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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.20, no.5, 2007³â, pp.398-403
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( Effect of Immersion Temperatures and Times on Moisture Absorption and Germination of Cryptomeria japonica Seeds )
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This study was carried out to enhance germination of the seed by different immersion temperatures(15, 20, 25, 30 and $35^{circ}C$) and times(1, 6, 12, 18, 24, 36 and 48 hours) in Cryptomeria japonica that is a major plantation species in the southern Korea. Optimum germination temperature was between $20^{circ}C$ and $25^{circ}C$, and the lowest germination was observed at $35^{circ}C$ Moisture absorption increased with increasing immersion time as a whole and was high at $30^{circ}C$ and $35^{circ}C$. Initial moisture absorption rate was highest at $30^{circ}C$ whereas was lowest at $15^{circ}C$ Moisture absorption rate constant was also high at $30^{circ}C$ and $35^{circ}C$, however, it was relatively low at $15^{circ}C$ and $20^{circ}C$ Germination was the highest when the seeds were immersed for 48 hours at $30^{circ}C$. In mean germination time(MGT) the seeds immersed for 48 hours at $30^{circ}C$ did not differ from non-treatment, while the others showed higher values than non-treatment. Consequently, germination could be enhanced and MGT was kept by optimum immersion temperature and time.
 
Ű¿öµå
Cryptomeria japonica;Immersion;Absorption;Germination;Seed;
 
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.20, no.5, 2007³â, pp.398-403
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200704503654744)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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