Jurnal Informatika Pertanian : Volume 22 No. 2, 2013

ISSN 0852-1743
Terakreditasi dengan Predikat C
Sertifikat No. 383/AU1/P2MBI/07/2011
(SK Kepala LIPI No. 629/D/2011)
Diterbitkan dua kali setiap tahun oleh :
Sekretariat Badan Litbang Pertanian
Badan Penelitian dan Pengembangan Pertanian

Penanggung Jawab :
SEKRETARIS BADAN LITBANG PERTANIAN

Dewan Redaksi :

Ketua :
Dr. Ir. L. Hardi Prasetyo, M.Agr. (Genetika Kuantitatif/Statistika)

Wakil Ketua :

Dr. Ir. Rohlini, M.S. (Manajemen Sumberdaya Pertanian)

Anggota :

Prof.(Riset) Dr. Elna Karmawati, MS. (Entomologi/Statistika)
Prof.(Riset)Dr. Kedi Suradisastra, M.Sc. (Sosiologi dan Kelembagaan Pertanian)
Prof.(Riset) Dr. Ir. Subandriyo, M.Sc. (Pemuliaan dan Genetika Ternak)
Drs. Bambang Sankarto, M.I.M. (Teknologi Informasi)
Dr. Ir. Muhamad Sabran, M.Sc. (Produksi Tanaman/Statistika)
Ir. Erlita Adriani, MBA.  (Sistem Informasi)
Dra. Siti Nurjayanti, M.Sc. (Teknologi Informasi)

Mitra Bestari :

Prof. Dr. Ir. Le. Istiqlal Amien, M.Sc. (Agroklimat dan Pencemaran Lingkungan)
  Dr. Ir. Atien Priyanti, M.Sc. (Ekonomi Pertanian)
Dr. Ir. Hari Wijayanto, M.Si. (Statistika)
Dr. Sutoro. (Statistika)
Dr. Ir. Bambang Sayaka, M.Sc. (Ekonomi Pertanian)
Bens Pardamean, Ph.D. (Teknologi Informatika)
Redaksi Pelaksana :

Mimbarsono
Mohamad Maulana, A.Md.
Henny R. Sipayung, S.Sos.
Wasiyah Utami, A.Md.
  • Prediksi Silsilah Populasi Lalat Chysomya Bezziana Berdasarkan Parsimoni Statistik (Program TCS) Menggunakan Data Sekuen Gen DNA Mitokondria dan Inti

April H. Wardhana
Balai Besar Penelitian Veteriner, Jl. R.E. Martadinata N. 30, Bogor
E-mail : a_hwardhana@yahoo.com

Eradication of myiasis agent (Chrysomya bezziana fly) using Sterile Insect Technique (SIT) program could be effective if there are no sibling complexes within its extensive geographical range. Accordingly, the study of species determination and genealogical network of the flies is fundamental components for supporting the SIT program. So far, the species concept of the flies remains controversial among scientists. This paper reviews application of statistical parsimony, its advantages and data interpretation on estimating gene genealogies of C. bezziana populations, so that the SIT program approach for myiasis eradication could be recommended. The statistical parsimony (TCS Program) is a statistical tool for estimating genealogical relationship among genes at the genetic population level. The analysis uses sequence data of mitochondrial (haplotype) and nuclear (nuclear) DNA. Basically, the analysis consists of two steps. Firstly, the limit of parsimony is evaluated to determine the minimum number of differences among tested haplotypes/allele. Secondly, the network summarizing all most parsimonious results is constructed from connecting of haplotypes differing by one change, then those differing by two, by three and so on until a single network or parsimony connection limit is reached. If the haplotypes distant is more than the parsimony limit, the connection is not joined. A study on 754 specimens of the flies collected from 359 locations in 11 countries (including Indonesia) based on cytochrome b/cyt b (mitochondrial DNA) and white eyes color/wec genes (nuclear DNA) demonstrated that the population of C. bezziana in the world occurs as two races, Asian and African. It could be considered as two different species or sub-species. In addition, Elongation Factor 1 alpha/EF1α (nuclear DNA) failed to distinguish those races. The analysis also enabled to identify sub-lineages (modal haplotypes/allele) of the flies, 3 sub-lineages for cyt b and 2 sub-lineages for wec genes.

