Response of Conocarpus erectus seedlings to different levels of salinity and sodicity

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Research Paper 01/06/2018
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Response of Conocarpus erectus seedlings to different levels of salinity and sodicity

Amar Iqbal Saqib, Khalil Ahmed, Abdul Rasul Naseem, Ghulam Qadir, Muhammad Qaisar Nawaz, Muhammad Rizwan, Muhammad Anwar Zaka, Muhammad Ilyas
Int. J. Biosci.12( 6), 193-201, June 2018.
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Soil salinity and sodicity problems are common in arid and semiarid regions, like Pakistan where annual rainfall is insufficient to leach salts and excess sodium ion out of the rhizosphere. Reclamation is not always an easy and economical approach for efficient use of salt affected soils. Other option is utilization of salt affected soils through growing of salt tolerant plants. So, a study was conducted to evaluate salinity/sodicity tolerance of Conocarpus Erectus for its cultivation on waste salt affected soils. Different combination of ECe (20 to 40 dS m-1) and SAR (20 to100 mmol L-1)1/2 were tested Data recorded after two years showed that increasing levels of salinity and sodicity had negative impact on all plant growth characteristics i.e. stem diameter, plant height, number of leaves and number of branches/plantbut plant mortality was not observed in any treatment. Maximal percent increase was observed in control having salinity and sodicity level within safe limit. While owning to dual stress of salinity and sodicity minimal percent increase for plant height (44 %), stem diameter (117 %), number of leaves (761.90 %) and number of branches/plant (340 %) was noticed in T16 = EC 32.40 dS m-1& SAR 79.60 (m mol L-1)1/2(mmol L-1)1/2. Most of parameters showed 50% reduction in growth at T11 =ECe27.34 dS m-1&SAR 81.52 (mmol L-1)1/2. Generally negative impact on the growth was more intense at higher sodicity levels as compared to salinity.


Abohassan A, Tewfik SFA,  El Wakeel AO. 2010. Effect of thinning on the above ground biomass of (Conocarpus erectus L.) trees in the western region of Saudi Arabia. Environment and Arid Land Agriculture. Sciences 21, 3-17. 21-1.1

Akram MS, Athar HR, Ashraf M. 2007.Improving growth and yield of sunflower (Helianthus annuus L.) by foliar application of potassium hydroxide (KOH) under salt stress. Pakistan Journal of Botany 39 (3), 451-458.

Al-Humaid AI, Moftah AE. 2007. Effects of hydrophilic polymer on the survival of buttonwood seedlings grown under drought stress. Journal of Plant Nutrition.,30, 53-66.

Ashraf MY, Sarwar G. 2002. Salt tolerance potential in some members of rassicaceae. Physiological studies on water relations and mineral contents. In: Prospects for Saline Agriculture. (Eds.): R. Ahmad and K. A. Malik. Kluwer Academic Publishers, Netherlands, 237- 245.

Asif M, Saqib M, Yousaf B, Adnan M, Yousaf A, Ali A,  Sabir D. 2014. Growth and ionic composition of Buttonwood (Conocarpus erectus L.) in response to soil salinity and water stress. Advances in Life Science and Technology 19, 42-51.

Basim A. Ali A. 2014. Resistance of conocarpus lancifolius eng different levels of salinity and water supply. ARPN Journal of Agricultural and Biological Science 9(6), 211-215.

Cavusoglu K, Kiliç S, Kabar K. 2007. Effects of pretreatments of some growth regulators on the stomata movements of barley seedlings grown under saline (NaCI) conditions. Plant Soil Environment 53, 524-528.

Cavusoglu K, Kiliç S, Kabar K. 2008. Effects of some plant growth regulators on leaf anatomy of radish seedlings grown under saline conditions. Journal of Applied Biology and Biotechnology  2, 47-50.

FAO, 2000.Extent and Causes of Salt-affected Soils in Participating Countries. Land and plant Nutrition Management Service. FAO Soils Bull. No. 77, FAO, Rome, Italy.

Flowers TJ, Colmer TD. 2008. Salinity tolerance in halophytes. New Phytologist179, 945-963.

Ghafoor A, Aziz T, Abdullah M. 1988. Dissolution of gypsum size grades in synthetic saline solutions. Journal of Agricultural Research 26, 289-294.

