Morphological Characteristics and Germination Conditions of Seeds in Arabis pendula L.

Abstract

-This study aimed to investigate the morphological characteristics and optimal germination conditions in seeds of Arabis pendula L., a traditionally edible and medicinal plant. The external seed shape was circular-obovate with narrow wings and dark brown. The seed length and width were 1.25 ㎜ and 1.47 ㎜, respectively. The seeds were exalbuminous and the embryo was a bent type. Seed germination was the highest (49.7%) at 20°C under dark conditions among the various temperature and light conditions applied. However, under the dark condition, the seedling was weak, overgrown, and the cotyledons were small and folded. To improve the germination and growth of seedlings, the seeds were pre-treated with GA3 solutions of varying concentrations (0, 200, 500, and 1,000 ㎎/L). The seed germination and seedling growth were effectively improved by GA3 pre-treatment. The germination rate was the highest (97.3%), mean germination time was the shortest (8.1 days), and a vigorous growth of seedlings was observed upon pre-soaking the seeds in 500 ㎎/L GA3 solution.In conclusion, the best method for germination was pre-soaking in 500 ㎎/L GA3 (4℃, dark, 24 h) and incubating the seeds at 20℃ for 15 days.

Diversity, Phylogeny, and Host-Specialization of Hyaloperonospora Species in Korea

“…Cardamine scutata is a common herb distributed in northeast Asia, including China [ 39 ], Japan [ 40 ], Korea [ 41 ], and Far Eastern Russia [ 42 ]. Similarly, C. pendulus is mainly distributed in northeast Asia, but has also been rarely reported in Europe [ 43 44 ]. To date, there has been no report of downy mildew on these two plants worldwide.…”

Dormancy-release and germination improvement of Korean bellflower (Campanula takesimana Nakai), a rare and endemic plant native to the Korean peninsula

“…The population of wild plants is decreasing recently due to climate change, forest burning, and native habitat destruction, and basic data on germination characteristics of seeds are required for forest restoration and conservation of these native plants. Moreover, a mass propagation method must be established to industrialize plant materials; therefore; it is important to create a propagation protocol [ 7 ]. Appropriate methods that should be considered for the propagation of plants based on plant species, habitat, life cycle, and characteristics include asexual reproduction, sexual reproduction, and tissue culture.…”