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Brigitta Laksmi Paramita
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Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Published by Universitas Atma Jaya Yogyakarta
ISSN : 25273221     EISSN : 2527323X     DOI : doi.org/10.24002/biota
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati merupakan jurnal ilmiah yang memuat hasil-hasil penelitian, kajian-kajian pustaka dan berita-berita terbaru tentang ilmu dan teknologi kehayatian (biologi, bioteknologi dan bidang ilmu yang terkait). Biota terbit pertama kali bulan Juli 1995 dengan ISSN 0853-8670. Biota terbit tiga nomor dalam satu tahun (Februari, Juni, dan Oktober).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,183 Documents
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Pengaruh Kekurangan Air dan Temperatur Tinggi Selama Periode Pengisian Biji pada Hasil Gandum Pringgohandoko, Budyastuti
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.864 KB) | DOI: 10.24002/biota.v9i3.2916

Abstract

Kenyataan menunjukkan bahwa kekurangan air di daerah-daerah semi-arid di dunia dan temperatur tinggi yang terjadi selama periode pengisian biji adalah merupakan faktor lingkungan yang utama dalam mempengaruhi penurunan hasil biji gandum (Triticum aestivum L.) Pengaruh kekurangan air pada komponen hasil telah banyak diteliti, namun penelitian tentang pengaruh kombinasi kekurangan air dan temperatur tinggi pada biji gandum masih sedikit dan belum banyak dipahami. Tujuan utama dari penelitian ini adalah untuk mengetahui pengaruh kombinasi antara kekurangan air dan temperatur tinggi selama periode pengisian biji pada hasil gandum cultivar Janz.Dari hasil penelitian dapat disimpulkan bahwa kekurangan air dan kombinasi kekurangan air dengan temperatur tinggi menyebabkan perubahan pada pertumbuhan dan akumulasi protein biji yang selanjutnya akan berpengaruh pada penurunan hasil secara nyata. Penurunan laju dan durasi pengisian biji (setelah 30 hari setelah pembungaan pertama) menyebabkan makin cepatnya pemasakan biji.
Studi Pakan Burung Perkici Pelangi (Trichoglossus haematodus Linnaeus, 1771) dalam Laboratorium Penangkaran Widodo, W
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 3 (2006): October 2006
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.362 KB) | DOI: 10.24002/biota.v11i3.2541

Abstract

During the 2002-2003 period, the research was done to study 11 Rainbow Lorikeetsreared in an animal house laboratory. The aim of this research was to find the foodrations formule of the Rainbow Lorikeets so that those birds can be able to grow andbreed well. The food rations were composed of 26.3% local bird foods (521), 35.09%lampung bananas, 8.77% slice corns, 10.5% boiled quails eggs, 1.75% white bread,bean sprouts and red sugar are 8.77%, respectively. All of food materials were mixedon the plastic cup and mixed with 450 ml of water, then pulverized like sweetporridge. That porridge was given to birds in cafeteria and the water was made ready“ad libitum” everyday. The results have shown that giving food rations formula canstimulate two pairs of the Rainbow Lorikeets breeding and during the 2002-2003period they produced three young birds.
Jenis Flora Asing Invasif di Taman Nasional Gunung Gede Pangrango, Jawa Barat Uji, Tahan; Sunaryo,, Sunaryo; Rachman, Erlin; Tihurua, Eka Fatmawati
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.181 KB) | DOI: 10.24002/biota.v15i2.2694

Abstract

Ecological study of Invasive Alien Species (IAS) at two altitudes in Mount Gede PangrangoNational Park was carried out by using quadrate method. The studied plots located at altitude1400 m and 1500 m a.s.l, in 0.2 ha each. The result shows that 45 species of trees, 77 species ofsaplings and 48 species of seedlings were recorded. Five species (i.e. Bartlettina sordida,Austroeupatorium inulaefolium, Cestrum aurantiacum, Brugmansia suaveolens and Passiflorasuberosa) are catagorized as IAS which threaten the ecosystem and natural species.
Penetapan Tingkat Eksploitasi dan Status Populasi Kura-kura Hutan Sulawesi (Leucocephalon yuwonoi McCord, Iverson and Boeadi, 1995) di Kawasan Sulawesi Tengah Bagian Utara, Indonesia Riyanto, Awal
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 3 (2003): October 2003
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.46 KB) | DOI: 10.24002/biota.v8i3.2858

