Growth, water status and nutrient accumulation of seedlings of Holoptelea integrifolia (Roxb.) Planch in response to soil salinity
2008
Patel, A.D.,Saurashtra Univ., Rajkot (India). Dept. of Biosciences | Pandey, A.N.,Saurashtra Univ., Rajkot (India). Dept. of Biosciences
Greenhouse experiments were conducted to assess the effects of soil salinity on emergence, growth, water status, proline content and mineral accumulation of seedlings of Holoptelea integrifolia. NaCl was added to the soil and salinity was maintained at 0.3, 3.9, 6.0, 7.9, 10.0, 12.1 and 13.9 dS/m. Salinity caused reduction in water potential of tissues, which resulted in internal water deficit to plants. Consequently, seedling growth significantly decreased with increase in soil salinity. Proline content in tissues increased with increase in soil salinity. There were no effective mechanisms to control net uptake of Na transport to shoot tissue. K conc. increased in leaves to avoid Na toxicity. N conc. significantly increased, whereas P, Ca and Mg conc. significantly decreased as salinity increased.
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