Life history and population growth parameters of Tyrophagus putrescentiae (Acari: Acaridae) on Fusarium graminearum in laboratory conditions
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Abstract:
پارامترهای زیستی کنه‌ی Tyrophagus putrescentiae (Schrank) روی قارچ Fusarium graminearum Clade در شرایط آزمایشگاهی با دمای 1 ± 25 درجه‌ی سانتی‌گراد، رطوبت نسبی 5 ± 60 درصد و دوره‌ی نوری 16 ساعت روشنایی و 8 ساعت تاریکی مورد مطالعه قرار گرفت. طول دوره‌ی جنینی، لاروی، پورگی و طول عمر بالغین به ترتیب 06/0 ± 22/2، 12/0 ± 46/3، 16/0 ± 84/4 و 9/0 ± 05/10 روز بدست آمد. طول دوران زندگی نرها و ماده‌ها به ترتیب 21/1 ± 22/22 و 37/1 ± 08/19 روز محاسبه شد. طول دوران قبل از تخم‌ریزی، تخم‌ریزی و بعد از تخم‌ریزی به ترتیب22/2، 77/5 و 4/1 روز بدست آمد. نرخ ناخالص و خالص باروری به ترتیب 2/76 و 23 تخم به ازای هر ماده در هر نسل بود. نرخ خالص تولید مثل 5/12 تخم ماده به ازای هر ماده در هر نسل و متوسط میزان تخم‌ریزی روزانه 7/5 تخم به ازای هر ماده تعیین شد. نرخ ذاتی و نهایی افزایش جمعیت به ترتیب 15/0 و 16/1 روز1- محاسبه گردید. متوسط مدت زمان یک نسل (T) و مدت زمان دو برابر شدن جمعیت (DT) به ترتیب 74/16 و 59/4 روز بدست آمد. 78٪ جمعیت را تخم‌ها و لاروها و 22٪ آن را پوره‌ها و افراد بالغ تشکیل می‌دادند.
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Journal title
volume 26 issue 2
pages 7- 18
publication date 2007-02-20
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