Abstract

Kura-kura Sulawesi (Leucocephalon yuwonoi McCord, Iverson and Boeadi, 1995) adalah satu dari sekian banyak kura-kura yang paling sedikit diketahui dan paling jarang di dunia. Pada tahun 1995 yaitu tahun pertama ditemukan, kura-kura ini telah membanjiri restoran di daratan utama Cina, dan oleh IUCN-The World Conservation Union  populasi kura-kura  ini dikategorikan kritis. Penelitian ini untuk mengungkap tingkat eksploitasi dan status kura-kura Sulawesi yang dilakukan di kawasan utara Sulawesi Tengah dari tanggal 28 April sanpai 13 Mei 2002. Penelitian dilakukan dengan dua pendekatan yaitu (1) survei menggunakan garis transek pada habitat yang merupakan kawasan anak sungai dan (2) kunjungan kepada para pemburuh atau kolektor untuk mendata jumlah kura-kura yang ditangkap. Hasil penelitian ini menunjukkan bahwa tingkat eksploitasi kura-kura Sulawesi pada tahun 2002 diperkirakan mencapai 720 ekor dan status populasinya dinyatakan langka dengan frekuensi 1,91 per hari. Hasil penelitian  berhasil pula mengungkapkan lokasi baru pada  penyebaran kura-kura Sulawesi.
Interpretasi Genetik Pola Pita Isozim pada Cherax quadricarinatus Hasil Budidaya di Purwokerto dan Bogor Bhagawati, Dian; Abulias, Muh. Nadjmi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 3 (2010): October 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.391 KB) | DOI: 10.24002/biota.v15i3.2606

Abstract

A study on genetic interpretation of isozyme band patterns of C. quadricarinatus cultured in Purwokerto and Bogor showed the good visualization of aspartat transaminase, alkohol dehidrogenase, malat dehidrogenase, esterase and acid phosphatase. Twelve loci resulted low level of polymorphism (P= 0,25) and also low valve of heterozygosity (H= 0,09). It indicated that the genetic diversity of both populations was low.
Identifikasi Hama Penggerek Batang dan Deskripsi Kerusakan pada Tanaman Melina (Gmelina arborea) Triyogo, Ananto; Sumardi, Sumardi; Trisyono, Yohanes Andi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 1 (2010): February 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.109 KB) | DOI: 10.24002/biota.v15i1.2659

Abstract

Gmelina arborea is one of the important trees for forest plantation. It is used for pulp, paper and plywood. Considering that G. arborea is an exotic type, this species has highly risk of receiving pest and diseases. This research was aimed to study the biological characteristics, attack pattern and distribution of stem borers. Studies were conducted in PT. Sumalindo (East Kalimantan). The sampling plot was 20x20 m2, and the plants were stratified based on the plant age. Observations were directed to determine the species of stem borers and the damage they caused. Xyleutes ceramica and Acalolepta rusticatrix were documented attacking G. arborea, with their damage intensity of 13% and 54.8%. These insect attacked 22% and 64.4% of the plant plantation.
Mempelajari mahluk hidup dan Kehidupannya Secara Hidup dan Dinamis (Resensi Buku) Atmodjo, P. Kianto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 11, No 1 (2006): February 2006
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.884 KB) | DOI: 10.24002/biota.v11i1.2825

