Julius Kodoh - Academia.edu (original) (raw)

Books by Julius Kodoh

The species Potoxylon melagangai (SYM.) KOSTERM. is the only species in the genus, similar to the... more The species Potoxylon melagangai (SYM.) KOSTERM. is the
only species in the genus, similar to the closely related Eusideroxylon
zwageri (SYMINGTON); they are grouped together
under the subtribe Eusideroxylineae in the tribe
Cryptocaryeae. In the Malaysian states on Borneo, Potoxylon
and Eusideroxylon are differentiated by the native
names Melagangai and Belian, respectively. Internationally,
both species are collectively known as Borneo ironwood
and classified as heavy hardwood (HHW) due to
their natural durability and resistance to pest attacks in
the terrestrial and marine environments. Melagangai
usually occurs in the main canopy of the forest but is
commonly not the largest tree of the primary tropical
rainforests.

Papers by Julius Kodoh

The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated d... more The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated due to its potential as a source of cheap biodiesel feedstock and short gestation period. However, the drive for Jatropha curcas cultivation has been relatively slow. Past fertilizer experiments on the species focused on plants in the field under different environmental conditions. This study was conducted to gauge the response of potted Jatropha curcas varieties to NPK fertilizer rate under a covered net house during the early establishment phase. The experiments were conducted in an RCBD using two months old seedlings of four varieties and four NPK fertilizer rates in 3 replicates. Local variety had the lowest height increment while India variety had the lowest diameter increment whether with and without fertilizer treatment. With fertilizer treatment, India variety had the best height increment while Indonesia variety had the best diameter increment. ANOVA was significantly different f...

The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated d... more The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated due to its potential as a source of cheap biodiesel feedstock and short gestation period. However, the drive for Jatropha curcas cultivation has been relatively slow. Past fertilizer experiments on the species focused on plants in the field under different environmental conditions. This study was conducted to gauge the response of potted Jatropha curcas varieties to NPK fertilizer rate under a covered net house during the early establishment phase. The experiments were conducted in an RCBD using two months old seedlings of four varieties and four NPK fertilizer rates in 3 replicates. Local variety had the lowest height increment while India variety had the lowest diameter increment whether with and without fertilizer treatment. With fertilizer treatment, India variety had the best height increment while Indonesia variety had the best diameter increment. ANOVA was significantly different f...

Sabah is recognized as the poorest state in Malaysia, whilst having numerous rural communities ca... more Sabah is recognized as the poorest state in Malaysia, whilst having numerous rural communities categorized as a hardcore poor especially in the rural district, Pitas. The Kanibongan project involving rubber smallholders in the Pitas district has been developed by the State Government for the purpose of socio-economic development. The main objectives of this study were to determine the effectiveness of the project implementation in addressing the poverty level in the area involved; and to determine the factors driving the smallholders to participate in the project and the problems faced by these smallholders. This study involved five villages, namely, Kampung Masin, Kampung Kutoyon, Kampung Sulakulong, Kampung Simpang Empat and Kampung Simpang. Data was collected with 100% sampling comprising of 195 respondents by using questionnaires and interviews. Based on the results of this study, the average monthly income of the smallholders showed significant improvement up to 30% since its i...

Prospects and Utilization of Tropical Plantation Trees, 2019

Tropical forest ecosystem provides important timber and non-timber forest products and services e... more Tropical forest ecosystem provides important timber and non-timber forest products and services especially to communities that live within or adjacent to forests. The purpose of this paper is to describe the forest resources available and used by villagers; and the reliance of the community on forest resources for livelihood. Rapid Rural Appraisal (RRA) which consists of structured questionnaire interview and transect walk was used to determine the forest resources used, socio-economic standing, and rank the importance of forest resource. The community of Kg. Wawasan community relied on forest resource on a subsistence basis because of its vicinity to the forest, ease of obtaining forest resources, to supplement their daily needs, and far distance from markets. The community consist of low income earner (<RM1000) with limited opportunity or interest to pursue employment in other sectors. About 25 plant species were harvested from the wild for food medicine, utensil, timber and bu...

