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RETNO PENI SANCAYANINGSIH
Staf Pengajar Fakultas Biologi UGM
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences

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Kontribusi Vegetasi Lantai pada Infiltrasi Air di Area Sekitar Mata air Mudal, Purwosari, Gunung Kidul, Yogyakarta Sancayaningsih, Retno Peni; Saputra, Alanindra
Prosiding KPSDA Vol 1, No 1 (2015): Prosiding KPSDA 2015
Publisher : Prosiding KPSDA

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Abstract

Water is important natural resources for people and spring is one of clean natural water resources in the village. Indonesia has high rain fall, but water availability varies spacially and temporally. The change of land cover or ecosystem in spring catchment area or surroundings decreases water catchment capacity. Therefore it is necessary to conduct a study of floor vegetation contribution on rain-water infiltration. This study aims to determine the structures and the roles of floor vegetation in regards of water infiltration at various degrees of slope. This study was carried out in two times, end of the dry season from June to October 2013 and end of wet season from March to June 2014. Floor vegetation data were obtained from 6 plots (1x1m2) in each growth forms and slopes. Water infiltration were analyzed using rain simulation method in 0.5x0.5m2 plot size. Results showed that there were 18 species of 5 families and 29 species of 10 families found during the dry and wet season respectively. Rainy season triggered grass and herbaceous (Poaceae and Asteraceae) plant density from 5 to 9 times, and also shrubs density from 3 to 6 times. Based on important value analysis at slope classes, Panicum repens (34.7%), Ischaemum sp. (34.2%), Elephantopus scaber (33.5%), and Desmodium triflorum (11.9%) are grasses and herbaceous dominated all slopes during both seasons. Boerhavia difussa, Chromolaena odorata, Flemingia macrophylla, and Mimosa pudica are shrubs dominated in all slopes, especially at the steep slopes for the last 3 shrubs.  The diversity index of the floor vegetation can be categorized low. Based on the rain simulation with average rate of 67.6 mLs-1, P. repens and M. pudica, can respectively withstand water runoff for 27s and 18s and had infiltration capacity of 83.2 % and 75.9 % in the steep slope, and E. Scaber can withstand water runoff for 15s and had infiltration capacity 71.6% in the gentle slope.
Masa Inkubasi Gejala Penyakit Hawar Daun Tanaman Kentang yang Diinduksi Ketahanannya oleh Jamur Antagonis Trichoderma viride Purwantisari, Susiana; Priyatmojo, Achmadi; Sancayaningsih, Retno Peni; Kasiamdari, Rina Sri
Bioma : Berkala Ilmiah Biologi Vol. 18, No.1, Tahun 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (62.469 KB) | DOI: 10.14710/bioma.18.2.41-47

Abstract

Late blight disease caused by Phytophthora infestans, is probably the single most important disease of potatoes worldwide. Infected plants were quickly killed and were difficult for replanting, causing significant losses for the growers. Various control methods were examined including the use of biocontrol agents of Trichoderma spp.  The biocontrol potential of Trichoderma viride against potato late blight pathogen, Phytophthora infestans, were studied  under greenhouse conditions. The research objective was to determine the ability of biocontrol agents Trichoderma viride to delay late blight disease incidence on potato plants in the field. The in vivo experiment was carried out at potato land area located at BALITSA in Cikole Sub District, Lembang District and Bandung Regency. Completely Randomized Design was used with six treatment and five replicates. The treatment tested consist of control (without pathogen fungal and antagonists fungus application too), control (with pathogen fungal application and without antagonist fungal application), chemical fungicide application, antagonist fungal application 2 weeks before planting, application 1 week after planting and both application 2 weeks before and 1 week after planting. Result of the research showed that application of antagonists fungal could delay disease intensity until 14 days. These antagonist could be used as biological agents initials to control leaf blight disease. Key words: Biological control, Potato late blight, Phytophthora infestans, Trichoderma viride
Evaporasi dan Transpirasi Tiga Spesies Dominan dalam Konservasi Air di Daerah Tangkapan Air (DTA) Mata Air Geger Kabupaten Bantul Yogyakarta Binsasi, Remigius; Sancayaningsih, Retno Peni; Murti, Sigit Heru
BIO-EDU: Jurnal Pendidikan Biologi Vol 1 No 3 (2016): Jurnal BIO-EDU Volume 1 Nomor 3 Tahun 2016
Publisher : Jurusan Pendidikan Biologi, Fakultas Ilmu Pendidikan, Universitas Timor

