تأثیر تأخیر کاشت لوبیا چیتی لاین COS16 بر جمعیت و خسارت Empoasca decipiens و Thrips tabaci

نوع مقاله : مدیریت آفات و بیماری‌های گیاهی

نویسندگان

1 پردیس تحقیقات و آموزش کشاورزی بروجرد، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی لرستان، سازمان تحقیقات، آموزش و ترویج کشاورزی

2 پردیس تحقیقات و آموزش کشاورزی بروجرد، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی لرستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، بروجرد

چکیده

به‌منظور بررسی اثر تاریخ کاشت بر خسارت زنجرکEmpoasca decipiens  و تریپسThrips tabaci  و عملکرد دانه و اجزای عملکرد لوبیا چیتی لاین COS16، آزمایشی در پردیس تحقیقات و آموزش کشاورزی بروجرد انجام شد. آزمایش در قالب طرح بلوک­ های کامل تصادفی با آرایش کرت ­های خرد شده با دو عامل مدیریت آفت (سمپاشی و عدم سمپاشی) به‌عنوان کرت­ های اصلی و تاریخ کاشت (اواخر اردیبهشت، اواسط خرداد و اواخر خرداد) به‌عنوان کرت­ های فرعی با چهار تکرار انجام شد. نتایج تجزیه مرکب دو ساله نشان داد که این دو آفت به استثنای عملکرد دانه، روی هیچ یک از شاخص­ه ای تعداد بذر در واحد بوته، وزن بذر در واحد بوته، وزن 100 دانه و عملکرد دانه و شاخص خسارت آفت (فقط در سال دوم) تأثیر معنی­داری نداشت. بر اساس نتایج این پژوهش، بیش­ترین شاخص­ های عملکرد (تعداد غلاف در بوته، تعداد دانه در بوته و وزن دانه در بوته) مربوط به تاریخ ­کاشت اول بود. همچنین کمترین شاخص خسارت آفت روی برگ، مربوط به تاریخ کاشت سوم بود که با تاریخ کاشت­ های اول و دوم اختلاف معنی­ دار داشت.
 

کلیدواژه‌ها


عنوان مقاله [English]

The effect of late sowing of pinto bean, line COS16 on population and damage of Empoasca decipiens and Thrips tabaci

نویسندگان [English]

  • Amir Mohseni Amin 1
  • Mohammad Hasan Kushki 2
  • mohammad Shahverdi 1
  • Mahmud Nasrollahi 1
1 Borujerd Agricultural Research and Education Campus, Lorestan Agricultural and Natural Resources Research and Education Center, AREEO
2 Borujerd Agricultural Research and Education Campus, Lorestan Agricultural and Natural Resources Research and Education Center, AREEO
چکیده [English]

In order to study the effects of sowing date and damage of two insect pest, Empoasca decipiens Paoli (Hemiptera.:Cicadellidae) and Thrips tabaci Lindeman (Thysanoptera: Thripidae) on seed yield and yield components of pinto bean, line COS16, an experiment was conducted at Boroujerd Agricultural Research and Education Campus, in  2008 and 2009. The experiment design was a split plot arranged in RCBD with 4 replications. Two pest managements (spraying with pesticide and no spraying) were assigned to main plots and three sowing date (early May, late May and mid June) were randomized to subplots. The results showed that except of seed yield, more of yield components were not significantly decreased by these pests. Results of combined analysis of variance, showed that, seed number per plant, weight of seeds per plant, 100-seed weight, seed yields and pest damage index were significantly affected by sowing dates. Based on this study, the highest yield components (pod number/plant, seed number/plant and seed weight/plant) were obtained in the first sowing date. The lowest pest damage indices was in the third sowing date, which was significantly different with the first and second sowing dates.

کلیدواژه‌ها [English]

  • Empoasca decipiens
  • line COS16
  • Pinto bean
  • sowing date
  • Thrips tabaci
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