摘要
A study was conducted to evaluate the effect of GA3, moist-chilling and temperature on seed germination ofAbies pindrow and Picea smithiana from five different provenances. Seeds were soaked in GA3 （10 mg·L^-1） for 24 h, then chilled at 3-5℃ for 15 days. Four temperature regimes viz. 10℃, 15℃, 20℃ and 25℃ were used for stimulating seed germination. Results showed that soaking and chilling significantly increased germination percentage. The germination percentage was highest at 10℃. Overall results showed that soaking seeds in GA3 （10 mg·L^-1） for 24 h, moist chilling for 15 days, and germinating at 10℃ produced an effective germination in both the species studied. The statistical analysis of the data proclaimed significant effect of treatment, temperature, provenance and treatment with temperature interactions on seed germination.
研究赤霉素(GA3),冷湿和温度对五个种源的印度冷杉(Abies pindrow)和长叶云杉(Picea smithiana)种子萌发的影响。种子被浸泡在 GA3 (10 mg-L-1)中 24 小时,然后在3-5°C温度的条件下冷藏 15 天。设计 4 个温度(10°C, 15°C, 20°C和 25°C)条件来促进种子的萌发。结果表明,浸泡和冷湿处理明显增加种子的萌发率。在 10 °C时种子的萌发率最高。总体结果表明,种子被浸泡在 GA3 (10 mg-L-1)中 24 小时,冷湿藏 15 天,可以有效地促进印度冷杉和长叶云杉的种子萌发。统计数据表明,浸泡处理、温度和种源以及与温度的相互作用都对种子的萌发有明显的影响。
