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The effects of Pirimicarb Insecticide on the Physiological Indices of Rapeseed Plant | ||
| Journal of Entomological Society of Iran | ||
| مقاله 4، دوره 46، شماره 2، تیر 2026، صفحه 181-192 اصل مقاله (496.89 K) | ||
| نوع مقاله: Paper, English | ||
| شناسه دیجیتال (DOI): 10.22034/jesi.46.2.4 | ||
| نویسندگان | ||
| Mohammad Heidari1؛ Behzad Habibpour1؛ Hadi Mosallanejad* 2؛ Habibolah Roshanfekr3 | ||
| 1Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran | ||
| 2Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran | ||
| 3Department of Plant Production and Genetics, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Iran | ||
| چکیده | ||
| This study investigated the physiological effects of Pirimicarb insecticide application on early-stage rapeseed (Brassica napus L. cv. Hyola 401) plants. Field-grown plants at the 2-4 leaf stage received foliar applications of Pirimicarb (500 mg L⁻¹) or distilled water (control) and were subsequently maintained under controlled greenhouse conditions. Physiological measurements conducted 72 hours post-treatment revealed significant increases in total phenolic compounds (+37.4%, P=0.008) and chlorophyll b content (+30.4%, P=0.006) in treated plants. No significant changes were observed in hydrogen peroxide (H₂O₂) levels (+21.1%, P=0.358), malondialdehyde (MDA) concentrations (−14.0%, P=0.086), chlorophyll a (−5.1%, P=0.591), total chlorophyll (+0.8%, P=0.924), or carotenoids (−9.3%, P=0.574). Correlation analysis (n=8 replications) demonstrated a strong positive relationship between phenolic compounds and chlorophyll b (r=0.902, P=0.002), suggesting coordinated metabolic regulation. Strong correlations among core photosynthetic pigments indicated maintained functional integrity of the photosynthetic apparatus. These findings demonstrate that early-stage rapeseed plants respond to Pirimicarb exposure through specific metabolic adjustments involving phenolic biosynthesis and chlorophyll b accumulation, without evidence of oxidative damage or photosynthetic impairment. The results support continued integration of Pirimicarb in integrated pest management systems for rapeseed cultivation. | ||
| کلیدواژهها | ||
| Carbamate؛ physiological indices؛ plant physiology؛ integrated pest management | ||
| عنوان مقاله [English] | ||
| اثرات حشره کش پیریمیکارب روی شاخص های فیزیولوژیک گیاه کلزا | ||
| نویسندگان [English] | ||
| محمد حیدری1؛ بهزاد حبیب پور1؛ هادی مصلی نژاد2؛ حبیب اله روشنفکر3 | ||
| 1گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، ایران | ||
| 2موسسه تحقیقات گیاه پزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی تهران، ایران | ||
| 3گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، ایران. | ||
| چکیده [English] | ||
| این مطالعه به بررسی اثرات فیزیولوژیک حشرهکش پیریمیکارب بر گیاه کلزا در مراحل اولیه رشد میپردازد. گیاهان رشدیافته در مزرعه، در مرحله 2تا4 برگی، محلولپاشی برگی پیریمیکارب (500 میلیگرم بر لیتر) یا آب مقطر (شاهد) دریافت کردند و سپس تحت شرایط کنترلشده گلخانه نگهداری شدند. اندازهگیریهای فیزیولوژیکی که 72 ساعت پس از تیمار انجام شد، افزایش معناداری را در ترکیبات فنولی کل (۴٪/۳۷، ۰۰۸/۰ P=) و کلروفیلb (۴٪/۳۰، ۰۰۶/۰P=) در گیاهان تیمارشده نشان داد. تغییرات معناداری در سطوح پراکسید هیدروژن (H₂O₂) (۱٪/۲۱+، ۳۵۸/۰ P=). مالوندیآلدئید (۰٪/۱۴-، ۰۸۶/۰ P=)، کلروفیل a (۱٪/۵-، ۵۹۱/۰ P=)، کلروفیل کل (۸٪/۰+، ۹۲۴/۰ P=)، یا کاروتنوئیدها (٪۳/۹-، ۵۷۴/۰ P=)، مشاهده نشد. تحلیل همبستگی (۸ n=تکرار) یک رابطه مثبت قوی میان ترکیبات فنولی و کلروفیل b (۹۰۲/ r=،۰۰۲/۰ P=). را نشان داد که بیانگر تنظیم متابولیکی هماهنگ است. همبستگیهای قوی میان رنگیزههای فتوسنتزی اصلی نشاندهنده حفظ یکپارچگی عملکردی دستگاه فتوسنتزی بود. این یافتهها نشان میدهد که گیاهان کلزای مرحله اولیه رشد به قرارگیری در معرض پیریمیکارب از طریق تنظیمات متابولیکی خاص شامل بیوسنتز ترکیبات فنولی و تجمع کلروفیل b پاسخ میدهند، بدون شواهدی از آسیب اکسیداتیو یا اختلال فتوسنتزی. نتایج از ادامه استفاده از پیریمیکارب در سیستمهای مدیریت تلفیقی آفات کلزا حمایت میکند. | ||
| کلیدواژهها [English] | ||
| کاربامات, شاخصهای فیزیولوژی, فیزیولوژی گیاهی, مدیریت تلفیقی آفات | ||
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