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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 387 Documents

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Effect of Vermicompost on Growth of Coconut Seedlings under Field Conditions in Sri Lanka Senarathne, S. H. S.
International Coconut Community Journal Vol 34 No 1 (2018): CORD
Publisher : International Coconut Community

Organic matter contributes in maintaining soil fertility in agriculture. Vermicompost is rich in plant nutrients and recognized as potential organic manure source for many crops. In this experiment, different amount of vermicompost and inorganic fertilizers were tested. The objective of the research was to evaluate the effect of vermicompost on the growth of coconut seedling in the field conditions and to reduce the cost of production of coconut plantations. Treatments were arranged in a Randomized Complete Block Design (RCBD) with three replicates. The experiment consisted of three different fertilizer treatments with vermicompost (100%) + Dolomite 500g (T1), Inorganic fertilizer (Young Palm Mixture) + Dolomite (T2) and vermicompost + Inorganic fertilizer (Young Palm Mixture) + Dolomite (T3). Growth measurements revealed A significantly higher seedling girth, leaf production rate and early highest coconut seedling flowering percentage in the vermicompost base integrated fertilizer applied treatment when compare with other two treatments. This experiment had brought out that application of vermicompost base integrated fertilizer application system is beneficial for coconut seedlings in the field for the better field establishment and vigorous seedling growth.

Coir-Krishimithra: An Apposite Medium for Cultivation of Vegetable/ Medicinal/ Ornamental Plants Radhakrishnan, S.; Ravindranath, Anita Das; Reghuvaran, Abesh; Geena, M. G.
International Coconut Community Journal Vol 34 No 1 (2018): CORD
Publisher : International Coconut Community

Coir pith is a by-product of the coir fibre processing industry. Accumulation of coir pith leads to an environmental concern and its management is a major problem with all coir industrialists. Therefore biodegradation of coir pith is an essential requirement to control pollution. Coir pith is a potential wealth and can be converted into valuable organic manure by microbial degradation. A method of composting of coir pith with urea has been developed by Coir Board which uses a fungus viz., Pithplus (Pleurotus sajor caju). Application of urea releases higher concentration of ammonia in the soil making it more acidic and retards soil natural fertility. Hence an alternative cost effective nitrogen supplement needs to be developed as a substitute to urea for composting of coir pith. Coir pith can be converted to effective organic manure with the use of fungus (Pleurotus sajor caju) along with the addition of nitrogen supplements like Azolla, Neem cake and Fish waste in 1:1:1 proportion. The present study aims at the formulation of bioorganic manure from coir pith avoiding urea in the composting. Overall assessment on the physico chemical properties of the biodegraded coir pith leads to the conclusion that a combination of Azolla, Neem cake and Fish waste in 1:1:1 proportion was found to be efficient in lignin degradation and contribute to novel changes in coir pith. A study was conducted to evaluate the competence of biocompost thus produced for the cultivation of Amaranthus and Groundnut. Studies confirmed that Coir-KrishiMithra can be used as an effective growing media and hence, the use of Coir-KrishiMithra, a 100% organic manure can be entertained in homes, nurseries and fields for the cultivation of plants mainly vegetables; thereby promoting the eco-friendly organic cultivation and minimize the environmental pollution caused by chemical fertilizers.

Germplasm and Incentives for Boosting Coconut Production: Case Studies from the Pacific Region and Some Other Countries Bourdeix , Roland; Tuivavalagi, Nat; Mataora, Victor; Jerard, Augustine B.; Hussein, Naheed
International Coconut Community Journal Vol 34 No 1 (2018): CORD
Publisher : International Coconut Community

The Coconut Industry Development for the Pacific Project (CIDP) is a joint initiative of the Pacific Community, the European Union and the African, Caribbean and Pacific Group of States. The aim of CIDP is to bolster the coconut sector in the region through improving the competitiveness of small producers and strengthening production and regional integration of related markets. In the framework of this project, CIRAD (French Agricultural Research for Development) was in charge of helping design improved seed production systems and conducting a risk analysis for coconut value chain in the Pacific region. During a meeting held in April 2018 in Fiji, thirty participants from sixteen countries and territories in the Pacific region participated to a brainstorming on incentives for boosting coconut production. In June 2018, CIRAD launched an online survey on the same topic by contacting more than a thousand of coconut stakeholders worldwide. This communication presents the first results of these two initiatives regarding incentives for boosting coconut production, in the Pacific region but also in comparison with countries from other regions.

