Judul: Pertumbuhan Bibit Padi Sistem Hidroponik pada Berbagai Spektrum Cahaya LED
Abstrak: Light plays an important role in the growth of rice seedlings. Sowing rice seeds using hydroponic seeding racks has the disadvantage that the distribution of sunlight on the middle shelf with the lowest level has a small light intensity. The use of LED lights can increase the intensity of light in the hydroponic rack thereby increasing the productivity of the rice seedling nursery using the hydroponic seeding rack. The purpose of this study was to determine the optimum combination of LED light spectrum and to analyze the effect of the combination of LED light spectrum on the growth of rice seedlings on hydroponic seeding racks. The research was carried out by adding LED lights with a combination of red and blue lights 3:1, 4:1, and 5:1 respectively on the hydroponic rack and then analyzing the growth of the most optimum rice seedlings. Based on the results of the analysis of variance for several parameters, namely plant height, number of leaves, and leaf green level, the best treatment combination was the use of 5 red LED lights and 1 blue light at level 1 of the hydroponic seeding rack. Based on this treatment, an increase in light intensity of 6392 Lux was obtained, which was directly proportional to the results of the rice seedling nursery which produced an average rice seedling height of 19.53 cm, 2 panicles of leaves, and 2 levels of green leaves.
Keyword: hydroponics, LED lights, nursery shelve, rice nursery

Judul: Pakcoy Plant Growth (Brassica rapa L. subsp. chinensis (L.) Hanelt) under some Artificial Lighting in a Wick Hydroponic System
Abstrak: Cahaya merupakan faktor yang sangat penting bagi pertumbuhan tanaman, namun cuaca yang fluktuatif di Indonesia mempengaruhi penerimaan sinar matahari oleh tanaman. Pencahayaan buatan, seperti light emitting diode (LED) surface mounted device (SMD), dapat berfungsi sebagai sumber cahaya alternatif. Penelitian ini bertujuan untuk melihat pengaruh jenis pencahayaan buatan yaitu pencahayaan alami (sinar matahari), LED SMD 5050, LED SMD 5730 dengan lama waktu pencahayaan buatan tunggal yaitu 20 jam, serta lama waktu pencahayaan buatan tambahan yaitu 8 jam pada tanaman pakcoy. Pakcoy dibudidayakan dengan sistem hidroponik sumbu (wick). Parameter tanaman yang dievaluasi meliputi jumlah daun, tinggi tanaman, luas kanopi tanaman, dan berat total biomassa selain akar. Hasil penelitian menunjukkan bahwa tanaman yang dipapar LED SMD 5730 selama 20 jam menunjukkan rata-rata tinggi tanaman, jumlah daun, berat biomassa selain akar, dan luas kanopi tertinggi. Namun hasil ini tidak lebih baik dari tanaman yang diberikan pencahayaan matahari saja (kontrol). Hasil tanaman yang paling buruk merupakan tanaman yang diberikan perlakuan pencahayaan buatan dengan LED SMD 5050 selama 20 jam. Sehingga, berdasarkan hasil penelitian yang dilakukan LED SMD 5730 merupakan sumber pencahayaan buatan yang lebih baik daripada LED SMD 5050., Light is a crucial factor for plant growth, but the fluctuating weather in Indonesia affects the reception of sunlight by plants. Artificial lighting, such as SMD LEDs, can serve as an alternative light source. This study aims to assess the effects of different artificial lighting types, including natural lighting (sunlight), LED SMD 5050, and LED SMD 5730. The lighting durations tested were twenty hours of continuous artificial lighting and eight hours of supplementary artificial lighting on pakcoy plants grown using a wick hydroponic system. Several plant parameters were evaluated, including the number of leaves, plant height, plant canopy area, and total biomass weight excluding roots. Results showed that the plants exposed to SMD 5730 LEDs for twenty hours exhibited the highest average plant height, number of leaves, total biomass weight excluding roots, and canopy area. However, these outcomes did not surpass the control group exposed only to sunlight. Conversely, the plants treated with 5050 SMD LED for twenty hours demonstrated the lowest yields. Consequently, the research findings suggest that SMD 5730 LEDs are a superior artificial lighting source compared to 5050 SMD LEDs.
Keyword: artificial lighting, LED SMD, pakcoy, wick hydroponic

Judul: Pemerian Cacing Amcylostomu bradfiertsis (Comes de Faria, 1910) dan Ancylostoma ceylanicum (Loess, 1911) Pada Kucing di Wilayah Kota Bogor.
Abstrak: Kucing dikenal sebagai hewan kesayangan yang mempunyai nilai khusus bagi manusia. Manusia telah memelihara kucing sejak ribuan tahun yang lalu melalui proses domestikasi sehingga kucing menjadi hewan peliharaan. Kucing tanpa pemilik yang berkeliaran di sekitar hewan peliharaan sangat potensial sebagai sumber infeksi Wagai penyakit antara lain kecacingan. Oleh karena itu setiap pemilik kucing sebaiknya melakukan pencegahan dengan tidak membiarkan kucing peliharaannya berkeliharaan dengan bebas di lingkungan yang terdapat populasi kucing liar.
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