اثر باکتری‌های تأمین‌کننده نیتروژن و فسفر بر ویژگی‌های نشای گوجه‌فرنگی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

2 دانشجوی دکتری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

3 استادیار، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

چکیده

به منظور بررسی اثر باکتری­های تأمین‌کننده­ی نیتروژن و فسفر بر ویژگی­های نشاء گوجه‌فرنگی، آزمایشی به‌صورت فاکتوریل در قالب طرح کاملا تصادفی با سه تکرار در اسفند و فروردین ماه سال 139۵-۱۳۹۴ در گلخانه دانشگاه علوم کشاورزی و منابع طبیعی گرگان انجام شد. عامل اول، تیمار کود بیولوژیک در پنج سطح (بدون مصرف، آزوسپریلیوم بذرمال، سودوموناس بذرمال، آزوسپریلیوم خاک مصرف، سودوموناس خاک مصرف) و عامل دوم، آبیاری در دو سطح (چهار نوبت در روز و دو نوبت در روز) بود. در این پژوهش از باکتری­های آزوسپریلیوم براسیلنس سویه (of) و سودوموناس فلورسنس سویه (p-169) استفاده شد. نتایج نشان داد استفاده از کودهای بیولوژیک آزوسپریلیوم براسیلنس و سودوموناس فلورسنس به صورت خاک مصرف، توانست نسبت به تیمار بدون مصرف باکتری، بسیاری از خصوصیات مطلوب رشد مانند درصد جوانه­زنی، طول ساقه، وزن خشک اندام­هوایی، وزن تر ریشه، کاهش زمان تا ظهور برگ ششم و افزایش آنتوسیانین بافت (به ترتیب به میزان 67/1، 9/2، 05/19، 25/9، 38/3 و 42/18 درصد نسبت به شاهد) را بهبود دهد. بنابراین می­توان تیمارهای آزوسپریلیوم براسیلنس و سودوموناس فلورسنس خاک مصرف را تحت شرایط رژیم آبیاری معمولی در جهت بهبود کیفیت، کوتاه کردن دوره پرورش، کاهش خسارت تنش آبی و افزایش تحمل به تنش ناشی از انتقال از خزانه به زمین اصلی در تولید نشاء گوجه‌فرنگی توصیه نمود.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of nitrogen and phosphorus supplier bacteria on the characteristics of ‎tomato seedling

نویسندگان [English]

  • Kambiz Mashayekhi 1
  • Ayoub Ghorbani Dehkordi 2
  • Saied Javad Mousavizadeh 3
  • Kamran Rahnama 1
1 Associate Professor, Gorgan University of Agricultural Sciences and Natural Resources, ‎Gorgan, Iran
2 Ph. D. Candidate, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
3 Assistant Professor, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
چکیده [English]

In order to study the effect of nitrogen and phosphorus supplier bacteria on tomato transplants characteristics, a factorial experiment in a completely randomized design with three replications, was conducted in a greenhouse of Gorgan University of Agricultural Sciences and Natural Resources, in March 2016. The first factor was biological fertilizer application at five levels (control, seed treatment of azosperilium, seed treatment of Pseudomonas, Azosperilium soil use, Pseudomonas soil use), and the second factor was irrigation at two levels (four times a day and two times a day). In this experiment, Azospirillium brasilense strain (P) and Pseudomonas fluorescens strain (p-169) were used. The results showed that the use of biofertilizers of Azospirilium brasilense and Pseudomonas fluorescens in soil application compare with control, improved germination percentage, stem length, stem and leave dry weight, root fresh weight, decreased the time to appearance of sixth leaf and increased anthocyanins in the tissue (1.67, 2.9, 19.05, 9.25, 3.38 and 18.42%), respectively. So, Azosperilium brasilense and Pseudomonas fluorescens as soil use can be used in normal irrigation regimes to improve the quality, shorten the nursery period, reduce water stress and improving seedling tolerance to the transmission stress in the main field, in the production of tomato transplants.

کلیدواژه‌ها [English]

  • Anthocyanin
  • Antioxidant Enzymes
  • Azospirillum
  • Pseudomonas
  • transplant‎
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