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Salt Tolerance of Some Mainland Tree Species Select as Through Nursery Screening.

Md. Abdul Quddus Miah
Field Investigator
Plantation Trial Unit Division Bangladesh Forest Research Institute,Rupatoli, Barisal

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 heterphyllus, Albizia procera, Albizia lebbeck, Acacia nilotica, Achras sapota, Casuarina equisetifolia, Emblica officinalis, Leucanea leucocephala, Samania saman, Swetenia macrophylla, Terminalia aurjuna, 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 equsetifolia, 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 survival were decreases.

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

Location: Plantaion Trial Unit Division, Rupatali Barisal.

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Tree

Objectives:

To find suitable species for raising plantation.

Methodology:

The species Acacia auriculiformis, Acacia hybrid, Artocarpus heterophyllus, Albizia procera, Albizia lebbeck, Acacia nilotica, Achras sapota, Casuarina equisetifolia, Emblica officinalis, Leucanea leucocephala, Samania saman, Swetenia macrophylla, Terminalia aurjuna, 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, survival and growth hieght 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 ( Arya et.al, 1997).A total of 16 mesophytic species were tried. Sixteen nursery bed were prepared with brick soling and brick wall. each bed was divided in four plots. A total of 480 number seedlings were tried each species and 2 number seeds were sown in each 4 x 6 polybag. 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 checked using a salinity refract meter.

Source of Information: Pakistan Journal of Biological Science 16 (18): 945-949, 2013

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The present study recommended that Acacia auriculiformis, Acacia hybrid, Achras sapota, Casuarina equsetifolia, Leucaena leucocephala and Tamarindus indica species were considered for 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 were planting in less saline zone.

Knowledge Management: Journal