Hubungan Antar Karakter Vegetatif, Komponen Hasil, dan Daya Hasil Kopi Robusta Asal Sambung Tunas Plagiotrop

Enny Randriani, Dani Dani, Cici Tresniawati, Syafaruddin Syafaruddin

Abstract


Seleksi klon unggul kopi Robusta (Coffea canephora) biasanya memerlukan waktu yang lama sehingga diperlukan pendekatan-pendekatan yang mampu mempersingkat waktu. Tujuan dari penelitian ini adalah menganalisis korelasi antar karakter vegetatif, komponen hasil, dan daya hasil kopi Robusta hasil sambung tunas plagiotrop. Penelitian dilaksanakan di Desa Suka Rami, Kecamatan Bermani Ulu, Kabupaten Curup, Bengkulu dari bulan Januari sampai Desember 2012. Delapan karakter vegetatif, 13 karakter komponen hasil, dan dua karakter daya hasil diamati pada pertanaman kopi Robusta hasil sambung tunas plagiotrop umur tiga tahun. Korelasi antar karakter dan analisis faktor dilakukan menggunakan SPSS 11.5 for Windows. Hasil analisis menunjukkan bahwa karakter daya hasil (produksi buah dan produksi biji beras per pohon) kopi Robusta yang diperbanyak melalui sambung tunas plagiotrop memiliki hubungan yang positif secara kuat dengan lima karakter lainnya, yaitu jumlah cabang sekunder, bobot 100 buah, panjang biji gabah, panjang biji beras, dan bobot 100 biji beras. Oleh sebab itu, kelima karakter tersebut dapat dijadikan sebagai kriteria seleksi positif untuk produktivitas tinggi kopi Robusta yang dikembangkan melalui sambung tunas plagiotrop.

Kata kunci: Coffea canephora, seleksi klon, sambung pucuk, tunas plagiotrop

Selection of Robusta (Coffea canephora) elite clones usually takes a long time, therefore an effective approach is needed to shorten the time. The objective of this study was to analyze the correlation between the vegetative characters, yield and yield components of Robusta coffee derived from plagiotroph bud grafting. The research was conducted in the Suka Rami village, District of Bermani Ulu, Curup, Bengkulu Province from January to December 2012. Eight vegetative characters, 13 characters of yield components, and two yield characters were observed at three years old Robusta coffee plantation which derived from plagiotroph bud grafting. The correlation between the characters and factor analysis performed using SPSS 11.5 for Windows. The analysis showed that the character of the number of secondary branches, weight of 100 coffee fruits, long grain bean, long grain rice, and weight of 100 grains of bean showed a very strong positive correlation with yield characters. Thus, these five characters can be used as selection criteria to obtain superior genotypes of Robusta coffee that developed through plagiotroph bud grafting.


Keywords


Coffea canephora; clonal selection; grafting; plagiotrophic shoots

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DOI: http://dx.doi.org/10.21082/jtidp.v1n2.2014.p109-116

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 Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.


 

P-ISSN: 2356-1297
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Accredited No.30/E/KPT/2018 on Oktober 24, 2018 by Ministry of Research, Technology and Higher Education of the Republic of Indonesia

                    


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