不同处理对鄂丝瓜1号种子萌发特性的影响

Effects of Different Treatments on Seed Germination of Luffa cylindrical Roem

[目的]研究不同处理对普通丝瓜种子萌发特性的影响。[方法]以鄂丝瓜1号种子为试材,研究浸种时间、赤霉素处理和干热处理对丝瓜种子发芽率和发芽势的影响。[结果]丝瓜浸种12 h以上,可以提高丝瓜种子的发芽势和发芽率,其中浸种24 h的发芽势和发芽率最高,达到39.30%和85.87%;赤霉素处理能够显著提高丝瓜种子的发芽势和发芽率,其中浓度300 mg/L、浸种8 h处理的发芽势和发芽率最高,达到52.92%和90.67%,赤霉素浸种时间以8 h为宜;丝瓜种子对高温反应较为敏感,处理温度和时间不宜过高和过长,其中处理温度在50℃、时间为1 h的发芽势和发芽率最高,分别达到44.67%和64.75%,干热处理对丝瓜种子的发芽率没有影响。[结论]该研究为丝瓜育苗生产提供了理论依据。

[ Objective ] Effects of different treatments on seed germination of Luffa cylindrical Roem were studied. [ Method ] The effects of dif- ferent seed soaking time, gibberellin treatment and dry heat treatment on the germination potential and germination rate of seed of L. cylindri- cal Roem cuhivar E NO. 1 were studied. [ Result] The results showed that seed soaking 12 hours in water could improve the germination po- tential and germination rate of L. cylindrical Roem seed. The highest germination potential and germination rate with soaking 24 h were recor- ded as 39.30% and 85.87%. Gibberellin treatment could significantly increase the germination and germination rate of L. cylindrical Roem seeds. The optimum concentration and seed soaking time of gibberellin was 300 mg/L and 8h, which could result in the highest germination potential reached 52.92% and germination rate reached 90.67% , and the seed soaking 8 hours should had better germination using gibberel- lin. The L. cylindrical Roem seeds were sensitive to the high-temperature processing. Processing temperature and time should not be too high and too long ,the highest germination potential and germination rate with 50 ℃ for 1 h were recorded as 44.67% and 64.75% ,the dry heat treatment had no effect on germination rate of L. cylindrical Roem seeds. [ Conclusion ] The study provides theory basis for L. cylindrical Roem seeds production.