اثر قطع آبیاری در مراحل مختلف رشد زایشی بر عملکرد، اجزای عملکرد و روغن سه رقم گلرنگ بهاره

نوع مقاله : علمی - پژوهشی

نویسندگان

چکیده

با توجه به نقش مهم روغن در تغذیه بشر و همچنین محدودیت منابع آب و اثر آن بر تولید و عملکرد روغن در گیاهان دانه روغنی، آزمایشی به منظور بررسی پاسخ ارقام گلرنگ بهاره به سطوح قطع آبیاری در مراحل مختلف رشد زایشی، به صورت کرت ای خرد شده در قالب طرح پایه بلوک های کامل تصادفی و در چهار تکرار در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه بیرجند در سال 1387 انجام شد. کرتهای اصلی شامل چهار سطح قطع آبیاری (آبیاری کامل، آبیاری تا مرحله دانه بندی، آبیاری تا مرحله گلدهی و آبیاری تا مرحله تکمه دهی) و کرت های فرعی، سه رقم گلرنگ بهاره (محلی اصفهان، اصفهان28 و IL111) بود. نتایج نشان داد که تیمار آبیاری تا مرحله تکمه دهی باعث کاهش معنی دار تعداد طبق در بوته، تعداد طبق بارور در بوته، تعداد دانه در طبق، وزن هزار دانه، عملکرد دانه، درصد و عملکرد روغن شد. در بین ارقام نیز رقم محلی اصفهان بیشترین تعداد طبق، تعداد طبق بارور و تعداد دانه در طبق را دارا بود و رقم IL111 در نقطه مقابل آن قرار گرفت. بیشترین و کمترین عملکرد دانه و روغن نیز به ترتیب مربوط به ارقام محلی اصفهان و IL111 بود. همچنین در بین اجزای عملکرد، تعداد طبق بیشترین همبستگی را با عملکرد دانه داشت. به طور کلی نتایج این بررسی نشان داد که رقم محلی اصفهان در تمامی رژیم های قطع آبیاری عملکرد دانه بیشتری تولید نمود، بنابراین این رقم به دلیل بومی بودن و تطابق پذیری بیشتر آن به شرایط ایران، امکان تولید عملکردهای بالاتر را در مقایسه با سایر ارقام در شرایط کمبود آب فراهم می ند.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of irrigation disruption in different reproductive growth stages on yield, yield components and oil content in three spring safflower cultivars

نویسندگان [English]

  • Bibi elaheh Moosavifar
  • Mohammad Ali Behdani
  • Majid Jami Alahmadi
  • Mohammad Saeed Hosaini Bojd
چکیده [English]

Oil has an important role in human food. An experiment was conducted in order to evaluate the response of spring genotypes of safflower to irrigation disruption in reproductive growth different stages, in a spilt plot arrangement based on randomized complete block design with four replications at Research Farm, Faculty of Agriculture, University of Birjand during 2008. Irrigation regimes (full irrigation = whole season irrigation, irrigation until grain filling, irrigation until flowering, and irrigation until heading-bud) and cultivars (Mahali Isfahan (a local variety), Isfahan28 and IL111) were arranged in main plots and subplots, respectively. Results showed that irrigation until heading-bud stage caused a significant reduction in number of total and fertile head per plant, number of seeds per head, 1000-seed weight, seed yield and oil content and yield. Among cultivars, Mahali Isfahan had the most number of total and fertile head per plant and number of seeds per head and IL111 showed just the reverse response. Also between yield components, number of total head per plant showed the highest correlation with yield. According to the results, Mahali Isfahan variety in all of the irrigation disruption regimes produced the highest kernel yield. Therefore, due to the nativeness of this cultivar and high adaptation to this arid climatic zone, provide an opportunity for producing higher yields in comparison with other cultivars under water stress.

کلیدواژه‌ها [English]

  • Industrial crop
  • Oil
  • Seed yield
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