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

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 su...

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Bibliographic Details
Main Author:	Tsan, Fui Ying
Format:	Thesis
Language:	English English
Published:	2000
Subjects:	Seedlings - Dipterocarpaceae - Growth
Online Access:	http://psasir.upm.edu.my/id/eprint/10022/1/FH_2000_7_IR.pdf
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id	my-upm-ir.10022
record_format	uketd_dc
spelling	my-upm-ir.100222023-12-06T03:11:58Z Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques 2000-02 Tsan, Fui Ying 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. Seedlings - Dipterocarpaceae - Growth 2000-02 Thesis http://psasir.upm.edu.my/id/eprint/10022/ http://psasir.upm.edu.my/id/eprint/10022/1/FH_2000_7_IR.pdf text en public doctoral Universiti Putra Malaysia Seedlings - Dipterocarpaceae - Growth Faculty of Forestry Basharuddin, Jamaluddin English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Basharuddin, Jamaluddin
topic	Seedlings - Dipterocarpaceae - Growth
spellingShingle	Seedlings - Dipterocarpaceae - Growth Tsan, Fui Ying Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques
description	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.
format	Thesis
qualification_level	Doctorate
author	Tsan, Fui Ying
author_facet	Tsan, Fui Ying
author_sort	Tsan, Fui Ying
title	Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques
title_short	Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques
title_full	Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques
title_fullStr	Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques
title_full_unstemmed	Storage of Seedlings of Three Recalcitrant Dipterocarp Species by Slow Growth Techniques
title_sort	storage of seedlings of three recalcitrant dipterocarp species by slow growth techniques
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Forestry
publishDate	2000
url	http://psasir.upm.edu.my/id/eprint/10022/1/FH_2000_7_IR.pdf
_version_	1794018857905553408

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

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