Judul: Analysis of yield stability and performance of upland rice lines obtained from anther culture
Abstrak: The objectives of this research were to study the potential and yield stability of upland rice lines obtained from anther culture and their performance in the field. Ten upland rice doubled-haploid (DH) lines were tested for their potential yield in eight different locations (in Provinces of Lampung, West Java, Central Java, Yogyakarta, East Java - Indonesia) in the rainy season of 2010/2011 along with two check varieties (Way Rarem and Batutegi). In each location, the design was Randomized Complete Block Design with four replications. The results indicated that the line showing the most stable yield in different environment was I5-10-1-1 followed by WI-44, and IG-38. I5-10-1-1 produced 4.01 tons of dry grain per hectare. The line showing the highest yield was WI-44, and this line produced 4.72 tons of dry grain per hectare. Visualization with AMMI showed that IW-56 and IW-67 lines were specifically adapted in Purworejo, O18-b-1 was specifically adapted in Bogor, and IG-19 was specifically adapted in Malang.
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Judul: Analysis of agronomic performance and stability of promising upland rice lines derived from buru rice landraces obtained through anther culture
Abstrak: The promising upland rice lines have been obtained from anther culture of crossing between released variety and Buru rice landraces. The lines need to be evaluated for their agronomic performance and yield stability at various locations. The objectives of the research were to obtain information of agronomic performance, yield stability and adaptability of upland rice lines at various locations. Ten upland rice lines and two check cultivars were evaluated at five locations (in Pekalongan - Lampung Province, Bogor and Sukabumi - West Java Province, Purworejo - Central Java Province and Malang - East Java Province) in the rainy season 2011/2012. In each location, the design was Randomized Complete Block Design with four replications. Four stability analysis methods were used to analyze the adaptation and yield stability of those lines (Francis- Kannenberg, Finlay-Wilkinson, Eberhart-Russel and AMMI). The results indicated that Fat-4-1-1, FM1R-1-3-1, FG1R-36-1-1 and FG1-6-1-2 lines produced the highest yield of dry grain per hectare (4.77; 4.54; 3.90 and 3.46 tons of dry grain per hectare, respectively). Fat-4-1-1, FM1R-1-3-1 and FG1R-36-1-1 lines have a potential agronomic and yield characters as new upland plant type of rice. Four lines were classified as stable by Francis-Kannenberg method, i.e FM1R-1-3-1, Fat-4-1-1, FG1-6-1-2 and FG1R-30-1-3. FG1-6-1-2 was the most stable genotype by Finlay-Wilkinson and Eberhart-Russel methods. Visualization with AMMI indicated that FG1R-30-1-3 was the most stable genotype across all locations.
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Judul: Studi Kasus: Patomorfologi Trakheobronkhitis Supurativa Pada Kucing (Felis Catus).
Abstrak: Trakheobronkhitis merupakan penyakit saluran respirasi yang sering terjadi pada hewan kecil, terutama anjing dan kucing. Penelitian berupa studi kasus ini bertujuan untuk mempelajari patomorfologi trakheobronkhitis supurativa pada kucing. Perubahan patologi anatomi berupa eksudat purulen pada lumen trakhea dan warna paru-paru yang tidak homogen, warna lebih gelap pada salah satu lobus, dan permukaan paru-paru lebih menonjol. Perubahan histopatologi berupa badan inklusi amfofilik-eosinofilik intranuklear yang dikelilingi oleh clear halo dan titik-titik kromatin ditepinya pada epitel kelenjar trakhea dan epitel bronkhiolus. Badan inklusi ini merupakan ciri dari FHV-1 dan adenovirus. Pada trakhea juga ditemukan koloni bakteri berbentuk coccobacillus sebagai infeksi sekunder. Bakteri tersebut diduga Bordetella sp. yang sering menginfeksi saluran respirasi kucing. Deskuamasi terjadi pada epitel trakhea dan bronkhiolus. Selain itu, ditemukan juga sel radang limfosit, makrofag, sel plasma, dan neutrofil. Pada paru-paru ditemukan lesio bronkhiolitis. Ditemukan juga bronkhopneumonia yang ditandai infiltrasi sel radang neutrofil dan sel nekrosis pada lumen bronkhiolus. Paru-paru juga mengalami emfisema dan edema pulmonum. Hiperemia dan hemoragi juga ditemukan pada kapiler paru-paru. Pada kasus ini, trakheobronkhitis supurativa diduga disebabkan oleh FHV-1, adenovirus, dan bakteri jenis Bordetella sp.
Keyword: badan inklusi amfofilik-eosinofilik intranuklear, infeksi bakteri, kucing, patomorfologi