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EXPRESSION OF RESISTANCE OF SOYBEAN TO THE POD SUCKING BUG RIPTORTUS LINEARIS F. (HEMIPTERA: COREIDAE) Suharsono, Suharsono; Sulistyowati, Liliek
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

Factors involved in the mechanism of resistance of soybean to pod sucking bug R. linearis Â were identified using resistant soybean genotypes, IAC-100, and IAC-80-596-2 and the susceptible variety, Wilis as a check. The role of trichomes in resistance was assayed removing trihomes from the pod shell, and seed coat Â and Â the resistance was determined based on the number of stylet punctures made by the bug. Seed of IAC-100 and IAC-596-2 that had longer, denser trichomes, higher crude fiber content andÂ suffered fewer stylet punctures than Â Wilis. This suggested that denser and longer trichomes interfered with stylet piercing of the pod shell. When the trichomes of IAC-100 and IAC-596-2 were removed these genotypes were more susceptible to insect feeding. In further studies, replacement of IAC-100 and IAC-596-2 seed with seed of Wilis in the pods of resistant genotypes resulted less stylet punctures on the Wilis seed. It was concluded that denser and longer trichomes on pods along with harder pod shells acts as a physical barrier in antixenosis resistance of soybean to the pod sucking bug. Therefore, IAC-100, and IAC-596-2 genotypes have good potential for used as resistant parents in a soybean breeding program. Â Â Keywords: resistance, pod characters, tri-chomes, antixenosis, pod stink bug

KOMUNIKASI INTERPERSONAL POKDARWIS DALAM MENINGKATKAN KUALITAS PELAYANAN HOMESTAY Suharsono Suharsono
Jurnal Riset Komunikasi Vol 3 No 2 (2020): Agustus 2020
Publisher : Asosiasi Pendidikan Tinggi Ilmu Komuniasi (ASPIKOM) Wilayah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38194/jurkom.v3i2.158

One of the basic needs of tourists in visiting a tourism destination is accommodation. Not all tourists need luxury hotels. Homestay is one alternative to clean, comfortable and cheaper accommodation. Untungjawa Island is now developing into one of the new tourism destinations. The important thing to consider in a homestay service is the quality of service. Therefore, the focus of this research is "how is interpersonal communication carried out between homestay owners and between homestay owners and visitors?". This research was conducted with qualitative methods and descriptive analysis. Retrieval of data through interviews, observation and FGD. The results showed that interpersonal communication had an impact on improving service quality. Besides that, a mutual agreement on the procedure of tourist services is needed. Further research is needed related to improving the quality of human resources, social capital to increase the attractiveness of Untungjawa's destination.

PENGARUH MODEL PEMBELAJARAN KOOPERATIF JIGSAW DAN STAD (STUDENT TEAM ACHIEVEMENT DIVISION) TERHADAP PRESTASI BELAJAR PENDIDIKAN KEWARGANEGARAAN Suharsono Suharsono
Jurnal Penelitian dan Pendidikan IPS Vol. 9 No. 3 (2015): JPPI
Publisher : Direktorat Pascasarjana Universitas PGRI Kanjuruhan Malang

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This study aims to know the influence of cooperative learning method such as Jigsaw and STAD (Student team Achievement Division) toward learning achievement of civic education of ninth graders at SMP Negeri 8 Probolinggo. The respondents were sixty two (62) students which were the half of it were experiment group for Jigsaw and the rest were for STAD. As the results, it showed that Jigsaw, STAD influence positively toward learning achievement of civic education.

Prospek Kedelai Hitam Varietas Detam-1 dan Detam-2 M. Muchlish Adie; Suharsono Suharsono; Sudaryono Sudaryono
Buletin Palawija No 18 (2009): Buletin Palawija No 18, 2010
Publisher : Balai Penelitian Tanaman Aneka Kacang dan Umbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bul palawija.v0n18.2009.p66-72

