پارامترهای رشد جمعیت کنۀ میوۀ خشک Carpoglyphus lactis (Acari: Carpoglyphidae) روی مخمر نان در دو دمای مختلف

نوع مقاله : مقاله پژوهشی


1 استادیار، گروه گیاه‌پزشکی، دانشکدۀ کشاورزی، دانشگاه زنجان، زنجان

2 دانش‌آموختۀ کارشناسی ارشد گروه گیاه‌پزشکی، دانشکدۀ کشاورزی، دانشگاه زنجان، زنجان

3 گروه تنوع زیستی، پژوهشکدۀ علوم محیطی، پژوهشگاه علوم و تکنولوژی پیشرفته و علوم محیطی، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته، کرمان


کنۀ میوۀ خشک (L) Carpoglyphus lactisعلاوه بر اینکه از آفات مهم و اقتصادی برخی محصولات انباری به‌ویژه خشکبار به‌شمار می‌رود، به عنوان یک طعمۀ جایگزین برای پرورش انبوه کنه‌های شکارگر به‌صورت تجاری نیز کاربرد دارد. در این مطالعه پارامترهای جدول زندگی کنۀ میوۀ خشک روی مخمر نان در شرایط آزمایشگاهی و در دو دمای 20 و 25 درجۀ سلسیوس، رطوبت نسبی 5±70 درصد و تاریکی مطلق بر اساس تئوری جدول زندگی دوجنسی سن- مرحله بررسی شد. نرخ ذاتی افزایش جمعیت (r)، نرخ متناهی افزایش جمعیت (λ) و متوسط زمان یک نسل (T) در دمای 20 درجۀ سلسیوس به‌ترتیب 287/0 روز1-، 333/1 روز1- و 7/16 روز و در دمای 25 درجۀ سلسیوس به‌ترتیب 383/0 روز1-، 467/1 روز1- و 87/11 روز محاسبه و اختلاف معناداری بین پارامترهای مذکور در دو دما مشاهده شد (01/0P<). بین مقادیر نرخ ناخالص تولید مثل (GRR) نیز اختلاف معناداری در دو دما وجود داشت (05/0P<) ولی نرخ خالص تولید مثل (R0) در دو دما اختلاف معناداری نداشت (05/0P>). اطلاعات حاصل از این پژوهش می‌تواند در زمینۀ بهینه‌سازی شرایط پرورش انبوه کنۀ C. lactis به‌کار رود.


عنوان مقاله [English]

Demographic parameters of dried fruit mite Carpoglyphus lactis (L.) (Acari: Carpoglyphidae) on bakrer's yeast in two different temperatures

نویسندگان [English]

  • Hamid Sarraf Moayeri 1
  • Hosein Pourasgari 2
  • Aurang Kavousi 1
  • Maryam Rashki 3
1 Assistant Professor, Department of Plant Protection, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
2 M.Sc. Student of Department of Plant Protection, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
3 Department of Biodiversity, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
چکیده [English]

Dried fruit mite, Carpoglyphus lactis (L) in addition to be considered as one of the serious and economic pests of some stored products also is used as an alternative prey for commercially mass rearing of predatory mites. In this study, life table parameters of dried fruit mite were examined on bakrer's yeast under laboratory conditions at 20 and 25 °C, 70±5 relative humidity and full darkness, based on age-stage, two-sex life table theory. The intrinsic rate of increase (r), finite rate of population increase (λ) and the mean generation time (T) at 20 °C were 0.287 day-1, 1.333 day-1 and 16.7 days, respectively and at 25 °C were 0.383 day-1, 1.467 day-1 and 11.87 days. A significant difference was observed between mentioned parameters in two temperatures (P< 0.01). Likewise there was a significant difference between the value of gross reproductive rate (GRR) (P<0.05), but no significant difference was observed between net reproductive rate (R0) in two temperatures (P> 0.05). The obtained information in this study will be useful for the optimization of C. lactis mass rearing conditions.

کلیدواژه‌ها [English]

  • Two-sex life table
  • intrinsic rate of increase
  • Fecundity
  • Developmental time
  • Carpoglyphus lactis
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