한국자원식물학회지. 2011 Aug; 24 (4): 6064691. doi: 10.7732/kjpr.2011.24.4.438
韓國産 느릅나무속 3樹種의 種子貯藏性 및 發芽特性
Germination Behaviors and Seed Longevities of Three Ulmus Species in Korea
송정호
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임효인
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장경환
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원문보기
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조회
상세조회 17건
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Abstract
This study was conducted to investigate temperature effect on seed germination behaviors and seed viability changes by drying periods of three Ulmus species (Ulmus davidiana var. japonica (Rehder) Nakai, U. pumila L., and U. parvifolia Jacq.) distributed in Korea. Statistical analysis showed that temperature had a significant effect on mean germination time in three Ulmus species, but its effect on germination percentage was only shown in U. parvifolia (p<0.01). U. davidiana var. japonica and U. pumila germinated relatively consistent in all temperature conditions, especially the latter showed high germination behaviors in low temperatures (10-15℃). U. parvifolia germinated well in high temperature (25℃), while this species rarely germinated in low temperature conditions (10-20℃). The results confirm that seeds of U. pumila and U. parvifolia are orthodox seeds which can be stored under 4-8% moisture condition, and U. davidiana var. japonica seed is recalcitrant seed which is difficult to store for a long time. In conclusion, these differences of the germination behaviors for three Ulmus species seem to be adaptive regimes of their natural habitats, respectively.
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Keywords