[Objective] The effects of low temperature and high temperature on Lycium dasystemum Pojark.seeds were studied to provide data support for factory seedling cultivation.[Method] The seeds were treated at 5℃ for 0-20 days,and the germination rate was measured at 10-40℃.[Result]The germination rate of seeds treated at low temperature ①was 65.0％ in T3 environment,77.8％ higher than that of seeds treated at normal temperature.The seeds under low temperature ③treatment had the fastest start-up speed in T4 environment,which took 4 days,0.8 days faster than normal temperature seeds,and the highest germination index was 5.1,73％ higher than normal temperature seeds.The germination potential of seeds treated at low temperature ④ was up to 24％ in T4 environment,33.3％ higher than that at normal temperature.Low temperature treatment ③,④ seeds can break seed dormancy at low temperature T1. [Conclusion] After low temperature treatment,seed dormancy could be broken and germination rate,start-up rate,germination potential and germination index of Xinjiang Lycium barbarum seeds could be significantly improved.
关键词
新疆黑果枸杞/低温处理/发芽率/有效积温
Key words
Lycium dasystemum Pojark./Low temperature treatment/Germination rate/Effective accumulated temperature
维普
万方数据