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Characteristics of Seed Germination and Potted Seedlings Growth of Endemic Species, Sambucus sieboldiana var. pendula and Sambucus sieboldiana for. xanthocarpa

특산식물 말오줌나무와 노랑말오줌나무의 종자발아 및 분화묘 재배특성

  • Lee, Su Gwang (Useful Plant Resources Center, Korea National Arboretum) ;
  • Lee, Dong Jun (Ulleunggun Agricultural Technology Service Center) ;
  • Kim, Hyo Yun (Useful Plant Resources Center, Korea National Arboretum) ;
  • Ku, Ja Jung (Plant Conservation Division, Korea National Arboretum)
  • 이수광 (국립수목원 유용식물증식센터) ;
  • 이동준 (울릉군 농업기술센터) ;
  • 김효연 (국립수목원 유용식물증식센터) ;
  • 구자정 (국립수목원 산림자원보존과)
  • Received : 2014.03.09
  • Accepted : 2014.06.11
  • Published : 2014.09.30

Abstract

This study was carried out to determine the effects of seed storage methods and pre-treatments on seed germination, soil types and shading conditions on potted seedlings growth of S. sieboldiana var. pendula and S. sieboldiana for. xanthocarpa, endemic species in Korea. The seed germination rate of S. sieboldiana var. pendula was the highest at 48.6% when seeds were treated with stratification for 60 days and then soaked in 100 ppm $GA_3$. And seed germination rate of S. sieboldiana for. xanthocarpa was the highest at 51.4% when seeds were pre-chilled for 30 days and then soaked in 100 ppm $GA_3$. And potted seedlings of S. sieboldiana var. pendula showed the best quality under 50% shading in bedsoil with the growth characteristics of plant height (41 cm), number of leaves(8), leaf width (16 cm), leaf length (18 cm), root length (22 cm), fresh weight(aerial part/root part; 20/6.9 g) and dry weight(aerial part/root part; 4.5/2.0 g). And potted seedlings of S. sieboldiana for. xanthocarpa showed the best quality under non-shading in bedsoil with the growth characteristics of plant height (39 cm), number of leaves(10), leaf width (12 cm), leaf length (15 cm), root length (22 cm), fresh weight (aerial part/root part; 21/13 g) and dry weight (aerial part/root part; 4.2/2.2 g). Therefore, seeds treated with stratification or prechilling and then soaked in $GA_3$ were effective in germination of S. sieboldiana var. pendula and S. sieboldiana for. xanthocarpa, and potted seedlings should be cultivated in bedsoil under non or 50% shading condition.

본 연구는 국내 특산식물 말오줌나무와 노랑말오줌나무의 종자저장방법 및 전처리가 종자발아에 미치는 영향과 토양종류 및 차광이 분화묘 재배에 미치는 영향을 구명하고자 수행되었다. 그 결과 말오줌나무의 종자 발아율은 60일간 노천매장 후 $GA_3$ 100 ppm 24시간 침지처리구에서 가장 높은 발아율(48.6%)을 보였다. 노랑말오줌나무의 종자 발아율은 30일간 저온습윤처리 후 $GA_3$ 100 ppm 24시간 침지처리구에서 가장 높은 발아율(51.4%)을 나타내었다. 발아된 말오줌나무 유묘(신초 2 cm, 뿌리 3 cm)를 원예용상토로 충진된 분화 용기에 이식하여 50% 차광처리 조건에서 75일간 재배하면 초장 41 cm, 엽수 8매, 엽폭 16 cm, 엽장 18 cm, 근장 22 cm, 생중량 상/하, 20/6.9 g, 건중량 상/하, 4.5/2.0 g 이상의 우수한 분화묘 생산이 가능하였다. 이와 비슷하게 발아된 노랑말오줌나무 유묘(신초 2 cm, 뿌리 3 cm)를 원예용상토로 충진된 분화 용기에 이식하여 무차광처리 조건(대조구)에서 75일간 생육시키면 초장 39 cm, 엽수 10매, 엽폭 12 cm, 엽장 15 cm, 근장 22 cm, 생중량 상/하, 21/13 g, 건중량 상/하, 4.2/2.2 g 이상의 우수한 분화묘 생산이 가능하였다. 따라서 말오줌나무와 노랑말오줌나무의 종자발아에는 노천매장이나 저온습윤처리 후 $GA_3$ 용액 침지처리가 필요하고 분화묘 재배에는 원예용상토가 충진된 분화용기에 이식 후 무차광 혹은 50% 차광처리가 필요한 것으로 나타났다.

Keywords

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