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Keragaan Agronomi dan Potensi Hasil Genotipe Jagung (Zea mays L.) Generasi S1 dan S2 di Dua Lokasi Salamah, Umi; Suwarno, Willy Bayuardi; Aswidinnoor, Hajrial; Nindita, dan Anggi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 45 No. 2 (2017): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (297.691 KB) | DOI: 10.24831/jai.v45i2.13156

Abstract

Hybrid maize breeding relies on the availability of good performing inbred lines with superior combining ability. The objectives of this study were to: (1) estimate genetic paramters and heritability for agronomic and yield traits, (2) estimate correlations among traits, and (3) estimate selection-balanced inbreeding depression level from S1 to S2 generations. The S1 trial was planted from June to September 2014 at two locations, followed by the S2 trial from January to May 2015 at the same locations. Each trials was arranged in an augmented design with three blocks consisting of 72 unreplicated test genotypes, 3 unreplicated inbred lines, and 5 replicated commercial hybrid varieties as checks. The results showed that the heritability estimates were medium to high for most observed traits. Best yielding genotypes in S1 and S2 generations were derived from P27xNK6326, Pertiwi3xP31, NK6326xP31, P31xNK6326, and P31xNK33 populations. Grain yield was positively correlated with plant height, ear height, ear length, and ear diameter in S1 and S2 generations. The S2 generation exhibited inbreeding depression for grain yield. The estimates of heritability, correlations, and inbreeding depression obtained from this study could be useful for selection in corn breeding programs.Keywords: correlation, heritability, inbreeding depression
Analisis Genetik Arsitektur Malai Padi Menggunakan Dua Populasi F2 Ramadhan, Fitrah; Bayuardi Suwarno, Willy; Nindita, Anggi; Aswidinnoor, dan Hajrial
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 46 No. 1 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (727.129 KB) | DOI: 10.24831/jai.v46i1.17265

Abstract

Improvement of rice panicle architecture is one important objective in the development of improved new-plant-type rice varieties. Panicle architecture is directly related to yield components in rice. The aims of this study were to obtain information on inheritance pattern of panicle architecture on F2 generation and to obtain the best selected individuals. The experiment was conducted at Sawah Baru Experimental Farm Bogor, from May to October 2016. Two F2 populations derived from crosses of IPB 3S/IPB160-F-36, IPB160-F-36/IPB 5R and three genotypes of parents were used as experimental materials. A total of 208 and 204 plant samples were taken representing each of the two F2 populations and 20 plants representing the parents. Three panicles were taken randomly from each individual as observed samples. The results showed that additive gene action influenced number of primary branches in population of IPB 3S/IPB160-F-36, whereas in the population of IPB160-F-36/IPB 5R, most of the panicle architecture traits were controlled by additive gene action except for the length of primary branches. All of panicle architecture traits were controlled by relatively many genes except length of primary branches and number of grains on primary branches in the IPB 3S/IPB160-F-36 population. The panicle architecture of the two observed population was genetically varies. The heritability estimates were moderate to high. Selection could increase the mean of panicle architecture traits using either single or multiple traits simultaneously.Keywords: gene action, heritability, genetic variability, panicle traits
Skrining Awal Toleransi Galur-galur Dihaploid Padi Gogo terhadap Cekaman Kekeringan pada Stadia Bibit Kartina, Nita; Purwoko, Bambang Sapta; Dewi, Iswari Saraswati; Wirnas, Desta; Nindita, dan Anggi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 1 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.62 KB) | DOI: 10.24831/jai.v47i1.22766

