Questions and Answers (2) View all
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Answer added in Plant Biology8 Light stress on plantApart from this, lot of study is going on like put your plants in laminar air flow and turn on UV lights..... give lights for different times and esti... [more]
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Answer added in Plant Biology4 HelloPlant defense mechanism against soil salinity..... Write down your views....:)
Publications (11) View all
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Article: Implications of calcium nutrition on the response of Caesalpinia crista (Fabaceae) to soil salinity
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ABSTRACT: a b s t r a c t Greenhouse experiments were conducted to assess the effects of supplemental calcium in salinised soil on the response of germination and seedling growth of Caesalpinia crista, L. (Fabaceae). NaCl and CaSO 4 Á2H 2 O were added to the soil and 0:0, !:0, 1:0.25, 1:0.50, 1:0.75, 1:1, 1:1.25, and 1:1.50 Na/Ca ratios were maintained. Salinity significantly retarded the seed germination and seedling growth, but the inju-rious effects of NaCl on seed germination were ameliorated and seedling growth was restored with cal-cium supply at the critical level (1:0.50 Na/Ca ratio) to salinised soil. Calcium supply above the critical level further retarded the seed germination and seedling growth due to the increased soil salinity. Salt stress reduced N, P, K and Ca content in plant tissues, but these nutrients were restored by addition of calcium at the critical level to saline soil. The opposite was true for Na + . The results are discussed in terms of the beneficial effects of calcium supply on the seedling growth of C. crista grown under saline conditions.Acta Ecologica Sinica 11/2010; -
Article: Growth, water status and nutrient accumulation of seedlings of Jatropha curcas L. (Euphorbiaceae) in response to soil salinity
Anales de Biología. 01/2010; 32: 59-71, 2010. -
Article: EFFECT OF SALINIZATION OF SOIL ON GROWTH, WATER STATUS AND NUTRIENT ACCUMULATION IN SEEDLINGS OF ACACIA AURICULIFORMIS (FABACEAE)
Journal of Plant Nutrition. 01/2010; 33:914–932, 2010. -
Article: Implications of Calcium Nutrition on the Response of Salvadora oleoides (Salvadoraceae) to Soil Salinity
Arid Land Research and Management. 01/2009; 23:311–326, 2009. -
Article: Effect of salinisation of soil on growth, water status and general nutrient accumulation in seedlings of Delonix regia (Fabaceae)
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ABSTRACT: Greenhouse experiments were conducted to assess the effect of salinisation of soil on emergence, growth, water content, proline content and mineral accumulation of seedlings of Delonix regia (Hook.) Raf. (Fabaceae). Sodium chloride (NaCl) was added to the soil and salinity was maintained at 0.3, 1.9, 3.9, 6.0 and 7.9 dS m-1. A negative relationship between seedling emergence and salt concentration was obtained. Salinity caused reduction in water content and water potential of tissues (leaves, stems, tap roots and lateral roots) that resulted in internal water deficit to plants. Consequently, shoot and root elongation, leaf expansion and dry matter accumulation in leaves, stems, tap roots and lateral root tissues of seedlings significantly decreased in response to increasing concentration of salt. Proline content in tissues was very low. There were no effective mechanisms to control net uptake of Na on root plasma membrane and subsequently its transport to shoot tissues. Potassium content significantly decreased in tissues in response to salinisation of soil. This tree species is a moderate salt-tolerant glycophytic plant. Nitrogen and calcium content in tissues significantly decreased as soil salinity increased. Phosphors content in tissues exhibited a declining trend with increase in soil salinity. Changes in tissues and whole-plant accumulation pattern of other elements tested, as well as possible mechanisms for avoidance of Na toxicity in this tree species in response to salinisation, are discussed.Acta Ecologica Sinica. 01/2009; 29 (2009) 109–115.
