Effect of Different Reagents on Breaking Dormancy of Wild Rose Seeds
The cold stratification seeds of Rosa albertii Regel,R.spinosissima L.and R.platyacantha Schrenk were treated with three reagents (KMnO4,CuSO 4and NAA) with three concentrations (0.1％,0.2％and 0.3％) for 24 h and then the treated seeds were put in glass petri dishes with a filter paper to count the germination rate on 50th day to provide a reference for introduction and breeding of wild Rosa.Results:Three reagents do not break dormancy of R.albertii Regel seeds almost.Three reagents can break dormancy of R.spinosissima L.and R.platyacantha Schrenk seeds and the germination rate of R.platyacantha Schrenk seeds is higher than R.spinosissima L.The effect of KMnO4 and CuSO4 treatment is better than NAA and the effect of KMnO4,on breaking dormancy of R.spinosissima L.and R.platyacantha Schrenk is the best.The germination rate of R.spinosissima L.seeds treated with 0.2％ KMnO4 is up to 26.7％ and the germination rate of R.platyacantha Schrenk seeds treated with 0.2％ and 0.3％ KMnO4 can reach 33.3 ％.
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万方数据
维普