Abstract

Development of doubled haploid lines of upland rice through anther culture is one way to obtain superior upland rice varieties tolerant to drought. The objectives of this research were to determine the response of doubled haploid lines to drought stress at seedling stage and to select tolerant doubled haploid lines. The research was conducted at a screenhouse of Muara Research Station, Indonesia Center of Rice Research (ICRR) from November to December 2017. Fourteen doubled haploid lines and 4 check varieties, namely Inpago 10 and Limboto, Salumpikit (drought tolerant check) and IR 20 (drought sensitive check) were used in this study. The experiment was arranged in a randomized complete block design with three replications. The observations were conducted on leaf rolling, leaf drought, and recovery ability. Based on Friedman nonparametric analysis, HR-5-7-1-1 and HR-7-15-2-1 had moderate response with estimated median values for leaf rolling of 3.44 and 3.00, respectively. Three doubled haploid lines namely HR-2-27-2-7, HR-2-34-1-3 and HR-7-15-2-1 had moderate response to drought with estimated median value of leaf drought of 3.56. Nine lines of doubled haploid had tolerant response with estimated median value of recovery ability of 1.00-1.56. Based on weighted selection index, nine doubled haploid lines with positive and high selection index were identified; however, only two lines (HR-7-15-2-1 and B3-2) had selection index higher than Inpago 10 and Limboto.Keywords: drought tolerance, leaf rolling, recovery, weighted selection index
Interaksi Genotipe x Lingkungan pada Morfologi Malai Galur-galur Padi (Oryza sativa L.) Bermalai Lebat Jayaningsih, Elvita Dwi; Suwarno, Willy Bayuardi; Nindita, Anggi; Aswidinnoor, Hajrial
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 3 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (719.498 KB) | DOI: 10.24831/jai.v47i3.26104

Abstract

Breeding rice for heavy panicle is prospective to improve production. However, the information on genotype x environment interaction (GxE) of rice panicle morphology is limited. This study was aimed to evaluate the GxE interaction on panicle morphology of heavy panicle rice (Oryza sativa L.) genotypes. The experiments were conducted in four environmental conditions. The research was conducted from December 2017 to May 2019 at the Department of Agronomy and Horticulture, IPB University, using 24 genotypes (F5-F6 generation) with 6 check varieties. The experimental design was an augmented design (3 replicates of check). Analysis of variance showed that GxE interaction effects were significant on the panicle length, number of axis nodes, primary branches number, secondary branches number, tertiary branches number, number of grains per panicle, and grain density per primary branch. The results showed that the two environments in the rainy season produced higher primary branches number, secondary branches number, tertiary branches number, number of grain per panicle, and grain density per primary branch than the two environments in the dry season. Correlation and path analyses showed that panicle length, number of secondary branches, and grain density per primary branch had a significant and direct positive effect on the number of grains per panicle. Keywords: primary branches, panicle length, secondary branches, tertiary branches
Pertumbuhan dan Produksi Tanaman Jagung Manis (Zea mays var. Saccharata Sturt.) pada Berbagai Dosis Pupuk Majemuk NPK+Mg (8-9-39+3) Nindita, Anggi; Ikhsan, Latif Hidayatul; Suwarto, Suwarto
Buletin Agrohorti Vol. 12 No. 2 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i2.56677

Abstract

Jagung manis adalah komoditas sayuran yang banyak dikonsumsi di masyarakat Indonesia. Tujuan dari penelitian ini adalah untuk mempelajari respons pertumbuhan dan perkembangan tanaman jagung manis terhadap perbedaan dosis pupuk majemuk NPK+Mg (8-9-39+3). Penelitian dilakukan di Kebun Percobaan Sabisa Sindangbarang, Kabupaten Bogor, Jawa Barat. Percobaan ini menggunakan rancangan kelompok lengkap teracak (RKLT) dengan faktor tunggal yaitu dosis pemberian pupuk. Perlakuan disusun dalam 6 taraf aplikasi yaitu: (1) tanpa pemberian pupuk yang diuji (kontrol), (2) pupuk NPK standar sebagai pembanding (NPK standar), (3) 0.5 dosis pupuk uji (0.5 NPK), (4) 0.75 dosis pupuk uji (0.75 NPK), (5) 1.0 dosis pupuk uji (1.0 NPK), (6) 1.5 dosis pupuk uji (1.5 NPK). Dosis pupuk NPK standar yaitu 300 kg urea, 200 kg SP36, dan 200 kg KCl hektar-1 dan dosis 1.0 NPK yaitu 245 kg urea, 123 kg SP36, dan 80 kg KCl. Percobaan dilakukan dengan empat ulangan sehingga terdapat 24 satuan percobaan. Hasil penelitian menunjukkan bahwa perlakuan aplikasi 0.75 dan 1.50 dosis pupuk NPK+Mg (8-9-39+3) secara umum menghasilkan tinggi tanaman, jumlah daun, diameter batang, bobot tongkol berkelobot, produksi serta produktivitas yang secara statistik lebih tinggi terhadap perlakuan kontrol. Taraf aplikasi pupuk NPK+Mg 0.75–1.50 dosis memiliki nilai Relative Agronomic Effectiveness yang memenuhi persyaratan lulus uji efektivitas pupuk, dengan nilai Relative Agronomic Effectiveness tertinggi didapatkan pada pengaplikasian 0.75 dan 1.50 dosis pupuk NPK+Mg (8-9-39+3) sebesar 139.81 %. Kata kunci: efektivitas pupuk, magnesium, produktivitas, pupuk NPK
Aplikasi GA3 dan Kinetin untuk Mengurangi Kesenjangan Hasil Cabai Katokkon (Capsicum annuum L. var. chinense) Azwar, Rani Azkiyah; Santosa, Edi; Sjahril, Rinaldi; Nindita, Anggi
Buletin Agrohorti Vol. 13 No. 3 (2025): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/

