Analisis Diversitas Dan Paternitas Progeni F1 Hasil Persilangan Arumanis 143 X Mangga Merah Menggunakan Marka Mikrosatelit

Preferensi pasar terhadap mangga (Mangifera indica L.) yang bergeser dari buah berkulit hijau ke buah berkulit merah, telah mendorong dilakukannya program pemuliaan untuk merakit varietas yang sesuai. Balai Penelitian Tanaman Buah Tropika telah melaksanakan kegiatan persilangan Arumanis 143 x mangga merah dan telah menghasilkan 63 progeni F1. Penelitian ini bertujuan menganalisis diversitas dan paternitas tetua dan progeni menggunakan marka mikrosatelit. Penelitian dilaksanakan di Laboratorium Genetika Tumbuhan, Sekolah Ilmu dan Teknologi Hayati, Institut Teknologi Bandung dari bulan Mei 2009 sampai April 2010. Enam pasang primer berlabel 6-FAM dirancang dan disintesis untuk mengamplifikasi daerah mikrosatelit pada genom mangga. Hasil penelitian menunjukkan bahwa lokus yang digunakan memiliki tingkat informasi yang tinggi dan sesuai untuk studi keragaman mangga. Persilangan tetua berjarak genetik jauh menghasilkan progeni dengan keragaman yang tinggi antarprogeni maupun dengan tetua. Persilangan antara pasangan tetua yang berjarak genetik dekat menghasilkan progeni yang memiliki kedekatan jarak genetik terhadap salah satu tetua. Persilangan tetua resiprokal menghasilkan progeni yang memiliki jarak genetik berdekatan. Populasi tetua mangga menunjukkan tingkat heterozigositas yang tinggi sehingga secara umum progeni F1 hasil persilangan memiliki keragaman yang tinggi dan berpotensi menghasilkan varietas baru dari penggabungan karakter unggul Arumanis 143 dan mangga merah

Eleksi Dini Hibrida F1 Mangga Produktif Dan Berwarna Merah Berdasarkan Aktivitas Enzim Esterase Dan Kandungan Antosianin

. Jawal, M Anwarudin Syah, Sukartini, Sunarwati, D, Rebin, and Sutrisno, N 2012. The Early Selection of Mango Hybrids which Productive and Red Skin Fruit by Activity of Esterase Enzymes and Anthocyanin Content. The Arumanis 143 is a national superior mango cultivar which have a good quality and marketable, but the low productivity and green of skin fruit. The hybridization of Arumanis 143 cultivar with the productive cultivars and red skin mango is a method to improved the productivity and change the skin color to red on Arumanis cultivar. Early selection on productivity character and red skin color of mango based on esterase enzyme activity and anthocyanin content on hybrid F1 seedling by crossing Arumanis 143 with the productive cultivars and red skin mango. The research was conducted at Laboratory of Indonesian Tropical Fruits Research Institute Solok and Postharvest Research and Development Institute Bogor from January to December 2006. The objective of the research was to early selection of productivity character and red skin color of mango on 19 hybrids F1 by activities of esterase enzyme and anthocyanin content. The results analysis of esterase enzyme activity showed that there were five seedlings hybrids F1 which activity of esterase enzyme higher than standard (Keith) i.e. hybrid number 25, 33, 35, 47, and 50. Those five seedlings hybrid can be determined as productive candidate of Arumanis mango cultivars. The results analysis of anthocyanin content showed that there were four seedlings hybrids F1 which anthocyanin content higher than standard (Apel and Khirsapati Maldah) i.e. hybrid number 20, 25, 44, and 48. The four seedlings hybrid can be determined as red skin of mango candidate of Arumanis cultivars. The seedlings number 25 have high of esterase enzyme activity and anthocyanin content, thus could be determined as Arumanis cultivars which productive and red skin mango

Handover in a mobile wireless communication network –A Review Phase

Mobility is the features of mobile communication that makes it desirable by all and varied. The whole world is now attractive in wireless communication as it provides users' ability to communicate on-the-go. IT is accomplished by transferring users from a radio network to another. This process is called handover. Handover occurs by adjusting the duration of soft handovers, the size of the areas and either by cell crossing or by deterioration in the signal quality of the current channel — the brief overview of handover, Handover in WiMAX and LTE, types of handover, handover types solutions, usually used handover parameters, some methods employed in the literature and I contemporary the convergent fact for continuance in the area of mobile wireless communication Handover

Performance Comparison of Handover mechanisms in mobile wireless communication networks for Broadband Wireless Access Systems

Mobility is the mobile communication characteristics which make it diverse and attractive for all. Wireless communication is now attractive to the whole world and provides the ability of users to communicate very active. Transferring the users from one radio network to another is accomplishing the IT. The process is called the handover process. The transfer takes place by adjusting the duration of the soft transfers, the area size and either by cell crossing or by deterioration in the signal quality of the current channel — the brief overview of handover, Handover in WiMAX and LTE, types of handover, handover types solutions, approaches used in literature are typically transfer parameters and I contemporary the convergent fact for continuance in the area of mobile and wireless communication Handover

