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CORD
Published by International Coconut Community
ISSN : 02151162     EISSN : 27218856     DOI : 10.37833/cord
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Library & Information Science
Aims CORD aims to publish original research results and reviews on research and development. While encouraging those involved in research and developments to disseminate their finding it also assists policy makers and planners to be aware of the latest developments in the sector Scope CORD encompasses a broad range of research topics in animal sciences: seedlings and genetics, farming, harvesting, production, health, biotechnology, and production, socio-economic, and policy.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol 26 No 1 (2010): CORD" : 6 Documents clear
Preliminary Study on Heavy Metals in Coconut and Coconut Products Warsakoon, W.M.M.P.D.K.
International Coconut Community Journal Vol 26 No 1 (2010): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.399 KB) | DOI: 10.37833/cord.v26i1.132

Abstract

Coconut is one of the major plantation crops which plays a pivotal role in the economy of Sri Lanka. The objective of this study is to investigate the presence of heavy metals in fresh coconut kernel and in some coconut products in Sri Lanka. Levels of lead (Pb), Chromium (Cr), Aluminum (Al), Ferrous (Fe), Copper (Cu), Manganese (Mn), Cadmium (Cd), Zinc (Zn), and Arsenic (As) were determined in samples of fresh coconut kernel, coconut milk, coconut milk powder, and coconut cream using the Atomic Absorption Spectrometer (AAS) method. Fresh coconut kernel and coconut products were found to contain Fe, Zn, Cu and Mn. Fresh coconut kernels showed the highest content of these metals. Coconut cream and coconut milk samples demonstrated the lowest levels of these metals. Potentially toxic heavy metals such as Pb, Cd, As, and Al were not detected in the tested samples. The occurrence of the heavy metals in all the coconut products tested was below the permissible levels suggested by the USDA, World Health Organization, and the Quality Standards of CODEX Vol. 1 Section 6, 1991.
Market Level Price Analysis of Copra Trading in the Philippines Susan M. Rivera; Flordeliza A. Lantican
International Coconut Community Journal Vol 26 No 1 (2010): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.802 KB) | DOI: 10.37833/cord.v26i1.133

Abstract

The dynamics in market level prices was examined for Philippine copra trading. The analysis of the price formation process in the copra miller-dealer-farmer markets showed that a weak form of market integration characterized the trading of copra resecada between dealers and millers in all Philippine regions. In contrast, integration of any form was absent between miller-farmer and dealer-farmer in all regions except in Region V. Likewise, no integration was noted in all market levels when dealers and millers used copra resecada price while farmers were given the copra corriente Pasa price. Important factors were identified that contributed to the level of market integration. Recommendations made encompass areas on coconut production and productivity, market infrastructure and facilities, and pricing system in copra trading.
Characterization and Properties of Sri Lankan Coir Fibre Dineth S. Samarawickrama
International Coconut Community Journal Vol 26 No 1 (2010): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (436.49 KB) | DOI: 10.37833/cord.v26i1.134

Abstract

This study mainly concentrated on revealing the scientific data on the properties of Sri Lankan coir fibre and classifying them into different grades based on scientific parameters instead of visual observations to establish quality specifications for the coir fibre industry in Sri Lanka. Critical parameters were studied for suitability of the industrial applications. Size distribution and average length of different fibres were determined by the frequency distribution method, to be used as industrial oriented parameters. The weighted average breaking load of coir fibre was determined using the universal tensile strength tester. As per the result, coir fiber has an elongation property of about 20-28%. Also, coir fibre is a highly resilient natural fibre and Omat coir fibre had the highest value among other coir fibre types. Porous microstructure of the coir fibre was observed through the scanning electron microscopy and hygroscopic characteristics described according to the structure. The moisture equilibrium values of coir fibre in Sri Lanka were observed at 15-18% and it was achieved by sun drying. This moisture levels avoid the heavy condensation during transportation particularly in countries with cold climate. Properties of coir fibre found in the study were used in the establishment of the National Quality Standard specifications for mechanically extracted coir fibre in Sri Lanka.
Metal Coated Coir Fiber for Smart Textile Applications U. S. Sarma
International Coconut Community Journal Vol 26 No 1 (2010): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.718 KB) | DOI: 10.37833/cord.v26i1.135

