Seed storage conditions and germination characteristics of medicinal plant Erigeron breviscapus

Authors Zhao Luyan; Li Weiqi; Wang Dandan

Journal Guihaia , 2019,12:39

Abstract Seeds of Erigeron breviscapus collected from Yunnan in spring were used as the test materials,the effects of storage humidity,storage temperature,storage duration and illumination,temperature,imbibitional condition on seed germination rate were studied.The results were as follows:(1)Reducing the storage humidity(15%RH)and the storage temperature(-20,4 ℃)of the seeds was beneficial to the seed preservation,which could prolong the seed life to more than two years,and the germination rate could reach more than 80%;High temperatures(35,45 ℃)and high humidity(60% RH)accelerated the aging of seeds,which was not conducive to preservation,so the seeds were short-lived seed.(2)There was no significance of germination rate in either light or dark,so the seeds were light-neutral,but light was beneficial to the seedling formation after seed germination.(3)The optimum temperature for the seed germination was 25 ℃,and the germination rate was 84.37%.(4)The low temperature(4 ℃)and high temperatures(30,35 ℃)must be avoided for seed germination in production,which was beneficial to increase the emergence rate.(5)The seeds were insensitive to imbibitional damage,so the seeds were cold-resistant.Therefore,in seed research and production of medicinal materials,mature seeds should be dried and sealed in low temperature immediately after harvest,and sown early in spring;In seedling production,suitable lighting condition is necessary,a separate constant temperature(25 ℃)culture room should be set,and cold season sowing should also be avoided.This paper studying the suitable storage conditions and germination characteristics for the seeds of E.breviscapus,will provide effective guidance for the reasonable storage of the rare medicinal species and high yield planting in future studies.

Species covered 短葶飞蓬 Erigeron breviscapus