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YIELD STABILITY OF NEW HYBRID RICE ACROSS LOCATIONS Satoto, Satoto; Rumanti, Indrastuti Apri; Widyastuti, Yuni
AGRIVITA, Journal of Agricultural Science Vol 38, No 1 (2016): FEBRUARY
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v38i1.675

Abstract

The adaptation of hybrid rice varieties mostly are in specific location and season, but there are some of the varieties have a wide adaptation then adopted by the farmer in the large area. Replicated yield trials were conducted to study the stability of hybrid rice yield and identify the best location to optimize their yield per ha. We have conducted the trials in three location such as Sukamandi, Salatiga and Malang during two seasons in 2011. We are analyzing data across location and season  using AMMI and Eberhart Russel methods. The AMMI analysis showed that the  IR79156A/PK88 was adaptable to favorable environments but unstable. This hybrid is always performing well and produce the higher yield compare to check variety. Some of other hybrids  were good only in specific location, i.e. IR62829A/BP2280-1E-12-22 and IR58029A/BP2 280-1E-12-22. Those hybrids produced higher yield in Salatiga and Malang, respectively. Seem to AMMI analysis, the result of Eberhart and Russells method also showed that IR79156A/PK81  was the best hybrid with regression slope (b) around 1 with the yield average higher than average of all hybrids. It indicated that this hybrid has a wide adaptation and probably can be cultivated in the wider ecosystem.
Perakitan Varietas Unggul Padi Beras Merah Aromatik Tekstur Nasi Pulen Nugraha, Yudhistira; Rumanti, Indrastuti Apri; Sitaresmi, Trias; Rahmini, Rahmini; Rosa, Celvia; Handoko, Dody D; Sasmita, Priatna
Jurnal Penelitian Pertanian Tanaman Pangan Vol 5, No 3 (2021): Desember 2021
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v5n3.2021.p173-182

Abstract

Consumption of high nutritional is increasing; therefore, it is necessary to develop pigmented trice variety with high yield, good adaptability, and good grain quality favored by consumer such as soft texture. The development of aromatic rice variety includes crossbreeding, selection, yield trials, resistance test to pest and diseases, physico-chemical properties assay, analyzing of minerals contents and anthocyanin which were done consecutively during 2012 to 2016. The results showed that a promising line of BH39D-MR-11-1-1-6 revealed consistent grain yield in 16 multi-location yield trials both in the dry season and the wet season in average 6.78 t/ha dan 5.35 t/ha, respectively. The line demonstrated its yield potential of 10,67 t/ha, mid-resistance to biotype 1 of brown planthopper, resistance to pathotype III and mid-resistance to pathotype IV and VIII of bacterial leaf blight, and mid-resistance to four races of rice blast (race of 033, 073, 133 and 173). This line had relatively comparable iron content with the check variety of Inpari-5 Merawu but higher in zinc content compared to other lines tested. The dehulled rice was red and contains a high total phenolic compound amounting (5,743 mg AAE/100 g), and its texture was soft and fragrance. The BH39D-MR-11-1-1-6 has been released as new rice variety named as Inpari Arumba and had a great potential to become a national specialty rice choice.
Korelasi dan Sidik Lintas Karakter Agronomi Padi Hibrida Nita Kartina; Bayu Pramono Wibowo; Yuni Widyastuti; Indrastuti Apri Rumanti; . Satoto
Jurnal Ilmu Pertanian Indonesia Vol. 21 No. 2 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.951 KB) | DOI: 10.18343/jipi.21.2.76

Abstract

Two approachment to increase yield productivity with new variety throught new plant type (NPT) concept and heterosis exploitation of hybrid rice. The research was to evaluated yield and yield component of 36 hybrid rice genotypes in preliminary yield trial at two locations. The experiment was conducted in the second season MT (II) 2013 at the Sukamandi experimentalstation, Subang, West JavaProvince and in Batang, Central Java Province by usingRandomized Complete Block Design (RCBD). The material used were36hybrid rice genotypes and four check varieties namely Hipa8, Hipa Jatim2,Ciherang, and Longping Optima. The results showed that grain yield had been effected by location, genotypes, and both interactions. There were two hybrid rice genotypes that give high yield potential than four check varieties, and one hybrid rice genotype significantly different from Longping Optima. Those hybrids were GMJ6/CRS519 (9.9 t/ha) and GMJ14/CRS757 (9.5 t/ha), and A1/CRS518 (6.2 t/ha). Based on path analysisnumber of productive tiller and number of total grain per panicle have direct effect to yield with path coefficient as 0.4028 and 0.2153. Length panicle and seed set also gave positif and significant direct effect to yield as 0.095 and 0.0956, so these characteristics could be used as selection criteria. 
Genotyping of rice (Oryza sativa L.) plants according to their root distribution pattern and their tolerance to drought Novitasari, Adin; Rumanti, Indrastuti Apri; Wening, Rina Hapsari; Damanhuri, Damanhuri
Jurnal Ilmu Pertanian Vol 8, No 3 (2023): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.84677