Abstract

Ooo, ternyata mahluk hidup itu begitu menarik…!, Ooo..demikian tho proses terjadinya flu burung, atau oo begitu ya penyebabnya, mengapa saat ini bermunculan penyakit baru, dan oo.. ini lah akibatnya kalau lingkungan hidup rusak! Ini semua kesan yang akan kita peroleh kala kita membaca buku “Life “.
Pengaruh Ragi dan Waktu Fermentasi terhadap Produksi Alkohol Secara Fermentasi Berbahan Baku Gaplek Ubi Kayu (Manihot utillisima) Atmodjo, P. Kianto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 13, No 1 (2008): February 2008
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (82.848 KB) | DOI: 10.24002/biota.v13i1.2622

Abstract

The research of the ragi and the fermentation time effect on alcohol production by cassava gaplek has been done. The aim of this research were to find out the best time fermentation and trade mark commercial ragi to produce alcohol. Time fermentation were 1 and 2 weeks. The ragi trade marks were NKL and MK. The result showed that the alcohol production was 15-17% in a week, and 18-20% in two week fermentation. The alcohol quantity which produced by both NKL and MK ragi were not significantly different.
Kajian Indeks Hematologis pada Empat Subpopulasi Gelatik Jawa (Padda oryzivora L.) Surata, Sang Putu
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 2 (2004): June 2004
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.847 KB) | DOI: 10.24002/biota.v9i2.2893

Abstract

Gelatik Jawa (Padda oryzivora L) merupakan salah satu spesies burung yang terancam punah dan perlu dikonservasi. Salah satu penyebab kepunahan adalah ketidakmampuan spesies tersebut untuk beradaptasi dengan perubahan alam sekitarnya yang dapat ditunjukkan pada perubahan  ciri biokimiawi individu seperti indeks hematologis. Penelitian ini bertujuan untuk mempelajari apakah ada perbedaan indeks hematologis pada empat subpopulasi gelatik Jawa   di Jawa Barat, Jawa Timur, Bali Utara dan Bali Selatan.  Hasil penelitian menunjukkan bahwa indeks hematologis  darah  gelatik Jawa dari empat subpopulasi  tersebut dengan bobot badan  antara 21-30 g, memiliki  nilai rerata eritrosit 5,00±0,60 x 106/mm3; leukosit 2,35±0,86 x 103/mm3; PCV 61,32±11,62%; limfosit 58,25±17,32%; heterofil 35,93±15,72%; monosit 3,05±2,98%; dan basofil 0,05±0,21%.  Ratio heterofil terhadap limfosit (H/L) burung tidak meningkat seiring dengan meningkatnya suhu lingkungan. Diduga hal tersebut disebabkan gelatik Jawa sudah beradaptasi dalam waktu yang relatif lama terhadap lingkungan lokal.
Pertumbuhan Enterococcus faecalis ID 6017 dan Kemampuan Dekolorisasi Beberapa Konsentrasi Orange II dalam Sistem Sinambung Kara, Patrisia Ilene; Meitiniarti, V. Irene; Timotius, K. H.
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 13, No 2 (2008): June 2008
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (102.212 KB) | DOI: 10.24002/biota.v13i2.2671

Abstract

Orange II is the most used colorant in industries which involve coloring process. So far, Orange II decolorization process by Enterococcus faecalis ID 6017 under batch system has been proven to be able to decolorize orange to colourless. In the presence of intermediates accumulation in batch system, claimed bioprocess development with continues system. An hypothesis was carried out that continues system could reduce intermediates generated by Orange II degradation. This research aimed to know the growth of Enterococcus faecalis and its Orange II decolorization ability in the medium supplemented with Orange II with different concentration under continues system. The research was set on continues system with single cultures Enterococcus faecalis, grown in medium with 80, 120, or 160 mg/L Orange II concentration. Measured parameters were Orange II concentration, biomass, glucose concentration, intermediates compound (sulphanilic acid). It could be concluded that under continues system (D = 0.06 hour-1), Enterococcus faecalis could decolorize Orange II until 160 mg/l.

Page 21 of 119 | Total Record : 1183

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