The effect of vesicular–arbuscular (VA) mycorrhizal fungi on vitamin C content of tomato in the presence of lead (Pb) and different levels of phosphorus (P)

  • سال انتشار: 1394
  • محل انتشار: کنفرانس جهانی رویکردهای نوین در کشاورزی و محیط زیست در راستای توسعه پایدار و تولید ایمن
  • کد COI اختصاصی: INTCONFERENCE01_012
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 479
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نویسندگان

Parisa Alizadeh Oskuie

Department of Soil Science,and Member of young research club, Marand Branch, Islamic Azad University, Marand, Iran.

Shahram Baghban Cirus

Department of Horticulture, Marand Branch Islamic Azad University, Marand, Iran

چکیده

In a greenhouse experiment, tomato (lycopersicum esculentum L. cv. Soltan) seedlings germinated were inoculated with Glomus versiform (G1) and Glomus etunicatum (G2) in a pasteurized low phosphorus (P) and lead (Pb); the uninoculated one was the control (G0). Three Pb levels (5, 10, 50 mg/kg; Pb1, Pb2 and Pb3, respectively) as PbSO4, and three P levels (5, 20 and 40 mg/kg; P1, P2 and P3 respectively) as KH2PO4 were applied to the soil during transplanting. Based on the results obtained, vitamin C content of fruits was affected by Pb and P levels in both mycorrhizal and non-mycorrhizal plants. It was observed that vitamin C content of fruits was enhanced significantly with increased P level, but decreased significantly in Pb level; and it was significantly higher in mycorrhizal plants than in non-mycorrhizal plants at the same level of P and lower at the same level of Pb. Percentage of root colonization was negatively affected by Pb level of soil and positively affected by P levels. Percentage of root colonization was significantly higher in mycorrhizal plants than in non- mycorrhizal plants at the same level of P and lower at the same level of Pb. However, there was no significant difference between G. versiform and G. etunicatum.

کلیدواژه ها

Lead (Pb), phosphorus (P), tomato, vesicular–arbuscular (VA) mycorrhiza, vitamin C

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