CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2023, Vol. 45 ›› Issue (1): 191-197.doi: 10.19802/j.issn.1007-9084.2022022

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Germination characteristics of tiger nut (Cyperus esculentus L.)

Yan YE1(), Jun ZHANG1,2, Jian ZHANG1, Song-nan YANG1, Dan YAO3, Hai-lin QIAN1, Yun-fei GAO1, Liang-yu CHEN1, Xue-ying LI1()   

  1. 1.College of Agronomy, Jilin Agricultural University, Changchun 130118, China
    2.National Crop Variety Approval and Characteristic Identification Station, Jilin Agricultural University, Changchun 130118, China
    3.College of Life Science, Jilin Agricultural University, Changchun 130118, China
  • Received:2022-01-26 Online:2023-02-25 Published:2023-03-03
  • Contact: Xue-ying LI E-mail:ye_yanyanyan@163.com;xueyingl@jlau.edu.cn


To better understand how to improve the germination of tiger nut tubers during planting, disinfection method and optimal germination conditions of tiger nut tubers were optimaized by screening soaking conditions, disinfection methods and combinations of different concentrations of plant growth regulators using 3 tiger nut varieties A2, Z1 (Zhongyousha 1) and ND (Neimenggu Dali). Results showed that the best disinfection effect was achieved at 75% alcohol for 3 min and chlorine for 16 h, and their germination rates all reached the highest at 35°C for 3 days, as 58.33%, 51.67% and 43.33% respectively. The highest germination rate was obtained under MS+1.0 mg/L 6-BA+0.5 mg/L NAA for both A2 (70.00%) and Z1 (63.33%). While for ND, 55.00% was the highest germination rate under MS+0.5 mg/L 6-BA+0.2 mg/L NAA. Although 6-BA had significant effect on tuber germination, but increased concentration might inhibit the germination.

Key words: tiger nut (Cyperus esculentus L.), germination, sterilization, plant growth regulator

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