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Response of Cassava canopy to mid-day pseudo sunrise induced by solar eclipse

Latha, R and Murthy, BS (2013) Response of Cassava canopy to mid-day pseudo sunrise induced by solar eclipse. International Journal of Biometeorology, 57 (4). pp. 645-648.

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Variations in CO2 concentration over a cassava canopy were measured during a solar eclipse at Thiruvananthapuram, India. The analysis presented attempts to differentiate between the eclipse effect and the possible effect of thick clouds, taking CO2 as a proxy for photosynthesis. CO2 and water vapor were measured at a rate of 10 Hz, and radiation at 1 Hz, together with other meteorological parameters. A rapid reduction in CO2 observed post-peak eclipse, due apparently to intense photosynthesis, appears similar to what happens at daybreak/post-sunrise. The increase in CO2 (4 ppm) during peak eclipse, with radiation levels falling below the photosynthesis cut-off for cassava, indicates domination of respiration due to the light-limiting conditions.

Item Type: Article
Additional Information: Copyright of this article belongs to Springer.
Uncontrolled Keywords: Solar eclipse;Cassava plants;Photosynthesis;CO2 uptake.
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 18 Jun 2014 06:00
Last Modified: 18 Jun 2014 06:00

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