HUBEI AGRICULTURAL SCIENCES ›› 2021, Vol. 60 ›› Issue (21): 76-80.doi: 10.14088/j.cnki.issn0439-8114.2021.21.018

• Horticulture & Local Products • Previous Articles     Next Articles

Study on the method of seed dormancy breaking in non-heading Chinese cabbage

GENG Qi-hua1,2, SONG Li-ping1, LIN Chu-fa1, ZHANG Yu-yang2, WANG Ai-hua1   

  1. 1. Wuhan Academy of Agricultural Sciences,Wuhan 430065,China;
    2. Huazhong Agricultural University,Wuhan 430070,China
  • Received:2021-01-04 Online:2021-11-10 Published:2021-11-24

Abstract: Two kinds of non-heading Chinese cabbage seeds, M62 and Hanyou, were taken as research objects to explore the effects of different physical, chemical and hormone treatments on breaking the dormancy of non-heading Chinese cabbage seeds. The results showed that impregnated with 0.8% and 1.6% KNO3 could increase the germination rate of seeds to over 94%, and the seedlings grew vigorously. When GA concentration was lower than 1 000 mg/L, the dormancy was almost completely broken by soaking the seed for 24 h, and the seed germination rate was up to 99%. In the initiation treatment, it was found that 400 mg/L GA and 1.0% KNO3 could completely break dormancy and the germination rate reached 100%. The seed soaking with concentrated pure sulfuric acid can effectively break the seed coat restriction without harming the embryo, and make the germination rate of M62 seed reach 100% and Hanyou seed reach over 95%.

Key words: non-heading Chinese cabbage, seed dormancy, germination rate

CLC Number: