Impacts of Ambient Solar UV (280-400 nm) Radiation on Three Tropical Legumes
2005
Amudha, Paulraj (Madurai Kamaraj University, Madurai, India) | Jayakumar, Muthukrishnan (Madurai Kamaraj University, Madurai, India), E-mail: [email protected] | Kulandaivelu, Govindaswamy (Madurai Kamaraj University, Madurai, India)
Tropical regions receive the highest level of global solar ultraviolet (UV) radiation especially UV-B (280-320 nm). The average daily dose of the UV-B radiation in Madurai, South India (10°N) is 10 kJ m-². This is approximately 50% more than the average daily UV-B radiation in many European countries. A field study was conducted using selective filters to remove either the UV-B (less than 320 nm) or UV-B/A (less than 400 nm) of the solar spectrum, and the effects were followed in Cyamopsis tetragonoloba, Vigna mungo, and Vigna radiata to determine their sensitivity to UV.
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