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Influence of Dry Storage Duration, Gibberellic Acid, and Priming on Germination of $Aster$ $koraiensis$ at Low Temperature
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  • Influence of Dry Storage Duration, Gibberellic Acid, and Priming on Germination of $Aster$ $koraiensis$ at Low Temperature
  • Influence of Dry Storage Duration, Gibberellic Acid, and Priming on Germination of $Aster$ $koraiensis$ at Low Temperature
저자명
Kim. Hyun-Jin,Jung. Hyun-Hwan,Kim. Ki-Sun
간행물명
Horticulture, Environment, and Biotechnology
권/호정보
2010년|51권 6호|pp.471-476 (6 pages)
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한국원예학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The germination response of the Korean daisy ($Aster$ $koraiensis$) seeds was evaluated under conditions of low temperature ($12^{circ}C$) to determine the effects of dry storage duration, GA ($GA_3$ and $GA_{4+7}$), and priming. The effects of priming on germination at alternating temperatures (8/2, 15/9, 22/16, or $29/23^{circ}C$) were also investigated. In seeds collected in 2007, the final germination percentage (FGP) of untreated seeds at constant $12^{circ}C$ was 24, 29, and 37% for 3, 5, and 8 months stored seeds, respectively. However, FGP dramatically increased to 70% after 11 months of dry storage. Similarly, FGP of seeds collected in 2008 was lower than 10% in 1 and 3 months of dry storage, but increased to about 50% after 12 months of dry storage. Both $GA_3$ and $GA_{4+7}$ enhanced FGP by 30-40% in seeds that had been stored for 1 month from seed collection in 2008. On the other hand, priming increased FGP to over 50% after even 1 or 3 months of dry storage, and up to almost 80% after 12 months of dry storage. Additionally, priming increased FGP by 18, 23, and 26% at 8/2, 15/6, and $29/23^{circ}C$, respectively. The mean number of days for 30 or 50% germination of primed seeds at $8/2^{circ}C$ were over 20 days faster than those of untreated seeds. Therefore, priming is recommended to accelerate the emergence of the Korean daisy seeds when directly seeded under low soil temperature condition in spring.