Kandungan sukrosa, kandungan fosfat anorganik (Pi) dan kandungan thiol merupakan analisa diagnosa lateks yang berkaitan dengan kemampuan tanaman karet dalam pembentukan lateks. Penelitian ini bertujuan untuk melihat pengaruh usia tanaman karet terhadap analisa diagnosa lateks pada klon RRIM 921 pada usia tanaman karet dari usia 5 tahun sampai 24 tahun. Panel sistem sadap tanaman karet terdiri dari panel sistem sadap sorong (BO) pada usia tanaman 5 tahun sampai 12 tahun sedangkan panel sistem sadap tarik (HO) pada usia tanaman dari 16 tahun hingga 24 tahun (satu siklus tanaman karet). Potensi dan produktivitas latex dari tanaman karet tertinggi diperoleh sebanyak 4,8 kg/pohon dan 2401 kg/ha/tahun pada usia tanaman 15 tahun dengan panel sistem sadap HO1. Kandungan sukrosa maksimum diperoleh sebesar 9,9mM pada usia tanaman 15 tahun dengan panel sistem sadap HO1. Kandungan Pi tertinggi sebesar 26.5mM diperoleh pada usia tanaman karet 9 tahun dengan panel sistem sadap BO2. Kandungan thiol paling tinggi sekitar 0,98mM diperoleh pada usia tanaman karet 7 tahun dengan sistem panel sadap BO1.3. Selanjutnya maksimum DRC diperoleh sebesar 46,8% pada usia tanaman karet 14-16 tahun dengan panel sistem HO1 dan HO2.
Decreasing of energy consumption for buildings has become a common issue in many countries. This makes rising in the importance of having an effort to conserve the energy use for consumption. Energy audit is a starting point to have the conservation energy effort. With energy audit, the energy consumption pattern of a system could be achieved and the scheme for decreasing energy consumption could be drawn. Higher education institution should be the agent to implement the energy conservation in society. This paper is aim to have energy audit and energy consumption pattern in ITERA especially for building A and B. With the result, a scheme for energy consumption in building A and B is presented. Both building is categorized as efficient enough in its energy consumption. Electrical energy used for air conditioner is the highest energy consumption for both building. Some proposed scheme for reducing energy consumption includes replacement for more energy efficient equipment and a better planning on people's scheduling on each building.
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