Judul: Growth, Production of phenolics and Flavonoids Adenostemma platyphyllum in Different Cow Manure
Abstrak: Penelitian ini bertujuan mendapatkan dosis pupuk kandang sapi terbaik berdasarkan pertumbuhan tanaman, produksi kadar fenolik dan flavonoid optimal pada budidaya legetan warak (Adenostemma platyphyllum). Percobaan menggunakan rancangan Acak Kelompok 1-faktor, yaitu dosis pupuk kandang sapi 0, 5, 10, 15, dan 20 ton ha-1. Kandungan fenolik total ditetapkan menggunakan pereaksi Folin-Ciocalteu, dan untuk flavonoid total menggunakan pereaksi AlCl3. Kadar fenolik total tertinggi ditemukan pada tanaman tanpa pemberian dosis pupuk (0 ton ha-1), sedangkan kadar flavonoid total optimum dengan dosis pupuk 15 ton ha-1. Dosis pupuk kandang sapi 20 ton ha-1 merupakan dosis yang tepat untuk pertumbuhan tanaman karena menghasilkan tanaman tertinggi, dan jumlah daun, serta jumlah cabang terbanyak dibandingkan tanaman dengan perlakuan lainnya., This study aims to obtain the best dose of cow manure for plant growth, production of phenolic levels, and optimal flavonoids in the cultivation of legetan warak (Adenostemma platyphyllum). The experiment used a randomized 1-factor group design: cow manure doses of 0. 5, 10, 15, and 20 tons of ha-1. The total phenolic content was determined using Folin-Ciocalteu reagent and for total flavonoids using AlCl3 reagent. The highest total phenolic levels were found in plants without fertilizer (0 tons ha-1), while the optimum total flavonoid content with a fertilizer dose of 15 tons ha-1. A dose of cow manure of 20 tons ha-1 is the best dose for plant growth because it produces the highest crop, the number of leaves, and the number of branches compared to plants with other treatments
Keyword: Adenostemma platyphyllum, total phenolics, total flavonoids, cow manure, plant growth

Judul: Plant Growth, Phenolics and Flavonoids Production of Adenostemma platyphyllum at Different Concentrations of Hydroponic Solutions in the Wick System
Abstrak: Adenostemma platyphyllum, known as legetan warak, is a weed with various benefits but has not been widely cultivated. This work aims to obtain the optimum concentration of a nutrient solution (AB mix) to produce optimum growth, phenolic and flavonoid levels in the cultivation of legetan warak using a hydroponic wick system. A one-factor randomized block design was employed in the form of different concentrations of the AB mix nutrient solution. The concentration of 900 ppm gave best growth, although it was not significantly different from concentrations of 700, 1100, and 1300 ppm. The highest total phenolic and flavonoid levels were in plants without additional nutrient solutions, but the highest phenolic and flavonoid productivity was found in plants with a nutrient solution concentration of 900 ppm. Therefore, the optimum concentration of nutrient solution to produce optimum plant growth, phenolic and flavonoid levels in legetan warak cultivation by hydroponic wick system was the concentration of 900 ppm.
Keyword: Adenostemma platyphyllum, hydroponic, legetan warak, total flavonoids, total phenolics

Judul: Formulasi Hamiltonian untuk Menggambarkan Gerak Gelombang Soliter Dimensi Tiga di Permukaan Laut
Abstrak: Gelombang permukaan adalah gelombang yang terjadi perbedaan rapat massa antara air dan udara. Salah satu gelombang permukaan yang ditinjau adalah gelombang soliter. Formulasi gelombang soliter dilakukan dengan menggunakan formulasi Hamiltonian.
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