Prospects and Utilization of Tropical Plantation Trees, 2019

Sabah Forestry Department, 2018

IOP conference series, Feb 1, 2023

The growing urbanization has greatly reduced biodiversity. Home gardening is a crucial approach f... more The growing urbanization has greatly reduced biodiversity. Home gardening is a crucial approach for biodiversity preservation, particularly in metropolitan settings with a dearth of green spaces. The goal of this study is to determine the types of trees and crops growing in urban villages in Kota Kinabalu, as well as the socioeconomic and environmental benefits that urban residents receive from their home gardens, which serve as urban forests. In four urban villages, the data were gathered through observation and household questionnaires. Interviews have been conducted with 217 respondents in total. The results showed that the respondents planted a total of 14 different crop and tree types, with Misai Kucing (Orthosiphon stamineus) and mango tree (Mangifera spp.), Pandan (Pandanus sp.) and Red Onion (Allium ascalonicum) being the most popular trees and crops. The garden’s key contributions were lowering the temperature in the residential areas and as a leisure activity area. There was little correlation between the social benefit of urban forestry and the function of home gardens such as for food supply, medicinal use and hobby. Due to the small-scale home gardens, the economic contribution was little but complemented domestic requirements. The promotion of agroforestry systems in urban areas needs to be stepped up to preserve biodiversity, meet the demand for food and medicine, and provide environmental benefits.

Faculty of Science and Natural Resources, 2020

Biodiversitas Journal of Biological Diversity

Universiti Malaysia Sabah, 2011

Modern Applied Science, Aug 23, 2010

Modern Applied Science, Aug 23, 2010

IOP Conference Series: Earth and Environmental Science, 2020

Root interactions on sole crop and intercrop give different effects of competition. Understanding... more Root interactions on sole crop and intercrop give different effects of competition. Understanding on root interactions is very challenging due to the methodology limits in root studies especially when we intercrop between tree and crop components. The objectives of this study were (1) to measure the aboveground and belowground biomass of intercropped Acacia hybrid with Beta vulgaris (red beet) and (2) to determine the rooting pattern at each rhizotron depth. This study involved three (3) types of treatments, Acacia hybrid sole crop, Beta vulgaris sole crop, and intercropping of these two species. Root intensity and root biomass were measured. Root growth of red beet was affected by the presence of Acacia hybrid while Acacia hybrid was not affected for both either in sole or intercrop. However, the root intensity of Acacia hybrid was higher in deeper soil layer when intercrop with red beet. For the root biomass, Acacia hybrid was slightly affected when intercrop with red beet. In con...

IOP conference series, Feb 1, 2020

Root interactions on sole crop and intercrop give different effects of competition. Understanding... more Root interactions on sole crop and intercrop give different effects of competition. Understanding on root interactions is very challenging due to the methodology limits in root studies especially when we intercrop between tree and crop components. The objectives of this study were (1) to measure the aboveground and belowground biomass of intercropped Acacia hybrid with Beta vulgaris (red beet) and (2) to determine the rooting pattern at each rhizotron depth. This study involved three (3) types of treatments, Acacia hybrid sole crop, Beta vulgaris sole crop, and intercropping of these two species. Root intensity and root biomass were measured. Root growth of red beet was affected by the presence of Acacia hybrid while Acacia hybrid was not affected for both either in sole or intercrop. However, the root intensity of Acacia hybrid was higher in deeper soil layer when intercrop with red beet. For the root biomass, Acacia hybrid was slightly affected when intercrop with red beet. In contract, red beet was higher when intercrop with Acacia hybrid. In terms of shoot biomass, both crops were not affected when they are in sole or intercrop. The rooting pattern showed that the root length density was dominant in the upper layer for both crops, and intercrop treatment was significantly higher compared to sole crops. In conclusion, Acacia hybrid is the competitor to the red beet in belowground interaction in terms of root growth and rooting pattern. There is no differences in terms of aboveground interactions.