Abstract

Drought condition is one of the major problems in producing rice in Indonesia. In plant breeding, selection is the main step to create superior varieties. An indicator of drought stress-tolerant rice varieties is the root distribution pattern because it describes the behavior of the roots in searching for water for photosynthesis and metabolism processes. One of the morphological traits related to drought tolerance in rice is root growth and development. This study aimed to determine the morphological and anatomical characteristics of drought-tolerant rice roots and identify drought-tolerant genotypes. The experiments were arranged in a factorial randomized block design with four replications. The first factor was genotype, consisting of ten genotypes. The second factor was drought stress, consisting of two environments without drought and with drought stress. Drought was given only in the vegetative phase, i.e., 1–14 days after planting. WINDEX analysis was performed to determine rice drought tolerance and identify drought-tolerant genotypes. The results showed that three out of the ten tested genotypes had higher WINDEX values, namely BP30411f (7.62), B13983-KA-6-3 (7.99), and BP29790d-PWK-2-SKI-1-3 (9.25). Based on the root distribution pattern, plants with longer primary root lengths, more seminal roots, longer seminal root lengths, and high root angles were predicted to be drought tolerant characteristics. Selection of these characters could be used in future rice breeding programs to obtain plants with superior genotypes.
Diversity and Allelopathic Potential of Weeds in Swampland Sujinah, Sujinah; Margaret, Swisci; Agustiani, Nurwulan; Ningsih, Rina Dirgahayu; Rumanti, Indrastuti Apri
PLANTA TROPIKA Vol 11, No 2 (2023)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v11i2.16491

Abstract

Weeds are plant disturbing organism that affect yields through competition and allelopathy. However,  not much is known about weed diversity in swamps, so research is needed to identify their types and compounds as a weed control strategy. This study was conducted using a survey method from January to March 2020 at the Barito Kuala District, South Kalimantan. Thirty villages were randomly selected from each of the eight chosen subdistricts. Out of the twenty-six weed species identified, there were ten species of grasses, seven sedges, and nine broadleaves. The results showed that the weed species were dominated by Cyperus halpan, Eleocharis dulcis, and Cynodon dactylon (L.), with an SDR of 23.46, 16.73, and 10.03, respectively. The analysis of GC-MS showed that the weeds contained four similar compounds: neophyte diene, palmitic acid, linoleic acid, and stigmasterol. The largest compound content in C. halpan was diisocotyl phthalate (48.49%), while in E. dulcis and C. dactylon the largest were o-phthalic acid and mono-2-ethylhexyl-ester (69.36 and 40.23%). Moreover, weed allelochemicals are classified into fatty acids, steroids, esters, and other volatile compounds, where some have the potential for allelopathy that inhibits crop growth. 
Effect of Drought Periods on Rice Lines Growth and Yield Margaret, Swisci; Nafisah, Nafisah; Sujinah, Sujinah; Rumanti, Indrastuti Apri; Yunani, Nani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.49-59

Abstract

Numerous variables, such as drought period, growth stage, and varieties, influence rice growth and yield in response to drought. This study was conducted to determine the effect of drought periods on the growth and yields of several rice lines and varieties as well as to select drought-tolerant lines. Using a split-plot design with three replications, the pot experiment was carried out in the greenhouse from December 2015 to April 2016 at the Sukamandi Experimental Site of Indonesian Center for Rice Research (BB Padi). Drought periods were treated as the main-plot, while the rice lines/varieties were treated as sub-plots. The main-plot consists of four levels: control, drought at the maximum tillering stage, drought at the primordia stage, and drought at the grain filling stage. The rice lines used are expand lines of rainfed lowland rice and upland rice from the BB Padi breeding program. The results showed that of the 36 rice lines and 6 varieties tested, drought periods during maximum tillering and primordia affected plant height, while the tiller number was not affected by all drought periods. From the yield characters, drought periods increased unfilled grain percentage and decreased 1000 grains weight and also grain weight per plant. Jatiluhur is consistently tolerant and has the highest yield. There are 8 rice lines with consistent tolerance and not significantly different yields with Jatiluhur: B13650E-TB-80-2, B14168E-MR-6, B14168E-MR-10, B14168E-MR-11, B14168E-MR-12, B14168E-MR-13, B12480D-MR-7-1-1, and B12056F-TB-1-29-1. Keywords:  Drought periods, Rice lines,  Growth, Yield 
Penampilan Fenotipik dan Tingkat Kemandulan Tepungsari Calon Galur Mandul Jantan Tipe Wild Abortive Rumanti, Indrastuti Apri; Satoto, ,; Munarso, Yuniati Pieter
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 35 No. 3 (2007): 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 (45.816 KB) | DOI: 10.24831/jai.v35i3.1325