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  • Pengaruh Intensifikasi Usahatani Padi Terhadap Peningkatan Produksi dan Pendapatan Petani di Kabupaten Manokwari

Jeffry E. Sianipar dan Bambang S. Sankarto
1) Sekretariat Badan Litbang Pertanian, Jl. Ragunan No. 29, Jakarta
2) Pustaka Bogor, Jl. Ir. H. Juanda No. 20, Bogor 16122
E-mail : je-sianipar@yahoo.com

The increase in rice productivity had been achieved in Manokwari District since 2008 but it is still very low (6.5%). To increase the production, local governments have been trying to optimize the utilization of existing resources and the use of technological innovation. This study aims at determining and analyzing the factors affecting the rice production and farmer income. The study was conducted in Prafi Distrik, Masni District and Warmare District of Manokwari Regency. The total sample of population were 90 farmers which each district was taken as many as 30 people that then were grouped into transmigration farmers and local farmers. The data were analysed using the production function and the function of the Cobb-Douglass revenue and estimated by Ordinary Least Square method (OLS). The result revealed that the effect of farming intensification on rice production and farmers' income was better gained by transmigration farmers than that of local ones.

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  • Metodologi Area Frame untuk Pengukuran Produktivitas Padi

Mohammad Chafid

Statistisi Madya, Pusat Data dan Informasi Pertanian, Jl. Harsono Rm No.3 Ragunan Jakarta

E-mail : mohammad.hafidz1@gmail.com

Information on production data obtained from the harvested data collection and productivity. Rice productivity data collection approach households do often considered less representative. Pusdatin developing and testing the methodology for measuring the productivity of the frame area of rice which aims to calculate the average yield of rice productivity and compared with the results of a survey measuring the productivity of rice through regular tile. Method that use is systematic random sampling. Factors affecting rice productivity improvement programs, the tile samples to fall in the lowlands/highland and use the program SL-PTT/whitout SL-PTT. The survey was conducted in Cianjur and obtained results 90 plots fall on the plateau and 310 plots in the lowlands, 56 plots SLPTT dn 344 program does not follow the plot SLPTT program with a sample of 400 plots. Test results comparing the average weight of tile method Area Frame and Frame Listing by district shows p-value results in 12 districts or as much as 75% reject Ho, which means that there are significant differences between the tile area method frame and frame listings. While based on the district shows p-value 0.493 (accept Ho), which means there is no significant difference between the tile frame area methods and tile listing frame. This suggests that the variability of paddy yield in the sub-district is higher than throughout the district. The method has the advantage over the frame area, which is a clear yield measurement locations on the map paddy land so it will not move beyond the selected mesh.

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  • Keragaman Morfologi dan Genetik Lengkeng di Jawa Tengah dan Jawa Timur

 Baiq Dina Mariana dan A. Sugiyanto
Balai Penelitian Tanaman Jeruk dan Buah Subtropika, Jl. Raya Tlekung No. 1, Junrejo, Batu, Jatim 65301
E-mail : dina_bq@yahoo.co.id

Research on Longan Diversity in Central Java and East Java has been conducted to gain information on morphology diversity and genetic of longan which develop in Central Java and East Java with their own good characters. Observations were made on 35 longan accessions obtained from exploration. DNA analyses using RAPD markers showed that those accessions have similarity level of 36-96% and were divided into four groups. The first group which has similarity level of 42%-73% consisted of 16 accessions, the second group which has similarity level of 52% consisted of two accessions, the third group which has similarity level 64%-96% consisted of 9 accessions and the fourth group which has similarity level of 73%-91% consisted of 5 accessions. Accessions which have the closest relationship were Tawangmangu 1 and Tawangmangu 2 (96% of similarity level) while the farthest were Bandungan 1 and Purworejo 3. Of 35 accessions, four of them showed high quality fruit, which were Pingpong, Tanpa Nama, Lokal Batu dan Itoh.

