99-110

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Title

SEX RATIO AND BIOTIC POTENTIAL OF TRICHOGRAMMA SPP. IN NATURAL CONDITION OF CENTRAL MAZANDARAN

Author(s)

Keywords

SEX RATIOQ3

BIOTIC POTENTIALQ3

TRICHOGRAMMAQ3

CLIMATEQ2

VARIETYQ2

CENIFALAFAZANDARANQ3

Abstract

Study on the BIOTIC POTENTIAL and SEX RATIO of parasitoids is one of the fundamental researches in biological control programs. TRICHOGRAMMA spp. are the most important and powerful egg parasitoids of striped stem borer (Chilo suppressalis Walker; Lepidoptera: Pyralidae) in Mazandaran, Northern Iran. Therefore, a research was conducted in order to study the SEX RATIO and BIOTIC POTENTIAL of TRICHOGRAMMA spp. In natural condition of central Mazandaran. In the studies of SEX RATIO, the efii;ct of three varieties including, Fajr, Khazar and Nemat, and the effect of three different CLIMATEs including, (Low-, Middle- and High- altitudes) were evaluated. To evaluate the BIOTIC POTENTIAL, the effect of two factors including the mentioned CLIMATEs and varieties were studied on the parasitoid. The results indicated that the rice VARIETY had significant effect on the SEX RATIO of the parasitoids, as the number of female offspring was higher in Nemat than Khazar and Fajr. Clutch size of host (c. suppressalis) was effective on SEX RATIO of TRICHOGRAMMA spp., as the produced males in small egg masses were higher than the females (1.27 male to 1 female), but more female progenies were reared from big clutch size (1 male to 1.39 female). Of the two factors including CLIMATEs and rice varieties, the CLIMATEs had the effective role on the BIOTIC POTENTIAL of TRICHOGRAMMA spp. but the varieties had no significant effect. In relation to the CLIMATE, the percentage produced progenies was higher in the Low- and High-altitudes that the Mid-altitudes.

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References

FACTORS AFFECTING THE ADOPTION OF TRICHOGRAMMA APPLICATION IN CONTROLLING CHILO SUPPRESSALIS BY RICE GROWERS IN AMOL

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APA: Copy

GHAHARI, H., OSTOVAN, HADI, AMOU OUGHLI TABARI, M., SAKENIN CHELAVA, H., & HAJI AMIRI, M.. (2008). SEX RATIO AND BIOTIC POTENTIAL OF TRICHOGRAMMA SPP. IN NATURAL CONDITION OF CENTRAL MAZANDARAN. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 31(1), 99-110. SID. https://sid.ir/paper/24650/en

Vancouver: Copy

GHAHARI H., OSTOVAN HADI, AMOU OUGHLI TABARI M., SAKENIN CHELAVA H., HAJI AMIRI M.. SEX RATIO AND BIOTIC POTENTIAL OF TRICHOGRAMMA SPP. IN NATURAL CONDITION OF CENTRAL MAZANDARAN. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 2008;31(1):99-110. Available from: https://sid.ir/paper/24650/en

IEEE: Copy

H. GHAHARI, HADI OSTOVAN, M. AMOU OUGHLI TABARI, H. SAKENIN CHELAVA, and M. HAJI AMIRI, “SEX RATIO AND BIOTIC POTENTIAL OF TRICHOGRAMMA SPP. IN NATURAL CONDITION OF CENTRAL MAZANDARAN,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 31, no. 1, pp. 99–110, 2008, [Online]. Available: https://sid.ir/paper/24650/en

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