The species Potoxylon melagangai (SYM.) KOSTERM. is the only species in the genus, similar to the... more The species Potoxylon melagangai (SYM.) KOSTERM. is the
only species in the genus, similar to the closely related Eusideroxylon
zwageri (SYMINGTON); they are grouped together
under the subtribe Eusideroxylineae in the tribe
Cryptocaryeae. In the Malaysian states on Borneo, Potoxylon
and Eusideroxylon are differentiated by the native
names Melagangai and Belian, respectively. Internationally,
both species are collectively known as Borneo ironwood
and classified as heavy hardwood (HHW) due to
their natural durability and resistance to pest attacks in
the terrestrial and marine environments. Melagangai
usually occurs in the main canopy of the forest but is
commonly not the largest tree of the primary tropical
rainforests.

The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated d... more The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated due to its potential as a source of cheap biodiesel feedstock and short gestation period. However, the drive for Jatropha curcas cultivation has been relatively slow. Past fertilizer experiments on the species focused on plants in the field under different environmental conditions. This study was conducted to gauge the response of potted Jatropha curcas varieties to NPK fertilizer rate under a covered net house during the early establishment phase. The experiments were conducted in an RCBD using two months old seedlings of four varieties and four NPK fertilizer rates in 3 replicates. Local variety had the lowest height increment while India variety had the lowest diameter increment whether with and without fertilizer treatment. With fertilizer treatment, India variety had the best height increment while Indonesia variety had the best diameter increment. ANOVA was significantly different f...

The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated d... more The cultivation of the non-edible oil-bearing crop Jatropha curcas L. in Malaysia was initiated due to its potential as a source of cheap biodiesel feedstock and short gestation period. However, the drive for Jatropha curcas cultivation has been relatively slow. Past fertilizer experiments on the species focused on plants in the field under different environmental conditions. This study was conducted to gauge the response of potted Jatropha curcas varieties to NPK fertilizer rate under a covered net house during the early establishment phase. The experiments were conducted in an RCBD using two months old seedlings of four varieties and four NPK fertilizer rates in 3 replicates. Local variety had the lowest height increment while India variety had the lowest diameter increment whether with and without fertilizer treatment. With fertilizer treatment, India variety had the best height increment while Indonesia variety had the best diameter increment. ANOVA was significantly different f...

Sabah is recognized as the poorest state in Malaysia, whilst having numerous rural communities ca... more Sabah is recognized as the poorest state in Malaysia, whilst having numerous rural communities categorized as a hardcore poor especially in the rural district, Pitas. The Kanibongan project involving rubber smallholders in the Pitas district has been developed by the State Government for the purpose of socio-economic development. The main objectives of this study were to determine the effectiveness of the project implementation in addressing the poverty level in the area involved; and to determine the factors driving the smallholders to participate in the project and the problems faced by these smallholders. This study involved five villages, namely, Kampung Masin, Kampung Kutoyon, Kampung Sulakulong, Kampung Simpang Empat and Kampung Simpang. Data was collected with 100% sampling comprising of 195 respondents by using questionnaires and interviews. Based on the results of this study, the average monthly income of the smallholders showed significant improvement up to 30% since its i...

Prospects and Utilization of Tropical Plantation Trees, 2019

Tropical forest ecosystem provides important timber and non-timber forest products and services e... more Tropical forest ecosystem provides important timber and non-timber forest products and services especially to communities that live within or adjacent to forests. The purpose of this paper is to describe the forest resources available and used by villagers; and the reliance of the community on forest resources for livelihood. Rapid Rural Appraisal (RRA) which consists of structured questionnaire interview and transect walk was used to determine the forest resources used, socio-economic standing, and rank the importance of forest resource. The community of Kg. Wawasan community relied on forest resource on a subsistence basis because of its vicinity to the forest, ease of obtaining forest resources, to supplement their daily needs, and far distance from markets. The community consist of low income earner (<RM1000) with limited opportunity or interest to pursue employment in other sectors. About 25 plant species were harvested from the wild for food medicine, utensil, timber and bu...

