اثر همزمان سطوح مختلف ایندول بوتیریک اسید و تلقیح باکتری‌های محرک رشد بر برخی صفات رشدی و بیوشیمیایی نهال زیتون (Olea europaea L.)

نوع مقاله: پژوهشی

نویسندگان

1 گروه گیاه پزشکی، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

2 گروه باغبانی، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

چکیده

به منظور ارزیابی اثر سطوح مختلف ایندول بوتیریک اسید (IBA) و سویه­های باکتری Pseudomonas fluorescens  آزمایشی به­صورت فاکتوریل در قالب یک طرح کاملا تصادفی با دو فاکتور و سه تکرار انجام شد. در فاکتور اول تاثیر سه سطح از هورمون IBA (صفر، ۲۰۰۰ و ۴۰۰۰ میلی­گرم در لیتر) و در فاکتور دوم تاثیر دو سویه­ی  R5و R64 از باکتری P. fluorescens بر رقم کنسروالیا (Olea europaea L.cv. Conservaliya) نهال زیتون مورد بررسی قرار گرفت. نتایج نشان داد که اثر تلقیح باکتریایی با سویه R5، وزن خشک اندام هوایی و ریشه، وزن خشک کل، غلظت نیتروژن و جذب فسفر را نسبت به شاهد افزایش داد ولی بین سویه­های R5 و R64 از نظر کلروفیل کل اختلاف معنی‌داری وجود نداشت. درسطح ۲۰۰۰ میلی­گرم در لیتر IBA نیز وزن خشک اندام هوایی و ریشه­، غلظت نیتروژن، کلروفیل کل و وزن خشک کل نسبت به سطح صفر افزایش یافت، در حالی که حداکثر جذب فسفر در سطح ۴۰۰۰ میلی­گرم در لیتر IBA به­دست آمد. اثر متقابل IBA و باکتری نشان داد که در صفات مورفولوژیک و جذب و غلظت عناصر، حداکثر میانگین در تیمار ۲۰۰۰ میلی­گرم در لیتر IBA و سویه R5 وجود دارد. با توجه به نتایج به­دست­آمده برای بهبود ریشه­زایی زیتون، کاربرد توام تیمار ۲۰۰۰ میلی­گرم در لیتر IBA و سویه R5 پیشنهاد می‌شود.

کلیدواژه‌ها


عنوان مقاله [English]

Contemporary effect of different levels of indole butyric acid and inoculation with auxin-producer bacteria of on some growth and biochemical traits of olive (Olea europaea L.) scion

نویسندگان [English]

  • Mohammad Reza Safari Motlagh 1
  • Behzad Kaviani 2
  • Seyyed Ahmad Mousavi Mohammadi 2
1 Department of Plant Protection, Faculty of Agriculture, Rasht Branch, Islamic Azad University, Rasht, Iran
2 Department of Horticultural Science, Faculty of Agriculture Rasht Branch, Islamic Azad University, Rasht, Iran
چکیده [English]

In order to investigate the effect of different levels of of IBA and strains of Pseudomonas fluorescens bacteria, an experiment was conducted as factorial with completely randomized design containing two factors and three replications. In the first factor, effect of three levels of IBA (0, 2000 and 4000 mg/ ml) and in the second one effect of two strains of P. fluorescens (R5 and R64) on olive (Olea europaea cv. conservaliya) were investigated. Results showed that bacterial inoculation with R5 strains increased shoot and root dry weight, total dry weight, nitrogen concentration and phosphorus uptake compared to control, but there was no significant difference between R5 and R64 strains in terms of total chlorophyll. The 2000 mg/ml IBA also increased shoot and root dry weight, nitrogen concentration, total chlorophyll and total dry weight related to control, while the maximum phosphorus uptake was obtained in 4000 mg/ml IBA. The interaction effect of IBA and bacteria showed that in morphological characteristics and uptake and concentration of elements, maximum average were obtained in 2000 mg/ml IBA and R5 strain treatment. According to the obtained results, the application of both of 2000 mg/ml IBA and R5 strain for improvement of rooting is recommended.

کلیدواژه‌ها [English]

  • Cutting rooting
  • Nitrogen and phosphorus uptake
  • Olive
  • Plant growth promotion bacteria
  • Pseudomonas

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