Principal Component Analysis of Fatty Acid Data to Detect Virgin Coconut Oil Adulteration by Palm Olein Marikkar, J. M. N.; Yanty, N. A. M.
International Coconut Community Journal Vol 34 No 1 (2018): CORD
Publisher : International Coconut Community

Authentication of virgin coconut oil (VCO) is important to safeguard customers from adulteration practices. A study was carried out to distinguish VCO from VCO adulterated with palm olein (PO) using principal component analysis (PCA) of fatty acid (FA) compositional data. Six samples of VCO, and six samples of palm olein were obtained from oil producers’ companies in Malaysia. Six samples of adulterated VCO were prepared by mixing with palm olein in 5% increment of adulteration. Fatty acid compositions of all oil samples were determined individually and the data were analyzed statistically. PCA analysis showed that lauric, palmitic and oleic acids were the most influencing parameters to discriminate VCO from adulterated VCO. Out of the thirteen FA variables investigated, ten were found to display high correlation with increasing adulteration. Predictive models showing higher coefficient of determination (R2) and good confidence limits were useful for quantification purposes.

Perceptions of Farming Community in Relation to Problems in Farming and Prospects of Coconut Mite Management in Bangladesh Islam, M. Nazirul; Rahman, M. Sayedur; Islam, M. Ishaqul; Samsunnahar, M.; Karim, A. N. M. Rezaul; Azad, A. K.
International Coconut Community Journal Vol 34 No 1 (2018): CORD
Publisher : International Coconut Community

A study was conducted to analyze community perception on homestead agro-biodiversity and conservation of coconut genetic resources at Bagharpara Upazila (Sub district) of Jashore district, Bangladesh in October 2011. Tools and techniques of Participatory Rural Appraisals (PRA) were utilized to identify the socio-economic factors and agronomic practices influencing homestead agro-biodiversity. The participants identified coconut as a leading species in the homesteads. Communities suspected that the wave (electro-magnetic) generating from mobile phone towers was the cause of damaging coconut in their villages. Being disheartened with continuous yield loss, the farmers have resorted to fell down their coconut trees and shifted to cultivating fruit trees or suitable field crops. The research team used the matrices of PRA to develop a problem tree, which marked mite infestation in coconut as the focal problem. The developed problem-tree was transposed into an objective tree. Based on the objective tree, the research team was able to develop and implement a three-year research project on mite management in coconut involving farmers as implementers. The intervention stimulated community knowledge and skills towards mite management and conservation of unique traditional coconut varieties.

Adoption of Recommended Plant Protection Measures for the Management of Major Coconut Pests by Coconut Growers in Kurunegala District, Sri Lanka Subhathma, W. G. Ruvani
International Coconut Community Journal Vol 34 No 1 (2018): CORD
Publisher : International Coconut Community

Coconut production in Sri Lanka is threatened by pest and diseases. Therefore, different remedial measures have been introduced by Coconut Research Institute (CRI) to safeguard the plantations. This study was carried out to determine the adoption of recommended plant protection measures to manage major pests of coconut by the growers in different land categories. The growers were selected from Kurunegala district, which is the major coconut growing district in coconut triangle in Sri Lanka. Findings of the study revealed that more than 70 percent of the growers in all land categories above 2Ac had adopted technologies recommended by CRI to control black beetle. Technology adoption was around 60 percent for red weevil control, around 30 percent for coconut mite and around 65 percent for plesispa beetle. It was also noted that the decision making on the adoption of different technologies is affected by the perceptions of the growers. Growers’ perception was determined by two factors, information receiving sources and occurrence of pest attacks in their fields. Further, it was found that the growers are having limited access to latest technologies in pest control. In addition, the study revealed that unawareness of technologies and low attention for coconut farming was the two major reasons for poor adoption of the recommended technologies. It is concluded that coconut growers in Kurunegala district require more awareness regarding recommended plant protection measures to manage major coconut pests and strengthen extension programes.

