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All Journal HAYATI Journal of Biosciences Indonesian Journal of Agricultural Science Jurnal Penelitian dan Pengembangan Pertanian AGRICOLA
Aris Hairmansis
Balai Besar Penelitian Tanaman Padi
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Veterinary

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Perakitan dan pengembangan varietas unggul baru padi ....... Hairmansis, Aris; ., Supartopo
Jurnal Penelitian dan Pengembangan Pertanian Vol 31, No 1 (2012): Maret 2012
Publisher : Pusat Perpustakaan dan Penyebaran Teknologi Pertanian

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Abstract

Rendaman air merupakan salah satu faktor pembatas utama peningkatan produksi padi di lahan rawan banjir. Perubahan iklim global yang menyebabkan meningkatnya frekuensi banjir di berbagai wilayah dapat mengancam stabilitas produksi beras nasional. Salah satu strategi adaptasi untuk mengurangi dampak tersebut adalah dengan menanam varietas toleran rendaman air. Berkaitan dengan hal tersebut, Badan Litbang Pertanian bekerja sama dengan Lembaga Penelitian Padi Internasional (IRRI) di Filipina mengembangkan varietas unggul padi yang toleran terhadap rendaman penuh. Dua varietas unggul baru padi berhasil dilepas, yaitu Inpara 4 dan Inpara 5 yang mampu tumbuh dan berproduksi dengan baik meskipun terendam air penuh sampai dua minggu pada fase vegetatif. Kedua varietas tersebut dirakit dengan metode silang-balik dengan bantuan penanda molekuler terhadap tetua berulang yang merupakan varietas padi yang sangat populer. Inpara 4 memiliki latar belakang genetik varietas Swarna yang populer di Asia Selatan dan Inpara 5 memiliki latar belakang genetik varietas IR64 yang populer di Asia Tenggara, termasuk Indonesia. Rata-rata hasil gabah kedua varietas di daerah rawan banjir masing-masing adalah 4,69 dan 4,45 t/ha. Varietas Inpara 4 memiliki tekstur nasi pera, sedangkan Inpara 5 bertekstur pulen. Keduanya potensial untuk dikembangkan di daerah yang rawan terhadap rendaman akibat banjir, seperti lahan rawa lebak dangkal, lahan sawah bonorowo, dan lahan sawah di pesisir pantai.
CORRELATION ANALYSIS OF AGRONOMIC CHARACTERS AND GRAIN YIELD OF RICE FOR TIDAL SWAMP AREAS Hairmansis, Aris; Kustianto, Bambang; Suwarno, Suwarno
Indonesian Journal of Agricultural Science Vol 11, No 1 (2010): April 2010
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

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Abstract

Development of rice varieties for tidal swamp areas is emphasized on the improvement of rice yield potential in specific environment. However, grain yield is a complex trait and highly dependent on the other agronomic characters; while information related to the relationship between agronomic characters and grain yield in the breeding program particularly for tidal swamp areas is very limited. The objective of this study was to investigate relationship between agronomic characters and grain yield of rice as a basis for selection of high yielding rice varieties for tidal swamp areas. Agronomic characters and grain yield of nine advanced rice breeding lines and two rice varieties were evaluated in a series of experiments in tidal swamp areas, Karang Agung Ulu Village, Banyuasin, South Sumatra, for four cropping seasons in dry season (DS) 2005, wet season (WS) 2005/2006, DS 2006, and DS 2007. Result from path analysis revealed that the following characters had positive direct effect on grain yield, i.e. number of productive tillers per hill (p = 0.356), number of filled grains per panicle (p = 0.544), and spikelet fertility (p = 0.215). Plant height had negative direct effect (p = -0.332) on grain yield, while maturity, number of spikelets per panicle, and 1000-grain weight showed negligible effect on rice grain yield. Present study suggests that indirect selection of high yielding tidal swamp rice can be done by selecting breeding lines which have many product tive tillers, dense filled grains, and high spikelet fertility.
Biofortifikasi Untuk Peningkatan Keragaman Populasi Dasar Padi Gogo Beras Khusus Yullianida, Yullianida; Hermanasari, Rini; Lestari, Angelita Puji; Hairmansis, Aris
AGRICOLA Vol 11 No 2 (2021): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v11i2.3733

Abstract

Biofortification is a process of increasing the nutritional content of agricultural commodities to meet the preferences of consumers who in recent years have begun to tend to have a healthy lifestyle. Specialty rice can include aromatic rice, sticky rice, pigmented rice and nutritious rice (rice containing zinc, iron or high anthocyanin). The limited superior varieties of upland rice causes the need to increase genetic diversity through the formation of based populations with conventional crossing. The hybridization block and F1 planting were conducted at MT 1 2019 in Muara Experimental Station-ICRR, Bogor. Crossing parents consist of advanced lines, introduced lines, local varieties and national varieties. Development of upland rice based population in MT 1 2019 resulted 64 crossbreeding combinations and 41 crossbreeding combinations among them aimed at obtaining special quality upland rice consisting of 24 single crosses, eight back crosses, seven top crosses and two double crosses. Whereas for F1 planting, upland rice for MT 1 2019 consisted of 129 numbers and 53 of them aimed at good quality rice. Of the 53 F1 numbers, 42 numbers were selected, which continued to become the bastar population (F2) in MT 2 2019 with the modification-bulk selection method.
Genome-Wide SNP Discovery and Population Structure Analysis of 244 Indonesian Local Rice Accessions Satrio, Rizky Dwi; Fendiyanto, Miftahul Huda; Nugroho, Satya; Hairmansis, Aris; Miftahudin
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.142-152

Abstract

Single Nucleotide Polymorphism (SNP) markers are essential tools for the genetic management and breeding of rice, enabling precise characterization of genetic diversity. However, SNP datasets specifically developed for analyzing the population structure of Indonesian local rice remain limited. This study aimed to identify polymorphic SNP markers and analyze the lineage and population structure of 244 Indonesian local rice accessions. BAM files of these accessions were obtained from the 3K Rice Genome Project via the International Rice Informatics Consortium. High-quality SNPs were generated through variant calling and stringent filtering, followed by annotation and population analyses using IR64, DJ123, and Nipponbare as references. A total of 3,839,961 high-quality SNP loci were identified across the 12 rice chromosomes. Hierarchical clustering and principal coordinate analysis consistently grouped the accessions into three major clusters, corresponding to Indica, Japonica, and admixed groups. Population structure analysis confirmed two main subpopulations: Indica and Japonica, with Japonica further divided into Temperate and Tropical subgroups. Eleven accessions showed admixed ancestry. This study provides essential insights into the genetic diversity and population structure of Indonesian local rice, supporting genetic resource conservation, trait discovery, and breeding efforts.
Co-Authors Angelita Puji Lestari Bambang Kustianto Fendiyanto, Miftahul Huda Miftahudin Rini Hermanasari Satrio, Rizky Dwi Satya Nugroho Supartopo . Suwarno Suwarno YULLIANIDA YULLIANIDA