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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 390 Documents
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FORECASTING THE CROP YIELD OF A COCONUT ESTATE T. S. G. Peiris
International Coconut Community Journal Vol 5 No 02 (1989): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v5i02.226

Abstract

Seasonal Autoregressive Integrated Moving Average (ARIMA) process of (0,1,2) x (0,1,1) x 6 that best fits a set of crop‑wise coconut yield data, in Bandirippuwa, Lunuwila is identified with­out using variance stabilization transformation. In this process the present value of the series may be described as a linear function of the past observation of the series and past disturbances. The physical factors such as rainfall, temperature, day length etc. are not required for this method, however the past crop figures in the estate is needed. While such model is useful for short term fore­casting, it also gives the upper and lower limits of the forecasts at a given probability. These intervals would provide the quantified information on the degree of duration of the forecasts.
IDENTIFICATION OF ROOT (WILT) DISEASED COCONUT PALMS BEFORE VISUAL SYMPTOM EXPRESSION V. Rajagoval; B. Sumathykuttyamma
International Coconut Community Journal Vol 5 No 02 (1989): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v5i02.227

Abstract

Determination of stomatal resistance (rs) and leaf water potential (ψ) were employed as techniques to distinguish coconut palms (Cocos nucifera L.) devoid of foliar symptoms ('apparently healthy') from those with symptorns of wilt disease viz. flaccidity, yellowing and necrosis ('wilt diseased'). Infected palms are characterized by low stomatal diffusive resistance and reduction in leaf water potential. Among the apparently healthy palms, some exhibited high rs and high ψ, characteristic of truly healthy palms, while others had the trend similar to the 'wilt' diseased palms. The latter group of palms was considered as disease 'suspects' and was closely monitored for the symptom expression. In about 10 to 14 months, all the palms 'suspected' to be diseased had the visual symptoms of the disease.
INTEGRATION OF PASTURE, FODDER AND CATTLE IN COCONUT SMALL HOLDINGS L V K Liyanage; H P S Jayasundera; D T Mathes; D N S Fernando
International Coconut Community Journal Vol 5 No 02 (1989): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v5i02.228

Abstract

A farming system was established in a 45 year old coconut plantation at Rathmalagara Estate, Madampe, in the North Western Province of Sri Lanka. The main objective of this study was to evaluate the performance of an integrated farming system in relation to coconut production and productivity of land. Results inclicate that there has been no adverse effect on coconut and copra production clue to the establishment of the integrated system. The substitution of inorganic fertilizer mainly nitrogen and partly phosphorus and potassium through the integration of animals, fodder and pasture system did not affect the critical levels of nutrients in coconut leaves of treatment plots. Furthermore, feed supply through pasture/fodder in the system was adequate for cattle throughout. In terms of animal perfor­mance the average live weight gains were 306 g/head/day at the end of the first year. The most remarkable feature was that the integrated system reduced the cost of inorganic fertilizer for coconut by 69%, thus reducing the cost of production of coconut. Based on the overall results it is suggested that the integrated system is more productive and beneficial than a monoculture system to coconut small holdings.
STATUS OF COCONUT RESEARCH, DEVELOPMENT AND UTILIZATION IN TANZANIA E. N. BALINGASA
International Coconut Community Journal Vol 5 No 02 (1989): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v5i02.229

Abstract

Coconut is an important economic crop in the coastal belt of Tanzania and the island. However, production has been dwindling through the years due to various constraints, eg, poor plantation management, lack of improved planting materials, insect pests ‑ notably Oryctes monoceros Oliv, and the coreid bug, Pseuclotheraptus wayi Brown plus a lethaf‑disease presently belie to be caused by mycoplasmalike organisms. To offset further decline of the industry, the National Coconut Development Programme was created by the Ministry of Agriculture and Livestock Development, assisted by the Federal Republic of Germany and the World Bank. Production promotion activities were implemented ‑ conducting selection works on the East African Tall coconut population, establishment of seed gardens to produce high yielding planting materials and supporting extension to disserninate technical information. Simultaneously, researches in agronomy, breeding, pest and disease control were conducted. Lately, farming systems research was added as a new project component. Significant findings on the various research areas are discussed in this paper plus some aspects of utilization, processing and marketing.
THE BATCH CARBONISATION OF COCONUT SHELL WITH WASTE HEAT RECOVERY G R Breag; H C Coote; A C Hollingdale
International Coconut Community Journal Vol 5 No 02 (1989): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v5i02.230

Abstract

Technology developed by ODNRI for waste heat recovery during carbonisation of coconut shell has been succesfully adopted by the desiccated coconut industry in Sri Lanka. The initial development and design of the unit has been described elsewhere (Breag et al, 1984) and also the broader issues of the technology in relation to the Sri Lankan coconut industry have been examined (Breag et al. 1985). In the five year period since the first prototype trial was carried out, the Coconut Development Authority, Sri Lanka assisted by ODNRI, has disserninated knowledge of the techno­logy and promoted manufacture of the equipment. At this time there are 15 units installed of the basic 8M3 capacity system and a prototype 16m3 capacity unit has been commissioned recently. The units are manufactured by a number of local companies and are now being supplied to mill owners on a purely commercial basis. This paper provides a cost benefit financial analysis for the standard 8m3 capacity unit using the data acquired from accumulated,operating experience.
VILLAGE LEVEL ENERGY UTILIZATION OF COPRA PRODUCTION BY PRODUCTS IN EASTERN VISAYAS, PHILIPPINES Engr. Eutiquio E. Sudaria
International Coconut Community Journal Vol 5 No 02 (1989): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v5i02.231

