Judul: Yield Evaluation Cayenne Pepper Gamma Rays Irradiation
Abstrak: Tingkat konsumsi cabai rawit bulanan yang tetap tidak diikuti dengan produksi yang stabil sepanjang tahun, menyebabkan fluktuasi harga dan mempengaruhi inflasi nasional. Pendekatan mutasi dapat digunakan untuk mengembangkan varietas baru yang memiliki hasil yang stabil. Penelitian ini bertujuan memperoleh informasi mengenai karakter kuantitatif berupa daya hasil dan kualitatif pada tiga genotipe cabai rawit generasi M2 induksi mutasi sinar gamma yang dibandingkan dengan genotipe yang telah ditetapkan. Genotipe tersusun berdasarkan rancangan kelompok lengkap teracak (RKLT) faktor tunggal. Hasil analisis sidik ragam menunjukkan bahwa genotipe berpengaruh sangat nyata terhadap semua karakter kuantitatif dan nyata pada karakter lebar tajuk. Genotipe CHM 6 memiliki karakter daya hasil seperti bobot buah per tanaman, jumlah buah per tanaman, dan produktivitas lebih tinggi dibandingkan dengan semua genotipe uji dan beberapa pembanding. Sementara itu, genotipe CHM 7 memiliki karakter umur berbunga dan panen lebih cepat dibandingkan dengan semua genotipe uji maupun pembanding. Hasil analisis korelasi menunjukkan bahwa bobot buah per tanaman dipengaruhi oleh jumlah buah per tanaman., Flat monthly cayenne pepper consumption rate not followed by stable production along a year, causing price fluctuation and affecting national inflation. The mutation approach can be used to develop new varieties having stable yields. This study aimed to get information on quantitative and qualitative characters of three genotypes of M2 generation cayenne pepper induced by gamma-ray irradiation compared with established genotypes. The genotypes are arranged under a single factor randomized complete block design (RCBD). The results of variance analysis showed that genotype had a very significant effect on all quantitative characters and a significant effect on canopy width. Genotype CHM 6 had yield characteristics such as total fruit weight per plant, number of fruits per plant, and higher productivity than all test and comparison genotypes. Meanwhile, genotype CHM 7 had a faster flowering and harvesting age than all test and comparison genotypes. The results of the correlation analysis showed that the total fruit weight per plant was influenced by the number of fruits per plant.
Keyword: M2 generation, Yield, Quantitative character, Qualitative character

Judul: Yield Performance Test of Second Generation Chili Pepper Mutants Induced by Gama Ray Irradiation
Abstrak: Cabai merupakan salah satu produk hortikultura yang memiliki potensi besar dan sangat penting dalam menunjang kehidupan sehari-hari karena memiliki banyak manfaat misalnya sebagai olahan sambal dan juga dapat dikonsumsi langsung. Penelitian ini bertujuan untuk menguji daya hasil dan keragaman genetik populasi M2 cabai rawit (Capsicum annuum L.) hasil induksi mutasi sinar gamma berdasarkan pengamatan fenotip. Penelitian dilaksanakan di Kebun Percobaan Pasir Kuda IPB, Bogor, pada bulan September 2023 hingga Februari 2024, menggunakan Rancangan Kelompok Lengkap Teracak faktor tunggal. Sebanyak 14 genotipe cabai rawit M2 dan 2 varietas pembanding (Pelita dan Bara) diuji dengan tiga ulangan, sehingga terdapat 48 satuan percobaan. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang nyata pada karakter tinggi tanaman, bobot per buah, dan jumlah biji per buah. Tinggi tanaman berkisar antara 44,26 cm (Bara) hingga 66,39 cm (HTCrh-2). Bobot per buah tertinggi dicapai oleh varietas Pelita, sedangkan bobot terendah ditemukan pada HTCrh-1. Jumlah biji per buah berkisar antara 35,16 (HTCrh-5) hingga 61,7 (Pelita)., Chili is one of the horticultural products with great potential and significant importance in daily life due to its many benefits, such as being used in chili sauce preparation and being consumed directly. This study aims to evaluate the yield and genetic diversity of M2 chili pepper (Capsicum annuum L.) population induced by gamma-ray mutation based on phenotypic observations. The research was conducted at the Pasir Kuda Experimental Garden, IPB, Bogor, from September 2023 to February 2024, using a single-factor Completely Randomized Block Design. A total of 14 M2 chili pepper genotypes and 2 comparison varieties (Pelita and Bara) were tested with three replications, resulting in 48 experimental units. The results showed significant differences in plant height, fruit weight per fruit, and the number of seeds per fruit. Plant height ranged from 44.26 cm (Bara) to 66.39 cm (HTCrh-2). The highest fruit weight per fruit was achieved by the Pelita variety, while the lowest fruit weight was found in HTCrh-1. The number of seeds per fruit ranged from 35.16 (HTCrh-5) to 61.7 (Pelita).
Keyword: potential variety, agricultural productivity, corelation

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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