扁叶刺芹种子萌发及在迁地条件下开花结实特性

Seed Germination and Flowering and Fruiting Characteristics of Erygium planum L.Under Ex-situ Conditions

扁叶刺芹(Erygium planum L.)是一种野生观赏植物,在我国仅分布在新疆。为促进野生扁叶刺芹的引种栽培,以扁叶刺芹种子及迁地条件下的实生苗为试验材料,通过田间及实验室试验的方法对其种子萌发与开花结特性实进行研究。结果表明,扁叶刺芹的果实为双悬果,果皮厚有棘刺,其种子没有休眠,去果皮能显著提高扁叶刺芹的发芽势,清水浸种24 h能显著提高发芽率和发芽势。在乌鲁木齐市露地栽培的扁叶刺芹2022年5月22日开始抽苔,始花期为5月27日,6月15日进入盛花期,7月9日进入末花期,6月29日已经开始结实,7月10日为果初熟期,7月20日为果全熟期。在引种地,可以正常完成生活史,安全越冬。可以通过人工去果皮,清水浸种24 h来提高其发芽能力。

Erygium planum L.is a wild ornamental plant only distributed in Xinjiang,China.In order to promote the introduction and cultivation of E.planum,E.planum seeds and seedlings under ex-situ conditions were used as experimental materials,and their seed germination characteristics,flowering and fruiting were studied through field and laboratory tests.The results showed that the E.planum fruit was a double hanging fruit with thick peel and thorns,and its seeds were not dormant.Removing the peel significantly improved the germination potential of the E.planum,and soaking in water for 24 hours significantly improved the germination rate and germination potential.The E.planum cultivated in the open air begun to sprout moss on May 22,2022 in Urumqi.The initial flowering period was May 27,the full flowering period was June 15,the final flowering period was July 9,and the fruit will started to bear fruit on June 29.The initial fruit ripening period was July 10,the full fruit ripening period was July 20.In the introduction site,life history can be completed normally and wintering can be safe.Therefore,the germination ability can be improved by removing the peel manually and soaking the seeds in water for 24 h.