Abstract

Coconut is one of the important crops of the farmers in Eastern Visayas. Forty‑two percent of the agricultural land of Eastern Visayas is planted to coconut. Coconut farmers are earning money mainly from the main product of coconut which is copra. The price of copra is fluctuating. Hence, there is a need for the farmers to utilize the by‑products of copra production to augment their income. The by‑products depend on the copra making practice of the farmers. For the direct splitting method where the nut with husk is split directly with an axe, combined husk with shell locally known as "binuongan" or "bukong" and water are the by‑products while the husking method has the by­products of separate husk, shell, and water. This paper covers only the utilization of the "binuongan", husk and shell. The water is excluded. Paper also describes the utilization of copra making by‑products practiced by farmers and developed at the Regional Coconut Research Center, VISCA, Baybay, Leyte.
DETAILED ANALYSIS OF 30 FERTELIZER DEMONSTRATIONS IN SOUTHERN THAILAND J. Dootson; J.R.J. Moss; Sura Rungreung; Saowannee Meemuth; K. Ryder; Maliwan Rattanapruk
International Coconut Community Journal Vol 6 No 01 (1990): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v6i01.232

Abstract

Twice‑yearly coconut counts taken from 30 different demonstra­tions on Thai Tall palms showed that applying fertilizer increased the number of nuts produced over the 3 years studied. Application of 2kg of a 13:13:21 NPK compound was ‑shown to be more cost effective than applying 4kg of the same compound, but was rarely profitable, as the largest responses occurred in years when yields were high and the farm­gate prices were at their lowest. Sites where nut counts from unfertilized plots were high showed much smaller responses to applied fertilizer than those having lower counts, suggesting that inherently low yielding plots are more likely to respond to applied fertilizer. Nut counts can be considered a simple, cheap and reliable method of anticipating the probability of a fertilizer response.
FLOWERING AND YIELD CHARACTERISTICS OF MACAPUNO BEARING DWARF X TALL COCONUT HYBRIDS T. C. Nunez; V. M. de Paz
International Coconut Community Journal Vol 6 No 01 (1990): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v6i01.233

Abstract

Three macapuno‑bearing dwarf x tall coconut hybrid trees were observed to exhibit some characteristics influenced by the dwarf female parents. Flowering started as early as 39 to 57 months after planting. Intraspadix overlapping of 43 to 100% was also recorded suggesting moderate to high degree of self pollination. Macapuno yield ranged from 0‑50% per bunch. The nuts resem­ble the female parents in form but were generally heavier. They were all classified as type l macapuno. Binomial test showed goodness of fit to 3:1 ratio of normal to macapuno nuts.
PERFORMANCE OF COCONUT TIMBER UNDER FIELD AND SERVICE CONDITIONS R.N. Palomar; V.K. Sulc
International Coconut Community Journal Vol 6 No 01 (1990): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v6i01.235

Abstract

Approximately 3.4 million hectares of coconut plantation arc spread ail over the coconut producing provinces in the Philippines. Of these, 50% arc found in Mindanao, 21.l % in the Visayas and 28.9% in Luzon including the Southern Tagalog and Bicol regions (PCA Annual Report, 1986). It has been estimated that 30% of the area planted to coconut arc 60 years old and over. These coconut stands are considered unproductive and should be replanted with improved and high‑yielding coconut varieties.
THE CHLORINE NEEDS OF COCONUTS S.S. Magat; R.Z. Margate
International Coconut Community Journal Vol 6 No 01 (1990): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v6i01.236

Abstract

A study designed to determine the nutritional needs of coconut from nursery to full‑bearing was conducted from 1974 to 1988 in a Cl-­deficient soil (Topic Tropudalf) of Davao, Southern Philippines. At nursery stage, only chlorine application improved the growth of the seedlings based on girth size which was highly correlated with increased leaf Cl. During the first five years in the field, K and Cl significantly influenced the growth of the palms which were positively correlated to ail growth parameters, i.e. girth, number of leaflets, living fronds and leaf production. During the fifth year, Cl‑fertilization resul­ted in 115% more flowering palms than the unfertilized ones. From then on, Cl application consistently increased nut production, copra weight per nut and copra yield per tree which was correlated with leaf Cl. However, the positive effects of other nutrients like N, K and Mg on yield as well as interaction effects were inconsistent over the years. The nutritional needs of palms for Cl at the nursery stage is 30 g Cl per seedling. Under field condition, the requirement increases with age from 40 g to 1,000 g per palm leveling off at fifth year from planting.

Page 26 of 39 | Total Record : 390

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