Abstract
We investigated the effects of UV-A and UV-B enhanced radiation on plants ofPhaseolus mungo. Low doses caused varying responses in such growth and yield components as shoot and root lengths, leaf area, fresh mass and dry matter, pod numbers, and seed numbers and weights. Compared with the performances of the control plants, supplementation with UV-A radiation promoted overall growth, while UV-B radiation inhibited development Moreover, both sources of radiation caused reduced yields, although this effect was comparatively less in plants treated with UV-A radiation.
Literature cited
Caldwell MM, Flint SD, Searles PS (1994) Spectral balance and UV-B sensitivity of soybean: A field experiment. Plant Cell Environ17: 261–276
Kulandaivelu G, Maragatham S, Nedunchezhian N (1989) On the possible control of ultraviolet-B induced response in growth and photosynthetic activities in higher plants. Physiol Plant76: 398–404
Lingakumar K, Kulandaivelu G (1998) Differential responses of growth and photosynthesis inCymopsis tetragonoloba L. grown under ultraviolet-B and supplemented long-wavelength radiation. Photosynthetica35: 335–343
Middleton EM, Teramura AH (1994) Understanding photosynthesis, pigment and growth responses induced by UV-B and UV-A irradiances. Photochem Photobiol60: 38–45
Müller R, Crutze PJ, Grooß JU, Brühl C, Rüssel IIIJM, Gernandt H, McKenna DS, Truck AF (1997) Severe chemical ozone loss in the Arctic during the winter 1995–96. Nature389: 709–712
Panagopoulos I, Bornmann JF, Björn LO (1990) Effects of ultraviolet radiation and visible light on growth, fluorescence induction, ultra weak luminescence and peroxidase activity in sugar beet plants. J Photochem Photobiol B8: 73–87
Sisson WB, Caldwell MM (1977) Atmospheric ozone depletion: Reduction of photosynthesis and growth of a sensitive higher plant exposed to enhanced UV-B radiation. J Exp Bot28: 691–705
Teramura AH, Biggs RH, Kossuth S (1980) Effects of ultraviolet-B irradiance on soybean. II. Interaction between ultraviolet-B and photosynthetically active radiation on net photosynthesis, dark respiration and transpiration. Plant Physiol65: 483–488
Tevini M (2000) Ecological consequences of enhanced UV-B research: A short review, 25 years after the discovery of the ozone hole,In R Bogaert, G Deckmyn, I Nijs, eds, Topics in Ecology: Structure and Function in Plants and Ecosystems, University of Antwerp, UIA, Wilrijk, 235–242
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jayakumar, M., Amudha, P. & Kulandaivelu, G. Changes in growth and yield ofPhaseolus mungo L.induced by UV-A and UV-B enhanced radiation. J. Plant Biol. 46, 59–61 (2003). https://doi.org/10.1007/BF03030303
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF03030303