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한국생태학회 / v.14, no.3, 1991년, pp.305-316 
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용동굴레와 각시둥글레의 생장특성과 라메트 개체군의 동태
( Growth Characteristics and Demography of Polygonatum involucratum and Polygonatum humile Ramet Population ) |
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| Growth hadit and demograph in a mature population of polygonatum and polygonatum humile in kanghwa island were studied for two growing seasons. Shoots of two species emerged early spring from the growing apices of the underdground rhizomes which had persisted for up to 1~5 year.after flowering, the ramets produced two rhizome buds at the shoot base. Bacause of the apical dominance in the rhizome system, a new rhizome was developed from only one bud, an actual bud,and the other latent buds were suppressed sothat remained dormant. The latent dud produced a new rhizome only when the actual dud was severed by the herbivores or by the physical obstacles. Therefore, the ramet number is not increased by the new rhizome from the latent bud. however, new ramets dould sometimes grow from latent buds which had been produced more than a year ago. Production of these ramets was main means increasing the ramet numbew and widening the potential zone of exploitation. Changes in size class of each ramet were noyiceable after a tear in small size-classes. Small ramets replaced themselves with larger-sized ramet, while large ramets with similar-sized or smallar-sized ramets. ramet numbers were average 0.82and 1.14 times of those fromthe previous year inp. involucratum and p. humile, though there was between-site variation. Almost all the ramets in the quadrats were alive during the growing season. when the entire rhizome systems were excavater next spring, there were many rhizomesegments without shoots, especially in p. involucratum. therefore, the drcrease of ramet number in p. involucratum in probably due to the climatic factors of winter. |
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The Korean Journal of Ecology / v.14, no.3, 1991년, pp.305-316
한국생태학회
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199111919967531)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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