Non-Deep Physiological Dormancy in Seed and Germination Requirements of Lysimachia coreana Nakai

This study aimed to determine the type of seed dormancy and to identify a suitable method of dormancy-breaking for an efficient seed viability test of Lysimachia coreana Nakai. To confirm the effect of gibberellic acid (GA3) on seed germination at different...

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Autores principales:	Saeng Geul Baek, Jin Hyun Im, Myeong Ja Kwak, Cho Hee Park, Mi Hyun Lee, Chae Sun Na, Su Young Woo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cold stratification gibberellic acid (GA<sub>3</sub>) germination rate (GR) <i>Lysimachia</i> seed dormancy warm stratification Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/ac87e8c6e73b4c558388e1aedeb351b0
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spelling	oai:doaj.org-article:ac87e8c6e73b4c558388e1aedeb351b02021-11-25T17:47:36ZNon-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai10.3390/horticulturae71104902311-7524https://doaj.org/article/ac87e8c6e73b4c558388e1aedeb351b02021-11-01T00:00:00Zhttps://www.mdpi.com/2311-7524/7/11/490https://doaj.org/toc/2311-7524This study aimed to determine the type of seed dormancy and to identify a suitable method of dormancy-breaking for an efficient seed viability test of <i>Lysimachia coreana</i> Nakai. To confirm the effect of gibberellic acid (GA<sub>3</sub>) on seed germination at different temperatures, germination tests were conducted at 5, 15, 20, 25, 20/10, and 25/15 °C (12/12 h, light/dark), using 1% agar with 100, 250, and 500 mg·L<sup>−1</sup> GA<sub>3</sub>. Seeds were also stratified at 5 and 25/15 °C for 6 and 9 weeks, respectively, and then germinated at the same temperature. Seeds treated with GA<sub>3</sub> demonstrated an increased germination rate (GR) at all temperatures except 5 °C. The highest GR was 82.0% at 25/15 °C and 250 mg·L<sup>−1</sup> GA<sub>3</sub> (4.8 times higher than the control (14.0%)). Additionally, GR increased after cold stratification, whereas seeds did not germinate after warm stratification at all temperatures. After cold stratification, the highest GR was 56.0% at 25/15 °C, which was lower than the GR observed after GA<sub>3</sub> treatment. We hypothesized that <i>L. coreana</i> seeds have a non-deep physiological dormancy and concluded that 250 mg·L<sup>−1</sup> GA<sub>3</sub> treatment is more effective than cold stratification (9 weeks) for <i>L. coreana</i> seed-dormancy-breaking.Saeng Geul BaekJin Hyun ImMyeong Ja KwakCho Hee ParkMi Hyun LeeChae Sun NaSu Young WooMDPI AGarticlecold stratificationgibberellic acid (GA<sub>3</sub>)germination rate (GR)<i>Lysimachia</i>seed dormancywarm stratificationPlant cultureSB1-1110ENHorticulturae, Vol 7, Iss 490, p 490 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cold stratification gibberellic acid (GA<sub>3</sub>) germination rate (GR) <i>Lysimachia</i> seed dormancy warm stratification Plant culture SB1-1110
spellingShingle	cold stratification gibberellic acid (GA<sub>3</sub>) germination rate (GR) <i>Lysimachia</i> seed dormancy warm stratification Plant culture SB1-1110 Saeng Geul Baek Jin Hyun Im Myeong Ja Kwak Cho Hee Park Mi Hyun Lee Chae Sun Na Su Young Woo Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai
description	This study aimed to determine the type of seed dormancy and to identify a suitable method of dormancy-breaking for an efficient seed viability test of <i>Lysimachia coreana</i> Nakai. To confirm the effect of gibberellic acid (GA<sub>3</sub>) on seed germination at different temperatures, germination tests were conducted at 5, 15, 20, 25, 20/10, and 25/15 °C (12/12 h, light/dark), using 1% agar with 100, 250, and 500 mg·L<sup>−1</sup> GA<sub>3</sub>. Seeds were also stratified at 5 and 25/15 °C for 6 and 9 weeks, respectively, and then germinated at the same temperature. Seeds treated with GA<sub>3</sub> demonstrated an increased germination rate (GR) at all temperatures except 5 °C. The highest GR was 82.0% at 25/15 °C and 250 mg·L<sup>−1</sup> GA<sub>3</sub> (4.8 times higher than the control (14.0%)). Additionally, GR increased after cold stratification, whereas seeds did not germinate after warm stratification at all temperatures. After cold stratification, the highest GR was 56.0% at 25/15 °C, which was lower than the GR observed after GA<sub>3</sub> treatment. We hypothesized that <i>L. coreana</i> seeds have a non-deep physiological dormancy and concluded that 250 mg·L<sup>−1</sup> GA<sub>3</sub> treatment is more effective than cold stratification (9 weeks) for <i>L. coreana</i> seed-dormancy-breaking.
format	article
author	Saeng Geul Baek Jin Hyun Im Myeong Ja Kwak Cho Hee Park Mi Hyun Lee Chae Sun Na Su Young Woo
author_facet	Saeng Geul Baek Jin Hyun Im Myeong Ja Kwak Cho Hee Park Mi Hyun Lee Chae Sun Na Su Young Woo
author_sort	Saeng Geul Baek
title	Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai
title_short	Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai
title_full	Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai
title_fullStr	Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai
title_full_unstemmed	Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai
title_sort	non-deep physiological dormancy in seed and germination requirements of <i>lysimachia coreana</i> nakai
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ac87e8c6e73b4c558388e1aedeb351b0
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Non-Deep Physiological Dormancy in Seed and Germination Requirements of <i>Lysimachia coreana</i> Nakai

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