Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Seed Germination and Seedling Growth Performance at Nursery Stage of Three Multipurpose Tree Species in Bangladesh

Md. Abdul Matina*
Forestry and Wood Technology Discipline, Khulna University, Khulna 9208, Bangladesh

Md. Harun-ur-Rashid
Field Investigator, Forest Research Institute, Post Box 273, Chittagong, Bangladesh

Abstract/ Executive Summary:

External morphology of fruits and seeds, seed germination and seedling growth performances of rain tree (Albizia saman (Jacq.) Merr, ipil ipil (Leucaena leucocephala (Lam.) deWit.) and mandar (Erythrina indica Linn.), were studied in a nursery. The length, breath and number of seed per fruit were found the highest in ipil ipil and the lowest in mandar. The length, breath, thickness and dry weight per seed were the highest in rain tree. Germination percentage was found the highest both rain tree and mandar in polybags and for ipil ipil in seed tray condition. Seedling growth performances showed good relation with seasonal variations. Height and diameter growth showed sharp rise during wet season and continue to rise up to semi-dry period. During dry period, there was very less growth in height and diameter. Leaf production also showed the same trend with seasonal variations.

Keywords: Germination; Growth; Multipurpose tree; Nursery stage; Seedling

Location: In Bangladesh

Start Date:

End Date:

Program Area: Seed Technology

Commodity: Tree

Objectives:

In this study, three important multipurpose tree species were selected to observe their seed germination behaviours in three different germinating conditions and seedling growth performances in different seasons of the year.

Methodology:

Seeds of ipil ipil were collected from Bangladesh Forest Research Institute campus, Chittagong and that of rain tree and mandar from Chittagong forest areas during February - March in Bangladesh. The matured ripe fruits (pods) were dried for a week in the sun after collection directly from the trees. Measurements of the fruits and seeds were taken in unopened condition and before putting them into the germination test respectively. Germination was made in three conditions: plastic seed-tray (24.5cm dia.), transparent polybag (10cmx15cm) and in open nursery seedbed. In all the cases, the media was soil mixed with cow-dung in 3:1 ratio. The air temperature and relative humidity were from 28-35°C and 52-69% respectively during the experiment. Watering was done to the seedlings at regular interval other than wet season.

In seed-tray and seedbed, 100 seeds were directly sown without any pretreatment having 3 replications and in polybag condition, 100 seeds were given in 100 polybags having 3 replications. The number of seeds germinated was recorded everyday in each condition by counting the number of seedlings germinated. The germinated seedlings from the seed trays and seedbed were transplanted into the transparent polybags (10cmx15cm) at the age of 2 weeks. To study their growth performances in each month, the poly bag-raised seedlings were used and the randomised block design was followed with 4 replications (10 seedlings in each replication) for each species.

Source of Information: Khulna University Studies, 2(1): 141-148

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Among the 3 multipurpose tree species, mandar showed the best performances in growth (height, diameter and leaf production). In case of seed germination, ipil ipil showed the best performance in seed tray condition but rain tree and mandar performed better in polybag condition. Seasonal variations, in respect of environmental/climatic factors showed good relation with the growth and development of all the seedlings of the 3 species. Increase of leaf surface might promote more carbohydrate production but did not show more height and diameter growth in all the species. Moreover, increased leaf surface showed less diameter growth to ipil ipil and rain tree. Therefore, growth in these types of fast growing species is not only controlled by environmental factors but also by genetic factors.

Knowledge Management: Journal