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Salt Tolerances of Some Mainland Tree Species Select as Through Nursery Screening

Md. Abdul Quddus Miah
Plantation Traial Unit Division, BFRI, Rupatali, Barisal - 8200, Bangladesh

Abstract/ Executive Summary:

A study of salt tolerance was carried out on germination, survival and height growth performance of important mesophytic species such as Acacia auriculiformis, Acacia hybrid, Artocarpus heterophyllus, Albizia procera, Albizia lebbeck, Acacia nilotica, Achras sapota, Casuarina equisetifolaia, Emblica officinalis, Leucaena leucocephala, Samania saman, Swetenia macrophylla, Terminalia arjuna, Tamarindus indica, Terminalia bellirica and Thespesia populnea in nursery stage using fresh water and salt (NaCl) solutions of 10, 15 and 20 ppm. Effect of salt on germination, survival performance and height growth performance were examined in this condition. Based on the observation, salt tolerance of these species has been determined Acacia auriculiformis, Acacia hybrid, Achras sapota, Casuarina equisetifolia, Leucaena leucocephala and Tamarindus indica has showed the best capacity to perform in different salinity conditions. Acacia nilotica, Emblica officinalis, Thespesia populnea has performed better. Albizia procera, Samania saman and Terminalia bellirica, germination and height performance showed good but when salinity increases survivability were decreases.

Keywords: Salt tolerance, Mesophytic species, Growth performance, Coastal belt

Location: Plantation Traial Unit Division, BFRI, Rupatali, Barisal

Start Date: 00-00-2006

End Date: 00-00-2007

Program Area: Variety and Species

Commodity: Tree

Objectives:

The study was undertaken to determine the effect of salt (NaCl) on the germination, survivability and growth performance in nursery stage of 16 major species with the intention of facilitating the on-going initiative of finding suitable species for plantation in the salt affected areas.

Methodology:

The species Acacia auriculiformis, Acacia hybrid, Artocarpus heterophyllus, Albizia procera, Albizia lebbeck, Acacia nilotica, Achras sapota, Casuarina equisetifolia, Emblica officinalis, Leucaena leucocephala, Samania saman, Swetenia macrophylla, Terminalia arjuna, Tamarindus indica, Terminalia bellirica and Thespesia populnea these 16 species have been chosen for study due to their multipurpose value, wide use in plantation, homestead plantation and proven salt tolerance at different growth stages in various environment. The determine salt tolerance of these species the effect of different concentration of salt on germination, survivability and height performance have been tested in nursery stages up to 9 month. In presence of salt during the germination period make the seeds susceptible to altered germination capacity and if they can tolerate salinity at the germination stage it is possible that will be able to survive later on. The study was conducted at Plantation Trial Unit Division Head Quarter nursery of Barisal district of Bangladesh. The experiment was conducted during the period of 2006-2007. A total 16 mesophytic species were tried. Sixteen nursery beds were prepared with brick soling and brick wall. Each bed was divided in four plots. A total 480 number seedlings were tried each species and 2 number seeds were sown in each 4’’x 6’’ poly bag. Before seed sowing Poly bags were filling with 3:1 ratio loamy soil and cow dung. Accept Casuarina equisetifolia species were raised in tray. The dosages of salinity with NaCl solution in water like 10, 15 and 20 ppm and control dose only water and checked using a salinity refract meter. In the time of seed sowing artificial salinization were apply and continue to after 10 days and rest of days continuous watering with fresh water. Data were collected from experimental plots after 5 days only germination time and after one month for survival and height performance were recorded up to nine month.

Source of Information: Pakistan Journal of Biological Sciences, 16: 945-949; ISSN 1028-8880

Article Link (Online Journal): DOI: 10.3923/pjbs.2013.945.949; URL: http://scialert.net/abstract/?doi=pjbs.2013.945.949

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The present study recommended that Acacia auriculiformis, Acacia hybrid, Achras sapota, Casuarina equisetifolia, Leucaena leucocephala and Tamarindus indica species are considered to planting in salt affected areas and also Albizia procera, Samania saman, Terminalia bellirica, Acacia nilotica and Thespesia populnea also salt tolerant species and planting in coastal areas and Terminalia aurjuna, Swetenia macrophylla, Albizia lebbeck species are planting in less saline zone.

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