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Dini Yuliani
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Ketahanan Galur Isogenik IRBBN dan Galur Harapan Padi terhadap Patotipe Xanthomonas oryzae pv. oryzae Dominan pada Tanaman Padi di Indonesia Dini Yuliani; Untung Susanto; Sudir Sudir
Buletin Plasma Nutfah Vol 23, No 1 (2017): June
Publisher : Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/blpn.v23n1.2017.p23-32

Abstract

Galur isogenik IRBB introduksi dari International Rice Research Institute (IRRI) telah diketahui gen ketahanannya dan dapat digunakan sebagai sumber ketahanan terhadap patotipe Xanthomonas oryzae pv. oryzae (Xoo) dominan di Indonesia. Kegiatan penelitian ini bertujuan untuk mengevaluasi ketahanan galur isogenik dan galur harapan terhadap patotipe Xoo dominan di Indonesia, yaitu patotipe III, IV, dan VIII. Penelitian dilaksanakan di Kebun Percobaan Sukamandi, Subang, Jawa Barat pada musim kemarau (MK) 2012 dan musim hujan (MH) 2012/2013. Penelitian dilakukan dengan Rancangan Faktorial Acak Kelompok dengan tiga ulangan. Faktor pertama adalah tiga patotipe Xoo, yaitu patotipe III, IV, dan VIII, sedangkan faktor kedua yaitu materi yang diuji sebanyak 20 galur IRBB, 6 galur harapan padi, dan 6 varietas pembanding, yaitu Conde, Lusi, Logawa, Java 14, Angke, dan Inpari 1. Hasil penelitian menunjukkan bahwa galur isogenik IRBB 21, IRBB 50, dan IRBB 52 bereaksi tahan terhadap Xoo patotipe III, IV, dan VIII pada MK 2012. Pada MH 2012/2013 diperoleh lima galur isogenik IRBB 52, IRBB 53, IRBB 54, IRBB 56, dan IRBB 57 bereaksi tahan terhadap Xoo patotipe III, IV, dan VIII. Galur isogenik IRBB 52 konsisten tahan terhadap Xoo patotipe III, IV, dan VIII pada dua musim tanam. Oleh karena itu, galur tersebut dapat direkomendasikan untuk dijadikan tetua tahan untuk perakitan varietas tahan HDB.
SISTEM INTEGRASI PADI TERNAK UNTUK MEWUJUDKAN KEDAULATAN PANGAN DINI YULIANI
Jurnal Agroteknologi Vol 4, No 2 (2014): Februari 2014
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v4i2.1133

Abstract

Rice as a staple food source of Indonesian people is still a top priority. However, efforts to increase rice production faced a variety of problems such as a decrease in the productivity of paddy fields due to the lack of organic matter. In addition to rice, meat is quite important food. To fulfill the need of domestic meat portion should be imported. This is an opportunity for the development of cattle breeding business in Indonesia. Crop Livestock Systems Integration (CLS) is one alternative in increasing the production of rice, meat, and dairy while improving the welfare of farmers and ranchers. There are three main technology components CLS namely: 1). Rice cultivation technology, 2). Livestock farming technology, and 3). Straw and compost processing technology. Technology components that can be integrated synergistically, then CLS development done by the institutional approach. CLS program aims to optimize the utilization of local resources such as the use of straw as livestock feed and cow manure can be processed into organic fertilizer that is very helpful to improve the nutrients that plants need so no waste is wasted (Zero waste). Utilization of cow manure was processed into liquid and solid organic fertilizer, is expected to serve as a source of additional income for farmers. Compost and liquid fertilizer and is expected to improve the fertility of agricultural land. CLS program was initiated in conjunction with a program of integrated crop management (ICM). In addition, the development of farming systems approach CLS needs to be done through farmer groups to facilitate agricultural extension, livestock grains technology adoption, and government aid channel. The advantage of the rice-livestock integration pattern that is the utilization of crop residues as a source of animal feed, utilizing livestock manure as fertilizer, creating new jobs in rural areas, and increase community participation in creating a competitive agribusiness, environmental friendly and independent. CLS constraints in achieving food security among farmers groups working mechanism was not going well, utilization of collective cages was not optimal, mentoring and coaching process was not effective because the cattle were scattered locations, the use of manure has not been entrenched among rice farmers, and the application of CLS conducted throughout provinces in Indonesia and there was no apparent progress. Repair CLS for the future should focus on the region so that large-scale production centers and significant impact on population growth and productivity of livestock. Livestock waste treatment close to the location of the rice to minimize transport costs so as to create zero waste and integrated farming systems to achieve food sovereignty.
Keragaan Hama, Penyakit, dan Musuh Alami pada Budidaya Padi Organik Dini Yuliani; Sudir Sudir
Jurnal Agro Vol 4, No 1 (2017)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/1335

