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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 5 Documents
 1 
Search results for , issue "Vol 12 No 01 (1996): CORD" : 5 Documents clear
COCONUT TAPPING IN THE PHILIPPINES ENIGMAS AND OBSERVATIONS Rebecco M. Santiago; Ma Solita J. Virtudazo
International Coconut Community Journal Vol 12 No 01 (1996): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v12i01.296

Abstract

Individual interviews were conducted to 24 purposively selected coconut tappers from Leyte, Samar and Cebu, Philippines to determine their tapping practices and observations and knowledge on certain phenomena exhibited by the tapped palm, as well as, the problems which confront them. Specifically, inquiries were focused on tree selection, spadix/inflorescence age appropriate for tapping, spadix preparation and stimulation, spadix care and maintenance, climatic considerations and relations, and temporary cessation of inflorescence production. Data revealed certain enigmatic phenomena and some inconsistencies to long‑held physiological facts. Moreover, respondents' observations strongly point out the toddy yield's extreme sensitivity to climatic and weather change which could be best validated by further coconut physiology research.
DIAGNOSIS AND RECOMMENDATION INTEGRATED SYSTEM (DRIS) A BETTER APPROACH TO COCONUT NUTRITION T.I. Mathewkutty; E. Tajuddin
International Coconut Community Journal Vol 12 No 01 (1996): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v12i01.297

Abstract

Coconut is grown in more than 90 countries in the world and India occupies the third position with an area of 1.63 million hectares and a production of 12355 million nuts [Anon(a)1993‑94]. The crop makes a significant contribution to the national economy to the extent of Rs. 4,000 crores with an annual export earning of Rs. 126 crores [Anon (b) 1993‑94] per year which is much below its potential of more than 100 nuts per palm per year. Lack of adequate and proper management of nutrients is one of the reasons for this low productivity.
NEW RECORD OF COCHLIOBOS HAWAIIENSIS ALCORN ASSOCIATED WITH BUTTON SHEDDING AND PREMATURE NUTFALL IN COCONUT IN INDIA A. Karthikeyan; R. BIL4SKARAN
International Coconut Community Journal Vol 12 No 01 (1996): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v12i01.298

Abstract

From the shed buttons and immature nuts of coconut, a jungus was isolated which on artificial inoculation in coconut bunches of varying ages caused button shedding and premature nutfall. The fungus was identified as Cochliobolus hawaiiensis Alcorn. Buttons up to 4 months age were susceptible to the fungus. Among the thirteen coconut genotypes studied, infection was high in Lakshadweep Micro, Lakshadweep Ordinary an d East Coast Tall x Malaysian Green Dwarf (ECT x MGD). Carboxin 75 WP (500 ppm and above), mancozeb and copper oxy chloride (1000 ppm and above) completely inhibited the mycelial growth of C hawaiiensis under in vitro conditions. In Vivo, mancozeb (0.2%) was very effective for the control of the disease.
SOME MISCELLANEOUS EXPERIMENTS WITH COCONUT EMBRYO CULTURE Roger Ashburner; D.R. Tomlinson; W.K. Thompson
International Coconut Community Journal Vol 12 No 01 (1996): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v12i01.299

Abstract

The growth and development of coconut embryo cultures can be manipulated by various methods, including the alteration of the carbon source in the basal medium. Shoot growth was favoured when glucose was used as the carbon source, but root growth was stimulated when sucrose was used at equimolar concentrations. Both fructose and glucose were found to, stimulate vitrification and mannitol was inert. BAP had no effect on the growth and development of coconut embryo cultures up to a level of 316 M. Ethylene and carbon dioxide built up in the culture flasks to biologically active concentrations but did not affect growth in the time period measured. The build‑up of these gases could be alleviated through altering the sealing mechanisms of the culture flasks. In vitro, coconut embryos germinate faster in sealed culture flasks and it is assumed that this is to do with the gaseous composition of the head­space. Genotype of the embryo has perhaps the greatest influence on coconut growth and development in vitro, with significant differences being found in the growth rates of the 10 Pacific genotypes tested. This issue should be taken into account when recommendations are made on the use of a general protocal for the use of coconut embryo culture for the collection and conservation of germplasm.
THE SPACING REQUIREMENT OF COCONUTS ON ATOLLS: RESULTS FROM FOUR SYSTEMATIC SPACING TRIALS IN KIRIBATI J. J. F. BARR; K. TREWREN
International Coconut Community Journal Vol 12 No 01 (1996): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v12i01.300

Abstract

Four systematic spacing trials were planted between 1969 and 1973 on three islands in the Republic of Kiribati which have contrasting regimes of rainfall, in order to investigate the spacing requirements of coconuts in relation to rainfall (under atoll conditions). Two of the trials are on Kiritimati, which has an annual average rainfall of only 870 mm; one is on Tarawa which receives 2043 mm, and the fourth is on Butaritari which receives 3185 mm. Three of the trials are in the form of an almost complete wheel, whilst the fourth consists off our fan-shaped sectors. The range of planting densities in all trials was from 126 to, 632palms per hectare, in 12 treatments. Due to discontinuity of staff only one of the trials on Kiritimati was recorded during the period in which the coconuts came into, bearing but this showed fairly clearly that there is a relationship between precocity and planting density, with the palms coming into production earlier at the wider spacing. During the period of maximum cropping of the palms the optimum planting density under conditions of 870 mm annual rainfall is outside of the range of densities covered by the trials, and somewhat less than 126 palms per hectare.

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