섬유

relationship between leaf water status, gas exchange, and spectral reflectance in cotton leaves

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 268
measurements of leaf spectral reflectance, the components of water potential, and leaf gas exchange as a function of leaf water content were made to evaluate the use of near-infrared reflectance as an indicator of plant water status. significant correlations were determined between spectral reflectance at 810 nm, 1665 nm, and 2210 nm and leaf relative water content, total water potential, and turgor pressure. however, the slopes of these relationships were relatively shallow and, when evaluated over the range of leaf water contents in which physiological activity occurs (e.g., photosynthesis), had lower r**2 values, and some relationships were not statistically significant. (edited author abstract) 28 refs