Effects of four treatments on seed germination of Rosa chinensis
[Objective]The present study was conducted to analyze effects of different treatments on germination of Rosa chinensis seeds in order to provide a theoretical and technical support for raising seed germination rate and breeding efficiency of R.chinensis.[Method]Using R.chinensis seeds as material,the effects of cold stratification,different hormone concentrations,different substrates and aseptic seeding on seed germination were studied.[Result]Results showed that:after cold stratification treatnent,seed germination rate reached 42.22％ and germination energy was 24.44％;100.0 mg/L GA3 and 100.0 mg/L NAA could significantly raise germination rate and germination energy of R.chinensis(P＜0.05).After 100.0 mg/L GA3 treatment,seed germination rate was 55.56％ and germination energy 42.22％;in 100.0 mg/L NAA treatment,seed germination rate reached 48.89％ and germination energy 30.00％.In terms of R.chinensis planted in river sand,the germination rate was 42.22％ and germination energy 24.44％,which were better than those in peat-perlite matrix (volume ratio 2∶1) and garden soil.Adding GA3 in MS media was beneficial for seed germination.When the concentration of GA3 was 0.5 mg/L,seed germination rate reached 55.56％ and germination energy 34.44％.[Conclusion]Cold stratification,100.0 mg/L GA3 and 100.0 mg/L NAA soaking treatments cau raise seed germination rate of R.chinensis.Appropriate seeding matrix and culture medium can promote seed germination of R.chinensis.
Rosa chinensisseed germinationgerm-free germinationgermination rate
国家科技期刊平台
NSTL
万方数据
维普
