Quality Classification and Its Application Based on Certification Standards of Kentucky Bluegrass(Poa pratensis L.) Seed

켄터키 블루그래스(Poa pratensis L.) 종자의 보증 기준에 따른 품질 분류와 적용

  • Kim, Shin-Jae (Dept. of Life and Industry, Graduate School of Agriculture and Animal Sci., Konkuk University) ;
  • Joo, Young-Kyoo (Div. of Biological Science & Technology, Yonsei University) ;
  • Lee, Jae-Pil (Dept. of Life and Industry, Graduate School of Agriculture and Animal Sci., Konkuk University) ;
  • Kim, Doo-Hwan (Dept. of Life and Industry, Graduate School of Agriculture and Animal Sci., Konkuk University)
  • Received : 2009.11.30
  • Accepted : 2009.12.17
  • Published : 2009.12.31

Abstract

The purpose of seed certification is to preserve the genetic purity and identity of seed varieties. This study is to provide information concerning seed certification procedures and certification standards of Kentucky bluegrass especially used in golf courses. We analyzed data from the seed certification standards of three states (Washington, Idaho and Oregon) in U.S.A. The certification processes both field inspection and laboratory requirement satisfying the minimum seed quality standards. The seed harvesting field must be propagated with the specified class of seeds and requires an adequate isolated distance from other crops. Moreover, the field should be clean and free from the objectionable weeds. The seed analysis tests include a germination rate, a percentage of pure seed, contents of other crop seed, weed seed, and inert matter. The certification standards of the certified seed and the sod quality seed showed general similarity in all three states. The certification standards of the sod quality seed should have less than 0.02% of maximum weed seed. The certified seed should have less than 0.3% of maximum weed seeds. Those certification standards of seed quality should guaranty the quality of turfgrass establishment of golf course.

종자보증의 목적은 종자의 유전적 순수성과 품종의 혈통을 보장하는 것이다. 본 연구는 골프장에 사용되는 켄터키 블루그래스 종자의 품질 보증 규정과 절차에 대한 정보를 제공하기 위하여 행하여졌다. 연구 방법은 미국3개주(와싱턴, 아이다호, 오리건주)의 종자 보증과정과 종자 품질 보증 규정을 비교 분석하였다. 보증과정은 포장과 실험실 내에서의 최소 종자품질기준을 만족하여야 한다. 종자 수확포장은 정해진 수준의 종자를 파종하여야 하고, 다른작물로부터 일정거리를 격리하여야 한다. 더구나 수확포장은 청결하며 금지잡초로부터 안전하여야 한다. 종자보증 시험은 발아율, 순수종자 백분율, 이종종자, 잡초 및 이물질 함량 검사를 포함한다. 품질보증종자와 뗏장용 종자의 품질기준은 3개 주에서 비슷하였다. 뗏장용 종자의 품질 기준은 최대 0.02%, 품질보증종자의 경우에는 0.3% 이내의 잡초종자 함량을 허용 기준치로 제한하고 있다. 이러한 종자품질기준은 종자의 품질을 보장하고 골프코스의 잔디조성 품질을 보장하고 있다.

Keywords

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