Panca Dewi Manu Hara Karti
Department of Nutrition Science and Feed Technology, Faculty of Animal Science, Bogor Agricultural University

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POTENSI DAN KARAKTERISTIK PRODUKSI LEMNA MINOR PADA BERBAGAI MEDIA TANAM Prihantoro, Iwan; Risnawati, Adisty; Karti, Panca Dewi Manu Hara; Setiana, M. Agus
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 4 No 2
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/Pastura.2015.v04.i02.p04

Abstract

Lemna minor merupakan jenis tanaman yang hidup dominan pada perairan dengan kualitas nutrisi tinggi dan potensial sebagai sumber hijauan pakan bagi ternak. Penelitian ini bertujuan untuk mengukur potensi Lemna minor dan karakteristiknya pada berbagai media tanam untuk mendapatkan teknik produksi yang optimal. Penelitian dilakukan pada bak plastik dengan ukuran 36.5×27×10 cm3 selama dua minggu. Rancangan yang digunakan adalah Acak Lengkap (RAL) dengan lima perlakuan media dan lima ulangan. Jenis media yang digunakan adalah kontrol, hoagland, hyponex, kompos dan NPK. Parameter yang diukur meliputi serapan nitrogen, pH media, cover area, penyusutan media, dan produksi biomassa. Hasil penelitian menunjukkan bahwa lemna minor efektif dalam memanfaatkan nitrogen dengan nilai serapan > 98 %, media kompos memberikan status pH media yang stabil/netral dan pertambahan luas cover area (LCA) tercepat dan tingkat produksi biomassa Lemna minor terbaik pada media kompos dan Hoagland.
PRODUCTIVITY AND NUTRIENT QUALITY OF SOME SORGHUM MUTANT LINES AT DIFFERENT CUTTING AGES Puteri, Rizki Eka; Karti, Panca Dewi Manu Hara; Abdullah, Luki; Supriyanto, .
Media Peternakan Vol. 38 No. 2 (2015): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.608 KB) | DOI: 10.5398/medpet.2015.38.2.132

Abstract

The objective of the study was to explore the appropriate cutting age to produce optimal biomass and good nutrient quality from sorghum mutant lines BMR i.e., PATIR 3.5 M7, PATIR 3.6 M7, and PATIR 3.7 M7, also SAMURAI I (M17). A completely randomized in Split Plot design with 2 factors and 3 replicates was used. The first factor was the type of sorghum (SAMURAI I M17, PATIR 3.5, PATIR 3.6, PATIR 3.7) as the main plot and the second factor was the cutting age (85, 95, 105) as a subplot. Parameters observed were the production of stems, leaves, grains, total biomass production, ash, crude fat, crude fiber, crude protein, NFE, TDN, percentage of DMD, OMD and N-NH3. Data were analyzed by using ANOVA followed by DMRT (Duncan Multiple Range Test). The results showed that there were highly significant interactions (P<0.01) between cutting age and type of sorghum in production of stems, leaves, grains, total biomass production, value of TDN, DMD, OMD, and N-NH3. Increasing cutting age significantly increased the percentage of ash content, crude protein and crude fat. The sorghum type significantly affected crude fat content nonBMR sorghum variety of SAMURAI I (M17) and achieved optimal biomass production and nutrient content at cutting age of 85 d similar to BMR sorghum mutant lines PATIR 3.6 and PATIR 3.5, whereas BMR sorghum mutant lines of PATIR 3.7 achieved optimum production at the age of 95 d of cutting. All types of sorghum varieties was not recommended to be harvested at 105 d. Biomass production increased with the increasing of cutting age, but the nutrient content decreased.Key words: cutting age, mutant, sorghum