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Wide–Narrow Row Planting Pattern Increases Root Lodging Resistance by Adjusting Root Architecture and Root Physiological Activity in Maize ( Zea mays L.) in Northeast China

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  • Shengqun Liu

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

  • Shulian Jian

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
    University of Chinese Academy of Sciences, Beijing 100864, China)

  • Xiangnan Li

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

  • Yang Wang

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

Abstract

Root lodging (RL) in maize can reduce yield and grain quality. A wide–narrow row planting pattern can increase maize yield in the growing regions of northeastern China, but whether it can improve RL resistance is not clear. Therefore, in this study, the root architecture distribution, root physiological activity, and root lodging rate under planting pattern 1 (uniform ridge of 65 cm, east–west ridge direction) and pattern 2 (wide–narrow rows, 40 double narrow rows and 90 wide rows, north–south ridge direction) were studied. The results showed that the RL rate under pattern 2 was significantly lower than that under pattern 1. The number and diameter of nodal roots on the upper node, the root failure moment, and the root bleeding sap intensity at the 3 weeks after VT under pattern 2 were significantly higher than those under pattern 1. Root length density in the 0–40 cm soil layer tended to be inter-row distributed. Therefore, the RL resistance of maize under pattern 2 was increased through an adjustment in the root architecture distribution and root physiological activity in northeastern China.

Suggested Citation

  • Shengqun Liu & Shulian Jian & Xiangnan Li & Yang Wang, 2021. "Wide–Narrow Row Planting Pattern Increases Root Lodging Resistance by Adjusting Root Architecture and Root Physiological Activity in Maize ( Zea mays L.) in Northeast China," Agriculture, MDPI, vol. 11(6), pages 1-13, June.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:6:p:517-:d:567973
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    References listed on IDEAS

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    1. Wang, Hao & Xu, Ranran & Li, Yang & Yang, Liye & Shi, Wei & Liu, Yongjie & Chang, Shenghua & Hou, Fujiang & Jia, Qianmin, 2019. "Enhance root-bleeding sap flow and root lodging resistance of maize under a combination of nitrogen strategies and farming practices," Agricultural Water Management, Elsevier, vol. 224(C), pages 1-1.
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    Cited by:

    1. Shoutian Ma & Fujian Mei & Tongchao Wang & Zhandong Liu & Shouchen Ma, 2021. "Stereoscopic Planting in Ridge and Furrow Increases Grain Yield of Maize ( Zea mays L.) by Reducing the Plant’s Competition for Water and Light Resources," Agriculture, MDPI, vol. 12(1), pages 1-16, December.

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