Effect of low doses of UV-A and UV-B radiation on photosynthetic activities inPhaseolus mungo L

Autor: Muthukrishnan Jayakumar, Govindaswamy Kulandaivelu, Paulraj Amudha
Rok vydání: 2004
Předmět:
Zdroj: Journal of Plant Biology. 47:105-110
ISSN: 1867-0725
1226-9239
DOI: 10.1007/bf03030639
Popis: The effect of low doses of UV-A (320–400 nm) and UV-B (280–320 nm) radiation on photosynthetic activities inPhaseolus mungo L. was investigated under field condition. Supplementation of UV-A enhanced the synthesis of chlorophyll and carotenoids than the UV-B supplemented plants. Significant increase was seen in the concentration of UV-B absorbing compounds of UV-B treated plants. Increase of PS 2 activity in UV-A treated plants was seen. Changes in photosynthetic activity were measured in terms of PS 2 mediated O2 evolution and Chl a fluorescence.
Databáze: OpenAIRE