Prospects and Utilization of Tropical Plantation Trees, 2019

Sabah Forestry Department, 2018

IOP conference series, Feb 1, 2023

The growing urbanization has greatly reduced biodiversity. Home gardening is a crucial approach f... more The growing urbanization has greatly reduced biodiversity. Home gardening is a crucial approach for biodiversity preservation, particularly in metropolitan settings with a dearth of green spaces. The goal of this study is to determine the types of trees and crops growing in urban villages in Kota Kinabalu, as well as the socioeconomic and environmental benefits that urban residents receive from their home gardens, which serve as urban forests. In four urban villages, the data were gathered through observation and household questionnaires. Interviews have been conducted with 217 respondents in total. The results showed that the respondents planted a total of 14 different crop and tree types, with Misai Kucing (Orthosiphon stamineus) and mango tree (Mangifera spp.), Pandan (Pandanus sp.) and Red Onion (Allium ascalonicum) being the most popular trees and crops. The garden’s key contributions were lowering the temperature in the residential areas and as a leisure activity area. There was little correlation between the social benefit of urban forestry and the function of home gardens such as for food supply, medicinal use and hobby. Due to the small-scale home gardens, the economic contribution was little but complemented domestic requirements. The promotion of agroforestry systems in urban areas needs to be stepped up to preserve biodiversity, meet the demand for food and medicine, and provide environmental benefits.

Faculty of Science and Natural Resources, 2020

Biodiversitas Journal of Biological Diversity

Universiti Malaysia Sabah, 2011

Modern Applied Science, Aug 23, 2010

Modern Applied Science, Aug 23, 2010

IOP Conference Series: Earth and Environmental Science, 2020

Root interactions on sole crop and intercrop give different effects of competition. Understanding... more Root interactions on sole crop and intercrop give different effects of competition. Understanding on root interactions is very challenging due to the methodology limits in root studies especially when we intercrop between tree and crop components. The objectives of this study were (1) to measure the aboveground and belowground biomass of intercropped Acacia hybrid with Beta vulgaris (red beet) and (2) to determine the rooting pattern at each rhizotron depth. This study involved three (3) types of treatments, Acacia hybrid sole crop, Beta vulgaris sole crop, and intercropping of these two species. Root intensity and root biomass were measured. Root growth of red beet was affected by the presence of Acacia hybrid while Acacia hybrid was not affected for both either in sole or intercrop. However, the root intensity of Acacia hybrid was higher in deeper soil layer when intercrop with red beet. For the root biomass, Acacia hybrid was slightly affected when intercrop with red beet. In con...

IOP conference series, Feb 1, 2020

Root interactions on sole crop and intercrop give different effects of competition. Understanding... more Root interactions on sole crop and intercrop give different effects of competition. Understanding on root interactions is very challenging due to the methodology limits in root studies especially when we intercrop between tree and crop components. The objectives of this study were (1) to measure the aboveground and belowground biomass of intercropped Acacia hybrid with Beta vulgaris (red beet) and (2) to determine the rooting pattern at each rhizotron depth. This study involved three (3) types of treatments, Acacia hybrid sole crop, Beta vulgaris sole crop, and intercropping of these two species. Root intensity and root biomass were measured. Root growth of red beet was affected by the presence of Acacia hybrid while Acacia hybrid was not affected for both either in sole or intercrop. However, the root intensity of Acacia hybrid was higher in deeper soil layer when intercrop with red beet. For the root biomass, Acacia hybrid was slightly affected when intercrop with red beet. In contract, red beet was higher when intercrop with Acacia hybrid. In terms of shoot biomass, both crops were not affected when they are in sole or intercrop. The rooting pattern showed that the root length density was dominant in the upper layer for both crops, and intercrop treatment was significantly higher compared to sole crops. In conclusion, Acacia hybrid is the competitor to the red beet in belowground interaction in terms of root growth and rooting pattern. There is no differences in terms of aboveground interactions.