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Title: Antioxidative responses of mandarin plants to water stress
Other Titles: NBU Journal of Plant Sciences, Vol.7, No.1 (March 2013) p 21-28
Authors: Allay, S.
Lama, R.
Chakraborty, U.
Chakraborty, B.N.
Keywords: Mandarin
Issue Date: Mar-2013
Publisher: University of North Bengal
Abstract: Citrus reticulata grows in warm climatic conditions. Stresses such as water logging, drought, soil acidity, unbalanced nutrition and pathogenic infestation lead to root injury resulting in citrus tree decline and therefore huge economic losses. In order to determine the effect of flooding and drought on mandarin plants, mandarin plants were subjected to water logging condition in the field and in pots for drought condition. Biochemical and morphological changes induced by water logging and drought conditions were determined. The plants showed slight wilting and leaf dropping by the third day of flooding whereas in drought the leaves curled up, became crisp and later dried out. Marked changes in antioxidative enzymes such as peroxidase, catalase and ascorbate peroxidase was observed during stress in comparison to control plants. Antioxidative activity was seen to be more in the leaves than in the roots. Among the antioxidants carotenoid content showed a significant decrease during the flood stress but increased in drought stress. An increase in ascorbate content was observed during stress in comparison to the control. From this study, we can conclude that water stress causes adjustment of antioxidant balance in mandarin plants.
ISSN: 0974-6927
Appears in Collections:NBU Journal of Plant Sciences, Vol.7, No.1 (March 2013)

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