본 연구는 국내 산림생명자원 중 광나무의 대량생산을 위한 기초연구로, Priming 처리에 따른 발아 효율성 및 유묘 생육특성에 미치는 영향을 구명하고자 수행하였다. 종자 Priming처리는 대조구, GA3 (10, 100, 200 ㎎·L-1), Ca (NO3)2 (50, 100, 200 mM), KNO3 (50, 100, 200 mM)를 24시간 처리하여 발아특성을 분석하였고, 순화재배에 따른 생육특성 및 활착률을 조사하여 수확량을 비교·분석하였다. 발아특성은 25℃·KNO3 100 mM에서 발아율이 유의적으로(p<0.001) 높았으며, 평균발아일수는 10.3~18.1일로 15℃에서 대체적으로 빠른 발아일수를 나타냈다(p<0.001). 발아속도 및 발아균일지수 또한 25℃·KNO3 100 mM에서 유의적으로 높은 값을 보였다(p<0.001). 생육특성의 경우 2 5℃·KNO3 100 mM 처리에서 유근 길이(5.1±2.4 ㎝), 초장(5.7±0.7 ㎝), 근장(16.6±2.0 ㎝), 건중량(0.079 g)이 유의적으로 가장 높게 나타났다 (p<0.001). 유묘활력지수 또한 25℃·KNO3 100 mM 처리에서 1418.3으로 높았으며, 가장 높은 수확량(16.8 g/㎡)을 나타냈다. 결과적으로 25℃, KNO3 100 mM 처리 시 실내발아에서 발아효율성을 높일 수 있었으며, 순화재배 시 우수한 유묘 생육을 보여 수확량을 증진시킬 수 있었다.

This study is fundamental research for the mass production of Ligustrum japonicum Thunb., a domestic forest genetic resource. It aimed to investigate the effects of priming treatment on germination efficiency and seedling growth characteristics. The priming treatments included a control group, GA3 (10, 100, 200 mg/L-1), Ca (NO3)2 (50, 100, 200 mM), and KNO3 (50, 100, 200 mM), which were applied for 24 hours to analyze germination characteristics. The growth characteristics and rooting rate were investigated through cultivation, and the yield was compared and analyzed. The germination rate was significantly higher (p<0.001) at 25℃ with KNO3 100 mM, and the average germination days ranged from 10.3 to 18.1, indicating generally faster germination at 15℃ (p<0.001). The germination speed and germination performance index also showed significantly higher values at 25℃ with KNO3 100 mM (p<0.001). In terms of growth characteristics, the treatment of 25℃ with KNO3 100 mM resulted in significantly longer Radicle length (5.1±2.4 cm), Plant height (5.7±0.7 cm), Root length (16.6±2.0 cm), and dry weight (0.079 g) (p<0.001). The seedling vigor index was also highest at 25℃ with KNO3 100 mM (1418.3), and it exhibited the highest yield (16.8 g/m2). In conclusion, the germination efficiency could be enhanced by cultivating at 25℃ with KNO3 100 mM, and superior seedling growth was achieved through cultivation, leading to increased yield.

초록
Abstract
서론
재료 및 방법
    1. 공시재료
    2. 종자 발아실험
    3. 종자 발아특성 조사
    4. 활착률 조사
    5. 유묘 생육특성 조사
    6. 통계분석
결과 및 고찰
    1. 종자 발아 특성
    2. 활착률 조사
    3. 생육특성 조사
감사의 글
References

• 진언주(국립산림과학원 산림바이오소재연구소, 박사연구원) | Eon Ju Jin (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea)
• 배은지(국립산림과학원 산림바이오소재연구소, 임업연구사) | Eun Ji Bae (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea)
• 이혁(국립산림과학원 산림바이오소재연구소, 석사연구원) | Hyuck Lee (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea)
• 손예원(국립산림과학원 산림바이오소재연구소, 석사학연과정) | Ye Won Son (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea)
• 최식원(국립산림과학원 산림바이오소재연구소, 임업연구사) | Sik Won Choi (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea)
• 이소라(국립산림과학원 산림바이오소재연구소, 석사연구원) | So Ra Lee (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea)
• 윤준혁(국립산림과학원 산림바이오소재연구소, 임업연구사) | Jun Hyuck Yoon (Forest Biomaterials Research Center, National Institute of Forest Science, Jinju, 52817, South Korea) Corresponding author