Abstract

Wild Abortive (WA) type of cytoplasmic male sterility (CMS) was developed by Indonesian Center of Rice Research, Sukamandi through backcross method. Pollen sterility and phenotypic acceptability evaluation of cytoplasmic male sterile (CMS) candidates were considered important in CMS development process. Both of evaluation were done during dry season 2002 and wet season 2002/2003. The materials were 18 CMS candidates and their resembled maintainers. Each line planting on two rows (2.5 m each) with 20 x 20 cm spacing. Observations were done for 50% flowering time, pollen sterility and phenotypic acceptability. The results of observations showed that : (a) the variation of pollen sterility among 18 CMS candidates were 82.5 - 100%; (b) Nine CMS candidates were consistent in sterility (100%) and good in phenotypic acceptability during the two seasons. Those lines were derived from IR62829A/BP1082, IR68897A/S3613F, IR66707A/Barumun, IR58025A/S24731, IR62829A/BP68C, IR68886A/IR71605, IR66707A/A2790, IR69622A/IRBB5 and IR68886A/T12357. The male parent as donor were elite lines with some good characters such as good eating quality, resistant to Rice Tungro Virus (RTV) and Bacterial Leaf Blight (BLB).   Key words : Rice, cytoplasmic male sterile, pollen sterility, phenotypic acceptability
Seleksi Simultan Karakter Daun Mengering dan Produktivitas pada Galur-galur Padi Wening, Rina Hapsari; Purwoko, Bambang Sapta; Suwarno, Willy Bayuardi; Rumanti, Indrastuti Apri; Khumaida, Nurul
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 (569.772 KB) | DOI: 10.24831/jai.v47i3.26076

Abstract

Drought is an important constraint for rice production in rainfed lowland and shallow freshwater swamp. The area often experiences drought stress at the generative stage of the plants. This study aimed at selecting adaptive lines to terminal drought and formulating a multiple regression model to estimate the productivity under drought stress conditions at the generative stage. The experiment was conducted in a greenhouse of the Indonesian Center for Rice Research, Subang, West Java, using an augmented design with five blocks. The genetic material used was ninety-nine lines and four checks varieties, namely Inpari 30, Limboto, Salumpikit, and IR 20. The model was formulated using stepwise regression analysis. Based on this study, ten lines were adapted to drought stress at the generative stage, namely B13983E-KA-12-2, B13926E-KA-13, B13507E-MR-19, B14366E-KY-50, B14366E-KY-37, IR86384- 46-3-1-B, BP20452e-PWK-0-SKI-1-1, BP20452e-PWK-0-SKI-2-4, BP20452e-PWK-0-SKI-3-3, and BP29790d-PWK-3 -SKI-1-5. The B13507E-MR-19 had the highest productivity (4.02 ton ha-1) under drought stress conditions. Yield under drought stress in the greenhouse could be predicted using a linear regression model involving plant height at early vegetative stage, plant height up to the panicle, tiller number at early vegetative stage, tiller number at late vegetative stage, tiller number at flowering, heading time, number of filled grain, and panicle exsertion length. This model was able to explain 75.92% of yield variation. Potential rice lines and the regression model obtained are expected to contribute to the development of rice varieties adaptive to drought. Keywords: drought tolerant, freshwater swamp, rainfed, regression model
Penampilan Agronomi Galur-Galur Padi Sawah Tadah Hujan Toleran Kondisi Anaerob pada Fase Perkecambahan Sitaresmi, Trias; Kartina, Nita; Aida Fitri Viva Yuningsih; Indrastuti Apri Rumanti; Nafisah; Untung Susanto; Yudhistira Nugraha
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 49 No. 1 (2021): 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 (389.008 KB) | DOI: 10.24831/jai.v49i1.34187