Jawa Timur merupakan provinsi terbesar penghasil kedelai Glycine soya Merr. di Indonesia, karena memiliki luas tanam relatif tinggi sehingga menjadi penyumbang terbesar kebutuhan kedelai nasional. Dengan makin pentingnya posisi kedelai sebagai pangan fungsional, maka varietas kedelai unggul tidak semata-mata berdaya hasil tinggi, namun juga harus memenuhi pra-syarat kedelai sebagai pangan sehat dan menyehatkan, sesuai dengan kebutuhan pengguna serta berdaya saing tinggi.Selama 89 tahun (1918–2007) pemerintah Indonesia baru berhasil melepas lima varietas kedelai hitam dan pada umumnya merupakan hasil seleksi terhadap varietas lokal dan galur introduksi, kecuali Cikuray diperoleh dari seleksi terhadap persilangan antara galur No 630 dan Orba. Varietas kedelai hitam Detam-1 dan Detam-2 dilepas tahun 2008, hasil persilangan antara kedelai introduksi dengan varietas Wilis dan Kawi. Keunggulan Detam-l adalah berdaya hasil 2,51 t/ha, berukuran biji besar (14,84 g/100 biji), dan merupakan kedelai hitam pertama yang berukuran biji besar. Detam-2, berdaya hasil 2,46 t/ha dan menjadi varietas kedelai berkandungan protein paling tinggi di Indonesia (45,58 % berat kering) dan tergolong toleran kekeringan pada fase reproduktif.

AN ALTERNATIVE ANALYSIS OF SURFACE WAVES DATA FOR SITE CHARACTERIZATION Suharsono Suharsono
Jurnal Ilmiah MTG Vol 1, No 2 (2008)
Publisher : Jurusan Teknik Geologi Fakultas Teknologi Mineral UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9.277 KB)

The spectral analysis of surface waves (SASW) is an in situ non-destructive testing method. It has been developed and used for many years in the fields of geotechnical engineering and site characterization. It is typically used in evaluation of elastic moduli and layer thickness of soils, rocks and pavements. This method consists of wave generation, measurement and processing of dispersive Rayleigh waves. The stiffness profile of soil media or pavement systems are determined by fitting measured dispersion data with an adjustable theoretical model of the material that depends on layer thickness and elastic moduli. The best-fit stiffness profile is usually formed with optimization techniques.This paper presents an alternative analysis of the Rayleigh waves. This alternative analysis comprises four main steps (1) determine the range of frequencies based on the best coherence value, (2) determine the dominant frequency and wave cycle for wavelength (LR) calculations, (3) calculate the attenuation coefficient for each geophones spacing and plot it versus phase velocity (VR) to produce an exponential equation, and (4) calculate the shear wave velocity from the derived exponential equation.The alternative analysis was tested at three sites i.e. Kamsis H UKM, Bangi, Bandar Sri Putra and Sri Damansara. The analysis has successfully produced an empirical exponential curve for each site. For Bandar Sri Damansara site the exponential equation obtained is α=0.0084*e-0.0014Vs, for Bandar Sri Putra α=0.0094*e-0.0015Vs and for site at KamsisH UKM α=0.0035*e-0.0007Vs. The final profile of Vs versus depth obtained for each site is compared with those of the SASW inversion analysis and Standard Penetration Test data from borehole.

VARIASI TAHUNAN KECEPATAN KALSIFIKASI KORAL PORITES BERDASARKAN ANALISIS COMPUTED-TOMOGRAPHY SCAN (CT –SCAN) DAN KAITANNYA DENGAN SUHU PERMUKAAN LAUT: WILAYAH STUDI PERAIRAN BIAK, PAPUA Sri Yudawati Cahyarini; Suharsono Suharsono
JURNAL RISET GEOLOGI DAN PERTAMBANGAN Vol 24, No 2 (2014)
Publisher : Indonesian Institute of Sciences

Deposition of calcium carbonat (CaCO3) in coral skeleton is known as calcification. The calcification rate is the product of the linear extension rate and the average density at which skeleton was deposited in making that extension. Calcification rate is influenced by the ambient water condition e.g sea surface temperature. To understand the influence of SST to the coral growth, it is required long time series data of both SST and coral growth i.e coral calcification from present time till back tens to hundreds years ago. The aim of this study is to determine the influence of historical SST to coral calcification of Porites coral from Biak waters. In this study, computer tomography approach is used to analyzed coral calcification. Osirix software is used to analyze the coral image data which is resulted from the computed tomography scanning (CT-Scan). Four coral cores from Biak waters were analyzed for their calcification rate. The results shows that the averaged of calcification rate of four cores increases, which is coincided with increasing of Biak SST during period of 1905-2011. ABSTRAKKemampuan koral mengendapkan kalsium karbonat (CaCO3) dikenal sebagai kalsifikasi. Kecepatan kalsifikasi merupakan perkalian densitas dan pertumbuhan linear koral tersebut. Kecepatan kalsifikasi koral dipengaruhi oleh kondisi perairan terumbu karang salah satunya adalah suhu permukaan laut (SPL). Untuk memahami bagaimana pengaruh SPL terhadap kalsifikasi koral diperlukan data historis (data urut-urutan waktu) SPL dan kalsifikasi koral dari masa kini sampai masa lalu. Tujuan utama dari studi ini adalah untuk mengetahui sejarah pengaruh SPL terhadap pertumbuhan koral yaitu kalsifikasi dari koral Porites perairan Biak. Dalam studi ini dihitung kecepatan kalsifikasi dengan menggunakan pendekatan tomografi koral dengan menggunakan perangkat lunak Osirix. Hasil scanning computer tomografi (CT-Scan) koral merupakan data inputing Osirix. Empat contoh koral dari perairan Biak dilakukan analisis kecepatan kalsifikasi. Hasil rata-rata kecepatan kalsifikasi dari ke empat contoh koral Porites Biak menunjukkan kenaikan kecepatan kalsifikasi koral yang selaras dengan kenaikan SPL selama periode 1905-2011.

