An orthogonal test of the effect of NO3−, PO43−, K+, and Ca2+ on the growth and ion absorption of Elaeagnus angustifolia L. seedlings under salt stress

• Autorzy: Li L. , Zhu T. , Liu J. , Zhao C. , Li L. , Chen M.
• Języki publikacji: EN

Abstrakty

EN

Excess salts in soil severely inhibit plant growth and yield. Various nutrients can relieve the inhibitory effect of salt on plants. Elaeagnus angustifolia is a tree species that is utilized in landscaping and ecological restoration in China and shows tolerance to saline soils. In this experiment, we first determined the optimal concentration of single-nutrient inputs for promoting growth of E. angustifolia seedlings and alleviating salt stress. The optimal nitrogen (NO₃⁻), phosphorus (PO₄³ ⁻), potassium (K⁺ ), and calcium (Ca²⁺ ) concentrations under salt stress were 2, 0.6, 2, and 2 mM, respectively. Based on this result, we carried out an optimum nutrient ratio experiment by a four-factor and three-level orthogonal experiment. The results showed that under normal growth conditions, the optimal nutrient combinations for NO₃⁻, PO₄³ ⁻, K⁺ , and Ca²⁺ were 2, 0.6, 5, and 1 mM; 5, 0.2, 5, and 2 mM; and 5, 0.6, 1, and 5 mM, respectively, which increased plant height, biomass, and the chlorophyll content of E. angustifolia seedlings. Under salt stress, the optimal nutrient combinations were 5, 0.2, 5, and 2 mM; and 5, 0.6, 1, and 5 mM, respectively. This study provides a theoretical basis for optimal fertilization of E. angustifolia seedlings in saline-alkali soils.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2019
• Tom: 41
• Numer: 11
• Opis fizyczny: Article 179 [11p.], fig.,ref.

Twórcy

autor

Li L.

• Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, No. 88, East Wenhua Road, Jinan 250014, Shandong, China

autor

Zhu T.

• Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, No. 88, East Wenhua Road, Jinan 250014, Shandong, China

autor

Liu J.

• Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, No. 88, East Wenhua Road, Jinan 250014, Shandong, China

autor

Zhao C.

• Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, No. 88, East Wenhua Road, Jinan 250014, Shandong, China

autor

Li L.

• Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, No. 88, East Wenhua Road, Jinan 250014, Shandong, China

autor

Chen M.

• Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, No. 88, East Wenhua Road, Jinan 250014, Shandong, China

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Identyfikatory

DOI

10.1007/s11738-019-2969-8