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All Journal Biospecies AL KAUNIYAH Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Riau Biologia Jurnal Pengabdian UntukMu NegeRI Jurnal Biologi Tropis Journal of Community Engagement Research for Sustainability
Dyah Iriani
Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Nursing Public Health Social Sciences Other

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Journal : Biospecies

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Penentuan Waktu Pembukaan Stomata Pada Gulma Melastoma malabathricum L. Di Perkebunan Gambir Kampar, Riau Siti Fatonah; Dwijowati Asih; Desi Mulyanti; Dyah Iriani
Biospecies Vol. 6 No. 2 (2013): Juli 2013
Publisher : Universitas Jambi

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Penelitian ini bertujuan untuk menentukan waktu pembukaan stomata yang paling optimal pada gulma Melastoma malabathricum L. di  perkebunan gambir desa Tanjung Kecamatan XIII Koto Kampar. Sampel daun diambil dari pukul 07.00 sampai pukul 17.00 WIB. Setiap 1 jam diambil 1 sampel daun pada tiga tanaman yang berbeda. Sampel daun difiksasi dan dibuat preparat untuk pengamatan jumlah dan ukuran pori stomata yang membuka.  Data yang diperoleh dianalisis menggunakan analisis variansi (ANOVA) dan diuji lanjut dengan uji BNT (Beda Nyata Terkecil) pada taraf 5%. Hasil penelitian menunjukkan, stomata terdapat pada permukaan daun bagian bawah. Daun yang diambil pada jam 09.00 dan jam  10.00 menunjukkan jumlah stomata yang membuka paling banyak (879,34 per mm2 and 876,64 per mm2) dan ukuran pori stomata paling besar (2,49 µm and 2,23 µm).   Jumlah stomata paling rendah sekitar 75,76 per mm2 dan ukuran pori paling kecil  sekitar  0,28 µm teramati pada saat jam  12.00.
Kemampuan Tumbuh Anakan Tumbuhan Nyamplung (Calophyllum inophyllum L.) pada Berbagai Taraf Penggenangan (The Growth Ability of Nyamplung (Calophyllum inophyllum L.) Seedling to Various of Flooding Levels) Norsamsi NORSAMSI; Siti FATONAH; Dyah IRIANI
Biospecies Vol. 8 No. 1 (2015): Januari 2015
Publisher : Universitas Jambi

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This study aims to observe the response of nyamplung seedling to various of flooding levels, using a randomized block design with a single factor of five inundation treatments (control, 0 cm or equal the solil surface, 4 cm, 8 cm, 12 cm). Flooding treatment was carried out for 30 days. The observed parameters were growth rate, morphological adaptation, and injury index. Data were analyzed using ANOVA and Duncan Multi Range Taste (DMRT) in the level of 5%.  The results showed that flooding treatment reduce the growth of nyamplung seedling (fresh weight, height, stem diameter, number of leaves, leaf area, and fesh root weight). Seedling of nyamplung able to survive on equal ground flooding level and 4 cm above the soil surface, classified as moderately tolerant plants. Seedlings were not able to survive in the flooding level of 8 cm and 12 cm, classified as sensitive plants. Morphological adaptations such as lenticels formed by 20% on equal ground surface flooding level and 60%  on the flooding level of 4 cm.
Co-Authors Arini Arini Asma Sari Desi Mulyanti Dwijowati Asih Eni Chahyadi Ennie Chahyadi Fitmawati ' Guspa Yuriza Indah Permatasari Iwan Simatupang Laksono Trisnantoro MARPAUNG, AFNI ATIKA Mayta Novaliza Isda Nery Sofiyanti Norsamsi NORSAMSI Nurul Idani Puji Lestari Putri Intan Wahyuni Roza Elvyra Siti Fatonah Sujarwati ' Tiara Maulidza Riyani Tirtha Juliana Widianti ' Yusfiati Yusfiati