تاثیر کاربرد برگی متانول بر عملکرد و شاخص‌های ریخت شناسی کنجد ( Sesamum indicum. L)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری فیزیولوژی گیاهان زراعی دانشگاه صنعتی شاهرود

2 دانشیار، دانشگاه شاهرود، دانشکده کشاورزی، گروه زراعت و اصلاح نباتات، تخصص: اکولوژی کشاورزی، همزیستی میکوریزایی، باکتری های محرک رشد، تنش های محیطی

3 دانشیار دانشگاه صنعتی شاهرود

4 دانشیار، دانشگاه صنعتی شاهرود، تخصص: اکولوژی گیاهان زراعی، اکولوژی بذر، گیاهان زراعی، علف های هرز و عملکرد و اجزای عملکرد گیاهان زراعی

چکیده

چکیده:
به منظور بررسی اثر غلظت (صفر، 20،40 و 60 درصد) و زمان محلول‌پاشی متانول (قبل از گلدهی و بعد از گلدهی) بر خصوصیات زراعی و ریخت‌شناسی کنجد، آزمایشی به صورت فاکتوریل بر پایه طرح بلوک‌های کامل تصادفی با چهار تکرار در مزرعه تحقیقاتی دانشگاه جیرفت در سال 1395 انجام شد. نتایج نشان داد عامل غلظت متانول به طور معنی‌داری تمام صفات مورد مطالعه را تحت تاثیر قرار داد به گونه‌ای که بیشترین و کمترین میانگین بدست آمده به ترتیب مربوط به غلظت 40 درصد و شاهد بود. عامل زمان محلول‌پاشی نیز بر قطر ساقه اصلی، تعداد دانه، شاخص‌برداشت و وزن هزار دانه معنی‌دار بود و بیشترین و کمترین میانگین صفات به ترتیب در مرحله قبل و بعد از گلدهی بدست آمد. اثر متقابل غلظت و زمان محلول‌پاشی بر شاخص سطح برگ، تعداد برگ، تعداد کپسول، تعداد و طول شاخه‌های فرعی، ارتفاع بوته، وزن خشک و عملکرد دانه معنی‌دار شد. بیشترین میانگین این صفات در محلول‌پاشی متانول با غلظت 40 درصد در مرحله قبل از گلدهی بدست آمد. بر اساس یافته‌های این تحقیق می‌توان چنین نتیجه‌گیری کرد که متانول می تواند سبب افزایش میزان و کارایی فتوسنتز شده و تا حدود زیادی خصوصیات زراعی و ریخت‌شناسی کنجد را بهبود بخشید.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The effect of methanol foliar application on yield and morphological characteristics of sesame (Sesamum indicum.L).

نویسندگان [English]

  • hamid moghbeli 1
  • Ahmad Gholami 2
  • mohamadreza Amerian 3
  • Hamid Abbasdokht 4
1 shahrood university
2 Associate Professor, Shahrood University, Faculty of Agriculture, Department of Agronomy and Plant Breeding
3 Associate Professor, Shahrood University, Faculty of Agriculture, Department of Agronomy and Plant Breeding
4 Associate Professor, Shahrood University, Faculty of Agriculture, Department of Agronomy and Plant Breeding
چکیده [English]

Abstract:
In order to evaluate the effects of methanol concentration (0,20-40, 60% v/v) and methanol spraying time (before and after flowering) on yield and some morphological characteristics of sesame, a field experiment was performed at the research farm of Jiroft University in 2016. The trials arranged in a factorial experiment based on a randomized complete block design with four replications. Based on results, Methanol concentration had significant effects on all studied characteristics in experiment, so that the highest and lowest mean value was related to the 40% methanol concentration and control respectively. Methanol spraying time significantly influenced on stem diameter, seed number, harvest index and 1000 seed weight so that the highest and lowest mean was obtained at before and after flowering respectively. The interaction of methanol concentration and methanol spraying time were significant on leaf area index, leaf number, length branches, number of lateral branches, number of capsules, seed number, plant height, shoot dry weight and seed yield. The best treatment in this study was a foliar application with 40% methanol concentration in the pre-flowering stage. According to the results, it can be concluded that the use of methanol could greatly improve the yield, and morphological characteristics of sesame.

کلیدواژه‌ها [English]

  • flowering stage
  • Foliar Application
  • leaf area index
  • Seed yield
  • shoot dry weight
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