Judul: Evaluasi daya hasil tujuh jagung hibrida dan pendugaan parameter genetiknya
Abstrak: The objective of this research was to evaluate yield potential of seven hybrid maize genotypes from Balai Penelitian Serealia (BALITSEREAL) Maros (Maros Centre for Cereal Research) with five commercial varieties and to estimate the heritability value of the hybrid maize characteristics. The genotypes used in this experiment were B11-126/Mr15, CA00102-BBB/Mr15, E54-2-BBB/Mr15, N153/Mr15, N226/Mr15, (161/Nei9008-2)Mr15, (161/Nei9008-1)/Mr15, while comparing varieties were Bima-2, Bima-3, Bima-5, Bisi-16 and P21. The research was conducted on-farm at Pabuaran Village, Bogor on September 2009 to January 2010. This research used Randomized Complete- Block Design, single factor using four replications. The result showed that genotype N153/Mr15 produced higher total dry kernel weight and total dry grain weight than comparing varieties. Meanwhile, there were two genotypes with potential vegetative and yield characteristics, i.e. CA00102-BBB/Mr15 and E54-2-BBB/Mr15. Three of them were recommended to be evaluated in other locations (multi-location trial). Characteristics with high heritability values were days to anthesis, days to receptive, plant height, ear height, stem diameter, middle ear diameter, end ear diameter, base ear diameter, ear length, number of kernel rows, number of kernel/ear, total dry ear weight, total dry kernel weight and kernel/ear weight. Characteristics with medium heritability values were days to physiological maturity, total weight of wet ear, ear weight, and 1000 kernel weight, whereas low heritability value was found in total ear harvest characteristic.
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Judul: Evaluation of Agronomic Traits and Yield  Potential of 60 Maize Hybrids (Zea mays L.)
Abstrak: Produksi jagung nasional di Indonesia masih perlu ditingkatkan melalui pengembangan varietas-varietas unggul hibrida untuk memenuhi kebutuhan pangan, pakan, dan industri. Hibrida yang diuji perlu dilakukan evaluasi dan dibandingkan dengan varietas pembanding. Penelitian ini bertujuan mengevaluasi keragaan agronomi dan potensi hasil pada 60 hibrida uji hasil program pemuliaan IPB. Penelitian dilaksanakan pada November 2022 hingga Maret 2023 di Kebun Percobaan Leuwikopo, Bogor. Penelitian ini menggunakan rancangan augmented kelompok lengkap teracak dengan 60 genotipe dan 3 kelompok. Genotipe yang diuji meliputi 6 pembanding, yaitu BISI 18, JHG02, P21, P27, NK Perkasa, dan NK Sumo dengan tiga ulangan, serta 60 hibrida uji tanpa ulangan. Terdapat keragaman genotipe uji jagung pada seluruh peubah pengamatan, kecuali umur berbunga jantan, umur berbunga betina, umur panen, dan jumlah tongkol per tanaman. Semua peubah kuantitatif yang diamati memiliki nilai heritabilitas arti luas yang tinggi, kecuali umur berbunga jantan dan jumlah tongkol per tanaman. Hibrida uji yang potensial adalah H1 x L27, P42 x L23, L15 x L53, L68A x H1, MR14 x B1, P42 x L27, L15 x B4B, B4 x L23, B4 x B1, Nei x P2, P10 x L152, P42 x P10, L15 x Nei, dan L68B x B4B. Produksi hibrida uji tertinggi P42 x L23, National production of maize in Indonesia needs to be increased through the development of superior hybrid maize varieties for food, feed, and industries. The hybrid candidates need to be evaluated and compared with the check varieties. This research aimed to evaluate the agronomic performance and yield potential of 60 maize hybrids from the IPB University breeding program. This research was conducted from November 2022 to March 2023 at the Leuwikopo Experimental Station, Bogor. This study used an augmented randomized complete block design with 60 genotypes and 3 blocks. The genotypes include 6 check varieties, namely BISI 18, JHG02, P21, P27, NK Perkasa, and NK Sumo with three replications, and 60 test hybrids without replication. The genotype effect was significant for all traits observed except for days to tasseling, days to silking, days to harvest, and number of ears per plant. All observed quantitative traits have a high broad-sense heritability estimate except days to taselling and number of ears per plant. The potential hybrid candidates are H1 x L27, P42 x L23, L15 x L53, L68A x H1, MR14 x B1, P42 x L27, L15 x B4B, B4 x L23, B4 x B1, Nei x P2, P10 x L152, P42 x P10, L15 x Nei, dan L68B x B4B. The test hybrid having the highest yield was P42 x L23.
Keyword: evaluation, hybrid, maize breeding, yield

Judul: Electrophoretic Coating of Apatite Compouds on Stainless Steel 316L.
Abstrak: Stainless steel (SS) 316L is a metal which is used to bone plate. However, this metal still has low biocompatibility in a human body. The metal is coated by HAp in order to increase its biocompatibility. HAp on SS 316L is coated by electrophoretic deposition (EPD) method. We used two variables in EPD process, such as voltage and coating time to obtain the best coating. The XRD difractogram showed that SS 316L has been coated by HAp. Physical observation used by microscope optics showed that the best coating is achieved on 120V during 2 minutes.
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