Publication: Growth, water status and nutrient accumulation of seedlings of Cassia fistula L. in response to soil salinity
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Date
2011
Authors
Hardikar, Seema Abhay ; Pandey, Amar Nath
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Publisher
Murcia : Universidad de Murcia, Servicio de Publicaciones
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Greenhouse experiments were conducted to assess the effect of
soil salinity on emergence, growth, water status, proline content
and mineral accumulation of seedlings of Cassia fistula L.
(Fabaceae). NaCl was added to the soil and salinity was maintained
at 0.2, 2.1, 3.9, 6.2, 8.1, 10.0 and 11.9 dSm-1. Salinity
caused reduction in water content and water potential of tissues
that resulted in internal water deficit to plants. Consequently, seedling
growth significantly decreased as salinity increased. Proline
content in tissues increased as salinity increased. There were no
effective mechanisms to control net uptake of Na+ and subsequently
its transport to shoot tissues. Na content significantly increased
in tissues as salinity increased. N, K and Ca content in tissues
significantly decreased as salinity increased. Changes in tissues
and whole-plant accumulation pattern of other nutrients, as
well as possible mechanisms for avoidance of Na toxicity in this
species in response to salinity, are discussed.
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