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Abstract

Kekayaan sumber air di Indonesia sangat melimpah, tetapi ketersediaan air sangat bervariasi berdasarkan dimensi ruang dan waktu. Adanya perubahan iklim, sistem penggunaan lahan yang buruk, kerusakan ekosistem di Daerah Tangkapan Air (DTA), serta kebutuhan konsumsi air terus meningkat akan mengakibatkan terjadinya beberapa tempat mengalami krisis air. Tujuan penelitian ini adalah untuk mengetahui peranan ekofisiologis dalam mengkonservasi air dalam proses evaporasi, transpirasi, dan evapotranspirasi. Penelitian ini dilaksanakan pada bulan November 2015-April 2016 di DTA mata air Geger Kabupaten Bantul Yogyakarta. Metode pengambilan sampel adalah metode kuadrat plot secara acak. Penentuan DTA dan pembagian kelas vegetasi menggunakan citra Quikbird dan GIS. Pengujian Evaporasi, Transpirasi dan Evapotranspirasi dilaksanakan di Green house Fisiologi Tumbuhan, Fakultas Biologi Universitas Gadjah Mada. Hasil pengujian evaporasi untuk ketiga perlakuan yaitu (Kontrol, P40%, dan P 80%) pada tiga spesies dominan yaitu Gnetum gnemon, L. Swietania mahagoni, (L.) Jacq dan Tectona grandis, L. Hal ini menunjukkan bahwa spesies Tectona grandis, L. memiliki tingkat penguapan yang tinggi, sedangkan hasil pengukuran laju transpirasi berdasarkan analisis regresi menggunakan Licor dan Kobalt klorid menunjukkan koorelasi negatif artinya semakin tinggi nilai laju transpirasi pada Licor maka akan semakin rendah nilai laju transpirasi pada kobalt klorida.
Sasi Katang Balanga:Upaya Penangkapan Berkelanjutan Scylla serrata (Forskal,1775) Di Desa Leksula, Buru Selatan, Maluku Talakua, Matheos; Sancayaningsih, Retno Peni; Joko, Tri
JURNAL BIOS LOGOS Vol 10, No 2 (2020): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.10.2.2020.29510

Abstract

ABSTRAKKatang balanga (Scylla serrata) hidup pada dua kawasan mangrove di desa Leksula yaitu Teslatu-Tanjung Kabat dan Kamite Salehen. Pemerintah Desa Leksula menerapkan sasi katang balanga pada kawasan mangrove Teslatu-Tanjung Kabat.  Sasi katang balanga adalah larangan menangkap katang balanga pada  waktu tertentu dan cara untuk menghindari  penangkapan katang balanga diluar waktu  yang ditentukan. Penelitian ini bertujuan membandingkan populasi katang balanga di kawasan mangrove Teslatu-Tanjung Kabat dan Kamite Salehen dan mengetahui  dampak sasi katang balanga bagi kehidupan katang balanga di Desa Leksula. Pengamatan katang balanga dan pencacahan individu per kelamin  dilakukan menggunakan alat tangkap bubu, pada periode bulan terang dan gelap. Kelimpahan dan estimasi hasil penangkapan katang balanga dibandingkan menggunakan uji-t. Penerapan sasi katang balanga di kawasan mangrove Teslatu-Tanjung Kabat memberikan hasil tangkapan lebih baik. Namun demikian, perlu dilengkapi dengan sejumlah aturan untuk keberlanjutan populasi katang balanga.Kata kunci: Berkelanjutan; Desa Leksula; Katang balanga; Sasi,Scylla serrata ABSTRACTKatang Balanga or mud crabs (Scylla serrata) live in two mangrove areas in Leksula, Teslatu-Tanjung Kabat and Kamite Salehen. Local authority in Leksula applies Sasi Katang Balanga to the Teslatu-Tanjung Kabat mangrove area. This research aims to compare the population of mud crabs in Teslatu-Tanjung Kabat and Kamite Salehen mangrove area and to know the impact of sasi on mud crabs population in Leksula. The observation of mud crabs and the enumeration of the sex of each individual was carried out by using guiding barriers or traps in the full and the new moon. The estimation of mud crabs capture results were compared using t-tests. The use of sasi in the Teslatu-Tanjung Kabat mangrove area shows a better catch results. However, it still needs to be equipped with regulations for the sustainability of mud crabs population.Keywords: Sustainability; Leksula; Katang balanga; Sasi; Scylla serrata
Densitas dan Fekunditas Cembirit (Tabernaemontana macrocarpa Jack.) di Komunitas Acacia auriculiformis A.Cunn.ex Benth di Hutan Lindung Mangunan, Bantul Kusumadewi, Anindyasari; Sancayaningsih, Retno Peni
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 13, No 1 (2016): Prosiding Seminar Nasional XII Biologi
Publisher : Universitas Sebelas Maret

