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Genotype difference in the physiological characteristics of phosphorus acquisition by wheat seedlings in alkaline soils

Author

Listed:
  • Feiyan Yu

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Wei Li

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Xiaokai Gao

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Peng Li

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Yihan Fu

    (Agricultural College, Henan Agricultural University, Zhengzhou, Henan, P.R. China)

  • Jinyong Yang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Yajuan Li

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Huiqing Chang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Wenli Zhou

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Xugang Wang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Lianhe Zhang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China
    Henan Jinxiwang Agricultural Science and Technology Company Limited, Luoyang, Henan, P.R. China)

Abstract

Phosphorus (P) in soils occurs predominately as insoluble inorganic P and organic P. However, key factors controlling P acquisition by wheat (Triticum aestivum L.) seedlings are unclear. In this study, the difference in the physiological characteristics of P acquisition in alkaline soils was investigated in wheat seedlings of two cultivars Aikang 58 and Zhoumai 22. The results indicated that the shoot P concentration of Aikang 58 was significantly higher than that of Zhoumai 22 when supplied with 0 and 70 kg/ha of pure P under field conditions. When cultured in sterile nutrition solutions with equimolar amounts of P corresponding to KH2PO4, Ca3(PO4)2, and Ca(H2PO4)2 for 6 days, the P concentration in the shoots and roots of the seedlings of Aikang 58 was significantly higher than that of Zhoumai 22. However, the P concentration of seedlings of Aikang 58 did not exhibit a significant difference than that of Zhoumai 22 when cultured in phytic acid solution. Further studies suggested that the proton secretion rate was higher, and the root phosphatase activity was significantly lower in Aikang 58 compared with those in Zhoumai 22. After 48 h of successive P starvation, the inorganic phosphate (Pi) uptake rate of Aikang 58 was significantly higher compared with that of Zhoumai 22. However, no significant differences existed in the root morphology between the two cultivars. Hence, the higher P acquisition in the wheat seedlings of Aikang 58 was attributed to a higher rate of proton secretion and a stronger capacity for Pi uptake.

Suggested Citation

  • Feiyan Yu & Wei Li & Xiaokai Gao & Peng Li & Yihan Fu & Jinyong Yang & Yajuan Li & Huiqing Chang & Wenli Zhou & Xugang Wang & Lianhe Zhang, 2020. "Genotype difference in the physiological characteristics of phosphorus acquisition by wheat seedlings in alkaline soils," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(10), pages 506-512.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:10:id:348-2020-pse
    DOI: 10.17221/348/2020-PSE
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    References listed on IDEAS

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    1. Jinyong Yang & Feiyan Yu & Zihao Fu & Yihan Fu & Sinan Liu & Menglin Chen & Yajuan Li & Qizhuang Sun & Huiqing Chang & Wenli Zhou & Xugang Wang & Lianhe Zhang, 2019. "Pathway and driving forces of selenite absorption in wheat leaf blades," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(12), pages 609-614.
    2. Li, Chunxia & Li, Yuyi & Li, Youjun & Fu, Guozhan, 2018. "Cultivation techniques and nutrient management strategies to improve productivity of rain-fed maize in semi-arid regions," Agricultural Water Management, Elsevier, vol. 210(C), pages 149-157.
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