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All Journal Informatika Pertanian Jurnal Penelitian Pertanian Tanaman Pangan
Priyanto, Slamet Bambang
Balai Peneltian Tanaman Serealia
Agriculture, Biological Sciences & Forestry Computer Science & IT

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Estimasi Nilai Daya Gabung Inbrida Jagung Menggunakan Metode Line x Tester Priyanto, Slamet Bambang; Makkulawu, Andi Takdir`; Iriany, R Neni
Jurnal Penelitian Pertanian Tanaman Pangan Vol 3, No 2 (2019): Agustus 2019
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.293 KB) | DOI: 10.21082/jpptp.v3n2.2019.p83-90

Abstract

Informasi tentang daya gabung sangat penting dalam perakitan jagung hibrida. Salah satu metode pendugaan daya gabung adalah metode line x tester. Penelitian ini bertujuan untuk mengetahui daya gabung umum (DGU) dan daya gabung khusus (DGK) galur jagung. Percobaan dilaksanakan di Kebun Percobaan Bajeng Sulawesi Selatan pada bulan Agustus sampai November 2016. Bahan genetik yang digunakan adalah 60 hibrida hasil persilangan 30 galur S7 (G682-G711) dengan dua tester MR 14 dan N79. Perlakuan disusun dalam rancangan acak kelompok (RAK) dengan tiga ulangan. Karakter yang diamati adalah tinggi tanaman, tinggi letak tongkol, rendemen, kadar air, panjang dan diameter tongkol, jumlah baris per tongkol, jumlah biji per baris, bobot 1,000 biji, dan hasil biji pada kadar air 15%. Estimasi efek DGU line, DGU tester, dan DGK menggunakan perangkat lunak AGD-R (Analysis of Genetic Designs in R) Version 3.0. Hasil penelitian menunjukkan bahwa galur yang memiliki nilai DGU positif dan nyata pada karakter hasil biji adalah G682, G686, G695 dan G704. Nilai DGK positif dan nyata pada karakter hasil biji hanya terdapat pada satu pasangan persilangan yaitu G685 x N79. Kata kunci: daya gabung, jagung hibrida, metode line x tester
Parameter Genetik dan Daya Gabung Hasil dan Komponen Hasil Jagung pada Tiga Taraf Pemupukan N Priyanto, Slamet Bambang; Efendi, Roy; Azrai, Muhammad
Jurnal Penelitian Pertanian Tanaman Pangan Vol 5, No 1 (2021): April 2021
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v5n1.2021.p1-14

Abstract

Low maize yields due to low nitrogen generally occur on marginal land. Maize development in Indonesia is directed at marginal land due to limited fertile land, especially in other lands in Indonesia besides Java. Therefore, the assembly of low N tolerant maize varieties plays an important role in increasing production on marginal land. Therefore, the improvement of low N tolerant hybrid maize was required. Information on the combining ability of inbred lines was important in the hybrid maize breeding program. This research aims were to determine genetic parameters, general combining ability, specific combining ability of maize lines and at three levels of N fertilization. This research was conducted at the Bajeng Experimental farm South Sulawesi from August to November 2019. The research was arranged in a split-plot design with two replications. The main plots were three nitrogen levels i.e. 0 kg N/ha, 100 kg N/ha, 200 kg N/ha and the subplots were 36 hybrids formed from a half diallel cross and its parents. The results showed that compared to yield at 200 kg N/ha, yield at 100 kg N/ha and 0 kg N/ha reduced 18,80% and 38,69% respectively. ear number, ear weight, shelling percentage and number of seeds per row were controlled by non-additive genes, while moisture content, 100 seeds weight, ear length and number of rows per ear were controlled by additives gene. Lines AVLN 118-7 and AVLN 83-2 have good GCA for yield grain overall levels of fertilization. Crosses AVLN 83-2/AVLN 124-4, AVLN 83-2/AVLN 32-8, and AVLN 122-2/AVLN 124-9 have the good combining ability under both low and high N conditions. They could be used to develop low N tolerant varieties.
ANALISIS RAGAM GENETIK, HERITABILITAS, DAN SIDIK LINTAS KARAKTER AGRONOMIK JAGUNG HIBRIDA SILANG TUNGGAL Priyanto, Slamet Bambang; Azrai, Muhammad; Syakir, Muhammad
Informatika Pertanian Vol 27, No 1 (2018): Juni 2018
Publisher : Sekretariat Badan Penelitian dan Pengembangan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1327.217 KB) | DOI: 10.21082/ip.v27n1.2018.p1-8

Abstract

The success of selection in plant breeding program is determined by genetic variabiliities, heritability values and the correlation between agronomic characters and yield. The study aims to determine the genetic variability, heritability and the effec of agronomic characters to grain yield. The experiment was conducted in February to May 2016 in Grobogan, Central Java. The experiment consists of twelve genotypes of maize hybrids, arranged in a randomized block design with three replications. The characters observed were plant height, ear height, number of harvested ear, shelling percentage, moisture content of grain harvested, weight of 100 grains, ear length, ear diameter, number of rows per ear, number of seeds per row per ear, and grain yields. The results showed that the genetic variability of agronomic characters was broad, except ear diameter. Almost all of the heritability values of yield components were high, except harvested ear weight and ear diameter. The characters of plant height, ear height and as the genotypic gave high of a direct effect on the yield higher, while direct effect of the phenotypic character of ear hairves on grain yield are higher.
Co-Authors Azrai, Muhammad Azrai, Muhammad Efendi, Roy Iriany, R Neni Makkulawu, Andi Takdir` Syakir, Muhammad