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Effects of irrigation schemes on the components and physicochemical properties of starch in waxy wheat lines

Author

Listed:
  • Zhongmin Dai

    (Dezhou University, Dezhou, Shandong, P.R. China)

  • Dongcheng Liu

    (Hebei Agricultural University, Baoding, Hebei, P.R. China)

  • Shengnan Qin

    (Dezhou University, Dezhou, Shandong, P.R. China)

  • Rugang Wu

    (Research Institute of Agricultural Sciences, Dezhou, Shandong, P.R. China)

  • Yan Li

    (Dezhou University, Dezhou, Shandong, P.R. China)

  • Juan Liu

    (Dezhou University, Dezhou, Shandong, P.R. China)

  • Yuangang Zhu

    (Dezhou University, Dezhou, Shandong, P.R. China)

  • Guangfeng Chen

    (Dezhou University, Dezhou, Shandong, P.R. China)

Abstract

The waxy wheat shows special starch quality due to low amylose content. However, less information is available concerning the physicochemical properties of starch in different waxy wheat under different irrigation. In this study, two wheat near-isogenic lines (NILs) and a normal wheat cultivar were used to investigate the contents, size distribution and crystallinity of starch by biochemical methods, laser-diffraction and X-ray diffraction analysis. The amylose content in wheat grains was the lowest in waxy wheat lines, SJZ8-N, followed by the partly waxy wheat lines, SJZ8-P, and the highest in the normal wheat, SJZ8, with significant differences among wheat lines. Waxy wheat starch had more B-type granules and a higher degree of crystallinity than normal wheat starch, with the order as SJZ8-N > SJZ8-P > SJZ8. When compared with the conventional and water-saving irrigation, the rainfed treatment showed the lowest starch content, amylose content (except SJZ8-N), amylopectin content and relative crystallinity in the three wheat lines indicating that water deficiency was not benefited starch accumulation and crystal formation in wheat grains. It was concluded that (1) wheat lines not only differed in amylose content but also in size distribution and crystallinity of starch; (2) irrigation markedly influenced the physicochemical characteristics of wheat starch; therefore, the irrigation schemes could be adjusted to achieve high-quality wheat production.

Suggested Citation

  • Zhongmin Dai & Dongcheng Liu & Shengnan Qin & Rugang Wu & Yan Li & Juan Liu & Yuangang Zhu & Guangfeng Chen, 2021. "Effects of irrigation schemes on the components and physicochemical properties of starch in waxy wheat lines," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(9), pages 524-532.
    • Handle: RePEc:caa:jnlpse:v:67:y:2021:i:9:id:231-2021-pse
    DOI: 10.17221/231/2021-PSE
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    References listed on IDEAS

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    1. Jingyang Tong & Shujun Wang & Zhonghu He & Yan Zhang, 2021. "Effects of Reduced Nitrogen Fertilization and Irrigation on Structure and Physicochemical Properties of Starch in Two Bread Wheat Cultivars," Agriculture, MDPI, vol. 11(1), pages 1-12, January.
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