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Effect of Pre-sowing Treatment on the Germination of Golla-bet (daemonorops Jenkensiana) Seeds

Rowshon Ara
Junior Research Officer
Bangladesh Forest Research Institute, Sholoshahar, Chittagong

M. Mohiuddin
Assistant Professor
Institute of Forestry and Environmental Sciences, University of Chittagong

M. H. Rashid
Divisional Officer
Bangladesh Forest Research Institute, Sholoshahar, Chittagong

Abstract/ Executive Summary:

Seed germination of golla-bet (Daemonorops jenkensiana) after pre-sowing treatment was studied. The seeds treated with HCl and H₂SO₄ separately showed 64-68% and 50-68% germination respectively irrespective of different concentration of acid. On removing only scaly epicarp, germination of golla-bet increased to 51% without any acid treatment. The results indicate that acid scarification turn hard seed coat into thin and papery resulting easy infiltration of water to accelerate possible enzyme activities in endosperm.

Keywords: Pre-sowing treatment, Germination, Golla-bet

Location: Bangladesh Forest Research Institute, Chittagong

Start Date: 30-06-1992

End Date: 30-06-1993

Program Area: Conservation and Biodiversity

Commodity: Cane

Objectives:

a) To develop suitable nursery raising technique of Golla-bet.

Methodology:

The ripened fruits of golla-bet collected from the cane arboretum of the Bangladesh Forest Research Institute, Chittagong in July. The fruits were divided into two lots for using in two separate experiments. These were used in all experiments within 15 days of collection. In one experiment, scaly epicarp and fleshy sarcotesta of fruits were removed manually to get the cleaned seeds. The cleaned seeds of one lot were treated with concentrated hydrochloric acid (HCL) and other with concentrated sulphuric acid (H₂SO₄) separately. In each case seeds were immerged in 5, 10 and 20% concentration of acid for a period of 5, 10 and 20 minutes in each. The seeds immerged in tap water were considered as treated with 0% concentration of acid i.e. control. The seeds treated with acid were washed in running tap water repeatedly before sowing to make the seeds free from acid. Three replications of 15 seeds in each treatment (concentration of acid including tap water and period of immergence) were sown in polyethylene bag containing a compost of nursery soil and cow dung in a proportion of 3:1, respectively. In another experiment seeds were sown without acid treatment. In this case, seeds were sown in seed bed of nursery soil and cow dung (3:1, respectively) in four different ways, viz., with both scaly epicarp and fleshy sarcotesta (T₁), only with fleshy sarcotesta (T₂), scaly epicarp and fleshy sarcotesta removed- cleaned seed (T₃) and cleaned seeds immerged in drain water for 48 hour (T₄). There were three replications (seed bed) of 250 seeds in each treatment. For both experiments the data were analyzed statistically.

Source of Information: Bangladesh Journal of Forest Science Vol. 23(1): 51-54, 1994

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Golla-bet can be easily propagated from the seeds. More than 50% seeds germinate whether sown with or without acid treatment. The seeds with only fleshy sarcotesta showed the best germination without acid treatment because of possible acid contents in fleshy sarcotesta.

Knowledge Management: Journal