Xenia Negatively Affecting Kopyor Nut Yield in Kalianda Tall Kopyor and Pati Dwarf Kopyor Coconuts

 

ABSTRACT

 

Xenia is a phenomenon usually associated with phenotype characters controlled by a single recessive gene. The genotype of pollen donor directly determines the phenotype of fruits or seeds harvested from female recipients. Kopyor coconut is a unique coconut mutant and its formation is an example of xenia, since the genotype of the pollen donor determines the phenotype of the harvested nuts. The objectives of this research were to evaluate xenia in two types of kopyor coconuts (i.e. Kalianda Kopyor Tall and Pati Kopyor Dwarf), determine effects of homozygous KK normal and heterozygous Kk Kopyor coconut ratio, and effects of homozygous KK normal coconuts removal from mix population on yield of Kopyor nuts.

For Kalianda Tall Kopyor coconut, field observations were conducted at three kopyor coconut plantations in Kalianda district, Lampung Selatan, Lampung-Indonesia while observations of Pati Dwarf Kopyor were conducted at Tayu district, Pati, Central Java-Indonesia. In both regions, coconut provenances were mapped using GPS and sub-samples were taken based on determined criteria. For each sampled tree, observations were recorded for the following variables: nut yield and yield components. The quantitative data were subjected to t-test statistical analysis to evaluate the significant differences among the observed parameters. Results of this experiment showed the presence of more homozygous KK normal coconuts among provenances of Kalianda Tall heterozygous Kk Kopyor coconut resulted in lower harvested kopyor nuts than the expected value. Moreover, removal of homozygous KK normal coconuts from a mixed coconut population increased yield of kopyor nuts. Those results indicated xenia occurred in both Kalianda Tall and Pati Dwarf Kopyor coconuts and it negatively affected the kopyor nut yield.

Keywords: Coconut mutant; Endosperm abnormality; Kopyor endosperm; Pollen donor; Recessive gene


Here is how to cite this publication:

Maskromo Ismail, Larekeng Siti Halimah, Novarianto Hengky, Sudarsono Sudarsono. 2016. Xenia Negatively Affecting Kopyor Nut Yield in Kalianda Tall Kopyor and Pati Dwarf Kopyor Coconuts. Emirate Journal of Food and Agriculture (EJFA) 28(9):644-652.

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Link untuk versi pdf dari publikasi ada di [The link to Pdf copy of the publication is] : Ismail Maskromo Xenia in Covonut – EJFA 2016

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References

Disbun-Lampung-Selatan. 2011. Laporan Tahunan (Annual Report) Dinas Perkebunan Kabupaten Lampung Selatan, Dinas Perkebunan, Lampung Selatan, Lampung.

Dishutbun-Pati. D. 2004. Selayang Pandang Komoditi Kelapa Kopyor di Kabupaten Pati. Dinas Kehutanan dan Perkebunan Kabupaten Pati, Jawa Tengah.

Faraq, K. M., A. S. Elsabagh and H. A. Elashry. 2012. Fruit characteristics of “Zaghloul” date palm in relation to metaxenic influence of used pollinator. Am. Euras. J. Agric. Environ. Sci. 12(7): 842-855.

Larekeng, S. H., I. Maskromo, A. Purwito, N. A. Matjik dan S. Sudarsono. 2015. Pollen dispersal and pollination pattern studies in pati kopyor coconut using molecular markers. Int. J. Coconut Res. Dev. (CORD). 31(1): 46-60.

Mashud, N. 2013. Efek zat pengatur tumbuh BAP terhadap pertumbuhan planlet kelapa Genjah kopyor yang dibelah. Bull. Palma. 14(2): 82-87.

Maskromo, I., N. Mashud, H. Novarianto. 2007. Potensi pengembangan kelapa kopyor di Indonesia. Warta Penelitian dan Pengembangan Pertanian. 13(1): 4-6.

Maskromo, I., H. Novarianto, D. Sukma, and Sudarsono. 2011. Potensi hasil plasma nutfah kelapa Kopyor asal Kalianda, Pati, Sumenep dan Jember. In: Prosiding Seminar Nasional Pemanfaatan Sumberdaya Genetik (SDG) Lokal Mendukung Industri Perbenihan Nasional. Penerbit Universitas Padjajaran, Bandung, Hlm, 499-506.