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Abstract

Acacia Community in the Conservation Forest of Mangunan has six vegetation species with four largest dominant, they are Acacia (Acacia auriculiformis), Cembirit (Tabernaemontana macrocarpa), Mahogany (Swietenia mahagony), and Sono (Dalbergia latifolia). In previous growthform analysis of A. auriculiformis, tree density was higher (380 ind Ha-1) compared to T. macrocarpa (280 ind Ha-1), but the sapling and seedling of A. Auriculiformis had lower density (20ind Ha-1 and 23.600 ind Ha-1) compared to T. macrocarpa (520 ind Ha-1 and 26.800 ind Ha-1). The presence of T. macrocarpa showed that there was an interspecies competition critically with the main community, A. auriculiformis. Therefore, the purposes of this research are to analyze the density of tree, sapling, and seedling growthforms of T. macrocarpa; to assess the fecundity of T. macrocarpa of 3 stem diameter classes. This research is the continuation of the previous research in 2015. Data collection had been conducted in December 2015-February 2016 in Conservation Forest Mangunan, Bantul. Serial observations were conducted six times in five permanent plots of 10x10 m2. The growth data were analyzed using Relative Growth Rate (RGR) analysis. Results of this research show that T. macrocarpa density from tree, sapling, and seedling growthforms are 480 ind Ha-1, 860 ind Ha-1, and 30.200 ind Ha-1. T. macrocarpa stands with smaller diameter have greater RGR value (0,00079 cm) than stands with larger diameter (0,00040 cm). The highest fecundity value of stands from the large, medium and, small stands diameter: 2,37%; 1,93%; and 1,16% respectively. The highest RGR, fecundity, and seedling density value of T. macrocarpa show an aggressive growth, thus, this species is estimated to threat or substitute the main species A. auriculiformis.Keywords: Density dan Fecundity of Tabernaemontana macrocarpa Jack., Acacia auriculiformis A.Cunn.ex Benth Community, Conservation Forest of Mangunan. 
Densitas dan Fekunditas Tabernaemontana macrocarpa di Komunitas Pinus merkusii, Hutan Lindung Mangunan, Bantul Atie, Abi Giusti Wohing; Sancayaningsih, Retno Peni
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 13, No 1 (2016): Prosiding Seminar Nasional XII Biologi
Publisher : Universitas Sebelas Maret

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Abstract

Tabernaemontana macrocarpa Jack (Cembirit) is a tree species found in Mangunan Conservation Forest and hasn’t been known yet when it appears firstly. Until this time, information about it’s fecundity is still unknown. Pine litter containing allelopathic compound (monoterpen α-pinene and β-pinene) that is toxic to other species. The high density of it’s seedling indicated that pines allelopathy didn’t effect the Cembirit in Pines community. This research purposes to find out the density and fecundity of Cembirit in Pines community. Data collection had been conducted in December 2015 – February 2016 in Mangunan Conservation Forest, Bantul. Data collections were conducted 6 times in 10x10m2 permanent plots. The growth data were analysed using Relative Growth Rate (RGR) analysis. The Cembirit densities in Pines community are 10.420 ind Ha-1 (seedling), 460 ind Ha-1 (sapling), and 40 ind Ha-1 (tree). The Cembirit were categorized into 3 groups based on it’s stem diameter were including 7,7-9,8 cm (group 1), 9,9-11,8 cm (group 2), and 11,9-13,8 cm (group 3). The Cembirit’s RGR are, 0,00079 cm (group 1), 0,00069 cm (group 2), and 0,00055 cm (group 3), with their fecundity are 3,4%, 5,6% and 2,4%. The high density, RGR, and fecundity value of Cembirit, indicated it’s invasiveness and potentialy become a strong competitor for Pines. Keywords: T. macrocarpa, P. merkusii, inavasiveness, Mangunan
Co-Authors Achmadi Priyatmojo Alanindra Saputra Ali Djamhuri Anak Agung Istri Sri Wiadnyani Atie, Abi Giusti Wohing Binsasi, Remigius ENDANG SUTARININGSIH SOETARTO Kusumadewi, Anindyasari Rina Sri Kasiamdari Sigit Heru Murti Susiana Purwantisari Talakua, Matheos