Keragaman Karakter Morfo-Agronomis Sumber Daya Genetik Kacang Tunggak (Vigna unguiculata [L.] Walp.) Koleksi Bank Gen BB Biogen

Mamik Setyowati, Hakim Kurniawan

Abstract


Kacang-kacangan potensial seperti kacang tunggak (Vigna unguiculata [L.] Walp.) merupakan sumber daya genetik (SDG) tanaman yang penting. Tanaman kacang tunggak memiliki sifat relatif  lebih tahan kering dibandingkan dengan kacang-kacangan yang lain. Karakterisasi SDG kacang tunggak telah dilakukan pada sebanyak 107 aksesi koleksi BB-Biogen. Karakterisasi dilakukan dengan tujuan untuk mengetahui aksesi-aksesi yang memiliki karakter baik yang dapat dijadikan sebagai sumber gen untuk merakit varietas unggul. Diketahui bahwa aksesi SDG kacang tunggak yang cepat dipanen yaitu aksesi KT-81, Kacang Tunggak 16, TVX-4667-010 dan TVX-2939-09D pada umur 59 hari. Jumlah gerombol polong tiap tanaman terbanyak dihasilkan oleh aksesi Kacang Dadap 125 dan Kacang Tunggak Hitam 24 sebanyak 8 klaster/tanaman. Ukuran butir terbesar dimiliki oleh aksesi Kacang Tunggak Hitam 13 (16,9 gram/100 butir) dan hasil biji tertinggi dihasilkan oleh aksesi Wajak 132 (104,9 gram/50 tanaman). Keragaman fenotipik koleksi SDG kacang tunggak relatif sempit, sehingga perlu dilakukan peningkatan keragaman SDG kacang tunggak baik melalui introduksi dan koleksi maupun persilangan

Keywords


kacang tunggak; karakterisasi; keragaman.

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References


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DOI: http://dx.doi.org/10.21082/blpn.v22n1.2016.p41-48

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