Productivity of Three Dwarf Kopyor Coconut Varieties from Pati, Central Java, Indonesia

  • Ismail Maskromo
  • Sudarsono
Keywords: Exotic coconut, Endospem abnomally, Natural mutation, Fruit yield, Kopyor fruit yield, Rainfall yield

Abstract

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.

Author Biographies

Ismail Maskromo

Indonesian Palms Research Institute, Jl. Raya Mapanget, P.O. Box 1004, Manado, Indonesia

Sudarsono

Plant Molecular Breeding Laboratory,  Department of  Agronomy  and  Horticulture,  Faculty  of  Agriculture,

  Jl. Meranti-Darmaga Campus, IPB, Bogor 16680, Indonesia

References

Asmah N. 1999. Analisis protein spesifik sebagai penanda sifat Kopyor pada kelapa. Skripsi. Jurusan Kimia FMIPA. IPB. Bogor (in Indonesian with English abstract).
Akuba RH, N. Mashud, dan Miftahorracman. 2002. Identifikasi plasmanutfah kelapa potensial di Jawa Timur. Laporan Hasil Penelitian Balitka Manado (in Indonesian with English abstract).
Falconer DS. 1985. Introduction to Quantitative Genetics. Longman Publ. London and New York.
Mahmud Z. 2000. Petunjuk Teknis Budidaya Kelapa Kopyor. Departemen Kehutanan dan Perkebunan. Dirjen Perkebunan. Jakarta (in Indonesian).
Maskromo I. 2005. Kemiripan genetik populasi kelapa berbuah Kopyor berdasarkan karakter morfologi dan penanda DNA SSR (Simple Sequence Repeats) [thesis]. Bogor: Sekolah Pascasarjana. Institut Pertanian Bogor (in Indonesian with English abstract).
Maskromo I dan H. Novarianto. 2007. Potensi genetik kelapa Kopyor Genjah. Warta Penelitian dan Pengembangan Pertanian 29(1):3-5 (in Indonesian with English abstract).
Maskromo I, H. Novarianto dan Sudarsono. 2011. Fenologi pembungaan tiga varietas kelapa Genjah Kopyor Pati. Prosiding Seminar Nasional Perhimpunan Hortikultura Indonesia. Kerjasama PERHORTI, IPB dan Badan Litbang Pertanian, Kementerian Pertanian. Hal. 1001 -1009 (in Indonesian with English abstract).
Maskromo I, H. Novarianto, Dewi Sukma dan Sudarsono. 2012. Potensi hasil plasma nutfah kelapa Kopyor asal Kalianda , Pati, Sumenep dan Jember. Prosiding Seminar Nasional PERIPI Komda Jabar, Program Studi Pemuliaan Tanaman, Fakultas Pertanian Universitas Padjadjaran, Bandung. Hal 499 – 507 (in Indonesian with English abstract).
Mujer MV, DA. Ramirez and EMT. Mendoza. 1984. Coconut α-D-Galactosidase isoenzime: Isolation purification and characterization. Phytochemistry 23:1251-1254.
Naresh-Kumar, S. 2002. Agro-meteorology and drought management in coconut, In : Training Manual on Drought Stress and Its Management in Plantation Crops. Central Plantation Crops Research Institute, Kasaragod, India.
Perera PIP, V. Hocher, LK. Weerakoon, DMD. Yakandawala, SC. Fernando, and JL. Verdeil. 2010. Early inflorescence and floral development in Cocos nucifera L. (Arecaceae: Arecoideae). South African J. Bot. 76:482–492.
Rajagopal V., S. Shivashankar and J. Mathew. 1996. Impact of dry spells on the the ontogeny of coconut fruits and its relation to yield. Plantation Research and Development 3(4):251-255.
Rajagopal V., KV. Kasturi Bai and S. Naresh-Kumar. 2000. Drought management in plantation crops, pp. 30-35. In: Plantation Crops Research and Development in the New Millennium. Abstracts of PLACROSYM XV, 10-13 December 2002, Mysore, India.
Samonte LJ., EMT. Mendoza, LL. Ilag, ND. De La Cruz and DA. Ramirez. 1989. Galactomannan degrading enzyme in maturing normal and makapuno and germinating normal coconut endosperm. Phytochemistry 28:2269-2273.
Santos GA. 1999. Potential use of clonal propagation in coconut improvement program. In Oropeza C, JL. Verdiel, GR. Ashburner, R. Cardena, JM. Samantha (eds.) Current Advances in Coconut Biotechnology - Current Plant Science and Biotechnology in Agriculture. Kluwer Acad. Publ., London. pp. 419 – 430.
Santoso U., K. Kuno, T. Ota, T. Tadokoro and A. Maekawa. 1996. Nutrient composition of Kopyor coconut (Cocos nucifera L.). Food Chemistry 57 (2):299-204.
Sayeed P. M. 1955. Some observations on the shedding on buttons in the coconut. Indian Coconut J. 8:49.
Sudarsono, H. Novarianto, Sukendah dan I. Maskromo. 2011. Peningkatan persentase buah Kopyor (75%) melalui pemuliaan tanaman dan deteksi dini bibit kelapa Kopyor dengan marka molekuler. Laporan Hasil Penelitian KKP3T. Kerjasama Institut Pertanian Bogor dan Sekretariat Badan Penelitian dan Pengembangan Pertanian (in Indonesian with English abstract).
Sudarsono, Sudradjat, H. Novarianto, M.L.A. Hosang, D. Dinarti. M.S. Rahayu dan I. Maskromo. 2012. Produksi bibit Kopyor true to type dengan persilangan terkontrol dan peningkatan produksi buah Kopyor dengan polinator lebah madu. Laporan Hasil Penelitian Program HI-LINK. Institut Pertanian Bogor (in Indonesian with English abstract).
Sukendah, H. Volkaert and Sudarsono. 2009. Isolation and analysis of DNA fragment of genes related to Kopyor trait in coconut plant. Indonesian Journal of Biotechnology. 14(2):1169 -1178.
Published
2013-10-01
How to Cite
Ismail Maskromo, & Sudarsono. (2013). Productivity of Three Dwarf Kopyor Coconut Varieties from Pati, Central Java, Indonesia. CORD, 29(2), 10. https://doi.org/10.37833/cord.v29i2.86
Section
Articles