Sr-90 Uptake by the Barley (Hordeum vulgare L. emend. Lamark) and Soil-to-Plant Transfer Coefficient

보리의 토양 Sr-90 흡수 및 토양 - 작물체 전이계수

  • 최용호 (한국원자력연구소 환경연구부) ;
  • 정규회 (경기대학교 생물학과) ;
  • 천기정 (한국원자력연구소 환경연구부) ;
  • 김삼랑 (한국원자력연구소 환경연구부) ;
  • 이정호 (한국원자력연구소 환경연구부)
  • Published : 1991.06.30

Abstract

A pot experiment on the Sr-90 uptake by the barley from a loamy-sandy soil of pH 6.05 treated with Sr-90 and slaked lime was carried out in a green house. The rate of Sr-90 uptake at maturity was, on an average, 0.41% for a naked barley Neolssalbori and 0.23% for a covered one Olbori. Transfer coefficients of Sr-90 for the former were higher than those for the latter by about 30-60% depending on the plant parts. There were, on the whole, not significant differences in the rate and in the coefficient among Sr-90 concentration treatments. Slaked lime addition equivalent to about 94kg/10a was not effective for lessening Sr-90 uptake or diminishing Sr-90 transfer coefficient. As transfer coefficients, 1.51, 4.45, 0.35, and 1.30, on the dry weight basis, could be proposed for the stem, leaf, seed, and whole top of the barley, respectively. Growth inhibition or yield decrease due to Sr-90 uptake was not observed.