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Seed Germination Behaviour of Six Medicinal Plants from Bangladesh

ALEYA FERDOUSI
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

MD. OLIUR RAHMAN
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

MD. OLIUR RAHMAN
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

Abstract/ Executive Summary:

This paper focuses on seed germination of six indigenous medicinal plants of Bangladesh, namely Adenanthera pavonina L., Helicteres isora L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. and U. picta (Jacq.) Desv. ex DC. The minimum days taken to germinate seeds in Adenanthera pavonina L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. and U. picta (Jacq.) Desv. ex DC. are 12, 36, 10, 39 and 14, respectively. Seeds were not germinated in Helicteres isora L. indicating that seeds are not suitable for propagation, however, propagation through stem cutting in this species revealed that plants flowers and set fruits in the same year and take only six to seven months. Epigeal type of seed germination was observed in all cases.

Keywords: Medicinal plants, Seed germination, Bangladesh

Location: Botanical Garden of Dhaka University

Start Date:

End Date:

Program Area: Development of Host and Medicinal Plants

Commodity: Plant(s)

Objectives:

To explore seed germination pattern and dormancy of seeds in Adenanthera pavonina L., Helicteres isora L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. ex DC. which might help in bringing the plants under cultivation.

Methodology:

Six medicinally important plants selected for this study are Adenanthera pavonina L., Helicteres isora L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. and U. picta (Jacq.) Desv. ex DC. Plants materials were collected from different areas of the country and planted in the Botanical Garden of Dhaka University for closer observation and critical study. The voucher specimens are deposited in Dhaka University Salar Khan Herbarium (DUSH). Seeds of six species were collected from mature fruits and preserved under laboratory condition. Rahman et al. (2012) was followed for seed germination experiment. For sowing of the seeds earthen pots of 10 inch in diameter filled up with a mixture of soil and compost (2:1). In order to prevent fungal infection and microbial contamination seeds were treated with fungicides prior to sowing. Ten mature seeds for each taxon were sown in earthen pots at different time intervals to record dormancy and viability, suitable time for germination, percentage and type of germination. Propagation through stem cutting was performed in Helicteres isora as seeds were not germinated in this species.

Source of Information: Bangladesh J. Plant Taxon. 21(1): 71-76, 2014 (June)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The minimum days taken to germinate seeds in Adenanthera pavonina L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. and U. picta (Jacq.) Desv. ex DC. were 12, 36, 10, 39 and 14, respectively. Seeds were not germinated in Helicteres isora L. indicating that seeds are not suitable for propagation, however, propagation through stem cutting in this species revealed that plants flowers and set fruits in the same year and take only six to seven months. Epigeal type of seed germination was observed in all cases.

Knowledge Management: Journal