We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Penetration of blue and UV radiation measured by fiber optics in spruce and fir needles.
- Authors
Bornman, Janet F.; Vogelmann, Thomas C.
- Abstract
The penetration of blue light (460 nm) and UV-A (360 nm) radiation into needles of spruce (Picea engelmannii Parry ex. Engelm.) and fir [Abies lasiocarpa (Hook.) Nutt. var. lasiocarpa] was examined. The distribution of collimated and scattered light In intact needles was measured by quartz fiber optic microprobes. Both blue light and UV-A were attenuated more rapidly with depth in fir than in spruce, although the light profiles for the two light regimes were different; blue light penetrated to a greater depth than UV-A. Removal of the epicuticular wax from the needle surface increased the amount of internal blue light slightly, but had little effect on the amount of UV-A. The differences in light penetration in spruce and fir may be caused by different pigmentation and leaf anatomy.
- Subjects
ABIES lasiocarpa; SPRUCE; CONIFERS; PHYSIOLOGICAL effects of blue light; EFFECT of blue light on plants; LIGHT scattering; ULTRAVIOLET radiation
- Publication
Physiologia Plantarum, 1988, Vol 72, Issue 4, p699
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1988.tb06368.x