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Mycorrhizal roles in plant growth, gas exchange, root morphology, and nutrient uptake of walnuts

Author

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  • Guang-Ming Huang

    (Collegeof Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, P.R. China)

  • Ying-Ning Zou

    (Collegeof Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, P.R. China)

  • Qiang-Sheng Wu

    (Collegeof Horticulture and Gardening, Yangtze University, Jingzhou, Hubei, P.R. China
    Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic)

  • Yong-Jie Xu

    (Hubei Academy of Forestry, Wuhan, P.R. China)

  • Kamil Kuča

    (Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové, Czech Republic)

Abstract

Walnut, an important oil fruit tree, is dependent on arbuscular mycorrhizas, while mycorrhizal roles and efficient mycorrhizal fungus in walnuts are unknown. This study was conducted to evaluate the effect of five arbuscular mycorrhizal fungi (AMF) species, including Acaulospora scrobiculata, Diversispora spurca, Glomus etunicatum, G. mosseae, and G. versiforme on plant growth, leaf gas exchange, root morphology, and root nutrient contents of walnut (Juglans regia L. Liaohe 1) seedlings. Three months of AMF inoculations later, root mycorrhizal colonisation achieved 47.0% to 76.4%. AMF treatments increased plant growth performance, dependent on AMF species. AMF-inoculated plants with D. spurca, G. etunicatum, and G. mosseae showed higher root length, projected area, surface area, and volume than non-AMF plants. Except for G. versiforme, the other four AMF treatments almost significantly increased leaf photosynthesis rate, transpiration rate, and stomatal conductivity, while reduced intercellular CO2 concentrations and leaf temperature. AMF affected root nutrient contents, dependent on AMF and mineral nutrient species. These results, thereby, concluded that AMF had a positive role in walnuts, dependent on AMF species, and D. spurca was the best mycorrhizal fungus for walnut. Such results provide the potential possibility of a developing consortium of AMF in walnut cultivation management.

Suggested Citation

  • Guang-Ming Huang & Ying-Ning Zou & Qiang-Sheng Wu & Yong-Jie Xu & Kamil Kuča, 2020. "Mycorrhizal roles in plant growth, gas exchange, root morphology, and nutrient uptake of walnuts," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(6), pages 295-302.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:6:id:240-2020-pse
    DOI: 10.17221/240/2020-PSE
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    References listed on IDEAS

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    1. Ya-Dong SHAO & De-Jian ZHANG & Xian-Chun HU & Qiang-Sheng WU & Chang-Jun JIANG & Ting-Jun XIA & Xiu-Bing GAO & Kamil KUČA, 2018. "Mycorrhiza-induced changes in root growth and nutrient absorption of tea plants," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(6), pages 283-289.
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    Cited by:

    1. Yue Wen & Li-Jun Zhou & Yong-Jie Xu & Abeer Hashem & Elsayed Fathi Abd_Allah & Qiang-Sheng Wu, 2024. "Growth Performance and Osmolyte Regulation of Drought-Stressed Walnut Plants Are Improved by Mycorrhiza," Agriculture, MDPI, vol. 14(3), pages 1-11, February.

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