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A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil

Sago palm is currently one of the major starch resources in Malaysia, as indicated by the M$14 million average annual export value obtained in the past few years. The two main types of sago palms found in Sarawak are the smooth sheathed Metroxylon sagu and spiny sheathed Metroxylon rumphii. Thes...

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Main Author: Lim, Kelvin Eng Tian
Format: Thesis
Language:English
English
Published: 1991
Online Access:http://psasir.upm.edu.my/id/eprint/8353/1/FSMB_1991_3_A.pdf
http://psasir.upm.edu.my/id/eprint/8353/
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spelling my.upm.eprints.83532012-06-29T07:35:04Z http://psasir.upm.edu.my/id/eprint/8353/ A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil Lim, Kelvin Eng Tian Sago palm is currently one of the major starch resources in Malaysia, as indicated by the M$14 million average annual export value obtained in the past few years. The two main types of sago palms found in Sarawak are the smooth sheathed Metroxylon sagu and spiny sheathed Metroxylon rumphii. These are grown all over Sarawak on different soil types ranging from mineral soil, shallow peat and deep peat. To date, no information is available on the performance of these two varieties grown on these soil types. This study was conducted to determine the effect of soil types on the growth, physical characteristics of the palms, the starch quality, and yield of the resultant starch extracted from these palms. The longitudinal and radial starch distribution of the palm, the different methods of estimating starch yields and the leaf nutrient variation of the sago palm were also evaluated.Results from this study indicated that sago palm performed better on mineral soil than on the marginal peat soil with starch yield ranging from 182 to 260 kg / trunk for Metroxylon sagu in mineral soil compared to 128 to 188 kg / trunk in deep peat. In terms of starch yields against palm maturity, total starch yield was found to increase with palm age up to the 'Angau Muda' (flowering) stage after which the total starch content decreased sharply. The physico-chemical characteristics of the sago starch from both varieties and different stages of maturity did not differ significantly. The longitudinal and radial distribution of the starch in trunk of the palm was uneven. The upper portion of the trunk and the outer segment of the pith had lower starch contents. The starch yield per trunk of sago can be estimated by measuring the trunk length and girth at breast height. Studies showed that estimating of starch yield based on volume basis is easier and more accurate. The study on the variation leaf nutrient content of sago palm recommended frond 9 be sampled for the assessment of the nutrient status of the palm. 1991 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/8353/1/FSMB_1991_3_A.pdf Lim, Kelvin Eng Tian (1991) A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil. Masters thesis, Universiti Pertanian Malaysia. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Sago palm is currently one of the major starch resources in Malaysia, as indicated by the M$14 million average annual export value obtained in the past few years. The two main types of sago palms found in Sarawak are the smooth sheathed Metroxylon sagu and spiny sheathed Metroxylon rumphii. These are grown all over Sarawak on different soil types ranging from mineral soil, shallow peat and deep peat. To date, no information is available on the performance of these two varieties grown on these soil types. This study was conducted to determine the effect of soil types on the growth, physical characteristics of the palms, the starch quality, and yield of the resultant starch extracted from these palms. The longitudinal and radial starch distribution of the palm, the different methods of estimating starch yields and the leaf nutrient variation of the sago palm were also evaluated.Results from this study indicated that sago palm performed better on mineral soil than on the marginal peat soil with starch yield ranging from 182 to 260 kg / trunk for Metroxylon sagu in mineral soil compared to 128 to 188 kg / trunk in deep peat. In terms of starch yields against palm maturity, total starch yield was found to increase with palm age up to the 'Angau Muda' (flowering) stage after which the total starch content decreased sharply. The physico-chemical characteristics of the sago starch from both varieties and different stages of maturity did not differ significantly. The longitudinal and radial distribution of the starch in trunk of the palm was uneven. The upper portion of the trunk and the outer segment of the pith had lower starch contents. The starch yield per trunk of sago can be estimated by measuring the trunk length and girth at breast height. Studies showed that estimating of starch yield based on volume basis is easier and more accurate. The study on the variation leaf nutrient content of sago palm recommended frond 9 be sampled for the assessment of the nutrient status of the palm.
format Thesis
author Lim, Kelvin Eng Tian
spellingShingle Lim, Kelvin Eng Tian
A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil
author_facet Lim, Kelvin Eng Tian
author_sort Lim, Kelvin Eng Tian
title A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil
title_short A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil
title_full A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil
title_fullStr A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil
title_full_unstemmed A Comparative Study on the Performance of Metroxylon Sagu and Metroxylon Rumphil Grown on Gleyed Mineral Soil and Organic Soil
title_sort comparative study on the performance of metroxylon sagu and metroxylon rumphil grown on gleyed mineral soil and organic soil
publishDate 1991
url http://psasir.upm.edu.my/id/eprint/8353/1/FSMB_1991_3_A.pdf
http://psasir.upm.edu.my/id/eprint/8353/
_version_ 1643823991734927360
score 13.211869

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