Maskromo, I., H. Novarianto, Sukendah, D. Sukma and Sudarsono. 2013. Productivity of three Dwarf kopyor coconut varieties from Pati, Central Java, Indonesia. Int. J. Coconut Res. Dev. (CORD) 29(2): 19-28.

Maskromo, I., H. Novarianto, Sukendah, D. Sukma dan S. Sudarsono. 2014. Keragaman komponen buah dan kualitas endosperma
kelapa dalam kopyor Kalianda dan kelapa Genjah kopyor Pati. Bul. Palma. 15(2): 102-109.

Maskromo, I., E. T. Tenda, M. A. Tulalo, H. Novarianto, D. Sukma, Sukendah and Sudarsono. 2015. Keragaman fenotipe dan genetik tiga varietas kelapa genjah Kopyor asal Pati, Jawa Tengah. J. Littri. 21(1): 1-8.

Marshal, T. C., J. Slate, L. E. B. Krilek and J. M. Pemberton. 1998. Statistical confidence for likely-hood based paternity inference in nature populations. Mol Ecol. 7: 639-655.

Novarianto H. and A. A. Lolong. 2012. Peningkatan persentase buah kelapa kopyor melalui penyerbukan sendiri. Bul. Palma. 13(1): 7-16.

Novarianto, H., I. Maskromo, D. Dinarti and Sudarsono. 2014. Production techology for coconut seednuts and seedlings in Indonesia. Int. J. Coconut Res. Dev. (CORD) 30(2): 31-40.

Olfati, J. A., Z. Sheykhtaher, R. Qamgosar, A. K. Sabet, G. H. Peyvast, H. Samizadeh and B. Rabiee. 2010. Xenia and metaxenia on cucumber fruit and seed characteristics. Int. J. Veg. Sci. 16: 243-252.

Satyabalan, K. 1995. Xenia effect and hybrid vigor in coconuts. Int. J. Coconut Res. Dev. (CORD). 11(1): 41-47.

Stewart-Cox, J. A., N. F. Britton and M. Mogie. 2004. Endosperm triploidy has a selective advantage during ongoing parental conflict by imprinting. Proc. Royal Society B. Biol. Sci. 271.1549: 1737-1743.

Sudarsono, H. Novarianto, M. L. A. Hossang, D. Dinarti, Yuliasti, D. Sukma, and I. Maskromo. 2013. Produksi bibit kelapa kopyor true to type dengan persilangan terkontrol dan peningkatan produksi buah kelapa kopyor dengan polinator lebah madu. Laporan Tahunan (Annual Report) – Program Hi-Link Kelapa Kopyor. Institut Pertanian Bogor, Bogor, Indonesia.

Sudarsono, S., H. Novarianto, M. L. A. Hosang, D. Dinarti, D. Yuliasti and S. D. I. Maskromo. 2015. Pendekatan genomik dan molekuler untuk pengembangan kultivar unggul kelapa eksotik asal Indonesia, penyediaan bibit dan pengendalian hamanya. Laporan Tahunan (Annual Report) – Program KKP3N Kelapa Kopyor. Institut Pertanian Bogor, Bogor, Indonesia.

Sukendah, I.N. Djajanegara and Makhziah. 2006. Protokol kultur embryo sigotik kelapa kopyor. J. Sains Teknol. Indones. 8(1): 15-20.

Sukendah, Sudarsono, Witjaksono dan N. Khumaida. 2008. Perbaikan teknik kultur embryo (Cocos nucifera L.) asal Sumenep Jawa Timur melalui penambahan bahan aditif dan pengujian periode sub-kultur. Bul. Agron. 36(1): 16-23.

Sukendah, S., H. Volkaert and S. Sudarsono. 2009. Isolation and analysis of DNA fragment of genes related to ‘Kopyor’ trait in coconut plant. Indones. J. Biotechnol. 14(2): 1169-1178.

Viorica, U. and B. Dorina. 2013. Data on pollen-mediated gene flow from genetically modified maize to conventional maize under simultaneous sowing conditions. J. Hortic. Forest. Biotechnol. 17(4): 90-94.

 

About PMB Lab: Prof. Sudarsono

This blog is dedicated as a communication media among alumni associated with PMB Lab, Dept. of Agronomy and Horticulture, Fac. of Agriculture, IPB, Bogor – Indonesia. It contains various information related to alumni activities, PMB Lab’s on going activities and other related matters.
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