Judul: Keberhasilan Okulasi Jeruk Manis 'Ansui' (Citrus Sinensis (L.) Osbeck) Pada Batang Bawah Jeruk Rough Lemon (Citrusjambhirilush) Yang Berbeda Umur Dan Cara Penanamannya
Abstrak: dipotong 1 cm diatas tempelan dengan posisi miring. Pengamatan dilakukan dari 2 MSO sampai 12 MSO. Peubah keberhasilan okulasi yang diamati adalah tolak ukur persentase okulasi hidup, saat 50 % pecah tunas, persentase okulasi dorman, persentase okulasi mati, persentase bibit jadi, panjang tunas, jumlah daun, dan diameter tunas. Hasil pereobaan satu dimana batang bawah RL ditanam di Iapang, umur batang bawah tidak memberikan pengaruh terhadap semua peubah yang diamati. Pereobaan dua dimana batang bawah RL ditanam di polibag menunjukkan bahwa kedua umur batang bawah tidak mempengaruhi persentase okulasi hidup, saat 50 % peeah tunas, persentase okulasi dorman, persentase okulasi mati dan persentase bibit jadi, tetapi berpengaruh terhadap panjang tunas, jumlah daun dan diameter tunas. Batang bawah RL umur 12 bulan memberikan respon yang lebih baik pada 12 MSO dibandingkan pada batang bawah RL umur 8 bulan pada pertambahan dan pertumbuhan panjang tunas, jumlah daun dan diameter tunas.
Keyword: 

Judul: Pertumbuhan Bibit Jeruk Keprok (Citrus nobilis) Hasil Okulasi pada Berbagai Media Tanam dan Umur Batang Bawah Rough Lemon (Citrus jambhiri Lush)(
Abstrak: The objective of this research was to study Citrus nobilis budding seed development on various growing medium and age of Citrus jambhiri Lush rootstock. The research was conducted in BPTP experimental garden, Cipaku, Bogor from November 2011 to May 2012. The research was consisted of two experiment, i.e. experiment before budding and experiment after budding. The design of experiment was complete randomized groups with two factors and three replications. The first factor was the growing medium that consists of soil, charcoal husk, sheep’s manure, compost, and vermi-compost. The second factor was the age of Rough Lemon citrus rootstock i.e. 8 , 11, and 14 months. The results showed that the highest wet and dry weight of root were found in the plant which planted in the growing media of (soil: charcoal husk: compost or vermicompost) mixture. The best weight of wet and dry root were found in the age of citrus rootstock 8 months. The best height and diameter of Rough Lemon rootstock were found in the age of citrus rootstock 11 months. The growing media of (soil: charcoal husk: vermicompost) mixture was the best media to Citrus nobilis scion budding development. The best Citrus nobilis scion budding development were found in the age of citrus rootstocks 11 months which adapted during 3 months in the growing media. The best percentage of sprout bud, percentage of dormant bud, increase of length bud, length of bud, length of leaves, and width of leaves were found in the age of citrus rootstock 11 months which adapted during 3 months in the growing media of (soil: charcoal husk: vermicompost) mixture.
Keyword: 

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
Keyword: