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Seed Germination in Six Anticancerous Plants of Bangladesh

Nahid Sultana
Department of Botany, Jagannath University, Dhaka-1100, Bangladesh

M Oliur Rahman
Department of Botany, Jagannath University, Dhaka-1100, Bangladesh

Md Abul Hassan
Department of Botany, Jagannath University, Dhaka-1100, Bangladesh

Abstract/ Executive Summary:

Six medicinal plants, namely Boerhavia diffusa L., Calotropis procera (Ait.) R. Br., Jatropha gossypifolia L., Leonurus sibiricus L., Plumbago zeylanica L. and Ricinus communis L. of Bangladesh having anticancerous properties were investigated with a view to knowing their seed germination time, rate and pattern. The minimum days taken for seed germination in B. diffusa, C. procera, J. gossypifolia, L. sibiricus, P. zeylanica and R. communis were 70, 9, 24, 75, 11 and 14, respectively. The maximum time (130 days) required for germination was observed in Leonurus sibiricus. The highest germination rate (100%) was observed in Plumbago zeylanica, while the lowest rate (10%) was found in Ricinus communis. Epigeal type of germination was noted in all the species employed.

Keywords: Medicinal plants, Seed germination, Anticancer, Epigeal, Dormancy

Location: Botanical Garden of Dhaka University

Start Date:

End Date:

Program Area: Development of Host and Medicinal Plants

Commodity: Medicinal Plants

Objectives:

To investigate seed germination behaviour of six commonly available anticancerous plants in Bangladesh including their dormancy, suitable period of germination, and rate and nature of germination, which might help in carrying these plants under cultivation.

Methodology:

Plant materials: Six anticancerous plants investigated in this study are listed with their families, vernacular names, habit, parts used and tested cancer lines. The plants were selected because of their availability throughout the country and used by the local people in different parts of the country. Plant specimens were collected from different areas of Bangladesh and planted in the Botanical Garden of Dhaka University for observation and decisive study. The voucher specimens are deposited in Dhaka University Salar Khan Herbarium (DUSH). Seed collection and sowing: Seeds were collected from mature fruits before noon and stored in natural condition at normal temperature. Earthen tubs (12") were taken and filled with sandy loam soil and compost (2 : 1). Ten seeds of each species were sown to a depth of about 1 cm in the earthen tubs. The tubs were kept in semi-shaded places and watered regularly (Ferdousi et al. 2014). Ten seeds per tub were sown at different time interval of the year to record dormancy, suitable period of germination, percentage of germination and nature of germination.

Source of Information: Asiat. Soc. Bangladesh, Sci. 45(2): 151-159, December 2019

Article Link (Online Journal): DOI: https://doi.org/10.3329/jasbs.v45i2.46589

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The present study revealed that Plumbago zeylanica seeds took 11 days to germinate and the germination rate was very high (80 - 100%), Salinity and light in Calotropis procera and concluded that the highest seed germination (98.7%) was found in dark condition, while no germination occurred in light condition. In this study, seed germination rate varied from 40 - 80% in Calotropis procera and the low rate of germination might be because of semi-shaded condition, immature nature of seeds and sowing period. Seeds of Calotropis procera, Jatropha gossypifolia, Leonurus sibiricus, Plumbago zeylanica and Ricinus communis lost their viability after certain period, and Boerhavia diffusa, Jatropha gossypifolia, Leonurus sibiricus and Ricinus communis exhibited different dormancy periods. Several environmental factors, such as light intensity, temperature, water availability, and soil salinity influenced seed germination phenomena and seedling emergence. In order to break dormancy certain environmental conditions should be taken into consideration, and after breaking dormancy other conditions are also needed to allow seed germination and seedling development.

Knowledge Management: Journal