Journal of Northern Agriculture ›› 2020, Vol. 48 ›› Issue (5): 119-124.doi: 10.12190/j.issn.2096-1197.2020.05.21

• Horticulture·Prataculture • Previous Articles     Next Articles

Establishment of tissue culture and regeneration system for Sorghum-Sudangrass

SHI Yue1,2, FANG Yongyu3, YU Zhuo2, YANG Dongsheng2, CHAI Wenjuan1, LIU Shuancheng1   

  1. 1. College of Life Science,Jining Normal University,Jining 012000,China;
    2. College of Agronomy,Inner Mongolia Agricultural University,Hohhot 010019,China;
    3. Institute of Grassland,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
  • Received:2020-08-02 Online:2020-10-20 Published:2020-12-17

Abstract: 【Objective】To establish a tissue culture and regeneration system of Sorghum-Sudangrass for the research of Sorghum-Sudangrass transgenic breeding.【Methods】The experiment used MS as the basic medium,and the mature seeds of Sorghum-Sudangrass were used as explants to study the effect of different exogenous hormone ratios(2,4-D,NAA,6-BA,IBA)on callus,induction and differentiation of adventitious buds and influence of seedling rooting.【Results】The suitable callus induction medium was MS+2,4-D(1.5 mg/L),and the induction rate reached 65.63%;adventitious bud inductions MS medium with NAA(0.5 mg/L)and 6-BA(1.5 mg/L)was optimal,with a adventitious bud induction rate of 80.21%;the optimal rooting medium was MS medium containing 1.0 mg/L IBA,with a rooting rate of 74.30%;for transplanting tissue culture seedlings,the nutrient soil of flower soil∶perlite∶vermiculite = 3∶1∶1 was selected as the transplanting substrated.【Conclusion】 The regeneration system of mature seeds of Sorghum-Sudangrass was induction medium MS+2,4-D(1.5 mg/L),and the bud differentiation medium was MS+NAA(0.5 mg/L)+6-BA(1.5 mg/L),and rooting medium was MS+IBA(1.0 mg/L).

Key words: Sorghum-Sudangrass, Mature seeds, Tissue culture, Callus

CLC Number: 

  • S544.9