Seed Germination Responses and Interspecific Variations to Different Incubation Temperatures in Eight Veronica Species Native to Korea

Song, Su Jung; Shin, Un Seop; Oh, Hyo-Jung; Kim, Sang Yong; Lee, Seung Youn

doi:10.12972/kjhst.20190003

Cited by 14 publications

(9 citation statements)

References 21 publications

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“…diamantiaca (Nakai) T. Yamaz. were enhanced by GA 3 treatment to 71.3%, 87.2%, and 91.7% at GA 3 concentrations of 50, 100, and 1000 mg/L, respectively, compared with that of the control (44.7%) (Song et al 2019b). Zanthoxylum piperitum (Kim et al 1997), Exochorda serratifolia , Pinus pumila (Lim et al 2015), Lychnis wilfordii (Regel) Maxim (Ryu et al 2017), and many other species have also been shown to have improved germination percentages following gibberellin treatment, suggesting that this treatment breaks the PD of seeds.…”

Section: Discussionmentioning

confidence: 82%

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Non-deep physiological dormancy in seeds of Euphorbia jolkinii Boiss. native to Korea

Shin

Lee

et al. 2021

j ecology environ

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Background Euphorbia jolkinii Boiss. is a perennial species native to Jeju Island and the southern coastal area of Korea. Particularly on Jeju Island, the yellow flowers of E. jolkinii Boiss. have a high ornamental value because of their contrast with basalt. This study was conducted to investigate the effects of different temperatures (5, 15, 20, and 25 °C) and gibberellic acid (GA3) concentrations (0, 10, 100, or 1000 mg/L) on seed dormancy and germination of E. jolkinii. In addition, we classified the seed dormancy type and compared types with those of other species in the same genus. Results The number of seeds with viable embryos and endosperms was approximately 66%. The final germination percentages at 5, 15, 20, and 25 °C were 51.7%, 83.5%, 2.6%, and 0.0%, respectively. In GA3 concentration experiments, the final germination percentages of 0, 10, 100, and 1000 mg/L were 83.5%, 91.7%, 79.1%, and 83.4%, respectively, at 15 °C conditions, and 0.0%, 6.9%, 13.2%, and 27.3%, respectively, at 25 °C. Conclusions Germination improved at temperatures of 15 °C or lower. Furthermore, GA3 treatment effectively reduced germination times. Thus, the seeds of E. jolkinni were classified as having non-deep physiological dormancy.

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Section: Discussionmentioning

confidence: 82%

“…The peripheral type has a large embryo and is curved along the seed coat. In the axile type, the embryo varies and is located in the center of the seed (Song et al 2019b). E. jolkinii seeds were axile, with the embryo located along the center of the seed (Fig.…”

Section: Discussionmentioning

confidence: 99%

Non-deep physiological dormancy in seeds of Euphorbia jolkinii Boiss. native to Korea

Shin

Lee

et al. 2021

j ecology environ

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“…In previous studies, seed dormancy of V. virginicum and V. parnkalliana was classified as PD and MPD, respectively [20]. Song et al [21] analyzed the ratio of embryo length to seed length (E:S ratio) in eight species of the genus Veronica (V. dahurica, V. rotunda, V. kiusiana var. diamantiaca, V. pusanensis, V. rotunda var.…”

Section: Discussionmentioning

confidence: 99%

“…Fifteen species of Veronica were classified as having PD, and V. biloba and V. wormskjoldii were found to have non-dormant seeds [13]. Song et al [21] reported that eight species of Veronica native to the Korean Peninsula had MD or MPD. Some closely related species show the same dormancy type (trait stasis; [22]), whereas some exhibit significant differences in the type of depth of dormancy (trait divergence; [23]).…”

Section: Introductionmentioning

confidence: 99%

“…To determine the dormancy class, it is important to establish whether seeds contain embryos that are fully developed or underdeveloped at maturity and, therefore, if the embryo must elongate inside the seed before germination. Guerin et al [20] and Song et al [21] measured embryo growth in the seeds of V. parnkalliana and other Veronica species. However, many previous studies have not accurately measured growth (or the absence of growth) of the embryo in the seeds of species of Veronica and Veronicastrum [13].…”

Section: Introductionmentioning

confidence: 99%

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Seed Dormancy Class and Ecophysiological Features of Veronicastrum sibiricum (L.) Pennell (Scrophulariaceae) Native to the Korea Peninsula

Jang

Chung

Rhie

et al. 2022

Plants

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Veronicastrum sibiricum is a perennial species distributed in Korea, Japan, Manchuria, China, and Siberia. This study aimed to determine the requirements for germination and dormancy break of V. sibiricum seeds and to classify the kind of seed dormancy. Additionally, its class of dormancy was compared with other Veronicastrum and Veronica species. V. sibiricum seeds were permeable to water and had a mature embryo during seed dispersal. In field conditions, germination was prevented by physiological dormancy, which was, however, relieved by March of the next year, allowing the start of germination when suitable environmental conditions occurred. In laboratory experiments, the seeds treated with 0, 2, 4, 8, and 12 weeks of cold stratification (4 °C) germinated to 0, 79, 75, 72, and 66%, respectively. After the GA3 treatment (2.887 mM), ≥90% of the seeds germinated during the four incubation weeks at 20/10 °C. Thus, 2.887 mM GA3 and at least two weeks at 4 °C were effective in breaking physiological dormancy and initiating germination. Therefore, the V. sibiricum seeds showed non-deep physiological dormancy (PD). Previous research, which determined seed dormancy classes, revealed that Veronica taxa have PD, morphological (MD), or morphophysiological seed dormancy (MPD). The differences in the seed dormancy classes in the Veronicastrum-Veronica clade suggested that seed dormancy traits had diverged. The results provide important data for the evolutionary ecological studies of seed dormancy and seed-based mass propagation of V. sibiricum.

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The complete chloroplast genome sequence of Pseudolysimachion kiusianum var. diamantiacum (Plantaginaceae)

Ha,

Kim,

Kim

et al. 2024

Journal of Asia-Pacific Biodiversity

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Seed Germination Responses and Interspecific Variations to Different Incubation Temperatures in Eight Veronica Species Native to Korea

Cited by 14 publications

References 21 publications

Non-deep physiological dormancy in seeds of Euphorbia jolkinii Boiss. native to Korea

Non-deep physiological dormancy in seeds of Euphorbia jolkinii Boiss. native to Korea

Seed Dormancy Class and Ecophysiological Features of Veronicastrum sibiricum (L.) Pennell (Scrophulariaceae) Native to the Korea Peninsula

The complete chloroplast genome sequence of Pseudolysimachion kiusianum var. diamantiacum (Plantaginaceae)

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