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VARIASI GENETIK DAN HERITABILITAS SEPULUH GENOTIPE PADI

Tumewu, Deizy and Mandang, J. Polii and Pinaria, Arthur (2008) VARIASI GENETIK DAN HERITABILITAS SEPULUH GENOTIPE PADI. Eugenia , 19 (1). pp. 70-76. ISSN 0854-0276

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        Abstract

        ABSTRACT The research aimed to asses the genetic variation and heritability of the ten rice genotypes characteristies. The research was conducted at the green house Faculty of Agriculture, Sam Ratulangi University since October 2010 until February 2011. Randomized Blok Design used of ten treatments, in three times replications. The observed variables were: plant heights (cm) at the harvest time, number of total tillers per cluster, number of productive tillers per cluster, plant ages (days) at the harvest time, number of empty grain per panicle, number of contained grain per panicle and panicle length (cm). The results showed that some characters, i.e: plant heights (cm) at the harvest time, number of contained-grain per panicle have a wide range of genetic variation. Plant height (cm) at the harvest time, number of contained grain per panicle, and panicle heights (cm) were categorized high in heritability. However, some characters, i.e: total number of tillers per cluster, number of productive tillers per cluster, plant ages (days) at the harvest time, number of empty grain per panicle were classified low heritability. The further selection process would be applied on plant heights and number of contained-grain. These results could be used in further program. Keywords: genetic variation, heritability, rice, genotype ABSTRAK Penelitian ini bertujuan untuk mengetahui variasi genetik dan heritabilitas beberapa karakter dari sepuluh genotipe padi yang dilakukan di rumah kaca Fakultas Pertanian Universitas Sam Ratulangi Manado mulai bulan oktober 2010 sampai dengan bulan Februari 2011. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan sepuluh genotipe sebagai perlakuan dan diulang tiga kali. Variable pengamatan adalah tinggi tanaman (cm) saat panen, jumlah anakan total per rumpun, jumlah anakan produktif per rumpun, umur tanaman saat panen, jumlah gabah hampa per malai, jumlah gabah berisi per malai dan panjang malai. Hasil penelitian menunjukkan karakter-karakter tinggi tanaman (cm) pada saat panen dan jumlah gabah berisi per malai mempunyai variasi genetik luas. Heritabilitas tinggi terdapat pada karakter-karakter tinggi tanaman (cm) pada saat panen, jumlah gabah berisi per malai dan panjang malai. Karakter-karakter dengan heritabilitas rendah adalah jumlah anakan total per rumpun, jumlah anakan produktif per rumpun, umur tanaman (hari) saat panen dan jumlah butir hampa per malai. Proses seleksi selanjutnya dapat dilakukan pada karakter tinggi tanaman dan jumlah butir berisi. Dan hasil penelitian terhadap karakter-karakter tersebut dapat digunakan untuk program pemuliaan selanjutnya. Kata kunci: variasi genetic, heritabilitas, padi, genotipe

        Item Type: Article
        Subjects: S Agriculture > S Agriculture (General)
        Divisions: Fakultas Pertanian > Agroekoteknologi
        Depositing User: Mr. Benhard W. Tampangela, ST
        Date Deposited: 10 Dec 2019 10:53
        Last Modified: 04 Oct 2020 21:57
        URI: http://repo.unsrat.ac.id/id/eprint/2509

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