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  • Sistem Teknologi Informasi Kalender Tanam Terpadu

 Fadhlullah Ramadhani, Eleonora Runtunuwu, dan Haris Syahbuddin
Balai Penelitian Agroklimat dan Hidrologi, Jl. Tentara Pelajar No. 1a, Bogor 16114
E-mail : dani_ikomp98@yahoo.com

Science and technology accrued by researches can be applied only when well understood by and delivered timely to appropriate users. One of the approaches is the development of information technology that recently widely applied in many fields. This paper describes the compilation of ceropping calendar information in the form of web-based integrated cropping calendar information technology system. The system development was in the form of desk study, which consists of five steps: 1) Data inventory, 2) Utilization of algorithm analysis, 3) Utilization of design system, 4) Programming, and 5) Testing and operation of integrated cropping calendar information technology systems. The product can be accessed through www.litbang.deptan.go.id, and become guidence for the users ahead of the next planting season. The available information is at sub-district level that consists of forecasted planting time, planting area estimation, floods, droughts and pests’ prone area, varieties recomendation, fertilizer dosage requirements. The information technology system is dinamics, therefore, both substance and system to be evaluated, updated, and refined through verification and validation activities. A continuous maintenance is necessary to cater the user requirements concerning planting time and other technologies recomendation information accurately.

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  • Faktor Sosial Ekonomi Penentu Adopsi Pengelolaan Tanaman Terpadu (PTT) Padi Sawah di Bangka Belitung

Irma Audiah Fachrista, Rachmat Hendayana, dan Risfaheri Balai Pengkajian Teknologi Pertanian Provinsi Kepulauan Bangka Belitung, Jl. Mentok Km. 4 Pangkal Pinang

E-mail : fachrista@yahoo.com

Rice is a new developing farming in Bangka Belitung and its productivity is only 3.54 t/ha. The productivity can be increased through implementationof Integrated Crop Management (ICM). Acceleration of information and adoption of ICM has been carried out throught Integrated Crop Management Field School (ICM-FS) since 2009. The objectives of this research were to find out1). the adoption level of ICM by farmers, 2). socio-economic factors determining farmers' decision to implement ICM. This research was conducted in the period of March - December 2011 by using survey method. . The responden were 54 participants of ICM-FS at South Bangka and Bangka districts. Adoption rate of ICM was analyzed using descriptive technique, whereas the socio-economic factors were assessed using logit regression model. The analysis showed that 1). several component of ICM with high adoption rate were varieties, harvest and post-harvest handling, planting young seedlings and processing land, 2). the determinant factors that influenced the adoption of ICM were education, land, home-farm distance, home-highways distance, home-input markets distance, and home-source of technology distance.

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  • Penyusunan Alternatif Model Kelembagaan Kredit Usaha Pertanian di Perdesaan

Rudi Hartono, Setia Hadi, Bambang Juanda, dan I Wayan Rusastra
Balai Pengkajian Teknologi Pertanian Provinsi Bengkulu,
e-mail: kak_rudi@yahoo.com

Various types of financing in the agricultural sector included formal and non-formal were practiced in the community. However their implementations still have faced some obstacles and barriers related fund provider and its receiver. The failure of agricultural credit is generally caused by untouched peasant perpetrators, lack for peasant’s preparation as the target group, number of leakage loans and inappropriate credit mechanisms. Currently institutional model is expected as solution for the peasant constrains to access financial capital. Peasant can’t often access financial institution because of collateral requirement. This study aims to analyze the institutional performance variability of agricultural credit and financial institutions and formulate models to support agricultural businesses in rural areas. The experiment was conducted in three regencies as Badung (Bali), Sleman (Yogyakarta) and Seluma (Bengkulu) from April 2011 to April 2012. Data sources consisted of secondary data at province (2008-2010) and primary data that take purposively from selected provinces, regencies and gapoktan. Peasants as samples were selected randomly from the association of peasants group (Gapoktan). The total sample of respondent was 90 people that receive PUAP grantees for rice farming. The results showed that credit institutional model for rural farming cen be formulated in three levels, namely the growth level model, development level model and Mandiri model. Growth level models consist of : a) Mentoring of farmers by extension staff in the borrowing plan while assisting in the management of savings and loan officers conducted by the fund group manager b) Collateral for the borrower is replaced with recommendation from village officials c) The existence of social/group/village sanctions for borrowers who do not repay their loans d) Only serve borrowers who originated from local
village e) savings and loan management performed by different management with gapoktan, but the supervision is held on gapoktan, and f) The existence of incentives for savings and loan fund managers. Development model is advance level of growth model with few additional elements, namely a) the existence of special savings for group capital accumulation, b) Incentives are also given to members who have special savings, c) Monitoring conducted by gapoktan board and village officials. While the Mandiri Model is an further level of growth and development model with additional elements financial institution must have legal entity and legal permit to conduct cooperation for business expand with other parties.

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