Judul: Respon Pertumbuhan dan Produksi Padi Gogo terhadap Pengembangan Sumber Daya Air Tanah
Abstrak: This research which titled growth response and production of upland rice on soilwater resources development aim to increase productivity of upland rice and studied the influence of soilwater resources development to the growth and production of upland rice. It was held in Diploma Experimental Farm of Bogor Agriculture University, Gunung Gede, Bogor on October 2013 until Januari 2014. The method used randomized complete block design with 3 replicatios and 1 factor of organic mulch applied with 5 treatment. The treatments were full tillage (M1), strip tillage (M2), strip tillage with application of organic mulch on the ground level (M3), strip tillage with application of organic mulch below the ground level (M4), strip tillage with application organic mulch in the top and below the ground level (M5). The results showed that growth response and production of upland rice impacted to the height of plant and dry matter weight. The treatment of M4 was selected as the treatment can increase the dry matter weight.
Keyword: upland rice, soilwater, organic mulch

Judul: Studi Karakter Morfologi dan Fisiologi yang Berkaitan dengan Efisiensi Pemakaian Air Varietas Padi Gogo
Abstrak: The demand for food consumption of rice increased with the increasing population, while recently wetland experiencing a great reduction. Therefore, dry land cultivation has been developed, including cultivation of upland rice. Dry land crop management in general is constrained by the availability of water, because source of water are only the rain and the soil's ability to retain water. Upland rice cultivation required specific cultivation, particularly the use of crop varieties that have good water-use efficiency or varieties of plants that are able to adapt to the conditions of limited water availability. Research on morphological and physiological studies related to water use efficiency of upland rice varieties need to be developed in order to create optimum utilization of dry land. The research was conducted from October 2013 to April 2014 in the greenhouse IPB Experimental Station Cikabayan, Bogor. The research design was arranged in factorial experiment and using a randomized block design. The first factor was 5 upland rice varieties (Inpago 5, Batutegi, Jatiluhur, Inpago 8 and Sarinah). The second factor was 4 irrigation intervals which were 3, 6, 9, and 12 days. Thus there are 20 combinations of treatment. Each treatment was repeated 3 times and each experimental unit consisted of 3 media so that overall there are 180 growing media. Each planting medium consisted of three plant sample (one family). Plants in polythene bags are used as destructive plants, and were observed at the time of entry phase of the vegetatife phase and the generative phase based on the characteristics of each variety. Plants in buckets are used for the measurement of growth until the generative phase. Characteristics that assosiated with water saving of upland rices were higher plant height, longer panicle, larger roots volume, narrower leaves, higher evapotranspiration, faster flowering phase, greener leaves, higher number of leaves and tillers, heavier dry matter, higher number of grains, heavier 100 grain weight and dry weight of grains. The fraction of available absorbed water at panicle inisiation, flowering inisiation and harvesting phase was 83.36%, 137.14% and 116.65%, respectively, to obtain dry grains of 3.39 ton ha-1. Productivity of each variety at intervals of 3 days irrigation was 3.80 ton ha-1 (Inpago 5), 3.27 ton ha-1 (Batutegi), 3.86 ton ha-1 (Jatiluhur), 3.91 ton ha-1 (Inpago 8) and 2.12 ton ha-1 (Sarinah).
Keyword: Batutegi, evapotranspiration, productivity, water fraction

Judul: Transisi Fasa Materi Hadronik ke Materi Kuark pada Inti Bintang Neutron.
Abstrak: Bintang neutron terdiri dari beberapa lapisan yang disusun oleh materi nuklir yang berbeda dengan kerapatan yang semakin tinggi ketika mendekati pusat bintang. Inti luar bintang neutron disusun oleh materi hadronik (nukleon, lepton, dan hyperon), sedangkan inti dalam bintang neutron disusun oleh kuark-kuark bebas (up, down, strange) yang saling berinteraksi. Tujuan penelitian ini adalah mempelajari bagaimana transisi dari inti luar ke inti dalam bintang neutron dengan menggunakan pendekatan RMF (Relativistic Mean Field) untuk materi hadronik dan CIDDM (Confined Isospin Density Dependent Mass) untuk materi kuark. Tekanan transisi diperoleh ketika potensial kimia barion materi hadronik dan materi kuark bernilai sama. Nilai tekanan transisi dengan parameter SU6-TM1 sekitar 87 MeV/fm3 dan diperoleh massa maksimum bintang neutron yaitu 1.92M dengan jari-jari sekitar 8.62 km. Nilai tekanan transisi dengan parameter SU6-G2 sekitar 53 MeV/fm3 dan massa maksimum bintang neutron yaitu 1.88M dengan jari-jari sekitar 8.16 km. Jenis transisi fasa adalah orde satu ditandai dengan diskontinuitas dalam kerapatan energi (adanya mixed phase). Parameter-parameter pada model nuklir yang digunakan menyebabkan perbedaan kekakuan persamaan keadaan (EOS) dari materi hadronik dan materi kuark sehingga nilai tekanan transisi dari fasa hadronik ke fasa kuark juga berbeda.
Keyword: bintang neutron, persamaan keadaan, transisi fasa