Judul: Evaluasi Penerapan Fertigator Otomatis Nirdaya (FONi) pada Budidaya Tanaman Selada dengan Berbagai Perlakuan Sistem Irigasi
Abstrak: Selada sebagai komoditas yang memiliki nilai ekonomis tinggi saat ini masih dibudidayakan di lahan terbuka yang boros air maupun dengan hidroponik yang boros energi dengan penggunaan pompa yang kontinyu. FONi yang dikembangkan dapat dijadikan solusi yang lebih hemat air dan energi. Tujuan penelitian adalah mengidentifikasi hubungan variasi ketinggian air irigasi dengan produktivitas tanaman selada, evapotranspirasi, dan menentukan tinggi air terbaik. Jaringan irigasi sistem FONi dibuat sebanyak 4 perlakuan ketinggian air irigasi, yaitu 8 (TA1), 10 (TA2), 12 (TA3), dan 14 cm (TA4). Hasil panen untuk TA1, TA2, TA3, dan TA4 sebesar 0,631 kg/m2, 0,449 kg/m2, 0,405 kg/m2, dan 0,188 kg/m2. Standar deviasi hasil panen secara berurut sebesar 0,157 kg/m2, 0,286 kg/m2, 0,090 kg/m2, dan 0.098 kg/m2. Perhitungan efisiensi air menghasilkan nilai secara berurut sebesar 92%, 77%, 59%, dan 58%. Produktivitas air dari masing-masing perlakuan secara berurut adalah 10,15 kg produk/m3 air, 5,55 kg produk/m3 air, 3,70 kg produk/m3 air, dan 1,59 kg produk/m3 air. Hasil ini menunjukkan bahwa TA1 8 cm merupakan variasi irigasi terbaik untuk pertumbuhan selada karena mampu menghasilkan selada dengan produktivitas air terbesar.
Keyword: evapotranspiration, irrigation, lettuce, plant productivity

Judul: Evaluation of Non-powered Automatic Fertigation (FONi) Implementation in Acacia and Eucalyptus Seedlings within Greenhouse
Abstrak: Pengembangan Hutan Tanaman Industri (HTI) dengan pembibitan tanaman akasia dan eukaliptus umumnya dilakukan dengan otomatisasi sprayer yang cenderung boros air dan energi. Fertigator Otomatis Nirdaya (FONi) dapat menjadi solusi pembibitan yang lebih hemat. Penelitian ini bertujuan menghitung nilai Kc, menentukan pengaruh variasi tinggi air irigasi dengan kualitas bibit, serta mengevaluasi penerapan teknologi FONi. Pembibitan dilakukan di dalam greenhouse dengan perlakuan skenario TA1 (7 - 5 cm) dan TA2 (5 - 3 cm) masing-masing 10 pengulangan. Nilai rata-rata Kc diperoleh sebesar 1,31 (TA1) dan 0,94 (TA2). Variasi skenario tinggi air berpengaruh hanya pada kualitas tanaman tinggi akasia karena nilai Sig uji T-test < 0,05 dengan tinggi tanaman rata-rata TA2 lebih besar dari TA1 yaitu 15,10 cm dan 12,70 cm. Total irigasi diperoleh 63,40 mm (TA1) dan 43,09 mm (TA2) sedangkan total evapotranspirasi aktual (ETa) diperoleh 87,40 mm (TA1) dan 56,99 mm (TA2). Nilai ETa lebih besar dari irigasi dengan jumlah air tersimpan 24,89 mm (TA1) dan 14,06 mm (TA2). Efisiensi irigasi diperoleh 77,83% (TA1) dan 80,21% (TA2) dengan kelembapan tanah sebesar 48,89 mm (TA1) dan 27,96 mm (TA2) sehingga hasilnya skenario TA2 lebih optimal. Biaya yang dibutuhkan per bibit sebesar Rp.997,40. sehingga irigasi FONi lebih hemat daripada penyiraman otomatisasi sprayer., Industrial Plantation Forest (HTI) development with acacia and eucalyptus plant nurseries is generally carried out with sprayer automation which tends to be wasteful of water and energy. Non-powered Automatic Fertigation (FONi) can be a more efficient nursery solution. This study aims to calculate the Kc value, determine the effect of variations in irrigation water height on seedling quality, and evaluate the application of FONi technology. Seeding is conducted in a greenhouse with TA1 (7 - 5 cm) and TA2 (5 - 3 cm) scenarios, each with 10 repetitions. The average Kc values obtained are 1,31 (TA1) and 0,94 (TA2). The variation of water height scenario affects only the quality of tall acacia plants because the Sig value of T-test < 0,05 with the average plant height of TA2 greater than TA1, namely 15,10 cm and 12,70 cm. Total irrigation is obtained 63,40 mm (TA1) and 43,09 mm (TA2) while total actual evapotranspiration (ETa) is obtained 87,40 mm (TA1) and 56,99 mm (TA2). ETa values are greater than irrigation with total stored water is 24,89 mm (TA1) and 14,06 mm (TA2). Irrigation efficiency is 77,83% (TA1) and 80,21% (TA2) with soil moisture is 48,89 mm (TA1) and 27,96 mm (TA2) so the results are TA2 scenario is more optimal. The cost required per seedling amounts to Rp.997,40. so that FONi irrigation is more efficient than sprayer automation watering.
Keyword: akasia, eukaliptus, irigasi FONi, koefisien tanaman, kualitas tanaman

Judul: Distribution and Diversity of Ectoparasite Mites on Geckos in Indonesia
Abstrak: Data on the diversity and dispersal of parasitic mites on house geckos in Indonesia are very scarce. In this work, the distribution and diversity of mites living on three species of house geckos, namely Cosymbotus platyurus, Hemidactylus frenatus, and H. garnotii collected throughout Indonesia, has been elaborated. Geckos and mites were captured and immediately preserved in 70% ethanol. Whole mount of the mites was prepared by clearing in lactophenol followed by mounting on polyvinyl lactophenol solutions. The SEM preparation was conducted to examine the detail morphological characters of the mites. The results showed that among 448 individuals of geckos, 221 geckos were infected by Geckobia mites. Prevalences of C. platyurus, H. frenatus, and H. garnotii infested by mites were 14.8%, 50.69%, and 79.6%, respectively. Three different spesies of Geckobia (G1, G2, and G3) could be differentiated; and based on similarities of their morphological characters to ones described in published literatures, Geckobia G2 is Geckobia glebosum and Geckobia G3 is Geckobia bataviensis while G1 could not be identified to the species level. The highest mean intensity of Geckobia G1 infestation was found on H. garnotii (I=7.0), G. glebosum infestation on H. frenatus (I=3.5), and G. bataviensis infestation on H. garnotii (I=11.8). In general, C. platyurus was infested by the least number of mites. Geckobia G1 were found living on the skin folds on the claws, G. glebosum were found mainly on the body and thigh, and G. bataviensis were found on almost all parts of the host’s body. Geckobia mites are distributed randomly throughout Indonesian Archipelago, following the pattern of distribution of their hosts. So it is concluded that Geckobia G1, G. glebosum, and G. bataviensis are sympatric.
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