Abstract

Organic rice cultivation intents to minimize the use of inorganic fertilizers and chemical pesticides, but in fact not apart from the disruption of pests and diseases. The study aimed to determine the pests, diseases, and natural enemies on organic rice cultivation. The research was conducted at Screen Field of ICRR at WS 2015/2016 and DS 2016, using Split Plot research design with three replications. The main plot was varieties of: 1). Inpari 25, 2). Inpari 33, and 3). Sintanur. The sub-plot was application of leaf extract of: 1). Mindi, 2). Soursop, 3). Mahogany, and 4). Control. Applications were performed on 4, 6, 8, and 10 weeks after planting (WAP). Observations of pests, diseases, and natural enemies on 5, 7, 9, and 11 WAP as many as 20 clumps/plots. The results showed that varieties and leaf extract applications significantly affected on severity of stem rot disease at 5 and 7 WAP in WS 2015/2016. In the rainy season found Yellowing on Inpari 25 and Inpari 33 varieties. However, Sintanur was more resistant to Yellowing with LCC value on two growing seasons was highest compared to the other varieties. Sintanur had the lowest Cercospora Leaf Spot disease severity compared to the other varieties. The severity of disease generally increased with the age of rice increase, while the pest population density and natural enemies were fluctuate. The density of the pest was quite high in the control plot, while the natural enemy density was high enough in the application plots of Mindi, Mahogany, and Soursop extracts.
PENGENDALIAN PENYAKIT TUNGRO MELALUI ELIMINASI PERAN VEKTOR WERENG HIJAU DENGAN PENGENDALIAN RAMAH LINGKUNGAN Dini Yuliani; I Nyoman Widiarta
Agric Vol. 29 No. 2 (2017)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2017.v29.i2.p77-88

Abstract

Green leafhopper (GLH)plays an important role in tungro disease epidemics. Reduce the activity of GLHsuckasvectorsof tungro virus was effective to limit transmission of the virus. Integrated control of tungro disease may involve multiple components at once including using sambilata with entomopathogenicfungus Metarhiziumanisopliae. This research was conducted to determine the effect of sambilata and M.anisopliaein controlling the GLH as tungro virus vectors. The experiment was conducted in tungro endemic areas in Tanjungsiang,Subang District at dry season 2013 and wet season 2013/2014. Experiments using split plot design with four replications. The main plot was consists of GLH resistant varieties(IR66), tungro resistant varieties (Inpari 9), and check varieties(Ciherang). The subplots were M.anisopliae applications, sambilata, and control. Application was done on rice plant age 14, 28 and 42 days after planting (DAP).The results showed that the intensity of tungro on Ciherang showed the highest intensity compared toIR66 and Inpari9. Effect of entomopathogenic fungus M.anisopliae application to tungro disease showed a lower intensity compared with sambilata extracts and control. The intensity of tungro disease in farmers’ fields as a comparison of experiment was high enough on average between 1 until 69%. In general, the density of GLH population began to increase on the observation of 14 to 28 DAP. GLH population density was highest at 28 DAP. However, the population density of GLH decreased at 42 until 56 DAP.
Co-Authors I Nyoman Widiarta Sudir Sudir Untung Susanto