大火草种子发芽特性研究

为丰富北方园林植物品种,对野生花卉大火草(Anemone tomentosa)的种子发芽特性进行研究。结果表明,大火草种子没有种皮障碍,易发芽,最适宜在4月中上旬种植;疏松的基质对种子的发芽有利;大火草在黑暗条件下种子也可以发芽,但是发芽时间要延长,发芽势和发芽指数明显降低;20℃是发芽的最适温度。大火草种子产量大,宜以种子播种繁殖,但种子小,播种土壤易疏松且不宜覆土。为保证其良好的发芽率,最好采收后尽早播种。种子常温下保存时应经过自然充分干燥后装入纸袋中,否则会影响其发芽。

Study on Seed Germination Characteristics of Anemone tomentosa

In order to enrich the north garden plant varieties,seed germination characteristics of wild flower,Anemone tomentosa were studied.The results indicated that the Anemone tomentosa’s seeds had no seed coat obstacles,were easy to germinate and suitable to be planted in the first ten days of April.Looser cultivation materials were better for the seed germination.The seeds could germinate even under dark condition,but with a longer period,obvious declined germination viability and index.The most suitable germination temperature was 20℃.The Anemone tomentosa had large seed production and was easy to germination.However,since the seeds were small,looser soil was necessary and no covering soil was needed when the seeds are sown.It is suggested to sow the seeds as soon as collected in order to guarantee higher germination rate.The seeds should be preserved under normal room temperature after sufficiently dried and stored in paper bags,otherwise seed germination would be unfavorablely influenced.