Modeling Hot Spot Motor Vehicle Theft Crime in Relation to Landuse and Settlement Patterns Djaka Marwasta; Suharsono Suharsono
Forum Geografi Vol 17, No 2 (2003)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v17i2.533

The crowd of Yogyakarta urban has impacted its surrounding area, including Depok sub district, which is indicated by the rising of physical development, for example education facilities and settlements. The progress does not only bring positive impact, but also negative impact for instance the rising of crime number i.e. motor vehicle robbery. The aims of this research are 1) mapping motor vehicle robbery data as the distribution map and identifying motor vehicle robbery hot spot base on distrbution map; and 2) studying the correlation of motor vehicle robbery hot spot with physical environment phenomena, i.e. land use type and settlement pattern. The research method consists of two parts; they are motor vehicle robbery cluster analysis and the relation of motor vehicle robbery and physical environment analysis. Motor vehicle robbery cluster analysis is using distribution data, which analyzes the distribution into motor vehicle robbery hot spot with nearest neighbor tehnique. Contingency coefficient and frequency distribution analysis is used to analyze the correlation of motor vehicle robbery hot spot and physical environment. Contingency coefficient is used to study the relation of motor vehicle robbery hot spot polygon with physical environment condition, whereas frequency distribution is used to study the distribution of motor vehicle robbery in the hot spot with physical environment condition. Physical environment which consists of land use type, housing density, house regularity pattern, and the average of building size, are obtained from interpretation of black and white panchromatic aerial photograph year 2000, in the scale 1 : 20.000. the most motor vehicle robbery hot spot is found on the settlement area, 68,3% from 378 motor vehicle robbery cases in the hot spot. The seond level is found on the education area (16.4%). The most motor vehicle hot spot in the settlement is found on the hight density and irregular settlement, which have big size buildings. The calculation of contingency coefficient shows that there was a significant correlation between motor vehicle robbery hot spot with land use type and settlement pattern, but it has low correlation value. It means that land use type and settlement pattern have weak influence to the hot spot existence.

PENGARUH EKSTRAK TOMAT TERHADAP PERTUMBUHAN EMBRIO ANGGREK Phaius tankervilleae KHAS GUNUNG GALUNGGUNG KABUPATEN TASIKMALAYA Risty Agustin; Suharsono Suharsono; Rinaldi Rizal Putra
Bioma : Jurnal Ilmiah Biologi Vol. 9 No. 2: Oktober 2020
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v9i2.7064

