Judul: Growth Rate and Production of Longevity Spinach Plants From Different Parts of Stem Cuttings
Abstrak: Tumbuhan sambung nyawa potensial sebagai hijauan pakan ternak dilihat dari kandungan senyawa nya. Diperlukan optimasi perbanyakan tumbuhan berbasis stek. Tujuan penelitian untuk mengevaluasi tingkat pertumbuhan dan produksi tumbuhan sambung nyawa dari bagian stek batang yang berbeda. Penelitian didesain menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 3 perlakuan (stek bawah, stek tengah, dan stek atas). Masing-masing diulang sebanyak 50 kali. Data di analisis menggunakan analisis ragam (ANOVA), jika terdapat beda nyata (p<0,05) dilakukan uji lanjut Duncan. Hasil penelitian menunjukan bahwa perlakuan bagian stek atas dapat meningkatkan jumlah tunas dan waktu awal tumbuh tunas. Perlakuan bagian stek yang berbeda tidak berpengaruh terhadap tinggi tanaman, jumlah daun, jumlah daun layu, produksi tanaman. Tumbuhan sambung nyawa dapat dibudidayakan dari setiap bagian stek dengan kondisi lingkungan yang terkendali., Longvity spinach has potency as animal forage because of its compound content. Optimization of plant propagation based on cuttings is needed. The study aim was to evaluate plant the growth rate and production from different parts of stem cuttings. The study was designed using a completely randomized design (CRD) which consisted of 3 treatments (bottom cuttings, middle cuttings and top cuttings). With repeated 50. Data were analyzed using analysis of variance (ANOVA), if there was a significant difference (p<0.05) Duncan's further test was carried out. The results showed that the treatment of the top cuttings could increase the shoots numbers and the initial time of shoot growth. Different cuttings stem did not affect on plant height, number of leaves, number of wilted leaves, and plant production. In concluded that longevity spinach plants could be cultivated from each part of the cuttings in controlled condition
Keyword: longevity spinach plants, growth, production, stem cuttings

Judul: Evaluation of Growth and Production of Sambung Nyawa at Different Harvesting Ages
Abstrak: Penelitian ini bertujuan mengevaluasi pertumbuhan dan produksi sambung nyawa pada umur panen yang berbeda. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 4 kelompok terdiri dari 3 perlakuan. P1= Umur panen 40 hari, P2= Umur panen 50 hari, dan P3= Umur panen 60 hari. Pubah yang diamati meliputi pertumbuhan tanaman (pertumbuhan tinggi, jumlah cabang, dan jumlah daun) dan produksi tanaman (berat segar, berat kering, dan luas daun). Data dianalisis menggunakan ANOVA dan apabila berbeda nyata (p<0,05) akan dilanjut dengan uji Duncan. Hasil penelitian menunjukkan perlakuan perbedaan umur panen mempengaruhi (p<0,05) pertumbuhan tinggi, jumlah daun, berat segar batang, berat segar daun, total biomassa berat segar, berat kering batang, berat kering daun, berat kering pucuk, dan total biomassa berat kering. Perlakuan perbedaan umur panen tidak mempengaruhi (p>0,05) jumlah cabang, luas daun, luas pucuk, dan berat segar pucuk. Hasil penelitian menunjukkan bahwa perlakuan umur panen 60 hari (P3) memberikan hasil terbaik pada pertumbuhan dan produksi biomassa tanaman sambung nyawa., This study aims to evaluate the growth of plant height and plant production with differentharvesting ages. This study used a Randomized Group Design (RAK) with 4 groups consisting of 3 treatments. P1= 40 days harvest age, P2= 50 days harvest age, and P3= 60days harvest age. The variables observed included plant growth (height growth, number of branches, and number of leaves) and plant production (fresh weight, dry weight, and leaf area). Data were analyzed using ANOVA and if significantly different (p<0.05) willbe continued with Duncan test. The results showed that the treatment of different harvestages affected (p<0.05) the growth of height, number of leaves, stem fresh weight, leaf fresh weight, total biomass fresh weight, stem dry weight, leaf dry weight, shoot dry weight, and total biomass dry weight. The treatment of different harvest ages did not affect (p>0.05) the number of branches, leaf area, shoot area, and shoot fresh weight. Theresults showed that the 60-day harvest age treatment (P3) gave the best results on plant growth and plant biomass production.
Keyword: growth, Gynura procumbens, harvesting, harvesting age, production

Judul: Sistem Pengklasifikasian Entitas pada Pesan Twitter Menggunakan Ekspresi Regular dan Naïve Bayes
Abstrak: The widespread use of social networks like Twitter encourages some institutions to find out the entities that are discussed and the sentiment toward the entities. This research aims to build a system that can extract entities in tweets and classify the sentiment from the tweets. Entity extraction process is done using regular expressions. Writing regular expressions can capture the diverse entities. Sentiment classification is performed using naïve Bayes classification with Multinomial and Bernoulli models. Sentiment in this research consists of three classes, namely positive, negative, and neutral. Before entering the classification, tweets are normalized by replacing the non-standard words with the standard ones. The test results show that regular expression is quite effective for the entity extraction process. As for the results of the classification, naïve Bayes method produces high accuracy (96.75% for Multinomial and 96.33% for Bernoulli). However, the accuracy obtained depends on the neutral class which amounts to 97.88% for Multinomial and 99.95% for Bernoulli, while the positive class are 85.66% and 33.13% and negative class are 33.67% and 0%.
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