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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 38 (2022): CORD" : 6 Documents clear
In Vitro Study on Actinomycetes Extracts Against The Stem Bleeding Disease of Coconut: Antifungal Studies Nisha, M. M.; Kumar, S. Santhosh; Ibomcha, N.; Susmitha, S.; Muddukrishna, B. V.
International Coconut Community Journal Vol 38 (2022): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v38i.431

Abstract

Several compounds produced by Actinomycetes group of bacteria have proven potential in inhibiting plant pathogenic fungi. In the present study, two microbial ethyl acetate extracts from Streptomyces were tested for their antifungal properties against Thielaviopsis paradoxa, the causal organism of stem bleeding disease in coconut. The cultural filtrates of 2 strains of Streptomyces (AFL-1 and AFL-2) were extracted with Ethyl acetrate. The resulting ethyl acetate extract of AFL-1 showed complete in-vitro inhibition of fungal growth at relatively low concentrations (0.25%) while Ethyl ecetate extract of AFL-2 needed higher concentrations (over 0.5%) to eliminate pathogen growth. This finding indicate their potential and further exploitation as biopesticides for the control of deadly pathogen T. paradoxa.
Estimating Technical Efficiency and its Determinants in the Coconut Plantations: The Case of Kurunegala Plantations Limited, Sri Lanka Samarakoon, S. M. M.; Gunarathne, L. H. P.; Weerahewa, J.
International Coconut Community Journal Vol 38 (2022): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v38i.447

Abstract

This study estimated the Technical Efficiency (TE) of coconut production in Sri Lanka using the stochastic frontier production function procedure. Data on inputs and coconut production recorded by Kurunegala Plantations Limited from 2000 – 2018 were used for the analysis. The stochastic production frontier in Cobb-Douglas form and the inefficiency model were estimated by single-step Maximum Likelihood method using STATA 14 computer software package treating coconut yield as the dependent variable and fertilizer, rainfall, labor, chemicals, tractor hours, mulching harrowing/plowing, agro-ecological zones, education level of the managers and bearing coconut extent as independent variables. Results revealed that TE of coconut production ranged from 81-98%, with an average of 88%, indicating that there is scope for increasing the production by as much as 12% without increasing inputs and simply using a higher technology level. The outcome of the analysis shows that inorganic fertilizer, rainfall, labor, tractor hours, and mulching are kind positive and significant. In contrast, agro-chemicals such as weedicides, fungicides and pesticides and plowing/harrowing did not show a significant contribution to coconut production. In respect of the farm and farmer-specific characteristics, the size of the estate has a positive relationship with technical inefficiency, meaning that smaller estates are more efficient than larger estates. It also shows that the agro-ecological zones and educational level have no significant effect on the efficiency of coconut production. The results highlight the need for government and private sector assistance in improving the efficiency of smallholders and promoting access to productive inputs.
Coconut Growers' Knowledge and Perceptions on Climate Change and Adaptation Strategies in Puttalam District of Sri Lanka Godage, Ruvani Subhathma Wickramarathna; Gajanayake, Bandara
International Coconut Community Journal Vol 38 (2022): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v38i.442

Abstract

ABSTRACT At present climate changes and extreme weather events which are significantly affects the productivity of coconut in the major coconut growing areas in the country and ultimately it will threaten the livelihood of coconut cultivating community. The present study was undertaken to determine the coconut growers’ knowledge and perceptions about climate change and adaptation strategies. The study was conducted in Puttalam district which is more vulnerable to climate change impacts. The study sample comprised of 140 coconut growers. The study findings emphasized that notable fraction of growers have fairly high knowledge and perceptions about climate change and various impacts. Further, age, education and farming experience were found to be positively related and gender, land holding, family size, land ownership were negatively related with growers’ knowledge and perceptions. Additionally, age, family size and education were found to be significantly related with growers’ knowledge and only the family size and education were found to be significantly related with growers’ perceptions. Moreover, growers’ knowledge was positively and significantly related with their perceptions and adaptation measures as well as perceptions also positively and significantly related with adaptation measures. Also, findings showed that significant importance to create extension and awareness campaigns to educate the coconut growers about climate change related risks and uncertainties and suitable adaptation strategies. Therefore, agriculture policy makers should more focus on mitigating impacts of climate change to enhance the sustainable coconut cultivation in the country with providing more information, financial supports and subsidies to growers to adopt suitable adaptation measures. Keywords: adaptation strategies, climate change, coconut growers’ knowledge, perceptions
Estimating Coconut Production and Productivity of Local Tall in Taliabu Island Using Drone and Sampling Population Novarianto, Hengky
International Coconut Community Journal Vol 38 (2022): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v38i.453

