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Information Journal Paper

Title

INTERACTION OF SODIUM AND POTASSIUM IN THREE CITRUS ROOTSTOCKS UNDER SALINITY STRESS

Pages

  135-144

Abstract

CITRUS is one of the important horticultural crops which are sensitive to SALINITY. To evaluate the effects of salt stress on accumulation and distribution of Na+ on K+ in three different CITRUS ROOTSTOCKs, a study was conducted in a completely randomized design with four replications. In this investigation, three CITRUS seedling ROOTSTOCKs including sour orange (CITRUS aurantium L.), Taiwanica (CITRUS taiwanica L.) and lemon (CITRUS limon L.) were treated with four levels of NaCl (0, 20, 40, 60 mM l-1) for three months under greenhouse conditions.Concentration of SODIUM (Na+) and POTASSIUM (K+) were measured in root, leaf and shoot by flame photometric method. The results indicated that with increasing in NaCl levels, concentration of Na+ increased in different parts of all ROOTSTOCKs whereas the rate of K+ uptake decreased. Concentration of Na+ and K+ in different parts of all ROOTSTOCKs was different, so that, in sour orange roots, concentration of Na+ was more than Taiwanica and lemon but in sour orange shoots, amount of Na+ was lower than the two other ROOTSTOCKs. In contrast, in sour orange root, uptake and concentration of K+ was lower but in shoots was higher than the two other ROOTSTOCKs. Imbalancing of ions and reduction of absorbtion of some ions due to SALINITY was obvious in this experiment. Excess uptake of Na+ has caused reduction of K+ uptake. K+ is one of the essential elements in plant nutrition and is involved in stomatal opening and enzymatic activities. Deficiency of K+ reduced photosynthesis and transferring of photosynthate to roots and consequently reduced the growth.

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    APA: Copy

    AMIN, HOSSEIN, & TAFAZOLI, E.A.. (2003). INTERACTION OF SODIUM AND POTASSIUM IN THREE CITRUS ROOTSTOCKS UNDER SALINITY STRESS. IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, 4(3-4), 135-144. SID. https://sid.ir/paper/80931/en

    Vancouver: Copy

    AMIN HOSSEIN, TAFAZOLI E.A.. INTERACTION OF SODIUM AND POTASSIUM IN THREE CITRUS ROOTSTOCKS UNDER SALINITY STRESS. IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY[Internet]. 2003;4(3-4):135-144. Available from: https://sid.ir/paper/80931/en

    IEEE: Copy

    HOSSEIN AMIN, and E.A. TAFAZOLI, “INTERACTION OF SODIUM AND POTASSIUM IN THREE CITRUS ROOTSTOCKS UNDER SALINITY STRESS,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCE AND TECHNOLOGY, vol. 4, no. 3-4, pp. 135–144, 2003, [Online]. Available: https://sid.ir/paper/80931/en

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