Abstract

Budidaya padi di sawah tadah hujan dengan sistem tebar benih langsung memerlukan varietas yang beradaptasi baik pada kondisi ekosistem tersebut dan toleran terhadap tingkat oksigen rendah selama berkecambah atau anaerobic germination (AG). Penelitian bertujuan mengevaluasi penampilan agronomi galur-galur padi dilakukan di sawah tadah hujan, serta toleransinya terhadap kondisi AG. Evaluasi toleransi cekaman kondisi anaerob dilakukan di rumah kaca BB Padi pada bulan Februari 2020. Materi yang digunakan adalah 12 genotipe padi. Penapisan AG dilakukan dengan merendam benih dalam air dengan ketinggian 10 cm selama 10 hari. Pengujian daya hasil dilakukan di sawah tadah hujan Sumedang dan Pati pada musim hujan 2020. Percobaan disusun menggunakan rancangan kelompok lengkap teracak dengan empat ulangan. Toleransi terhadap kondisi AG dapat diidentifikasi berdasarkan karakter persentase daya pulih, panjang tunas dan akar, dan biomassa. Karakter-karakter tersebut saling berkorelasi nyata, positif, dan kuat. Galur IR 83381-B-B-6-1, IR 129336:11-19-Ski-0-Kn-3 dan B14897E-SKI-9-7-2 memiliki toleransi AG lebih baik daripada Inpari 30 dan Inpari 39. Dari hasil pengujian lapangan, dua galur memiliki rata-rata GKG setara dengan Inpari 30 dan Inpari 39, serta konsisten cukup tinggi yaitu IR 129336:11-19-Ski-0-Kn-3 (5.61 ton ha-1) dan B14316E-KA-15 (6.04 ton ha-1). Hasil pengujian ini dapat dilanjutkan dengan uji multi lokasi pada galur IR 83381-B-B-6-1, IR 129336:11-19-Ski-0-Kn-3 dan B14897E-SKI-9-7-2 dengan mempertimbangkan daya hasil dan adaptasinya sehingga dapat dilepas menjadi varietas toleran AG. Kata kunci: cekaman abiotik, perkecambahan anaerob, tebar benih langsung
Konfirmasi Toleransi Galur-galur Padi terhadap Cekaman Kekeringan secara Molekuler Wening, Rina Hapsari; Willy Bayuardi Suwarno; Bambang Sapta Purwoko; Indrastuti Apri Rumanti; Amy Estiati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 49 No. 2 (2021): 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 (56.444 KB) | DOI: 10.24831/jai.v49i2.36565

Abstract

Seleksi secara fenotipik, terutama terhadap cekaman abiotik, seringkali sulit dilakukan. Kegiatan seleksi secara molekuler diperlukan untuk mengidentifikasi hingga taraf molekuler bahwa suatu sifat toleran terbukti secara genotipik. Tujuan dari penelitian ini ialah untuk mengkonfirmasi sifat toleransi kekeringan galur-galur padi secara molekuler menggunakan marka SSR RM164, RM228, RM248, dan RM328. Penelitian dilaksanakan di Laboratorium Bioteknologi LIPI, Cibinong pada bulan November hingga Desember 2017, menggunakan teknik polymerase chain reaction (PCR). Hasil penelitian menunjukkan bahwa marka RM228 terkait dengan karakter skor menggulung, panjang malai, tinggi tanaman dan umur berbunga, sedangkan RM328 terkait dengan panjang malai, jumlah anakan, jumlah gabah isi per malai, dan produktivitas. Marka tersebut diduga dapat digunakan untuk seleksi toleransi kekeringan. Tujuh dari sepuluh galur yang terindikasi toleran terhadap cekaman kekeringan fase generatif berdasarkan skrining secara artifisial terkonfirmasi secara molekuler berada dalam satu kelompok dengan varietas pembanding toleran ‘Limboto’. Ketujuh galur tersebut ialah B13983E-KA-12-2, B13507E-MR-19, B14366E-KY-50, BP20452e-PWK-0-SKI-1-1, BP20452e-PWK-0-SKI-2-4, BP20452e-PWK-0-SKI-3-3, dan BP29790d-PWK-3-SKI-1-5. Kata kunci: marka, toleransi kekeringan, polymerase chain reaction