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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Zuriat CORD Buletin Palma

Ismail Maskromo

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Author-ID : 1455646

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education Library & Information Science

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Production Technology for Kopyor Coconut Seednuts and Seedlings in Indonesia Hengky Novarianto; Ismail Maskromo; Sudarsono
International Coconut Community Journal Vol 30 No 2 (2014): CORD
Publisher : International Coconut Community

Kopyor coconut is a naturally-occurring mutant having fluffy solid endosperm in stead of the normal one. Similar type of coconut has been found in several other Asian countries, with their distinct local names, such as Macapuno (Philippines), Makhrao Kathi (Thailand), Dikiri Pol (Sri Lanka), Thairu Thengai (India). It is a delicacy coconut to Indonesian and sells as much as ten times higher than normal coconut. In nature, three types of kopyor coconut exist in Indonesia: kopyor tall, kopyor dwarf, and kopyor hybrid. There are three kopyor dwarf varieties (‘Pati Kopyor Green Dwarf’, ‘Kopyor Yellow Dwarf’ and ‘Kopyor Brown Dwarf’) officially released, and one registered tall variety (‘Puan Kalianda Kopyor Tall’). In general, kopyor fruit yield under natural conditions is only < 25% of the total harvested fruits for both the tall and the dwarf types. Traditionally, Indonesian farmers harvest kopyor fruits at ten months after pollination while normal fruits at 11 months. They use the harvested normal fruits for propagation; but cannot guarantee whether or not they would produce korpyor fruit. Adoption of kopyor seedling production through embryo culture has been done. However, the seedling production is slow, while the price is very expensive, thus unaffordable to common farmers. Indonesian Palm Research Institute and Bogor Agricultural University have collaborated to develop alternative approaches to increase kopyor fruit production through the production of seedling that would ensure to produce korpyor fruit through control pollination. Initiated since 2010, the activities successfully overcome uncertainty in kopyor seedling production. Moreover, hybridization among local superior coconut varieties and known kopyor one have been done to broaden genetic background of kopyor trait and to develop breeding population for new kopyor varieties in the future. Overview and update of research progress on korpyor in Indonesia are presented in this paper.

Productivity of Three Dwarf Kopyor Coconut Varieties from Pati, Central Java, Indonesia Ismail Maskromo; Sudarsono
International Coconut Community Journal Vol 29 No 2 (2013): CORD
Publisher : International Coconut Community

Pati Dwarf Kopyor coconut originated from Pati, Central Java is one of the Kopyor coconut populations from Indonesia. Three varieties of Pati Dwarf Kopyor coconut, namely: Kopyor Green Dwarf, Kopyor Brown Dwarf and Kopyor Yellow Dwarf out of six potential varieties have been officially released as local superior varieties by the Minister of Agriculture, Republic of Indonesia at the end of 2010. The objectives of this research were to evaluate the stability of Kopyor fruit production among provenances of Pati Dwarf Kopyor coconuts. Evaluations were conducted especially for the three recently released varieties of Kopyor coconuts. Observations were carried out in 2011 and the collected data were then compared with Kopyor fruit production data collected in 2009 -2010. In three different locations, representatives of 10 Kopyor coconut provenances for each Kopyor variety were observed; therefore, a total of 90 trees were evaluated in this experiment. Observations were conducted for number of total bunches per palm, number of total fruits/per bunch, and the number of harvested Kopyor coconut fruits/per bunch. Three bunches were selected for each of the evaluated provenance. Results of the observation indicated that the observed yield and yield parameters of three Pati Dwarf Kopyor coconut varieties fluctuated by the year of observations. However, in general the observed yield and yield parameters among three varieties were similar. The average number of total bunches observed among three varieties evaluated ranged from 9.6-12.1 bunches per palm; the average number of fruits/per bunch ranged from 5.3-12.4; and the average number of harvested Kopyor fruits/per bunch ranged from 2.0-3.8. The estimated number of total fruits/palm/year among the three varieties ranged from 53.8-128.1 and the percentage of Kopyor fruit production observed among the three varieties evaluated ranged from 24.8-38.9 %. The estimated number of total harvested Kopyor fruits/palm/year ranged from 20.5-39.2, respectively. Rainfall pattern might affect directly or indirectly toward yield and yield components of three Pati Dwarf Kopyor coconut varieties.

Co-Authors Adhitya Yudha Pradhana Agus Purwito Asep Setiawan Budi Santosa Budi Santosa dan Sudarsono Dewi Sukma Donata S Pandin Donata S. Pandin Elsje T Tenda Elsje Tineke Tenda Engelbert Manaroinsong Hengky Novarianto Hengky Novarianto Jeanette Kumaunang Megayani Sri Rahayu Meity A Tulalo Meity Aneke Tulalo Meldy Hosang Nugroho Utomo Rindengan Barlina Steivie Karouw Sudarsono Sudarsono Sukmawati Mawardi Weda Makarti Mahayu YULIANUS R. MATANA

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