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한국식물학회 / v.47, no.4, 2004년, pp.396-400 
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( Effects of Various Pretreatments on Seed Germination of Calystegia soldanella (Convolvulaceae), a Coastal Sand Dune Plant ) |
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| 초 록 |
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| We tested various pretreatments to enhance the germination of `Sea bells' (Calystegia soldanella Roem. et Schult). One experiment, which improved the germination rate by 70%, involved first scarifying the seed coats, then immersing the seeds in 50 ppm $GA_3$ for 24 h. A $GA_3$-alone pretreatment did not increase germination. However, the most effective method, with a 100% success rate, included 3 h of acid pretreatment with 98% $H_2SO_4$. We also used scanning electron microscopy (SEM) to examine the seed-coat surfaces and cross-sections of dry seeds. SEM showed structural differences between seeds that were not treated and those exposed to 98% $H_2SO_4$. The latter treatment allowed the seed coats to crack and break, thereby disrupting their physical dormancy. |
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| 키워드 |
| Calystegia soldanella;$GA_3$;$H_2SO_4$;scarification;seed germination;SEM; |
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Journal of Plant Biology / v.47, no.4, 2004년, pp.396-400
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415875830721)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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