Abstract

Thermo regulated textiles attracted attention in cold countries for outdoor activities in extreme winter conditions. Temperature regulation of textiles for use in adverse environmental condition can be achieved by integrating heat regulated natural fibers into textile construction. Coir being an abundantly available, cheap and biodegradable natural fiber seems to be a material worthy of investigation. Light weight and insulation of coir fiber add to the comfort of the wearer in textile application. In this study, coir surface is made conductive by metal coating and temperature regulation is achieved by applying a small voltage. Copper, aluminium and silver metals are used for coating the coir fiber surface. Thin film coating on one side of coir fiber is done by vacuum deposition technique. Temperature regulation of upto 12 degrees is found to be possible by the application of a potential of about 1 Volt. Analysis of variance is used to compare the effect of thickness of coating and type of coating material on heat production with respect to voltage. Metal coating on coir fiber is found to provide a versatile combination of physical, thermal and optical properties and can be subjected to textile processing without any problem for the development of smart textiles.
Hybrid Testing and Variety Identification of Coconut (Cocos nucifera L.) in Sri Lanka Using Microsatellite Markers Lalith Perera
International Coconut Community Journal Vol 26 No 1 (2010): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v26i1.136

Abstract

Currently, there is no reliable method for confirmation of the identity of coconut cultivars and the legitimacy of coconut hybrids. This makes serious problems in coconut breeding and seed production as the identity of coconut cultivars/hybrids can only be approximated at the very late stages of the growth based on reproductive traits owing to long juvenile period and the perennial nature of coconut. A microsatellite (SSR) marker based approach was used to develop an identification method for coconut varieties; Sri Lanka Tall, Sri Lanka Green Dwarf and Sri Lanka Yellow Dwarf, the key parents in the breeding programmes and tall x dwarf hybrids among them, using 18 coconut specific SSR primers. The validity of using yellow colour petiole as a phenotypic marker for the identification of dwarf yellow was also investigated. Two SSR primers, namely CAC20 and CNZ6 have exhibited the potential for distinguishing coconut varieties used as parents in the breeding programme and for confirming hybridity. It was revealed that yellow colour petiole is not a reliable marker for identification of dwarf yellow variety.
Eco-friendly Traps to Control Sexapa sp. Meldy L.A. Hosang
International Coconut Community Journal Vol 26 No 1 (2010): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.163 KB) | DOI: 10.37833/cord.v26i1.137

Abstract

The indigenous insect, Sexava sp. causes serious damage to coconut palms/plantations in some provinces of Indonesia. The objective of this study is to develop and evaluate the performance of three types of eco-friendly Balitka MLA-traps, standing alone and in combination with insect glue (fly glue and tangle foot). Balitka MLA trap was designed to capture the Sexava spp. especially during the night when they move from one place to another through the coconut trunk. The traps made from black cloth, insect glue, metal wire, and yarn were fixed on the coconut trunks at 1 – 1.5 M height. Three different types of traps namely Balitka MLA Trap A, B, and C were developed and evaluated. The study found that trap type C captured nymphs and adult of 1 – 7 nymphs/palm/day or 30-210 nymphs/palm/month. The trap also enabled natural enemies such as spiders and lizards to catch the snared pests easily. A total of 106 to 131 nymphs were caught by tangle foot and insect glue respectively after 3 months of fixing the traps in the field. These traps could potentially be used together with a biological control method to replace the use of insecticides in Sexava-infested areas. This study was conducted in Talaud District, North Sulawesi Province, Indonesia from 2006 to 2007. Based on the study results, and considering the simplicity and eco-friendliness of the trap type C, it is recommended that it be used in coconut plantations to bring down the population of this insect pest, Sexava sp. and thereby control its damage to coconut palms.

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