این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Crop Protection، جلد ۴، شماره ۲، صفحات ۱۴۵-۱۵۶
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Variation of supercooling point in overwintering larvae of Scrobipalpa ocellatella (Lepidoptera: Gelechiidae)
چکیده انگلیسی مقاله The beet moth, Scrobipalpa ocellatella (Boyd) (Lepidoptera: Gelechiidae) is one of the most destructive pests of beet. The insect overwinters as larvae of different instars in beets which are left in the field. Supercooling point (SCP) of individual larvae showed broad range variation from -6 to -25 °C. In the present study, factors affecting the broad range of SCP were investigated. Larvae showed a great increase in SCP when they were induced by exogenous ice nucleation. Defensive oral discharge (DOD) decreased SCP but it had no significant effect on supercooling ability of larvae. The presence of sufficient food in guts of field collected larvae induced an increase in SCP. Therefore it could be concluded that surface moisture and food particles in the gut may act as ice nucleating agents (INAs) that cause freezing of the body fluids at higher temperatures. Furthermore, second and third instar larvae, owing to their small size, had greater capacity to supercool in comparison to fifth feeding instars. Broad range in SCPs might be due to diversity in overwintering larvae which have different capacity for supercooling.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله زهرا گنجی |
department of entomology, faculty of agriculture, tarbiat modares university, p.o. box 14115-336, tehran, iran.
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

سعید محرمی پور |
department of entomology, faculty of agriculture, tarbiat modares university, p.o. box 14115-336, tehran, iran.
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

نشانی اینترنتی http://jcp.modares.ac.ir/article_11898_41677da08eab72df1fb0b8ce55fa94ef.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات