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INDONESIA
Jurnal Riau Biologia
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 51 Documents
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Siklus Hidup Kupu-Kupu Graphium agamemnon L. (Lepidoptera: Papilionidae) di Kampus I Universitas Islam Negeri Syarif Hidayatullah Jakarta FITRIANA, NARTI; MAULIDIA, NUR AZIZAH; WIJAYANTI, FAHMA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Graphium agamemnon butterfly often observed flying, mating and laying eggs on glodokan plants(Polyalthia longifolia Sonn.) that planted as greening along the campus corridor in UIN SyarifHidayatullah Jakarta. This study was conducted to examine the use of plants as well glodokan butterflylife cycle of G. agamemnon using survey method. Observations were made in artificial semi-naturalenclosure that was placed in the room. Parameter observations include the timing and place ofoviposition, morphology and length of each stage until imago. Based on observations, G. agamemnon puttheir eggs on the lower sides of young leaves (80%) with 88.30 ± 34.74 cm distance above the groundlevel at 9:00 up to 10:58 pm. The life cycle of G. agamemnon take place during 31-38 days, consisting ofegg stage for 2-3 days (diameter egg shell 1.233 ± 0.101 mm), first instar larvae (L1) for 2-4 days (thelength of the larvae 4.624 ± 0.673 mm) , L2 for 2-4 days (9.387 ± 2.028 mm), L3 for 1-4 days (14.883 ±2.112 mm), L4 for 2-4 days (26.036 ± 3.983 mm), L5 for 3-8 days (37.948 ± 4.280 mm), prepupa for 1-2days (32.991 ± 1.527 mm) and pupa for 12-15 days (32.532 ± 1.150 mm). Each stage has a differentmorphology. Sex ratio of male: female was 3: 2.Keywords: life cycle, butterflies G. agamemnon, glodokan
Uji Patogenisitas Fungi Entomopatogen Lokal Riau sebagai Agen Biokontrol Hama Rayap (Coptotermes curvignathus Holmgren) SINTAWATI, REGIANA; MARTINA, ATRIA; LINDA, TETTY MARTA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Biopesticide is a technique that can be used to the control pest population in the environment. Thepurpose of this research was to isolate fungi from the soil using baiting and cadaver technique andpathogenicity test. Isolates which had high germinating conidia was tested their patogenicity againstCoptotermes curvignathus. A total of 12 isolates were baited from soil and cadaver samples at palm oilplantation. The result showed eight isolates had high germinating conidia categories (˃ 80%). Thepathogenicity test of four isolates showed 100% mortality for RB.r01 and BK.r01; and KB.r01 andNK.r01were 72% and 67% respectively. Isolates capability against termite was not significantly different,but it was significantly different from control.Keywords : entomopathogenic fungi, pathogenicity, Coptotermes curvignathus, biocontrol
Induksi Tunas in vitro Jeruk Siam (Citrus nobilis Lour.) Asal Kampar pada Berbagai Konsentrasi Sukrosa FATONAH, SITI; ISDA, MAYTA NOVALIZA; LESTARI, WAHYU
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

This study aimed to determine the most effective concentration of sucrose for a shoot induction fromcotyledon explants of Citrus nobilis from Kampar. Cotyledon explants were cultured on Murashige andSkoog (MS) medium containing sucrose at various concentrations without supplemented with growthregulators. The treatments consisted of five concentrations of sucrose, i.e. 0, 20, 30, 40, 50, 60 g /l. Theresult showed that all explants on different concentrations of sucrose treatment had the percentage ofliving and the percentage of shoot induction reached 100%. The best response for shoot induction aftereight weeks of culture was observed on MS medium supplemented with 50 g/l sucrose with the number ofshoot was 2, shoot length was 4,125 cm, and leaf number was 5,74 strands.Key words: Citrus nobilis lour., concentration of sucrose, in vitro, shoot induction
Identifikasi Jamur Penyebab Penyakit Pascapanen pada Beberapa Komoditas Bahan Pangan PRATIWI, NOVA WAHYU; JULIANTARI, ERWINA; NAPSIYAH, LUTFI KHOTUN
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Food commodities can actually be stored for a long term after harvesting, but there are some constraintsof decrease in the quality of the fruit because of several postharvest diseases caused by microorganismssuch as fungi, bacteria, and viruses. The most frequently postharvest diseases trigger found is a group ofpathogenic fungi. The results of identification of fungi causing disease in several types of fruitpostharvest which were performed by blotter test method and medium PDA showed that Colletotricumcapsici fungi was found in chili, Rhizoctonia solani in bananas and tomatoes, Amerosporium sp. inpapaya, Pythium sp. on bananas, Fusarium solani on mango, banana, and papaya, and Phomopsis sp. ontomatoes.Keywords: fungi, food commodity, identification, postharvest diseases
Uji Teratogenik Ekstrak Minyak Biji Jintan Hitam (Nigella sativa) pada Mencit (Mus musculus l.) Bunting SETYAWATI, IRIANI; SUDATRI, NI WAYAN
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

This experiment was performed to examine the effects of black cumin (Nigella sativa) seed oil extract onreproduction performance and fetus development if given during organogenesis period. Forty pregnantmice were randomly divided into four groups. Extract was treated orally by gavage with doses 0%(control), 0.1 ml, 0.2 ml, and 0.3 ml since gestation day 6 to 15. Caesarean section were performed topregnant mice on day 18 to remove fetuses. Observation covered reproduction performance i.e. the foetusnumber (reabsorptions, dead/ alive foetus), and morphological of the foetus (weight and length of thelitter, and malformations). Statistical analysis was performed using Anova and Duncans Multiple RangeTest. Teratogenic effects of black cumin oil extract caused decreasing of reproductive performance of themother (alive foetus decreased, dead and resorbed foetus increased) and an increased incidence of birthdefects (fetal weight and length and fetal hemorrhage).Keywords: Nigella sativa, congenital malformations
Karakteristik Pohon Bersarang Elang Brontok(Nisaetus cirrhatus) di Siak, Riau , MISNA; GUNAWAN, HARIS; YOZA, DEFRI
Jurnal Riau Biologia Vol 1, No 2 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Elang Brontok (Nisaetus cirrhatus) adalah salah satu raptor yang keberadaannya terancam akibat perburuan liar dan degradasi habitat. Elang Brontok terpantau pada areal persawahan, perkebunan, hutan dan perkampungan di Siak. Elang Brontok tersebut kemungkinan bersarang di pohon yang memiliki kriteria khusus pada kawasan-kawasan berpohon tinggi. Penelitian ini bertujuan mengetahui kriteria pohon bersarang Elang Brontok yang hidup di Siak. Metode nest survey digunakan untuk menemukan sarang. Selanjutnya, dikarakterisasi pohon sarangnya. Analisis data dilakukan secara kualitatif dan kuantitatif. Hasil penelitian ini ditemukan 3 jenis pohon yang dipilih sebagai pohon sarang adalah Koompassia malaccensis (n=6), Shorea sp (n=1) dan Alstonia scholaris (n=1). Ketinggian pohon sarang antara 43-57 m dan posisi sarang berada pada ketinggian antara 23-40 m dari permukaan tanah. Sarang berada di pangkal cabang pertama hingga keenam yang ditopang tiga cabang vertikal. Tajuk pohon yang paling banyak dipilih adalah tipe payung (37%).
Analisis Filogenetik Mangifera odorata Sumatera Tengahdan Kerabatnya Menggunakan Gen rbcL JULIANTARI, ERWINA; , FITMAWATI; SOFIYANTI, NERY
Jurnal Riau Biologia Vol 1, No 2 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Mangifera Sumatera bagian Tengah memiliki kemampuan unik dalam beradaptasi pada wilayah dengan curah hujan yang tinggi, sehingga berpotensi sebagai sumber plasma nutfah Sumatera. Secara morfologi genus Mangifera cukup sulit dibedakan karena tingginya plastisitas morfologi. Mangifera odorata diduga sebagai spesies hibrid dari M. indica dan M. foetida, sehingga diperlukan analisis untuk memperkuat status taksonomi M. odorata. Tujuan penelitian ini untuk merekonstruksi hubungan kekerabatan M. odorata dan kerabatnya berdasarkan gen rbcL. Rekostruksi menggunakan program PAUP* Versi 4.0b10 dengan metode maximum parsimony (MP). Kladogram dengan metode MP membentuk klad monofiletik dengan dua klad utama Mangifera. Klad pertama yaitu M. indica dan klad kedua terdiri dari M. foetida dan M. odorata. Kladogram mendukung asumsi bahwa M. odorata adalah hibrid dari M. foetida dan M. indica. 
Keanekaragaman Infraspesifik Petai (Parkia speciosa Hassk.) Di Kabupaten Indragiri hulu dan Kabupaten Kuantan Singingi Berdasarkan Karakter Morfologi , ZULHENDRA; , FITMAWATI; SOFIYANTI, NERY
Jurnal Riau Biologia Vol 1, No 2 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Petai (Parkia spesiosa Hassk.) merupakan tanaman bermanfaat yang tumbuh di daerah tropis dan diperkirakan mempunyai kekayaan plasma nutfah yang tinggi di Provinsi Riau. Keanekaragaman tanaman petai di Kabupaten Indragiri Hulu dan Kabupaten Kuantan Singingi, Provinsi Riau belum diungkap dan diketahui varietasnya, di sisi lain keanekaragaman petai terancam punah seiring dengan konversi areal hutan sebagai habitat aslinya menjadi perkebunan dan industri. Penelitian ini bertujuan untuk mengetahui keanekaragaman infraspesies tanaman petai di Kabupaten Indragiri Hulu, Provinsi Riau dengan menggunakan karakter morfologi. Penelitian menggunakan metode eksplorasi yang dilaksanakan dari bulan Oktober 2014 sampai dengan March 2015. Dua puluh tiga petai yang telah diamati karakter morfologi diskoring dan dianalisis untuk mengetahui pengelompokannya menggunakan program NTSYSpc 2.02. Hasil penelitian dendogram menunjukkan individu petai tidak mengelompok berdasarkan asal populasi tetapi berdasarkan karakter morfologi. Kelompok pertama terdiri 21 individu dan kelompok kedua terdiri dari 2 individu. Nilai koefisien kemiripan 23 pohon petai berkisar antara 0,21 sampai 0,79.
Evolutionary Relationship of Common Mangoes: Insight from ITS HAYATI, IBNA; , FITMAWATI; SOFIYANTI, NERY
Jurnal Riau Biologia Vol 1, No 2 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Mango (Mangifera) is one the most important fruit from Asia. The center of origin and diversity of this genus is in Southeast Asia. This region has great economic development in recent years. Due to the deforestation and habitat change, the occurance of Mangifera species in their natural habitat is threathened. This research aimed to analyze evolutionary relationship among common mangoes from Central Sumatra. This research was conducted from November 2015 until April 2016. DNA was isolated using CTAB method. The isolated DNA were then sequenced in First Base Laboratories, Malaysia. Phylogram was generated using Neighbor Joining Method, while T92+G evolution model was used for Distance Analysis. NJ analysis revealed monophyletic group of common mangoes. M. laurina was considered as the most primitive species in common mangoes clade due to the longest branch length. Relationship among M. kemanga and M. laurina, M. indica and M. zeylanica was a new finding. It would be highlighted to determine newer classification, cultivation and conservation strategies of mango. 
Analsis Keanekaragaman Kayu Manis (Cinnamomum burmannii (Nees & T. Nees) Blume.) Di Kabupaten Agam, Sumatera Barat Berdasarkan Karakter Morfologi WAHYUNI, SISKA SRI; , FITMAWATI; SOFIYANTI, NERY
Jurnal Riau Biologia Vol 1, No 2 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Kayu manis (Cinnamomum burmannii (Nees & T. Nees) Blume.) merupakan komoditi perkebunan di Provinsi Sumatera Barat yang memiliki kapasitas ekspor cukup tinggi. Daerah ini menjadi daerah pengekspor kayu manis sejak abad ke 18 dengan sentra produksinya di daerah Kabupaten Agam dan Kabupaten Tanah Datar. Proses budidaya yang sudah cukup lama memungkinkan munculnya variasi yang cukup tinggi terkait adaptasinya dengan lingkungan di daerah budidaya. Tujuan penelitian ini adalah untuk mengidentifikasi keanekaragaman kayu manis yang ada di sentra produksi kayu manis di Kabupaten Agam, Provinsi Sumatera Barat. Penelitian ini dilaksanakan pada bulan Januari 2015-Mei 2015. Enam puluh pohon kayu manis yang telah diamati karakter morfologi diskoring dan dianalisis untuk mengetahui pengelompokannya dengan menggunakan program NTSYS-pc 2.02i. Hasil penelitian dalam bentuk dendrogram menunjukkan individu kayu manis mengelompok berdasarkan karakter morfologi yang dimiliki pada setiap individu yang diperoleh. Kelompok pertama terdiri dari 59 individu dan kelompok kedua terdiri dari satu individu. Nilai koefisien kemiripan 60 pohon kayu manis berkisar antara 0.30 - 0.95%.

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