Comparative Evaluation of Sri Lanka Tall and Dwarf x Tall Coconut Hybrids for Tolerance to Weligama Coconut Leaf Wilt Disease in Sri Lanka Perera, S. A. C. N.; Waidyarathne, K. P.; Dissanayaka, H. D. M. A. C.; Nainanayake, N. P. A. D.; Ekanayake, G. K.
International Coconut Community Journal Vol 32 No 2 (2016): CORD
Publisher : International Coconut Community

Weligama Coconut Leaf Wilt Disease (WCLWD) is a phytoplasma disease found in Southern Sri Lanka. It is an incurable, debilitating disease resulting in yield loss and ultimate death of the palm and over 250,000 palms have been identified to be infected. Breeding coconuts for resistance is a viable option in managing incurable diseases and for this WCLWD resistant germplasm is needed. Accordingly, the objective of the current research was to investigate the comparable levels of WCLWD resistance of Sri Lanka tall and CRIC65 coconut cultivars which are favoured in Sri Lanka. Eight coconut estates which were planted with Sri Lanka tall (SLT) and CRIC65 hybrids as a mixed plantation or in close proximity were observed. Out of them an extent of about 04 acres of one estate was selected for detailed analysis using the disease severity index developed based on the WCLWD symptoms; flaccidity, leaf yellowing and marginal necrosis of leaflets. General observations indicated the presence of WCLWD in both SLT and the hybrid CRIC65. Marginal necrosis was at a minimal level in both the cultivars, while the other symptoms; flaccidity and yellowing scored higher values at all levels in the spiral in SLT than in hybrid CRIC65. Moreover, the hybrid coconut CRIC65 displayed lower percentage of disease incidence and significant reduction in the levels of the main symptom flaccidity. As a result, the hybrid palms recorded significantly low disease index value than SLT. Moreover, disease incidence was observed to be low in properly managed estates irrespective of the cultivar. With the findings of the current study, coconut varieties SLGD and selected SLT which remain healthy under the same disease pressure can be recommended as parents in a breeding programme aiming at resistance/tolerance to WCLWD.

Identification of Training Needs of the Coconut Growers in Sri Lanka Herath, Chaminda S.
International Coconut Community Journal Vol 32 No 2 (2016): CORD
Publisher : International Coconut Community

The coconut farming sector in Sri Lanka has been facing many problems which eventually led to a decrease in production and profitability in coconut farming. The main reason for the decrease in production has been the non adoption of scientific technologies primarily due to the lack of technical knowledge of coconut growers on scientific cultivation practices. Hence, a study was undertaken to assess the technical knowledge and the level of adoption of management practices with a view to identify and prioritize the training needs of coconut growers’. Training needs of the growers were assessed using the Borich Needs Assessment Model. The identified training needs were filtered by quadrant analysis. The discrepancy score of grower’s and the coconut development officers’ of the three districts were used as the dimensions of the quadrant analysis. The training needs were identified under four categories namely, planting practices, fertilizer application practices, agronomy practices and pest management practices. The study revealed that the most knowledgeable aspect was the planting practices and the least knowledgeable was the pest management practices, as evidenced by higher level of adoption of planting practices and the least adoption of pest management practices. It was concluded from the study that the most desirable training need was on the pest management practices followed by fertilizer application practices in the coconut triangle of Sri Lanka.

