变温及层积处理对白花龙种子发芽的影响

Effect of Variable Temperature and Stratification Treatment on Seed Germination of Styrax faberi

采用变温箱变温以及沙藏层积处理白花龙种子,研究了白花龙种子萌发的特性。实验结果表明:白花龙种子有一定的休眠特性。在变温处理下,种子的发芽率接近于11%。变温处理后的种子进行沙藏层积后,可有效消除白花龙种皮萌发的抑制物,打破种子的休眠,且发芽率随层积时间的增长而提高,最终发芽率能达到97.14%。

The germination characteristics of Styrax faberi seeds were studied by changing temperature in the temperature changing box and through the way of stratification with sand.The experimental results showed that the seed of Styrax faberi had some dormancy characteristics.Under the condition of variable temperature,the germination rate of seeds is less than 11%.After stratification,the seeds treated with temperature change can effectively eliminate the inhibitions of seed germination and break the seed dormancy,and the germination rate rises with the increase of stratification time,and the final germination rate can reach 97.14%.