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Caraka Tani: Journal of Sustainable Agriculture
ISSN : 26139456     EISSN : 25992570     DOI : -
Core Subject : Agriculture,
Caraka Tani: Journal of Sustainable Agriculture publishes original articles, review articles, case studies and short communications on the fundamentals, applications and management of Sustainable Agriculture areas in collaboration with Indonesian Agrotechnology / Agroecotechnology Association (PAGI), Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network), and Indonesian Agricultural Higher Education Communication Forum (FKPTPI). This journal has two issues in a year and it will be published in April and October.
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Articles 1 Documents
Search results for , issue " Vol 29, No 2 (2014): October" : 1 Documents clear
PENINGKATAN RAGAM GENETIK ANGGREK Dendrobium spp MELAUI HIBRIDISASI UNTUK MENDUKUNG PERKEMBANGAN ANGGREK DI INDONESIA Hartati, Sri; Budiyono, Agus; Cahyono, Ongko
Caraka Tani: Journal of Sustainable Agriculture Vol 29, No 2 (2014): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.927 KB) | DOI: 10.20961/carakatani.v29i2.13394

Abstract

Perbaikan genetik melalui persilangan interspesifik antara tetua terpilih anggrek Dendrobium spp diarahkan untuk meningkatkan mutu genetik dan nilai ekonomi anggrek alam dipasaran. Anggrek Dendrobium adalah salah satu genus anggrek yang banyak diminati. Upaya peningkatan mutu genetik anggrek memiliki kendala pada teknik penyilangan dan perbanyakan biji hasil hibridisasi/persilangan. Penelitian bertujuan untuk: (1) mendapatkan teknik penyilangan yang dapat menghasilkan biji dengan tingkat fertilitas tinggi dan (2) mendapatkan anggrek hibrida baru yang memiliki keunggulankeunggulan karakter. Penelitian dilakukan di Pusat Konservasi Tumbuhan Kebon Raya LIPI Bogor. Persilangan dilakukan pada 4 sampai 6 individu yang berbunga. Persilangan dilakukan dengan cara menyilangkan tetua terpilih sebagai tetua jantan atau betina Pollinia ditransfer dari anther ke stigma dengan menggunakan tusuk gigi steril, dengan metode (i) crossing , (ii) Resiprocal.Pengamatan dilakukan terhadap karakter induk yang digunakan, waktu persilangan sampai dengan panen buah, dan lama berkecambah. Dari penelitian dihasilkan 4 seri silangan secara resiprok sampai perkecambahan yaitu ♀ Dendrobium mirbelianum x ♂ Dendrobium liniale, ♀ Dendrobium liniale x ♂ Dendrobium mirbelianum, ♀ Dendrobium liniale x Dendrobium bigibbum, ♀ Dendrobium bigibbum x ♂ Dendrobium liniale. Persentase keberhasilan semua persilangan dan resiproknya adalah 100% kecuali persilangan ♀ D.lineale x ♂D. tobaense dan resiproknya tingkat keberhasilannya 0%. Waktu terbentuk buah 3-9 hari, masaknya biji bervariasi antara 81-123 hari dan lama terbentuk protokorm bervariasi 15- 36 hari.

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