Judul: Metode Pengusangan Cepat dengan Larutan Etanol untuk Pengujian Vigor Daya Simpan Benih Caisin (Brassica rapa L. cv. grup Caisin)
Abstrak: The objective of this study was to obtain effective duration in accelerated aging method with soaking the seed in 20% liquid ethanol that can estimate vigor related to storability caisin seed during 3 and 6 months storage. There were five caisin seed lot used in this study. The seed were taken from five commercial seed with different initial vigor. This research was conducted in two separate experiments. The first experiment was conducted to study caisin seed that stored in aluminium foil pouches during 3 and 6 months period at storage room with temperature 23.3−29.9 °C and 61−85% relative humidity. The second experiment was conducted to study the effect from different duration soaking of the seed that has been moistened for 12 hours in liquid ethanol 20% for 30, 60, 90, 120, 150, and 180 minutes. Both of experiments were arranged in completely nested design. Germination of seed after soaking in 20% liquid ethanol for 90 minutes positively correlated with germination of seed after storage for 3 and 6 months with a coefficient of corellation 0.87 and 0.88. Both the coefficient of corellation close to 1 which shows that the germination of seed after soaking in 20% liquid ethanol can estimate vigor related to storability seed. Vigor related to storability caisin seed after 3 month can be predicted by the equation y = 56.04 + 0.36x with the coefficient of determination 77.00%. Vigor related to storability caisin seed after 6 month can be predicted by the equation y = 62.72 + 0.38x with the coefficient of determination 74.90%. Variable y indicates germination of caisin seed after storage while the variable x indicates germination of caisin seed after soaking in 20% liquid ethanol for 90 minutes.
Keyword: Bogor Agricultural University (IPB), viability, devigoration, deterioration

Judul: Daya Simpan Benih Mentimun (Cucumis sativus L.) yang Telah Diusangkan dengan Perlakuan Etanol
Abstrak: Seed lots with different viability levels were needed in seed invigoration. The objectives of this research were to find out the method of Chemical Accelerated aging that could produce the desirable cucumber seed lot with 80% and 60% germination percentage, and the storability of the treated seeds. Seeds of three cucumber varieties (Misano, Monza, and Penus) were treated by different soaking duration in liquid ethanol 96% to produce 80% and 60% viabilitiy levels and then storedin ambient room (25-30 ºC and RH 57-75%) and AC room (20-28 ºC and RH 45-74%). Cucumber seed of varieties Monza, Misano, dan Penus with viability level of 80% (VL1) could be obtain by soaking the seed into ethanol liquid 96% for 80 minutes, 10 hours 48 minutes, and 4 hours, whereas those with viability level of 60% (VL2) were obtained by soaking duration of 170 minutes, 14 hours 44 minutes and 7 hours. Storage experiment showed that in ambient condition both viability level of Monza seed could maintained the viability for 4 weeks, Misano seed 2 weeks, whereas Penus seed 8 weeks. In AC condition Misano and Penus seed could maintained the viability for 8 weeks, whereas Monza seed 6 weeks.
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Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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