Judul: Agronomic performance and seed oil content of physic nut (Jatropha curcas L.) in wet climate of Bogor
Abstrak: Performance of agronomic characters of physic nut was determined on several physic nut genotypes in high rainfall area of Bogor, West Java since January 2010 until September 2011. The research used completely randomized block design with single factor, i.e genotypes (IP-1A, IP-1M, IP-2P, Lombok Timur,Lombok Tengah, Lombok Barat, Sumbawa Besar and Bima) and three replicates. There were two stages of research. In the first stage (January 2010 – December 2010), the plants were without pruning since planting, while in the second stage (January 2011 – September 2011) the plants were pruned. Observation on the first stage showed that the most productive physic nut in high rainfall was the IP – 1A genotype (87.7 kg/ha), and observation on the second stage showed that the most productive physic nut after pruning in high rainfall was the IP – 2P genotype (1014.2 kg/ha). The characters influencing the yield were number of fruits/plant, fruit weight, and number of seeds/plant. The highest oil content (seed basis) was achieved by Lombok Tengah genotype (32.61 %) while on kernel basis it was 53.34 %.
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Judul: Analysis of agronomic characters and isozyme of physic nut (Jatropha curcas L.) at wet climate
Abstrak: The research objective was to determine agronomic characters influencing productivity and genetic variability of several physic nuts in high rainfall area. The research used Completely Randomized Design with three replications of genotypes as follows IP-1A, IP-1M, IP-2P, Lombok Timur, Lombok Tengah, Sumbawa, and Bima genotypes. The direct or indirect effect of each characters was determined by path analysis. Analysis of isozyme experiment of the eight genotypes was also conducted. The experiment showed that the most productive physic nut in high rainfall area was the IP-2P genotype (558.33 kg/ha). The agronomic characters influencing the yield were number of secondary branches, number of productive branches, total leaves, number of inflorescence, number of fruits/plant, fruit weight, seed length, number of seeds/plant, dried seed weight, and weight of 100 seeds. Overall, the most important characters contributing to weight of dry seed per plant is the number of inflorescence (X7) and number of seed per plant (X12), as shown by their positive direct influence and correlation coefficient (P7y =0.51; r7y=0.98) and (P12y=1.10; r12y=0.99). It is concluded that the two characters can be used as the selection criteria for yield. Genetic variability based on qualitative characters was 0-14%, quantitative 17-81%, the isozyme analysis 2-25%, for combined qualitative characters with the isozyme was 1-13% and for combined qualitative characters, quantitative characters and isozyme was 6-33%.
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Judul: Leukemia pada kucing
Abstrak: Leukemia pada kucing adalah suatu penyakit yang sangat patogen, disebabkan oleh sejenis virus. Virus ini dikenal sebagai Feline Leukemia Virus atau FeLV. FeLV ini oleh beberapa ahli dikatakan hanya bersifat ganas pada hewan kucing. Penularannya bisa secara horizontal maupun congenital. Kucing pada semua tingkat umur dapat terserang oleh FeLV ini. Khusus pada bentuk "thymic leukemia", virus ini hanya menyerang anak-anak kucing berumur diba- wah 1 tahun. Kucing-kucing liar atau yang tidak terpeli- hara jarang sekali terinfeksi FeLV. Selain dari serangan virus FeLV itu sendiri, maka penyakit leukemia ini bisa disebabkan oleh beberapa fak- tor yang sudah ada dalam tubuh hewan dan sangat menunjang perkembangan penyakit ini, yaitu antara lain tumor, agen toksik, cedera oleh kecelakaan dan gangguan hemopoiesis. FeLV menyerang sel-sel darah dalam tubuh hewan se- hingga pembentukan darah berjalan tidak normal. Terlihat sel-sel darah yang belum dewasa sudah beredar dalam sir- kulasi darah. Bentuk dan jumlahnya tidak lagi seimbang dalam tubuh hewan kucing tersebut. Gejala klinis antara lain kekurusan, ikterus, anemia, lemah, anoreksia, dyspnoe, sulit menelan, batuk, dan membran mukosa pucat. Selain itu kelenjar pertahanan tubuh juga membengkak, kemudian terjadi hepatomegali, spleenomegali dan pembengkakan pada ginjal. Terbentuk massa tumor pada beberapa tempat. Secara biopsy pada sumsum tulang akan terlihat be- berapa perubahan. Sumsum tulang berwarna merah tua atau abu-abu. Konsistensinya lunak dan terdapat banyak sekali memproduksi sel darah putih. Melalui gambaran darah leukemia ini lebih mudah didiagnosa. Jumlah retikulosit rendah sekali. PCV 8-15%, hemoglobin menurun, sel darah putih (WBC) meningkat, lim- fosit meningkat, Alfaglobulin juga ada peningkatan, dan banyak eosinofil yang belum dewasa beredar dalam darah…dst
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