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Seed Treatment and Plug Production of Ornamental Grasses (Gramineae spp.)

화본과 관상용 그래스의 종자처리와 플러그 묘 생산

  • Kim, Ki Dong (Dept. of Biological Sci. and Tech., Graduate School of Yonsei University) ;
  • Kim, Yoon Joong (Dept. of Biological Sci. and Tech., Graduate School of Yonsei University) ;
  • Lee, Jong Min (Dept. of Biological Sci. and Tech., Graduate School of Yonsei University) ;
  • Lee, Jeong Ho (Dept. of Golf Course Management, Korea Golf University) ;
  • Joo, Young Kyoo (Dept. of Biological Sci. and Tech., Graduate School of Yonsei University)
  • 김기동 (연세대학교 대학원 생명과학기술학과) ;
  • 김윤중 (연세대학교 대학원 생명과학기술학과) ;
  • 이종민 (연세대학교 대학원 생명과학기술학과) ;
  • 이정호 (한국골프대학교 코스매니지먼트과) ;
  • 주영규 (연세대학교 대학원 생명과학기술학과)
  • Received : 2013.09.13
  • Accepted : 2013.12.19
  • Published : 2013.12.31

Abstract

This research was carried out to establish a mass-production method and to develop ornamental Gramineae species as cash crops for famers as three species of ornamental grasses were used for seed treatment and plug production. Germination rates of Arundinella hirta were improved to 52.6% by soaking in 4% NaOCl for 60 min and 49.4% with 4% NaOH for 30 min. Germination rates of Panicum virgatum were 20.3% and 22.4% when treated with 4% NaOCl for 10 min and 2% NaOH for 60min treatment, respectively. Pennisetum alopecuroides showed germination rates higher than 98% with both 4% of NaOCl and NaOH for 60 min. When the same size of trays were used, Pennisetum showed faster plug formation in 21 and 30 days with 162 and 40 cell trays, respectively. Arundinella showed a similar trend with Pannicum in completing plug formation, those took 32, 41, and 44 days with the 162, 72, and 40 cell tray, respectively. Plug production was faster with smaller cells; however, total growing period was longer with larger cells in general.

유전자원으로서의 화본과(Gramineae) 관상용 그래스 식물의 번식을 위한 대량생산체계 확립 및 향후 농가소득 작물로의 개발을 목표로 3가지 화본과 관상용 그래스(ornamental grass)의 종자 발아촉진과 플러그 묘 생산에 대한 연구를 수행하였다. 종자처리에 의한 새(Arundinella hirta var. ciliate Kodiz)의 최종 발아율은 NaOCl 4% 농도로 60분 처리구가 52.6%로 나타났으며, NaOH 4% 농도로 30분 처리구가 49.4%로 가장 높았다. Switchgrass(Panicum virgatum)는 NaOCl 4% 농도로 10분 처리구가 20.3%의 발아율을 보였고, NaOH 2% 농도로 60분 처리구가 22.4%로 가장 높았다. 수크령(Pennisetum alpecuroides)은 NaOCl 4% 농도로 60% 처리구가 98.4%의 발아율을 보였고, NaOH는 4% 농도로 30분 처리구가 98.5%로 가장 높았다. 플러그 묘 생산 분석결과 구의 크기가 동일할 경우 초종별로는 수크령이 약 21일(162구)~30일(40구)로 가장 빠르게 형성되었다. 새의 플러그 형성 시점은 약 32일(162구)~44일(40구)로 Switchgrass 32일(162구)~40일(40구)과 비슷하게 나타났다. 3초종 모두 구의 크기가 작을수록 플러그 형성시점이 빠르게 나타났으나, 크기가 클수록 생장 기간이 길어지는 경향을 보였다.

Keywords

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  1. Spring Green-up and Winter Leaf Discoloration of Three Ornamental Grasses (Gramineae spp.) vol.4, pp.1, 2015, https://doi.org/10.5660/WTS.2015.4.1.49