Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (3): 68-76. doi: 10.7668/hbnxb.20192822

Special Issue: Multigrain crops Hot Article

• Tillage & Cultivation· Physiology & Biochemistry • Previous Articles     Next Articles

Effects of the Different Rotation Patterns on Physiological and Biochemical Indicators and Yield of Millet's

XU Lixia1, DONG Xue1, ZHANG Aiying2, GUO Erhu2, SUN Liang1   

  1. 1. Department of Food Engineering,Shanxi Pharmaceutical Vocational College,Taiyuan 030031,China
    2. Millet Research Institute,Shanxi Agricultural University,Changzhi 046011,China
  • Received:2021-12-28 Published:2022-06-30

Abstract:

In order to alleviate the continuous cropping obstacle of millet,provide a reference for optimizing millet planting mode,millet continuous cropping(Si)was named as control(CK),millet-corn(Si-Zm),millet-potato-corn(Si-St-Zm),millet-corn-soybean(Si-Zm-Gm)and millet-soybean-potato(Si-Gm-St)were used to analyze the effects of different rotation patterns on the physiological indicators,photosynthetic characteristics,agronomic characters,yield and downy mildew incidence rate during the critical millet growth periods.The results showed that compared with CK,in the Si-St-Zm,Si-Zm-Gm and Si-Gm-St rotation patterns,the activeness of superoxide dismutase,peroxidase and polyphenol oxidase in millet flag leaves were significantly increased,with the largest increases of 45.55%,41.55% and 109.09%,respectively.In the Si-Zm-Gm and Si-Gm-St rotation patterns,millet plant height,stem thickness,root length and root branch number were significantly increased,with the largest increases of 30.48%,30.50%,31.76% and 13.79%, respectively.In addition,compared with CK,under the Si-Gm-St rotation system,the H2O2 and MDA content in the millet flag leaves were significantly decreased,with the maximum reductions of 18.78% and 47.29%, respectively;and the stomatal conductance,net photosynthetic rate,transpiration rate and relative chlorophyll content were significantly improved by 31.94%-101.43%,35.74%-234.00%,16.44%-46.97% and 24.15%-66.16%,respectively;with millet ear length,1000-grain weight and yield increased by 14.90%,17.09% and 10.58%,respectively;and millet downy mildew incidence rate significantly reduced by 12.33%.In short,compared with CK,the Si-Gm-St rotation system significantly increased the activeness of SOD,POD and PPO,and improved photosynthetic efficiency in millet flag leaves,meanwhile,the millet yield and disease resistance enhanced.Therefore,compared with Si-Zm,Si-St-Zm and Si-Zm-Gm rotation patterns,Si-Gm-St rotation system has the best effect on alleviating continuous cropping obstacles,which can provide a reference for optimizing millet planting system.

Key words: Millet, Rotation patterns, Physiological indicators, Agronomic characteristics, Yield, Downy mildew, Incidence rate

Cite this article

XU Lixia, DONG Xue, ZHANG Aiying, GUO Erhu, SUN Liang. Effects of the Different Rotation Patterns on Physiological and Biochemical Indicators and Yield of Millet's[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(3): 68-76. doi: 10.7668/hbnxb.20192822.

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