Analisis Keragaman Genetik 161 Aksesi Mangga Indonesia Menggunakan Marka Mikrosatelit

Mango is one of the fiveimportant fruit crops in the world. Microsatellite markers canbe used to analyze genetic diversity among mangoaccessions. The purpose of this research was to determinethe relationship among mango germplasm collection usingmicrosatellite markers. A total of 161 mango accessionsoriginated from Indonesian Tropical Fruit Research Institute(Cukurgondang Field Station), Pasuruan, East Java, wereused in this research. Twenty-six microsatellite markerswere used to genotype each accession. Genotyping wasconducted using Beckman Coulter® CEQ™ 8000 machine.Genetic relationship among accecions was analyzed usingthe Unweighted Pair Group Method with Arithmetic Mean(UPGMA) method, followed by bootstrap analysis. The resultshowed that high allele variation (15-75 alleles) wasobserved among mango accesions tested, with an averageallele number of 38.69. The average of PolymophismInformation Content (PIC) value was 0.548 (0.021-0.949).Fifteen microsatellite markers showed PIC value >0.5indicated that these markers were suitable for mangodiversity studies. Cluster analysis divided the mangocollections into two groups. Group I consisted of 95accessions, and group II consisted of 66 accessions. NinetyIndonesian indigenous mangos (84.11% of Indonesianmango accessions) could be separated from the introducedaccessions

Pengaruh Jumlah Mata Entres terhadap Pertumbuhan Benih Sambung Pucuk Tiga Varietas Mangga Komersial

Mango propagation by grafting usually uses scions 15-20 cm in length consisting of 3-4 buds. This method is less efficient because producing mass plant materials requires a considerable number of scion sources. To increase the efficiency of the scion use, grafting propagation technique with scions that have less than three buds (short scion) is needed. The research aimed to obtain information about the use of the most efficient number of scion bud(s) on mango propagation through grafting technique. The study was carried out at Cukurgondang Experimental Field, Pasuruan, East Java, from January to December 2018. The experiment was arranged in a factorial Randomized Block Design with two factors and three replications. The factor I was the number of buds on scion for grafting, consisting of 3 levels, i.e., P1 (1 bud), P2 (2 buds), and P3 (3 buds) as a control. Factor II was the variety of scion, consisting of 3 types, i.e., V1 (Garifta Merah), V2 (Agri Gardina 45), and V3 (Gadung 21). Each experimental unit consisted of 15 plant materials. The results indicated that there was no interaction between the number of scion bud(s) with the variety for all observational variables. Scion with 1 bud was the most efficient treatment compared to those with 2 and 3 buds for propagation by grafting. So that with the finding of useful technology in producing mango plant materials, the number of plant materials that can be provided in the same unit of time can be increased. Keywords: grafting, mango, propagation, scion bud   ABSTRAK Perbanyakan mangga dengan sambung pucuk biasanya menggunakan entres yang panjangnya 15-20 cm yang terdiri dari 3-4 mata tunas. Cara ini kurang efisien karena untuk memproduksi benih secara masal memerlukan sumber entres yang sangat banyak. Untuk meningkatkan efisiensi penggunaan entres maka diperlukan teknik perbanyakan sambung pucuk dengan menggunakan entres dengan jumlah mata kurang dari 3 mata (entres pendek). Penelitian bertujuan untuk mendapatkan informasi tentang penggunaan jumlah mata entres yang paling efisien pada perbanyakan mangga melaui teknik sambung pucuk. Penelitian dilaksanakan di Kebun Percobaan Cukurgondang, Pasuruan, Jawa Timur mulai Januari sampai Desember 2018. Percobaan disusun dalam Rancangan Acak Kelompok Faktorial dengan dua faktor dan tiga ulangan. Faktor I adalah jumlah mata entres untuk sambung pucuk terdiri dari tiga level, yaitu: P1 (1 mata), P2 (2 mata), dan P3 (3 mata) sebagai kontrol. Faktor II adalah varietas batang atas terdiri dari tiga level, yaitu: V1 (Garifta Merah), V2 (Agri Gardina 45) dan V3 (Gadung 21). Setiap unit percobaan terdiri dari 15 benih. Hasil penelitian menunjukkan bahwa tidak ada interaksi antara perlakuan jumlah mata entres dengan perlakuan varietas untuk semua parameter pengamatan. Entres satu mata merupakan perlakuan yang paling efisien dibandingkan dengan entres 2 dan 3 mata dalam perbanyakan mangga dengan sambung pucuk. Dengan diperolehnya teknologi yang efisien dalam memproduksi benih mangga, maka jumlah benih yang dapat diproduksi dalam satuan waktu yang sama menjadi lebih banyak. Kata kunci: mata entres, mangga, perbanyakan, sambung pucu