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

Root Cutting Trials of Three Forest Tree Species Under Different Propagating Conditions

A. K. M. O. Ghani
Seed Orchard Division, Bangladesh Forest Research Institute, P.O. Box 273, Chittagong-4000,Bangladesh.

A. G. Sarker
Bangladesh Forest Research Institute(BFRI), P. O. Box 273, Chittagong-4000,Bangladesh.

M. A. l laque
Bangladesh Forest Research Institute(BFRI), P. O. Box 273, Chittagong-4000, Bangladesh.

Abstract/ Executive Summary:

Vegetative propagation of silkoroi , lohakath and Sal from root cuttings was tried. The results on the propagating environment with silkoroi root cuttings showed that a mixture of sawdust-sand medium in open bed was found more suitable than the sand medium in open bed and gravel medium in the mist bed. The age of the stock plant from which lohakath root cuttings were collected appears to have an important influence on their success rate and sucker production. Rooted cuttings taken from the three years old transplants regenerated more successfully than the cuttings taken from the mature trees. Sucker production is higher in longer and thicker cuttings, but when a thin (4-5 cm) and longer (10 or 15 cm) cuttings or thick (5.1-10 mm or 10.1-15 mm) and small (5 cm) cuttings were used poor regenerative capacity was observed. All successful cuttings of silkoroi and lohakath produced both roots and shoots. Regeneration of Sal from root cuttings was not successful.

Keywords: Sal, Root cutting, Forest, Silkoroti, Lohakath.

Location: Bangladesh Forest Research Institute(BFRI) nursery, Chittagong.

Start Date: 01-02-1989

End Date: 30-06-1989

Program Area:

Commodity:

Objectives:

To investigate the propagation success of the silkoroi , lohakath and Sal three species from root cuttings.

Methodology:

Intact root systems from trees were obtained by careful digging and lifting without causing any damage to the major roots. When collecting roots from older trees, major roots were located near the base of the tree and excavation allowed the collection of several such roots without inflicting any damage on them. The intact root system/roots were gently washed free of soils. After cleaning they were cut into appropriate sizes as stated under species for the experiment. Any injured parts of the roots were discarded, and proximal and distal ends of the cuttings were marked during preparation. Root cuttings were kept moist during transportation and before insertion by wrapping them in moist blotting paper and gunny bags. Root cuttings of Sal and silkoroi were collected from mature trees growing at Barshijura Reserve Forest, Moulavibazar and Ichamati Reserve Forest, Chittagong respectively. Root cuttings from six years old and mature trees of lohakath were also collected from Barshijura Reserve Forest, Moulavibazar and three years old transplants were collected from Kaptai, Chittagong Hill Tracts. All the experiments with root cuttings were carried out at Bangladesh Forest Research Institute nursery, Chittagong. Excised root cuttings were inserted either in a specially prepared beds with sawdust and sand (1:1 ratio) or in 15 cm x 10 em poly bags filled with sand and buried in the sawdust-sand bed or in the gravel medium bed having misting facilities. The cutting placed in the sawdust-sand beds were watered after insertion and twice in a week from then on words.

Source of Information: Bangladesh Journal of forest science, vol. 22,(page no: 44-51) Nos. 1 & 2, Jan-Jul 1993, BFRI, Chittagong.

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results on the propagating environment with silkoroi root cuttings showed that a mixture of sawdust-sand medium in open bed was found more suitable than the sand medium in open bed and gravel medium in the mist bed. The age of the stock plant from which lohakath root cuttings were collected appears to have an important influence on their success rate and sucker production. Rooted cuttings taken from the three years old transplants regenerated more successfully than the cuttings taken from the mature trees. Sucker production is higher in longer and thicker cuttings, but when a thin (4-5 cm) and longer (10 or 15 cm) cuttings or thick (5.1-10 mm or 10.1-15 mm) and small (5 cm) cuttings were used poor regenerative capacity was observed. All successful cuttings of silkoroi and lohakath produced both roots and shoots. Regeneration of Sal from root cuttings was not successful.

Knowledge Management: Journal