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Plant Biodiversity in the Homesteads of Saline Area of Southeastern Bangladesh

M S Uddin
On-Farm Research Division, BARI, Noakhali

M J Rahman
On-Farm Research Division, BARI, Noakhali

M A Mannan
On-Farm Research Division, BARI, Noakhali

S A Begum
On-Farm Research Division, BARI, Noakhali

A F M F Rahman
On-Farm Research Division, BARI, Noakhali

M F Haq
On-Farm Research Division, BARI, Noakhali

Abstract/ Executive Summary:

Plant diversity in the homesteads of saline of southeastern Bangladesh was studied during 2000-2001. Sixty-two useful plant species were identified during the study period. Among them 30.9% fruits, 29.09% timber 34.54% vegetables and 5.45% were spices species. Number of vegetables species were found highest (19 spp) followed by the fruit (17 spp), timber (16 spp) and spices (3 spp.) Only 17 fruit, 13 timber, vegetable 17 and 2 spices species were found at all region. Coconut, country bean, Karai and chilli were found most prevalent in the study area. Inter species diversity was highest (0.879) in the vegetable species. Coconut was found 98.63% in homestead followed by mango (96.72%), banana (91.6%) and betel nut (93.44%).

Keywords: Biodiversity, Homesteads, Saline area

Location: Farming Systems Research and Development site Noakhali

Start Date: 00-00-2000

End Date: 00-00-2001

Program Area: Conservation and Biodiversity

Non-commodity: Plant

Objectives:

To study the diversity of plants species in homesteads and its possible use in crop improvement.

Methodology:

The locations of the study were Farming Systems Research and Development (FSRD) site Noakhali, Multilocation Testing (ML T) site Laxmipur and ML T site Feni of greater Noakhali district. Thirty selected homestead of each location were surveyed following two methods namely, formal survey and informal survey and focused group discussions. Data for plant biodiversity of the homesteads were collected using questionnaire. Each homestead was visited twice, in winter and in summer. Information was recorded through interviews of family members like head of the family, housewife and others. Data were collected mainly on name and number of the plant species and name and number of major morphotypes per species. Population was not recorded in case of herbaceous plants and crops like banana, pineapple, bamboo etc. weeds, and medicinal and ornamental plants were excluded from the survey. Plant biodiversity was described under the following heads, species richness, inter species diversity, relative prevalence of species and inter species diversity. Species richness measures the number of species within an area. Homestead plants of the three locations were grouped into four categories namely fruits, timber, vegetables and spices. Proportions of different plant groups were also calculated. Percent of homesteads containing a particular species is one of the indicators of the relative prevalence of that particular species in that area. Percent of homesteads receiving the plant species were calculated for all the species at all the three regions. Relative prevalence of species was calculated by using the following formula:

PR = Population of the species per homestead x % homesteads with the species. These relative prevalence values were used to rank the species in different regions according. The mean dominance rank was determined by pooling the entire set of data of all the three regions.

Source of Information: Proceedings of a national workshop on Development of Agroforestry Research in Bangladesh held september 16-17 2001, OFRD, BARI, Gazipur, Bangladesh.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Based on the present study it may be concluded that wide range of plant biodiversity existed in the homestead of the greater Noakhali. Among the plant species, inter species diversity of vegetables species was the highest followed by fruit in the homesteads. Coconut in fruits group and Country bean in vegetable was most prevalent species in the homestead. Therefore, intensive research should be undertaken to improve the most prevalent vegetables, spices, fruits and timber species.

Knowledge Management: Report/Proceedings