Abstract

Produktivitas cabai katokkon perlu ditingkatkan untuk menekan fluktuasi harga cabai rawit, terutama di dataran rendah. Penelitian ini bertujuan mengevaluasi pemberian GA3 dan kinetin terhadap pertumbuhan dan hasil cabai katokkon. Percobaan dilaksanakan pada bulan Oktober 2023 hingga Mei 2024 di Kebun Percobaan Leuwikopo, IPB Darmaga, Bogor. Penelitian menggunakan rancangan acak kelompok dua faktor zat pengatur tumbuh (ZPT) yaitu GA3 (0, 100, 200 ppm) dan kinetin (0, 100, 200 ppm). ZPT diaplikasikan melalui semprot daun pada umur 30, 40, dan 50 hari setelah tanam. Hasil penelitian menunjukkan bahwa kinetin 100 ppm meningkatkan jumlah cabang primer, sekunder, dan tersier. Kombinasi kinetin 200 ppm dan GA₃ 200 ppm meningkatkan bobot panen per tanaman sebesar 26.45% pada panen ke-3 dan 96.83% pada panen ke-4 dibandingkan kontrol, meskipun total hasil panen tidak berbeda nyata. Penelitian ini menyimpulkan bahwa kinetin dan GA₃ berpotensi dimanfaatkan untuk meningkatkan percabangan dan hasil awal cabai katokkon. Penggunaan kinetin 100 ppm direkomendasikan untuk meningkatkan percabangan, sedangkan kombinasi kinetin 200 ppm dan GA₃ 200 ppm dapat digunakan untuk meningkatkan hasil panen pada fase awal produksi. Kata kunci: giberelin, jumlah cabang, produktivitas, sitokinin, zat pengatur tumbuh
Peningkatan Resiliensi Kelompok Petani Padi terhadap Banjir melalui Pemilihan Varietas di Desa Ciuyah, Kabupaten Cirebon Ferindian Falatehan, Sriwulan; Aries, Muhammad; Nurdinawati, Dina; Sholichin, Sholichin; Nindita, Anggi
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 12 No. 1 (2026): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.12.1.1-13

Abstract

Flood disasters, as one of the major impacts of climate change, often exert significant pressure on rice-farming communities, particularly in sustaining production and ensuring food security. Strengthening the resilience of farmer groups in flood-prone areas requires targeted learning processes and well-structured social organization. These two aspects are essential in enhancing resilience through: a) The selection of rice varieties adaptive to climate change and b) The utilization of social institutions to address flood challenges. The Dosen Pulang Kampung (Dospulkam) program of IPB University was implemented in Ciuyah Village, Cirebon regency, to facilitate resilience improvement among rice farmer groups through an integrated training program. The training encompassed the selection of rice varieties and the enhancement of farmer group capacity in managing irrigation resources. The integrated training was conducted from 7‒9 July 2025. The method was conducted through focus group discussions (FGDs), small group discussions, lectures, field surveys, and the distribution of stimulus assistance in the form of IPB 9G seeds, IPB 13S seeds, and IPB 9G rice. Training participants were organized at two levels: group and village. At the community level, 23 community participants represented eight groups from the village; meanwhile, decision-makers, including the village government, the Combined Farmers Group, and village extension workers, were also involved. The results indicated that farmer groups developed a strong understanding of the use of IPB 9G as a climate-smart variety and optimized collective action through social institutions to address irrigation channel constraints. This program has contributed to enhancing the adaptive capacity of rice farmer groups to flood disasters caused by climate change.