A study of the total ultraviolet exposure to all the leaves for small plant growth
Article
Article Title | A study of the total ultraviolet exposure to all the leaves for small plant growth |
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ERA Journal ID | 2243 |
Article Category | Article |
Authors | Parisi, A. V. (Author), Wong, J. C. F. (Author) and Galea, V. J. (Author) |
Journal Title | Journal of Photochemistry and Photobiology, B: Biology |
Journal Citation | 45 (1), pp. 36-42 |
Number of Pages | 7 |
Year | 1998 |
Publisher | Elsevier |
Place of Publication | Lausanne, Switzerland |
ISSN | 1011-1344 |
1873-2682 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/S1011-1344(98)00157-2 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1011134498001572 |
Abstract | A dosimetric spectrum evaluator was employed to evaluate the total biologically effective UV (UVBE(plant)) on the surface of all the leaves of small plants. It was applied to evaluate the UVBE (plant) to soybean leaves (Glycine max [L.] Merr.), cultivar Essex. The plants received three levels of UVBE (plant) averaged over all the leaves (0, 8.1 and 15.8 J cm-2) from emergence to the V7 growth stage. As canopy closure occurred with plant growth, the ratio of the average of the UVBE (plant) to all leaves compared to that on the uppermost set of leaves changed from 0.85 to 0.50 to 0.29 for the V2, V4 and V7 stages respectively. Measurement of the UVBE (plant) at the top of the canopy would introduce errors of 18%, 100% and 245% at the V2, V4 and V7 stages respectively compared to the actual exposure to the plant leaves. The evaluation of leaf UVBE (plant) allows formulation of models defining plant response such as suppression of plant height and leaf area in terms of the UV exposure to all the leaves along with the effects on the fresh and dry weights of the leaves, stems and roots. |
Keywords | biologically effective UV; ultraviolet; dosimeters; UV spectrum; UV effects; plants |
ANZSRC Field of Research 2020 | 310806. Plant physiology |
370106. Atmospheric radiation | |
511099. Synchrotrons and accelerators not elsewhere classified | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Centre for Astronomy, Solar Radiation and Climate |
Queensland University of Technology | |
University of Queensland |
https://research.usq.edu.au/item/9xw2w/a-study-of-the-total-ultraviolet-exposure-to-all-the-leaves-for-small-plant-growth
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