Anggrek menjadi salah satu tanaman berbunga yang paling banyak diminati oleh sebagian besar kalangan, sehingga menjadikannya banyak diincar baik di habitat alaminya maupun yang telah dibudidayakan. Salah satu anggrek yang banyak diminati tersebut adalah jenis Phaius tankervilleae, yang merupakan anggrek tanah terbesar. Anggrek ini cukup jarang dibudidayakan, sehingga dikhawatirkan keberadaannya di alam menjadi teracam. Tujuan penelitian ini adalah untuk mengetahui pengaruh ekstrak tomat terhadap pertumbuhan embrio anggrek Phaius tankervilleae khas Gunung Galunggung Kabupaten Tasikmalaya. Penelitian ini dilaksanakan pada bulan April hingga bulan Juli di Laboratorium Kultur Jaringan Jurusan Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan Universitas Siliwangi. Metode yang digunakan adalah metode true experimental dengan populasi seluruh biji/embrio anggrek yang ditabur dari satu buah ke dalam cawan petri berisi media VW dengan tambahan 5 variasi konsentrasi ekstrak tomat (PA: 50 g/L, PB: 100 g/L, PC: 150 g/L, PD: 200 g/L, dan PE: 250 g/L) dan kontrol (P0) atau tanpa penambahan ekstrak tomat. Perlakuan disusun dalam Rancangan Acak Lengkap (RAL) dengan 4 kali ulangan. Sampel diambil dengan menggunakan teknik simple random sampling sebanyak 20 embrio pada setiap cawan petri. Untuk mengukur pertumbuhan embrio anggrek digunakan parameter pertumbuhan berupa perubahan ukuran dan warna embrio anggrek yang disimbolkan dengan 6 fase pertumbuhan. Teknik analisis data yang digunakan adalah uji one way ANOVA dengan α 0,05 dan uji lanjutan LSD. Hasil penelitian menunjukan bahwa penambahan ekstrak tomat memberikan pengaruh yang signifikan terhadap pertumbuhan embrio anggrek Phaius tankervilleae khas Gunung Galunggung Kabupaten Tasikmalaya, dengan perlakuan terbaik ditunjukan oleh perlakuan penambahan ekstrak tomat 100 gr/l (perlakuan PB). Kata kunci : ekstrak tomat, pertumbuhan, embrio, Phaius tankervillea

EXPRESSION OF RESISTANCE OF SOYBEAN TO THE POD SUCKING BUG RIPTORTUS LINEARIS F. (HEMIPTERA: COREIDAE) Suharsono Suharsono; Liliek Sulistyowati
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
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.v34i1.137

Factors involved in the mechanism of resistance of soybean to pod sucking bug R. linearis were identified using resistant soybean genotypes, IAC-100, and IAC-80-596-2 and the susceptible variety, Wilis as a check. The role of trichomes in resistance was assayed removing trihomes from the pod shell, and seed coat and the resistance was determined based on the number of stylet punctures made by the bug. Seed of IAC-100 and IAC-596-2 that had longer, denser trichomes, higher crude fiber content and suffered fewer stylet punctures than Wilis. This suggested that denser and longer trichomes interfered with stylet piercing of the pod shell. When the trichomes of IAC-100 and IAC-596-2 were removed these genotypes were more susceptible to insect feeding. In further studies, replacement of IAC-100 and IAC-596-2 seed with seed of Wilis in the pods of resistant genotypes resulted less stylet punctures on the Wilis seed. It was concluded that denser and longer trichomes on pods along with harder pod shells acts as a physical barrier in antixenosis resistance of soybean to the pod sucking bug. Therefore, IAC-100, and IAC-596-2 genotypes have good potential for used as resistant parents in a soybean breeding program. Keywords: resistance, pod characters, tri-chomes, antixenosis, pod stink bug

Prospek Kedelai Hitam Varietas Detam-1 dan Detam-2 M. Muchlish Adie; Suharsono Suharsono; Sudaryono Sudaryono
Buletin Palawija No 18 (2009): Buletin Palawija No 18, 2010
Publisher : Balai Penelitian Tanaman Aneka Kacang dan Umbi

Jawa Timur merupakan provinsi terbesar penghasil kedelai Glycine soya Merr. di Indonesia, karena memiliki luas tanam relatif tinggi sehingga menjadi penyumbang terbesar kebutuhan kedelai nasional. Dengan makin pentingnya posisi kedelai sebagai pangan fungsional, maka varietas kedelai unggul tidak semata-mata berdaya hasil tinggi, namun juga harus memenuhi pra-syarat kedelai sebagai pangan sehat dan menyehatkan, sesuai dengan kebutuhan pengguna serta berdaya saing tinggi.Selama 89 tahun (1918–2007) pemerintah Indonesia baru berhasil melepas lima varietas kedelai hitam dan pada umumnya merupakan hasil seleksi terhadap varietas lokal dan galur introduksi, kecuali Cikuray diperoleh dari seleksi terhadap persilangan antara galur No 630 dan Orba. Varietas kedelai hitam Detam-1 dan Detam-2 dilepas tahun 2008, hasil persilangan antara kedelai introduksi dengan varietas Wilis dan Kawi. Keunggulan Detam-l adalah berdaya hasil 2,51 t/ha, berukuran biji besar (14,84 g/100 biji), dan merupakan kedelai hitam pertama yang berukuran biji besar. Detam-2, berdaya hasil 2,46 t/ha dan menjadi varietas kedelai berkandungan protein paling tinggi di Indonesia (45,58 % berat kering) dan tergolong toleran kekeringan pada fase reproduktif.

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