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The Effect of Drip Irrigation Quota on Biochemical Activities and Yield-Related Traits in Different Drought-Tolerant Maize Varieties

Author

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  • Chen Xu

    (College of Agriculture, Jilin Agricultural University, Changchun 130118, China
    Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun 130033, China)

  • Fei Li

    (College of Agriculture, Jilin Agricultural University, Changchun 130118, China)

  • Yan Zhuang

    (College of Agriculture, Jilin Agricultural University, Changchun 130118, China)

  • Qian Li

    (Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun 130033, China)

  • Zhian Zhang

    (College of Agriculture, Jilin Agricultural University, Changchun 130118, China)

  • Lihua Zhang

    (Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun 130033, China)

  • Hongxiang Zhao

    (Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun 130033, China)

  • Shaofeng Bian

    (Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun 130033, China)

  • Hongjun Wang

    (Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun 130033, China)

  • Renjie Zhao

    (College of Agriculture, Jilin Agricultural University, Changchun 130118, China)

  • Zexin Qi

    (College of Agriculture, Jilin Agricultural University, Changchun 130118, China)

Abstract

Drip irrigation has a close relationship with the growth and development of maize grains and yield formation in semiarid areas. To explore the response mechanism of grain yield formation to drip irrigation quotas, a 2-year pond planting experiment was conducted under controlled conditions, by using two maize varieties with differences in drought resistance as experimental materials. Six treatments were set up, including CK1 (drought-resistant variety, 500 mm), T1 (drought-resistant variety, 350 mm), T2 (drought-resistant variety, 200 mm), CK2 (drought-sensitive variety, 500 mm), T3 (drought-sensitive variety, 350 mm), and T4 (drought-sensitive variety, 200 mm). The changes in maize grain filling characteristics, related hormones, enzyme activity related to starch synthesis, sugars and amino acids contents, and yield were analysed. The results showed that 100-grain weight at different filling times, filling rate, average filling rate, auxin, cytokinin, acid sucrose invertase, sucrose synthase, starch synthase, and adenosine diphosphate glucose pyro phosphorylase activities in maize grains decreased and the abscisic acid content and content of various amino acids and sugars in grains increased with the decrease in drip irrigation quota. The percentage of changes in drought-sensitive maize varieties was relatively high. The maize yield decreased with the decrease in drip irrigation quota. In summary, there was no significant difference in grain filling characteristics, hormone content, starch synthesis enzyme activity, and yield between maize treated with T1 (drought-resistant variety, 350 mm) and the control treatment. This effectively maintained grain growth and yield formation, achieving the goal of water saving and stable yields.

Suggested Citation

  • Chen Xu & Fei Li & Yan Zhuang & Qian Li & Zhian Zhang & Lihua Zhang & Hongxiang Zhao & Shaofeng Bian & Hongjun Wang & Renjie Zhao & Zexin Qi, 2023. "The Effect of Drip Irrigation Quota on Biochemical Activities and Yield-Related Traits in Different Drought-Tolerant Maize Varieties," Agriculture, MDPI, vol. 13(9), pages 1-17, August.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:9:p:1682-:d:1225379
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    References listed on IDEAS

    as
    1. Li, Pei & Huang, Qiang & Huang, Shengzhi & Leng, Guoyong & Peng, Jian & Wang, Hao & Zheng, Xudong & Li, Yifei & Fang, Wei, 2022. "Various maize yield losses and their dynamics triggered by drought thresholds based on Copula-Bayesian conditional probabilities," Agricultural Water Management, Elsevier, vol. 261(C).
    2. Chen, Rui & Wang, Zhenhua & Dhital, Yam Prasad & Zhang, Xinyu, 2022. "A comparative evaluation of soil preferential flow of mulched drip irrigation cotton field in Xinjiang based on dyed image variability versus fractal characteristic parameter," Agricultural Water Management, Elsevier, vol. 269(C).
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