Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Comparison of Germination Characteristics and Daily Seed Germinating Pattern in Fine-textured Fescues

세엽형 훼스큐속 잔디의 발아특성 및 일일 발아패턴 비교

  • Kim, Kyoung-Nam (Department of Horticulture, College of Science and Technology, Sahmyook University) ;
  • Park, So-Hyang (Department of Horticulture, Graduate School, Sahmyook University)
  • 김경남 (삼육대학교 과학기술대학 원예학과) ;
  • 박소향 (삼육대학교 대학원 원예학과)
  • Received : 2010.02.07
  • Accepted : 2010.05.10
  • Published : 2010.08.31
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Abstract

Research was initiated to investigate early establishment characteristics and germination pattern of fine-textured fescues (FF). Six varieties from Chewings fescue ($Festuca$ $rubra$ L. ssp. $commutata$ Gaud., CF), creeping red fescue ($F.$ $rubra$ L. ssp. $rubra$ Gaud., CRF), hard fescue ($F.$ $ovina$ ssp. $longifolia$ Thuill., HF) and sheep fescue ($F.$ $ovina$ L., SF) were evaluated in the study. An alternative environmental condition requiring a FF germination test by International Seed Testing Association (ISTA) was applied in the experiment, consisting of 8-hr light at $25^{\circ}C$ and 16-hr dark at $15^{\circ}C$ (ISTA conditions). Daily and cumulative germination patterns were measured and analyzed on a daily basis. Significant differences were observed in germination pattern, days to the first germination, days to 50% germination, days to 60% germination, and germination rate. The final germination percentage was variable with species and varieties, being 40.25 to 82.00% at the end of study. There were considerable variations in early germination characteristics and germination pattern among FF species. The first germination in all entries except HF was initiated between 5 and 6 DAS (days after seeding) under ISTA conditions, while HF between 6 and 7 DAS, being 1 day later. It was 8 to 10 DAS in days to the 50% germination, which was 2 to 4 days after the first germination date. Days to the 60% germination were 9.10 to 14.80 DAS under ISTA conditions, being 5.70 days in differences among the entries. CF 'Jamestown II' and 'Shadow II' and HF 'Aurora Gold' were the fast varieties. The slowest one was HF 'Rescue 911'. Among FF species, turf establishment speed was becoming faster in CRF, SF, HF and CF in this order. Information on differences in germination characteristics and pattern from this study would be usefully applied for golf course design and construction, when established with FF.

본 연구는 세엽형 훼스큐 초종 간 초기 발아특성 및 발아 패턴을 파악하고자 시작하였다. 공시재료는 CF, CRF, HF 및 SF 4종류에서 선정한 6품종을 이용하였다. 발아실험은 국제종자검정협회 요구 조건인 ISTA 변온조건에서 수행하였으며 조사는 치상 후 1일 간격으로 일일 발아율 및 누적 발아율 데이터를 분석하였다. ISTA 변온환경에서 세엽형 훼스큐 종자의 발아력, 발아특성 및 발아패턴은 초종 및 품종에 따라 차이가 유의하게 나타났다. 종자 발아력은 품종에 따라 40.25-82.00% 사이로 다양하게 나타났다. 공시 초종의 발아패턴 경향은 CF, CRF 및 SF는 치상 후 5-6일 사이에 최초 발아가 시작되었다. 하지만 HF는 1일 늦은 치상 후 6-7일 사이에 최초 발아가 시작되어 초종에 따라 1일간 차이가 있었다. 세엽형 훼스큐 초종이 발아율 50%에 도달한 기간은 최초 발아 후 2-4일 경과 후 인 치상 후 8-10일 사이로 초종 간 2일 정도의 차이가 있었다. 또한 실무적으로 필요한 발아율 60% 도달기간은 초종에 따라 치상 후 최소 9.10일에서 최대 14.80일 사이로 초종 간 발아속도 차이가 5.70일로 나타났다. 공시 초종 중 60% 발아율 도달 기간이 가장 빠른 품종은 CF 'Jamestown II', CF 'Shadow II' 및 HF 'Aurora Gold' 품종이었고, 반대로 가장 느린 종류는 HF 'Rescue 911' 품종이었다. 그리고 ISTA 변온환경에서 세엽형 훼스큐 초종 간 조성 속도는 CRF < SF < HF < CF 순서로 빠른 것으로 판단되었다. 이러한 초종 및 품종 간 특성 비교 데이터는 골프장 등 잔디밭 시공 시 실무적인 기초 자료로 유용하게 활용될 수 있을 것이다.

Keywords

References

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