Abstract

The objective of this research is to know the local tall coconut population, production and productivity in Taliabu Island, North Maluku Province, which is crucial for the industry. The aerial photography method using drones has been carried out to determine the distribution of coconut diversity, palm age, production potential and local coconut productivity. Production data and coconut fruit components were carried out on 6 sample populations. The result (Arvitech) revealed that in Jorjoga, the area under coconut was 335 ha out of the surveyed area of 1,066 ha. The total number of coconut palms was 55.728 palms. The Geomac survey carried out in Tabona indicated there were 77,629 coconut palms in an area of 1,000 ha. The fruit component analysis showed the weight of the whole fruit and the fruit without husk at the Jorjoga was 1,340-1,629g/fruit, and 805-1,033g/seed nut, and in Tabona was 1,478-1,577g/fruit and 944-966g/seed nut. The coconut production potential at Jorjoga was 9,539 nuts/ha/year, higher than that of Tabona with 7,227 nuts/ha/year. The coconut production and productivity estimation information can be used to develop a coconut replanting and rehabilitation strategy wherein selected varieties with good attributes for the tall coconut can be planted and ensure their proper maintenance, thus can be used to estimate the need for raw materials required for the establishment of the coconut industry in Taliabu Island. Determining the coconut population status can increase the production and productivity of coconut palms through rejuvenation, rehabilitation and expansion of coconut plantations using superior tall coconut seedlings.
A Study on Acid Hydrolysis and Composition of Polysaccharides Concentrated from Coconut Kernel Yalegama, Loku Liyana Waduge Chandi; Karunaratne, Desiree Nedra; Sivakanesan, Ramaiah
International Coconut Community Journal Vol 38 (2022): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v38i.436

Abstract

Defatted dehydrated coconut kernel powder (DDCP) is the by-product obtained from virgin coconut oil production through dry process. The aim of the study was to concentrate polysaccharides from DDCP and to investigate their acid hydrolysis capacity and the monosaccharides composition. Residual fat, protein and soluble sugars of DDCP were removed to concentrate coconut kernel Insoluble polysaccharides (CKIP) while water extract of DDCP was used to concentrate coconut kernel soluble polysaccharides (CKSP). Neutral detergent solution (NDS) was used to concentrate neutral detergent soluble polysaccharides (NDSP) and neutral detergent insoluble polysaccharides (NDIP) from CKIP. The acid detergent solution (ADS) was used to concentrate acid detergent soluble polysaccharides (ADSP) and acid detergent insoluble polysaccharides (ADIP) from CKIP. Results indicated fresh coconut kernel contained 7.2±1.5% carbohydrates and the content increased to 78.1±1.3% with the removal of residual fat, protein and sugars. The yields of the polysaccharide fractions were 46.0±3.1% (CKIP) and 9.2± 0.1% (CKSP), 10.2±0.3% (NDSP) and 78.3±4.2% (NDIP), 25.1±0.3% (ADSP) and 45.2±2.9% (ADIP). Trifluoracetic acid had a higher hydrolyzing capacity than sulphuric acid except for hydrolyzing of ADIP. The monosaccharides composition of the polysaccharides was significantly different (p<0.05) among the polysaccharide concentrates. The main monosaccharides in NDSP were glucose (73.86%) and xylose (19.7%) and, in ADSP were rhamnose (33.45%) and glucose (46.91%). Rhamnose (29.95%) arabinose (26.38%), xylose (21.56%) and mannose (12.87%) were present in CKSP while mannose (68.46%), galactose (20.59%) and xylose (10.59%) were present in CKIP. Results indicated that soluble polysaccharides of coconut kernel were hydrolyzed into monosaccharides readily compared to the insoluble polysaccharides.
Evaluation of Staple Foods Supplemented with Defatted Coconut Testa Flour Fareed, Rushdah; Ulpathakumbura, Savani; Yalegama, Chandi; Hewapathirana, Dilani; Marikkar, Nazrim
International Coconut Community Journal Vol 38 (2022): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v38i.443

Abstract

Coconut testa is an important byproduct of coconut processing. In this study, the acceptability of staple foods incorporated with defatted coconut testa flour (CTF) was investigated. Foods supplemented with CTF will be ideal as a functional food for diabetes. Formulations of string hoppers incorporated with CTF were done by mixing white rice flour (RF) with CTF in four different ratios; F1 (RF: CTF=70:30), F2 (RF: CTF=75:25), F3 (RF: CTF=80:20) and F4 (RF: CTF=85:15). Likewise, formulation of flat-bread rotti were prepared by mixing wheat flour (WF) with CTF in four different ratios; P1 (WF: CTF=60:40), P2 (WF: CTF=70:30), P3 (WF: CTF=80:20) and P4 (WF: CTF=90:10). Acceptability of the formulations was determined using Friedman test and preference ranking test. According to sensory evaluation, the highest score of overall acceptability and other sensory attributes were observed for composite flour mixtures incorporated with 25% of CTF in rice flour for string hoppers (idiyappa) and 20% of CTF in wheat flour for flat- bread (rotti). The proximate analysis of the finished products namely, string hopper (idiyappa) and flat-bread (rotti) showed better nutritional properties with regard to protein, dietary fiber, fat and mineral content than respective composite flour mixtures used in their preparation. Furthermore, IF and string hopper (idiyappa) samples showed increased nutritional compositions in terms of dietary fiber, mineral content when compared to RF and flat-bread rotti samples. In conclusion, the quality attributes and dietary fibre content of the two formulated products indicated their potential use as anti-diabetic foods.

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