Judul: Regression Analysis of Harvesting Age (Generative Period) on Nutrition Value of Sorghum Plant (Sorghum bicolor L.)
Abstrak: Umur panen dapat menentukan nilai nutrien yang terkandung pada hijauan pakan ternak. Pemanenan dengan umur yang tua akan meningkatkan produktivitas, namun nilai nutrien yang terkandung akan makin turun dan kurang optimal. Bertujuan untuk mengetahui pengaruh umur panen terhadap nilai nutrisi pada tanaman sorgum. Data yang digunakan untuk mengkaji pengaruh umur panen terhadap nilai nutrisi pada tanaman sorgum (Sorghum bicolor) sebanyak 113 data dan di input pada Microsoft Excel. Data tersebut meliputi umur panen dan nilai nutrisi sorgum yang meliputi protein kasar, serat kasar, lemak kasar, abu, TDN, ADF, NDF, BETN, Ca, dan P. Kemudian data yang telah didapatkan dianalisis menggunakan analisis statistika deskriptif dan analisis regresi sederhana. Hasil penelitian menunjukkan bahwa umur panen berpengaruh signifikan pada ADF (P≤1; R2=0,13), NDF (P≤1; R2=0,13), serta BETN (P≤1; R2=0,93). Kata kunci: analisis regresi, umur panen, Sorghum bicolor. ABSTRACT MUTMAINNAH. Regression Analysis of Harvesting Age (Generative Period) on Nutrition Value (Generative Period) of Sorghum Plant (Sorghum bicolor L.) Supervised by NUR ROCHMAH KUMALASARI dan LUKI ABDULLAH. Harvesting time determine the value of nutrients content in the forage. Harvesting with in old age increase biomass productivity, but the value of the nutrients contained will decrease and be less than optimal. This study was to determine the effect of harvest age on the nutritional value of sorghum plants. The data was 113 secondary data and input in Microsoft Excel. The data includes harvest age and sorghum nutritional value which includes crude protein, crude fiber, crude fat, ash, TDN, ADF, NDF, BETN, Ca and P. Data were analyzed by descriptive statistical analysis and simple regression analysis. The results showed that harvest age had a significant effect on ADF (P≤1; R2=0.13), NDF (P≤1; R2=0.13), and BETN (P≤1; R2=0.93). Keywords: harvest age, regression analysis, Sorghum bicolor L.
Keyword: Harvesting Age, Regression Analysis, Sorghum bicolor L.

Judul: Effect of Harvest Ages on Production, Seeds Quality, Biomass of Sorghum of Varieties of Samurai 2
Abstrak: Tujuan dari penelitian ini adalah mengevaluasi produksi, kualitas benih, dan biomassa tanaman sorgum berdasarkan umur panen yang berbeda. Penelitian ini menggunakan tanaman sorgum varietas samurai 2 dan didesain menggunakan rancangan acak kelompok (RAK) dengan 4 perlakuan dan 5 ulangan. Data penelitian dianalisis menggunakan ANOVA, apabila berbeda nyata, dilakukan uji lanjut menggunakan uji Duncan Multiple Range Test (DMRT). Perlakuan umur panen tanaman sorgum terdiri dari 95 HST (U1), 100 HST (U2), 105 HST (U3), dan 110 HST (U4). Peubah yang diukur pada penelitian ini adalah kadar air benih, panjang malai, berat malai, berat kering malai, berat benih pipil, berat kering benih pipil, berat 1000 benih, dan viabilitas benih. Hasil penelitian menunjukkan perlakuan umur panen tanaman sorgum 105 HST signifikan meningkatkan berat benih dan berat 1000 benih. Perlakuan umur panen 105 HST juga signifikan meningkatkan viabilitas benih dan hasil terbaik pada hari ke 4 dan 7, serta biomassa produksi tertinggi., The aim of this study was to evaluate the production, seeds quality, and biomass of sorghum varieties of samurai 2 at harvest ages. This study used sorghum varieties of samurai 2 and designed a Randomized Block Design (RDB) with 4 treatments and 5 replication. The data were analyzed using ANOVA and any significant differences were further tested using Duncan Multiple Range Test (DMRT). Sorghum was harvested at the age of 95 DAH (U1), 100 DAH (U2), 105 DAH (U3), and 110 DAH (U4). The measured variable were moisture content of seed, panicle length, panicle weight, panicle dry weight, weight of pipil seed, dry weight of pipil seed, weight of 1000 seeds, and viability of seed. The results showed that the treatment of sorghum at 105 DAH significantyly increased weight of seed and weight of 1000 seeds. Furthermore, the treatment of sorghum at 105 DAH significantly increased viability of seed and get the best value of day-4 and day-7, and highest of biomassa production.
Keyword: harvest age, panicle, seed, sorghum, viability

Judul: Simulasi Protokol Autentikasi Pelanggan pada Voice Privacy
Abstrak: Existing design of the telephone public network is susceptible to eavesdropping on its voice stream. Consequently, any wire taper can listen to supposedly private conversation. In order to prevent such eavesdropping, we propose a protocols and its implementation for end-to-end voice privacy authenticate as a service available for interested subscribers. Our protocols consist of customer enrollment system, customer authentication system and simulation voice privacy. Protocols that we made are adaptation from Sharif and Wijekesera journal with the title Providing Voice Privacy as a Service over the Public Telephone Network. The result of the process shows how the customer enrolls and how the system process the password, how the system authenticate customer simulate voice privacy.
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