Judul: Pengaruh Pemberian Paclobutrazol terhadap Pertumbuhan Planlet Anggrek Dendrobium lasianthera pada Tahap Aklimatisasi.
Abstrak: The objective of this research was to determine the effect of paclobutrazol to orchid Dendrobium lasianthera planlet in acclimatization stage. The research was conducted in green house, Cikabayan Department Agronomi and Horticulture IPB Dramaga, Bogor from Oktober to December 2011. The research was arranged in Completely Randomized Design, with paclobutrazol as a treatment.There were five concentration of paclobutrazol; 0, 5, 10, 15, and 20 ppm. Each treatment was repeated five times and number each treatment has 25 unit experiment. Each unit treatment has 10 planlet to grow, so total planlet in experiment is 250 planlet. The result from this research showed that the effect of application paclobutrazol was not significant for percent to grow, lenght leaf, colour leaf, number of root, length root, diamtre of root, plant height, number of shoot, diameter cell palisade, and weight of fresh plant. The range chlorophyl (a+b) is 0.4296 until 0.8477 mg/g, and the range number of cell palisade is 229.35 until 346.58/ mm2, The density of stomata is 50.96 until 86.64/ mm2.
Keyword: 

Judul: Respon Planlet Anggrek Dendrobium spectabile pada Pemberian Beberapa Taraf Paclobutrazol selama Tahap Aklimatisasi
Abstrak: The objective of this research was to determine the effect of paclobutrazol on Dendrobium spectabile planlet in acclimatization phase. This research used a complete randomized block design, with paclobutrazol concentration as treatment. There were eight level of paclobutrazol concentrations used 0 ppm, 10 ppm with twice and four times spraying, 20 ppm with twice and four times spraying, 30 ppm with twice and four times spraying, and 20 ppm pre soaked treatment. Each treatment repeated four times, so it consist of 32 units experiment. The result from this research are showed significant effect of paclobutrazol concentration application on planlet survived percent, length of the leaf, number of root, number of palisade cell, plant height, and thickness of leaf. The best response was shown by application of sprayed 30 ppm paclobutrazol four times. That showed 100% percentage of plantlets grown, the highest number of roots, the largest palisade cell, and the highest leaf thickness.
Keyword: 

Judul: Konstruksi Persamaan Friedmann Alam Semesta Friedmann-Lemaitre-Robertson-Walker Termodifikasi Materi Gelap Superfluida
Abstrak: Kosmologi merupakan salah satu objek kajian dari teori relativitas umum. Salah satu model dalam kosmologi adalah model kosmologi Friedmann. Model kosmologi Friedmann dibangun berdasarkan asumsi bahwa materi dan energi terdistribusi secara homogen dan isotropik di alam semesta. Teori relativitas umum dapat dimodifikasi melalui pendekatan teori materi gelap superfluida (MGS). Persamaan medan Einstein untuk teori MGS dapat dirumuskan melalui prinsip aksi dengan memodifikasi Lagrangian pada aksi teori MGS. Selanjutnya dengan memilih metrik Friedmann-Lemaitre-Robertson-Walker (FLRW) datar dengan indeks kurvatur sama dengan nol, dapat dibangun suatu bentuk persamaan Friedmann yang dimodifikasi teori MGS.
Keyword: kosmologi, teori materi gelap superfluida, persamaan medan Einstein, metrik FLRW, persamaan Friedmann.