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Germination and Seedlings Growth of Jali-bet (calamus Tenuis Roxb.)

Neaz Ahmad Siddiqi
Divisional Officer
Bangladesh Forest Research Institute, Sholoshahar, Chittagong

Rowshon Ara
Junior Research Officer
Bangladesh Forest Research Institute, Sholoshahar, Chittagong

Syeeda Rayhana Merry
Field Investigator
Bangladesh Forest Research Institute, Sholoshahar, Chittagong

Abstract/ Executive Summary:

The paper presents the seed germination and seedling growth of Jali-bet (Calamus tenuis Roxb.) based on studies at Bangladesh Forest Research Institute, Chittagong. Germination percentages were 70 for whole fruit, 10 for seed with pulp and 86.66 for clean seeds. Survival was 95.6% in the field when one year old seedlings raised in polybags were planted. In 18 months after planting the seedlings attained a height of 109.78 cm with 3.34 numbers of culms per plant. Clean seeds for nursery raising and one year old seedlings for out planting were found suitable for successful plantations.

Keywords: Calamus tenuis, Germination, Jail-bet, Seedling growth.

Location: Minor Forest Products Division Nursery, BFRI, Chittagong

Start Date: 31-05-1993

End Date: 30-11-1995

Program Area: Conservation and Biodiversity

Commodity: Cane

Objectives:

a) To develop nursery and plantation raising techniques of Calamus tenuis (Jail bet).

Methodology:

We used locally collected ripen fruits during June to test the germination and the trial consisted of the following three treatments: (i) Whole fruit (seed + sarcotesta + scale) (ii) Seed with pulp (seed + sarcotesta without scale) (iii) Clean seed (seed without sarcotesta and scale) For obtaining clean seeds, the scale and the pulp were removed by hand. Weight of fruits/seeds was also measured. One kg contained 500-550 fruits and 4,500-5,000 clean seeds. These fruits/seeds were sown in the germination trays filled with sandy soil and cow dung at a proportion of 3:1. The experiment was laid out in Complete Randomized Design (CRD) with three replication 20 seeds were sown. Thus a total of 180 seeds were used for the germination trial. The trays were kept in nursery shade. Regular watering was made. Data on germination were collected at five days interval till the completion of germination. For studying seedling growth in the nursery, observations were made for two years following germination. For this purpose, clean seeds were sown in nursery beds and afterwards transplanted to polybags (10 cm x 15 cm). The polybags were placed in direct sun light when the seedlings were about two months old. Seedling growth in the field was also observed. In the beginning of monsoon (June), 1000 seedlings raised in polybags were out planted at 3 m x 3 m spacing at the foot hills within BFRI campus, Chittagong. The slope of the planting site was moderate. It was moderately well-drained and partially shaded. The soil was sandy-clay-loam and acidic, pH varying between 5.8 and 6.0. Moisture stress was less than 90 days. Nutrient status was poor to moderately fertile and the organic matter was 1.0 to 1.2%. Weeding, fertilizing or watering was not made after planting. All the seedlings received homogenous treatments. Data on the height of tallest culms and number of culms per plant were recorded at six months and 18 months after planting. Fifty planted seedlings at five randomly selected locations (temporary sample plots) were measured. Seedling survival at various plots was also recorded.

Source of Information: Bangladesh Journal of Forest Science Vol. 25(1 & 2): 15-20, 1996

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Clean seeds for nursery raising and one year old seedlings for out planting were found suitable for successful plantation.

Knowledge Management: Journal