Hegazy SS, Aref IM, Al-Mefarrej H, El-Juhany LI. 2008.Effect of spacing on the biomass production and allocation in Conocarpus erectus L. trees grown in Riyadh, Saudi Arabia.Saudi Journal of Biological Sciences15, 315-322.

Ibrahim M, Akhtar J, Younis M, Riaz MA, Anwar-ul-Haq M, Tahir M. 2007. Selection of cotton (Gossypium hirsutum L.) genotypes against NaCl stress. Soil and  Environment, 26, 59-63.

Khan GS. 1998. Soil salinity and sodicity status in Pakistan. Soil Surv. Pak. Lahore 12, 59-60.

Khatoon A, Hussain MK,  Sadiq M. 2000. Effect of salinity on some growth parameters of cultivated sunflower under saline conditions. International Journal of Agriculture and Biology 2, 210-213.

Lesica P, Crone EE. 2007. Causes and consequences of prolonged dormancy for an iteroparous geophyte, Silene spaldingii. Journal of Ecology 95, 1360-1369.

Maheshwari DK, Dubey RC, Aeron A, Kumar B, Kumar S, Tewari S, Arora NK. 2012. Integrated approach for disease management and growth enhancement of Sesamum indicum L. utilizing Azotobacter chroococcum TRA2 and chemical fertilizer. World Journal Microbial Biotechnology 28, 3015-3024.

Manchanda G, Garg N. 2008. Salinity and its effects on the functional biology of legumes. Acta Physiologiae Plantarum, 30, 595–618.

Mirbahar MB, SiprawAM. 2000. On-Farm tile drainage with farmers participant, past experience and future strategies. Proceeding National Seminar on Drainage in Pakistan, August 16-18, 2000 held at MUET, Jamshoro,  1–14.

Jalaly M,  Abdolahpour M, Hajizadeh A. 2015. Effect of Saline Water on Morphological Characteristics of Conocarpus plant for Using in Green Space of Warm and Arid Cities. Biological Forum – An International Journal 7(2), 31-34.

Munns R. 2002. Comparative physiology of salt and water stress. Plant Cell Environment 25, 239-250.

Passioura JB, Ball MC,  Knight JH. 1992. Mangroves may salinize the soil and in soil and in so doing limit their transpiration rate. Functional Ecology  6, 476-481.

Qadir M, Oster JD. 2004. Crop and irrigation management strategies for saline sodic soils and waters aimed at environmentally sustainable agriculture. Science of the Total Environment 323, 1-19.

Redha A, Suleman P, Al-Hasan R, Afzal M. 2012. Responses of Conocarpus lancifolius to environmental stress: a case study in the semi-arid land of Kuwait. Phyton81, 181-190.

Saqib M, Akhtar J, Qureshi RH. 2004. Pot study on wheat growth in saline and waterlogged compacted soil II. Root growth and leaf ionic relations. Soil and Tillage Research77, 179-187.

Shirazi MU, Khan MA, Ali M, Mujtaba SM, Mumtaz S, Ali M, Khanzada B, Halo MA, Rafique M, Shah JA, Jafri KA, Depar N. 2006. Growth performance and nutrient contents of some salt tolerant multipurpose tree species growing under saline environment. Pakistan Journal of Botany 38, 1381-1388.

Steel RGD, Torrie JH, Dickey DA. 1997. Principles and Procedures of Statistic: A Biometrical Approach. 3rd edition, pp: 400-428. McGraw Hill book Co. Inc. New York.

Suleiman MK, Bhat NR, Abdal MS, Bellen RR. 2005. Testing newly introduced ornamental plants to the arid climate of Kuwait. Archives of Agronomy and Soil Science 51 469-479.

US Salinity Laboratory Staff.1954. Diagnosis and  Improvement of Saline and Alkali Soils. USDA  Handbook 60, Washington, DC., USA.

Yang CW, Zhang ML, Liu J, Shi DL, Wang DC. 2009. Effects of buffer capacity on growth, photosynthesis, and solute accumulation of a glycophyte (wheat) and a halophyte (Chloris virgata). Photosynthetica 47, 55-60.