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

Germination and Growth of Teli Garjan (dipterocarpus Turbinatus Gaertn.) and Chapalish (artocarpus Chama Buch. –ham.) Seedlings in Three Different Growing Media at Nursery

Nasrat Begum
Silviculture Research Division, Bangladesh Forest Research Institute P. O. Box 273, Chattogram – 4000, Bangladesh

Laila Abeda Aktar
Silviculture Research Division, Bangladesh Forest Research Institute P. O. Box 273, Chattogram – 4000, Bangladesh

Golam Mustafa Chowdhury
Silviculture Research Division, Bangladesh Forest Research Institute P. O. Box 273, Chattogram – 4000, Bangladesh

Abstract/ Executive Summary:

The study was conducted at Bangladesh Forest Research Institute, Chattogram to assess the effect of different growing media on germination and growth of Dipterocarpus turbinatus and Artocarpus chama seedlings in the nursery. The media used in the experiment were T1: Soil and Cow dung (3:1), T2 : Cocomoss/ processed coir dust and T3: Processed saw dust. The experiment was conducted by using Completely Randomized Design (CRD) with five replications of each three media. Germination percentage, survival percentage and growth performance of both species were recorded and analyzed. The result showed that the highest germination percentage (78%) of Dipterocarpus turbinatus in T3 and highest survival % in T1 while T2 had shown the highest rate of height (28.5cm), root collar diameter (3.8 mm), leaf number (10) and root length (30.2cm) of seedlings of D. turbinatus. On the other hand, highest rate of germination percentage (82%), survival percentage (78%), height (32.5cm), root collar diameter (4.52 mm), leaf number (9.0) and root length (29.7cm) for seedlings of A. chama also found in T2 media than two others media T1 and T3. Both species showed the highest growth performance in T2. The findings also explored T2 as a good quality co-supplement and substitute of T1 media for raising the seedlings of selected species in the nursery.

Keywords: Dipterocarpus turbinatus, Artocarpus chama, Cocomoss, Coir dust, Saw dust, Seedlings growth.

Location: In the nursery of Silviculture Research Division, BFRI

Start Date: 00-06-2015

End Date:

Program Area: Seed Technology

Commodity: Seed germination, Gorjon

Objectives:

To develop quality planting materials in a stipulated time, an attempt was taken to observe the production of seedlings of important two forest tree species D. turbinatus and A. chama using coir and sawdust as alternative of soil media in the nursery. Present investigation was made to find the effect of soil, coir dust and saw dust media on seed germination, survival and growth of D. turbinatus and A. chama seedlings in the nursery.

Methodology:

The experiment was designed with three different seedling production media in the nursery of Silviculture Research Division, BFRI in June 2015. Raw Materials of potting media were soil, cow dung, coir dust and saw dust (mixture of gamar, rain tree, mahagany and acacia spp.). Three treatments T1 (soil and cow dung; 3:1) T2 (cocomoss, processed coir dust) and T3 (processed saw dust.) were used for raising seedlings in polybags.

Soil media preparation Soil was collected from the top soil of forest floor. The soil and cow dung were heaped separately in the nursery during the dry period (November – December 2014). Then the soil was allowed to decompose for 2 or 3 months under shade to improve aeration, reduce instances of damping off diseases to seedlings, reduce competition of nutrients from weeds, and increase water retention capacity. Before filling polybag soil and cow dung mixtures were crushed and sieved using 2 mm mesh wire.

Processing of coir dust and saw dust Coir dust was collected from coir foam industry and saw dust from saw mill. Coir and saw dusts were sieved with the wire mesh containing ½ cm size pores. Then the dusts were spread on brick raised bed with the alternate layers of chemical fertilizer specially urea, building 2 meter long, 1 meter wide and 16 cm. high linear pile. Total 1.5kg urea fertilizer was spread on each layer for decompose (Begum et al. 2018). Then the pile moistened with water and the whole pile was covered with asbestos providing air passing facility. Black polythene sheet may also be used. The pile was turned at intervals of 2 to 3 weeks and watered when needed. Within 3 months it was found to change in dark brown/blackish color. Finally, decomposed dusts was dried in the sun light and stored in plastic bag for raising seedlings in the nursery.

Seedling raising Fresh and uniform seeds of D. turbinatus were collected in June, 2015 and mature ruptured fruits of A. chama in July, 2015 from the selected mother trees. Both seeds were sown in polybags of size 12cm x 17 cm within 24 hours of collection. Polybags were arranged on permanent nursery bed in line. For each treatment 200 seeds were used. The trial was set up in Completely Randomized Design (CRD) with five replications for each treatment. Each replication contains 40 polybags with one seed. Seeds of D. turbinatus germinated within 7days and seeds of A. chama germinated 8-10 days after sowing in three media. Data were recorded on germination daily up to the completion of the germination. Watering was done regularly and weeding done when needed. Partial shade used till the completion of germination.

Survival rate (%) = Number of survived seedling / Number of germinated seeds x100

Source of Information: Bangladesh Journal of Forest Science Vol. 36 (1), 62-72, 2020

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Growth characteristics of D. turbinatus and A. chama differed according to the growth media in the study. Germination percentage, survival percentage and different morphological features (height and root collar diameter, leaf number and root length) in cocomoss, processed coir dust (T2) media showed the highest result as compared to the soil and cow dung; 3:1 (T1) and processed saw dust (T3) media. Depending on the quality, T2 media may be consider as a quality co-supplement as well as good substitute of soil media for raising seedlings of D. turbinatus and A. chama in the nursery. But T1 and T3 media has showed the lowest growth performance of both species because saw dust alone did not favor seedling growth. Based on the above observation and other reports saw dust media needs mineral nutrients for plant growth because physical properties of growing medium are important factor for growth, establishment and survival of the seedling. Therefore, further investigation is needed to improve the saw dust and cow dung or other compost media for the production of quality seedlings of forest tree species.

Knowledge Management: Journal