Coconut Micropropagation in Mexico using Plumule and Floral Explants Oropeza, Carlos; Sáenz, Luis; Chan, José Luis; Sandoval, Gabriela; Pérez-Núñez, Teresa; Narvaez, Maria; Rodríguez, Guillermo; Borroto, Carlos
International Coconut Community Journal Vol 32 No 2 (2016): CORD
Publisher : International Coconut Community

This paper focuses on the research efforts carried out by CICY in Mexico on micropropagation of coconut. They started during the nineties in collaboration with Wye College (UK) and ORSTOM-CIRAD (France), with the development of a protocol that was reproducible and more efficient than previous ones, based on plumule explants grown in different media based on Y3 medium added with activated charcoal, gelling agent and of particular importance growth regulators 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (BAP). Within the next decade basic research was carried out to study the process of somatic embryogenesis from plumule explants, with an approach including morpho-histological, physiological, biochemical and molecular points of view, in order to gain knowledge that could be useful to further improvement of the process. Also different practical approaches were tested including changes in the media formulation, embryogenic callus multiplication and secondary somatic embryogenesis. As a result a highly efficient protocol was developed that could potentially yield over a hundred thousand somatic embryos from a single plumule explant. Embryos were able to germinate and convert to plantlets, that after planting, successfully grew to sexual maturity and fruit production. This protocol is currently being scaled up to a semi-commercial level. Also within the past five years, a protocol using rachilla explants has been developed for the production of embryogenic callus and its multiplication, and embryos produced were able to germinate and convert to plantlets, setting the basis to develop a process for massive propagation of coconut, such as the one already developed using plumule explants.

Improving the Availability of Valuable Coconut Germplasm using Tissue Culture Techniques Adkins, Steve; Nguyen, Quang Thien; Foale, Mike
International Coconut Community Journal Vol 32 No 2 (2016): CORD
Publisher : International Coconut Community

Coconut cultivation faces a number of acute problems that reduce its productivity and competitiveness. These problems include various biotic and abiotic challenges as well as an unstable market for its traditional oil-based products. Around 10 million small-holder farmers cultivate coconut palms worldwide on c. 12 million hectares of land, and many more people own a few coconut palms that contribute to their livelihoods. Inefficiency in the production and supply of appropriate seedlings for replanting a generally ageing resource remains an issue, especially where there is uncertainty about the ability of local populations to resist potential disease threats. However, tissue culture in such cases is expected to provide pragmatic solutions. Over the past 60 years much research has been directed towards developing and improving protocols for (i) embryo culture; (ii) clonal propagation via somatic embryogenesis and (iii) germplasm conservation via cryopreservation. Recent advances have provided new ways to improve these protocols, especially cryopreservation. Although effective embryo culture and cryopreservation are now possible, the low efficiency of conversion of somatic embryos to ex vitro seedlings still restrains the large-scale clonal propagation of coconut. Although tissue culture in coconut has developed over the recent decades, further improvement of protocols and their application to a wider range of germplasm will boost their adoption for the breeding, conservation and propagation of coconut.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Mufid Febrianto

Contact Email mas.mufid@coconutcommunity.org

Phone +628111885787

Journal Mail Official journal@coconutcommunity.org

Editorial Address 8th Floor BAPPEBTI Building Jl. Kramat Raya No. 172 Kenari, Senen, Jakarta, Indonesia 10430 Phone +62 21 3100556-557 Fax +62 21 3101007

Location Kota adm. jakarta pusat, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Mufid Febrianto

Contact Email
mas.mufid@coconutcommunity.org

Phone
+628111885787

Journal Mail Official
journal@coconutcommunity.org

Editorial Address
8th Floor BAPPEBTI Building Jl. Kramat Raya No. 172 Kenari, Senen, Jakarta, Indonesia 10430 Phone +62 21 3100556-557 Fax +62 21 3101007

Location
Kota adm. jakarta pusat,

Dki jakarta

INDONESIA