Judul: Induksi Pertumbuhan Mata Tunas Aksilar Aglaonema Pride Of Sumatera Secara In Vitro Melalui Penambahan Bap Dan 2,4-D
Abstrak: The research aimed to study the effect of plant growth regulator (BAP and 2,4-D) on the shoot bud growth of aglaonema Pride of Sumatera using axillary bud explant in vitro. This research was conducted from February 2010 to March 2011 at Laboratory of Plant Tissue Culture, Department of Agronomy and Horticulture IPB, Bogor. Completely Randomized Block Design was used in this research. The research consisted of two factors and three replications. The first factor is 2,4-D with two concentrations are 1 and 2 mg/l. The second factor is BAP with five concentrations are 2, 4, 6, 8, and 10 mg/l. The result showed that the treatment of BAP, 2,4-D, and the interaction between them are not significantly affected the number and the length of buds. The treatment of 6 mg/l BAP + 1 mg/l 2,4-D gave the fastest growth of shoot bud, that was 2.17 weeks. The optimal medium for axillary bud proliferation is 10 mg/l BAP + 2 mg/l 2,4-D, gave the highest number of bud (1 bud).
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Judul: Application of Growth Regulator Naphthalene Acetic Acid (NAA) on Growth and Production of Aglaonema Shoot Cuttings
Abstrak: Aglaonema merupakan tanaman hias famili Araceae. Perbanyakan pada aglaonema umumnya dilakukan menggunakan setek. Kendala perkembangbiakan menggunakan setek adalah pembentukan tunas dan pertumbuhan akar yang lambat. Upaya untuk mempercepat tumbuhnya akar dengan menambahkan ZPT jenis auksin. Penelitian ini bertujuan mendapatkan konsentrasi optimum dari zat pengatur tumbuh NAA terhadap pertumbuhan dan produksi aglaonema melalui metode perbanyakan setek pucuk. Penelitian dilakukan di Mekar Hurip Nursery, Desa Sukamantri, Kecamatan Tamansari, Kabupaten Bogor, Jawa Barat pada bulan Desember 2023 hingga Maret 2024. Rancangan percobaan penelitian yang digunakan RKLT faktorial dengan dua faktor. Faktor pertama ZPT NAA dan BAP dengan empat taraf (kontrol, 75 dan 150 ppm, 150 dan 150 ppm, 200 dan 150 ppm), sedangkan faktor kedua adalah kultivar aglaonema dengan empat taraf (Siam Aurora, Snow White, Sultan Brunei, dan Big Roy). Terdapat 16 kombinasi dengan lima ulangan dan setiap percobaan terdiri dari tiga tanaman. Data hasil pengamatan dianalisis menggunakan Microsoft Excel dan SAS menggunakan uji ragam F, apabila terdapat pengaruh nyata dilanjutkan uji lanjut menggunakan DMRT taraf a = 5%. Konsentrasi ZPT NAA yang menghasilkan pertumbuhan optimum yaitu 218 ppm pada kultivar Big Roy, 155 ppm pada kultivar Snow White, 102,25 ppm pada kultivar Sultan Brunei, dan 95,84 ppm kultivar pada Siam Aurora., Aglaonema is an ornamental plant of the Araceae family. The propagation of aglaonema typically involves using cuttings. The constraints of propagation using cuttings are the formation of shoots and slow root growth. Accelerate root growth by adding plant regulator type auxin. This study aims to obtain the optimum concentration of NAA growth regulator on the growth and production of aglaonema through the shoot cuttings propagation method. The research was conducted at the Mekar Hurip Nursery, Sukamantri Village, Tamansari District, Bogor Regency, West Java, from December 2023 to March 2024. The research experimental design used RKLT factorial with two factors. The first factor was NAA and BAP with four levels (control, 75 and 150 ppm, 150 and 150 ppm, 200 and 150 ppm), while the second factor was aglaonema cultivars with four levels (Siam Aurora, Snow White, Sultan Brunei, and Big Roy). There were 16 combinations with five replications; each experiment consisted of three plants. Observation data were analyzed using Microsoft Excel and SAS using the F test of variance to determine if there was a significant effect, followed by further tests using DMRT at the a = 5% level. The concentration of ZPT NAA that produces optimum growth is 218 ppm on the Big Roy cultivar, 155 ppm on the Snow White cultivar, 102.25 ppm on the Sultan Brunei cultivar, and 95.84 ppm on the Siam Aurora cultivar.
Keyword: Araceae, auxin, budding, ornamental plants, root

Judul: Algorithm Construction of HLI Hash Function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice