EFFECT OF NITROGEN FORM AND DIFFERENT OXYGEN LEVELS ON ECO-PHYSIOLOGICAL AND CHEMICAL CHARACTERISTIC OF LETTUCE IN HYDROPONIC SYSTEM

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BAGHERI M.H.; ROOSTA H.R.; MIRDEHGHAN S.H.; ROOZBAN M.R.

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Journal: Journal of Horticultural Science Year:2012 | Volume:26 | Issue:1 Page(s): 96-103

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Title

EFFECT OF NITROGEN FORM AND DIFFERENT OXYGEN LEVELS ON ECO-PHYSIOLOGICAL AND CHEMICAL CHARACTERISTIC OF LETTUCE IN HYDROPONIC SYSTEM

Author(s)

BAGHERI M.H. | ROOSTA H.R. | MIRDEHGHAN S.H. | ROOZBAN M.R. | Issue Writer Certificate

Keywords

AMMONIUMQ2

NITRATEQ2

CHLOROPHYLLQ1

IRONQ2

PROLINEQ2

Abstract

The effect of nitrogen form and oxygen levels on the some eco-physiological and chemical characteristics of lettuce was investigated. The results showed that the effect of treatments on minimal fluorescence (Fo) was not significant, although, AMMONIUM caused reduction in maximal fluorescence (Fm), variable fluorescence (Fv) and Fv/Fm ratio. AMMONIUM also increased leaf PROLINE concentration, but the effects of oxygen levels and its interaction with nitrogen form was not significant. AMMONIUM also increased green color (SPAD value) of leaves compared to NITRATE, and SPAD value was higher in low levels of oxygen. CHLOROPHYLL a, b and carotenoids increased in AMMONIUM-fed plants. Low levels of oxygen decreased CHLOROPHYLL b content. The results showed that Fe concentration of leaves was higher in the NITRATE-grown plants compared to AMMONIUM grown plants. Decrease of Fv/Fm ratio and higher PROLINE could be the sign of AMMONIUM-induced toxicity. Decrease of Fe concentration in the leaves of AMMONIUM-fed plants could have a role in growth reduction.

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APA: Copy

BAGHERI, M.H., ROOSTA, H.R., MIRDEHGHAN, S.H., & ROOZBAN, M.R.. (2012). EFFECT OF NITROGEN FORM AND DIFFERENT OXYGEN LEVELS ON ECO-PHYSIOLOGICAL AND CHEMICAL CHARACTERISTIC OF LETTUCE IN HYDROPONIC SYSTEM. JOURNAL OF HORTICULTURE SCIENCE (AGRICULTURAL SCIENCES AND TECHNOLOGY), 26(1), 96-103. SID. https://sid.ir/paper/142277/en

Vancouver: Copy

BAGHERI M.H., ROOSTA H.R., MIRDEHGHAN S.H., ROOZBAN M.R.. EFFECT OF NITROGEN FORM AND DIFFERENT OXYGEN LEVELS ON ECO-PHYSIOLOGICAL AND CHEMICAL CHARACTERISTIC OF LETTUCE IN HYDROPONIC SYSTEM. JOURNAL OF HORTICULTURE SCIENCE (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2012;26(1):96-103. Available from: https://sid.ir/paper/142277/en

IEEE: Copy

M.H. BAGHERI, H.R. ROOSTA, S.H. MIRDEHGHAN, and M.R. ROOZBAN, “EFFECT OF NITROGEN FORM AND DIFFERENT OXYGEN LEVELS ON ECO-PHYSIOLOGICAL AND CHEMICAL CHARACTERISTIC OF LETTUCE IN HYDROPONIC SYSTEM,” JOURNAL OF HORTICULTURE SCIENCE (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 26, no. 1, pp. 96–103, 2012, [Online]. Available: https://sid.ir/paper/142277/en

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