ORIGINAL RESEARCH
Effect of UV Radiation and Elevated CO2
on Physiological Attributes of Canola
(Brassica napus L.) Grown under Water
Deficit Stress
Hamid Reza Tohidi-Moghadam1, Farshad Ghooshchi1, Farshid Jamshidpour1, Hossein Zahedi2
1Department of Agronomy, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
2Department of Agronomy and Plant Breeding, Eslamshahr Branch,
Islamic Azad University, Eslamshahr, Iran
2Department of Agronomy and Plant Breeding, Eslamshahr Branch,
Islamic Azad University, Eslamshahr, Iran
Pol. J. Environ. Stud. 2012;21(5):1417-1427
KEYWORDS
ABSTRACT
An experiment was conducted to study the effects of solar UV radiation, UV-B, UV-C radiation, and elevating
CO2 on some physiological attributes of two canola cultivars (Brassica napus L.) under complete irrigation
or limited irrigation in two continuous years. Generally, elevated CO2 increased leaf-soluble carbohydrates,
reducing sugars, glucosinolate, and Fv/Fm ratio while carotenoids and soluble protein were decreased
due to elevated CO2. In addition, UV radiation decreased leaf-soluble carbohydrates, reducing sugars, chlorophyll,
proline, and Fv/Fm ratio and increased UV absorbing pigments, soluble proteins, and glucosinolate.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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