Judul: Multicanopy Cultivation of Four Rice Varieties with Jajar Legowo Planting Distances at KP Babakan Dramaga
Abstrak: Padi (Oryza sativa) merupakan salah satu tanaman pangan terpenting di Indonesia. Peningkatan konsumsi beras tidak sebanding dengan luas panen di Indonesia. Penelitian ini bertujuan mempelajari pengaruh sistem budidaya dan varietas terhadap peningkatan produksi padi di Kebun Percobaan Sawah Baru IPB, Babakan Dramaga. Penelitian ini menggunakan RKLT faktorial dengan dua faktor yaitu sistem budidaya (monokultur, multikanopi sisip 1, multikanopi sisip 2) dan varietas (INPARI 32, INPARI 33, INPARI 43, IPB 9G sebagai tanaman sisipan). Hasil penelitian menunjukkan bahwa terdapat interaksi kedua perlakuan yang berpengaruh pada tinggi tanaman saat berumur 8 MST, tinggi batang saat panen, sudut kemiringan daun bendera. Pengaruh tunggal sistem budidaya signifikan terhadap tinggi tanaman padi saat berumur 8 MST, jumlah anakan, panjang daun dan sudut kemiringan daun bendera, bobot kering tajuk dan bobot kering malai saat panen, jumlah malai per rumpun, jumlah gabah isi per malai, bobot gabah per rumpun. Pengaruh tunggal varietas signifikan terhadap tinggi tanaman, jumlah anakan, panjang daun dan sudut kemiringan daun bendera, bobot kering malai, panjang malai, jumlah gabah per malai, jumlah gabah isi per malai, bobot 1000 butir, dan bobot gabah per rumpun., Rice (Oryza sativa) is one of the most important food crops in Indonesia. The increase in rice consumption is not proportional to the harvested area in Indonesia. This study aims to study the effect of cultivation systems and varieties on increasing rice production in the Experimental Garden of Sawah Baru IPB, Babakan Dramaga. This study used a factorial RKLT with two factors, namely the cultivation system (monoculture, multi-canopy insertion 1, multi-canopy insertion 2) and varieties (INPARI 32, INPARI 33, INPARI 43, IPB 9G as insertion plant). The results showed that there was an interaction between the two treatments that affected plant height at 8 WAP, stem height at harvest, flag leaf tilt angle. The single effect of the cultivation system was significant on rice plant height at the age of 8 WAP, number of tillers, leaf length and angle of inclination of flag leaves, crown dry weight and panicle dry weight at harvest, number of panicles per clump, number of filled grain per panicle, grain weight per clump. The single varietal effect was significant on plant height, number of tillers, leaf length and angle of inclination of flag leaf, panicle dry weight, panicle length, number of grain per panicle, number of filled grain per panicle, 1000 grain weight, and grain weight per clump.
Keyword: insertion, interaction, monoculture, production, productivity

Judul: Growth and Production of Inpari 32 and Inpari 33 Rice Varieties with IPB 3S Variety Inserts In Multicanopy Cultivation System
Abstrak: Multikanopi padi merupakan teknik penanaman pada petak tanam yang sama menggunakan varietas dengan tinggi tanaman berbeda yaitu varietas pendek dan tinggi. Penelitian ini bertujuan mengkaji pertumbuhan dan produksi padi varietas Inpari 32 dan Inpari 33 dengan sisipan varietas IPB 3S pada sistem budidaya multikanopi. Penelitian dilaksanakan di Kebun percobaan BBPadi Sukamandi, Kecamatan Ciasem, Kabupaten Subang, Jawa Barat. Rancangan penelitian ini menggunakan rancangan kelompok lengkap teracak (RKLT) faktorial dengan dua faktor yaitu varietas dan sistem budidaya. Faktor varietas meliputi Inpari 32 dan Inpari 33 dan faktor sistem budidaya meliputi multikanopi sisip 1, multikanopi sisip 2, dan monovarietas dengan 6 kali ulangan. Hasil penelitian menunjukkan bahwa terdapat interaksi pada peubah pengamatan jumlah anakan umur 6 Minggu Setelah Tanam (MST). Perlakuan varietas berpengaruh terhadap jumlah anakan, panjang malai, jumlah gabah per malai, dan bobot 1000 butir. Sedangkan perlakuan sistem budidaya berpengaruh terhadap jumlah anakan, fotosintesis, dan bobot kering malai. Hasil produksi tertinggi varietas Inpari 32 diperoleh menggunakan budidaya monovarietas (4,26 ton ha-1), sedangkan potensi hasil tertinggi pada varietas inpari 33 dengan budidaya multikanopi sisip 2 (9,55 ton ha-1)., Rice multicanopy is a planting technique on the same planting plot using different plant height varieties, namely short and tall varieties. This study aims to examine the growth and production of rice varieties Inpari 32 and Inpari 33 with the insertion by the IPB 3S variety in the multicanopy cultivation system. The research was carried out at the ICRR (Indonesian Center for Rice Research) Sukamandi, Ciasem District, Subang Regency, West Java. The design of this study used a facktorial complete randomized block design with two factors, namely varieties and cultivation systems. Variety factors include Inpari 32 and Inpari 33 and cultivation system factors include multicanopy insert 1, multicanopy insert 2, and monoculture with 6 replications. The results showed that there was an interaction in the observation of number of tiller at 6 weeks after planting (WAP). Varietal treatment affects the number of tiller, the length of the panicles, the amount of grain per panicle, and the weight of 1000 grains. Meanwhile, the treatment of the cultivation system affected the number of tiller, photosynthesis, and the dry weight of panicles. The highest yields of Inpari 32 varieties were obtained using monovariety cultivation (4.26 tons ha-1), while the highest yield potential in the Inpari 33 variety with multicanopy cultivation of insertion 2 (9.55 tons ha-1).
Keyword: Monovariety, Multicanopy, Varieties

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave