Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques

Tsan, Fui Ying (2000) Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques. PhD thesis, Universiti Pertanian Malaysia.

[img] PDF
2203Kb

Abstract

Most dipterocarp species are erratic seed bearers and produce recalcitrant seeds. This study was designed to explore the possibility of storing their seeds as slow growing seedlings for the continuous supply of planting materials for various planting programmes. Shorea ovalis seedlings showed suspended growth while Shorea leprosula could be stored as slow growing seedlings at 150 Ilmollm2/s PPFD for twelve months. Storage at a density of 700 seedlings/m2 on the forest floor under this low radiation condition however, resulted in mortality rate of above 20% due to herbivory of cotyledons, broken branches from the trees above, damping off and intraspecific competition. Hopea odorata were free from damping off when maintained at a slow growth phase for the same length of period on the forest floor at densities of 300, 500 and 700 seedlings/m2. The other factors as mentioned, however, resulted m mortality rate of above 20% also in these seedlings.

Item Type:Thesis (PhD)
Subject:Seedlings - Dipterocarpaceae - Growth
Chairman Supervisor:Jamaluddin Basharuddin, PhD
Call Number:FH 2000 7
Faculty or Institute:Faculty of Forestry
ID Code:10022
Deposited By: Mohd Nezeri Mohamad
Deposited On:01 Mar 2011 08:41
Last Modified:01 Mar 2011 08:42

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 01 Mar 2011 08:41.

View statistics for "Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques"


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.