Judul: Keragaan Sifat Agronomi dan Daya Hasil Hibrida Jagung (Zea mays L.) Silang Tunggal dan Silang Ganda
Abstrak: The objective of this research was to evaluate agronomic performance and yield potential of single and double crosses of maize. This research was conducted at the IPB UF Cikabayan Research Station from December 2013 to April 2014. Genetic materials evaluated were five single cross hybrids (SC), 18 double cross hybrids developed from the single crosses (DC) and five S1 genotypes. The experimental design was a single factor Randomized Complete Block Design with four replications. The results elucidated that the genotype category (SC, DC, S1) has significant effects on all traits except standing percentage, number of kernel rows, and yield percentage. Means of the single crosses are significantly better than the other two categories for stem diameter, cob length, cob diameter, and grain yield. There were some extent of genetic diversity among genotypes evaluated for all traits except yield percentage. The yield of PERTIWI3×P31 double cross was not significantly different from the best yielding single cross (P31) and therefore this double cross is considered potential for further utilization in a breeding program
Keyword: Bogor Agricultural University (IPB), single cross., hybrid maize, double cross

Judul: Evaluation of Agronomic Traits and Yield Potential of Maize Genotypes (Zea mays L.) in Sumenep, East Java
Abstrak: Maize is the second main food crop after rice grown by farmers in Indonesia. Maize production is currently used for food, feed, and industry. Nusa Tenggara and Madura are areas that use maize as the main source of carbohydrates. Due to high demand over years, superior maize varieties with high yield potential are needed. This study aimed to identify maize genotypes with good agronomic performance and high yield potential. The experiment was conducted at the Batang-Batang Laok Village, Batang-Batang District, Sumenep Regency, East Java from October 2020 to March 2021. The genotypes evaluated consisted of 23 F1 hybrids, four single cross hybrid varieties, two three-way cross hybrid varieties, two open-pollinated varieties, and three local varieties. The research was conducted using a single factor randomized complete block design (RCBD) with three replications. The results showed that the genotype effect was significant on germination percentage, days to anthesis and silking, anthesis silking interval, plant height, main ear height, stem diameter, fresh ear weight with husk, fresh ear weight without husk, dry ear weight without husk, days to harvest, fresh ear length, dry ear length, fresh ear diameter, dry ear diameter, number of grain rows (fresh and dry ears), number of grains per row (fresh and dry ears), ear weight, grain weight per ear, 1000-grain weight, grain moisture, and prediction of grain yield potential. Dry ear weight had a significant and positive correlation with fresh and dry ear length, dry ear diameter, and number of fresh and dry grain per row. B2 x Mr14A has a higher predicted grain yield potential than NK 6172, and is recommended for further evaluation.
Keyword: plant breeding, agronomic characters, maize hybrids, yield evaluation

Judul: Urolitiasis pada anjing
Abstrak: Urolitiasis adalah suatu penyakit dimana terjadi proses pengendapan batu pada traktus urinaria. Kalkuli yang paling banyak dijumpai pada kasus urolitiasis anjing adalah kalkuli magnesium amonium fosfat (struvite), jika dibandingkan dengan kalkuli oksalat, sistin dan urat (Osborne et al., 1982). Infeksi oleh Staphylococcus aureus pada traktus urinaria memgang peranan penting dalam proses pembentukan kalkuli, karena bakteri tersebut dapat menghasilkan enzim urease, raktor predisposisi tidak dapat dinisankan dari infeksi traktus urinaria. Pada anjing, tempat yang banyak didapati pengandapan kalkuli adalah kantung air kemih dan uretra, sedangkan pada ginjalnya jarang. Pada anjing jantan lebih sering kejadiannya dibanding dengan pada anjing betina, karena anatomi traktus urinaria pada anjing jantan lebih memungkinkan untuk terjadinya obstruksi, yaitu lebih panjang dan sempit. Besarnya, kalkuli bervariasi, dari kecil dan halus seperti pasir sampai besar dan kasar seperti batu karang. ...
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