UV-A according to CIE and ISO standards: 315-400 nm. UV-A according to
common non-standard practice: 320-400 nm. UV-A2 according to CIE report
134/1: 315-340 nm. UV-A1 according to CIE report 134/1: 340-400 nm. UV-Asw
according to non-standard use possibly suitable for plants: 315-350 nm.
UV-Alw according to non-standard use possibly suitable for plants: 350-400
nm.
Usage
UVA(std = "ISO")
UVA1(std = "CIE")
UVA2(std = "CIE")
UVAsw(std = "plants")
UVAlw(std = "plants")
UVAsw(std = "plants")
Value
A waveband object wavelength defining a wavelength range.
Rai N, Morales LO, Aphalo PJ (2021) Perception of solar UV radiation by
plants: photoreceptors and mechanisms. Plant Physiology 186: 1382–1396.
tools:::Rd_expr_doi("10.1093/plphys/kiab162")