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All Journal Jurnal Biologi Universitas Andalas Bioscientist : Jurnal Ilmiah Biologi
Sefmaliza, Rizka
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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Preliminari Eksperimen dalam Penginduksian Akar Stek Tumbuhan Tetrastigma papillosum Inang Rhizanthes deceptor Chairul, Chairul; Sefmaliza, Rizka; Idris, M.
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i2.9045

Abstract

Tetrastigma is a genus in the Vitaceae family which is characterized by the presence of tendrils. This plant has a liana habit, which requires tall plants as support in its life. Induction of host roots, Tetrastigma papillosum, in this study, used Naphthalene Acetic Acid (NAA), which is a class of auxin that functions to induce cell expansion and initiation of rooting. This research was conducted using a Completely Randomized Design (CRD) with 5 treatments and 5 replications. Several NAA concentrations as treatments consist of A (0 ppm), B (2.5 ppm), C (5 ppm), D (7.5 ppm), and E (10 ppm). Root induction of Tetrastigma papillosum can be initiated with NAA at small concentrations because endogenous auxin induces roots more quickly.
Composition And Structure Of Undergrowth Habitats Of Flora Rafflesia arnoldii R.Br. In The Forests Of Bukik Pinang Mancuang, Kamang Mudiak, Agam Sefmaliza, Rizka; Chairul, Chairul
Jurnal Biologi Universitas Andalas Vol 10 No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.42-46.2022

Abstract

Vegetation analysis is a way of studying the composition of species and the structure of the vegetation. The objective research about understorey vegetation analysis in the flora habitat of Rafflesia arnoldii in Bukit Pinang Mancuang Forest, Kamang Mudiak, Agam was to determine the composition and structure in the flora habitat of Rafflesia arnoldii in Bukit Pinang Mancuang Forest, Kamang Mudiak, Agam. Vegetation analysis was carried out by using the quadratic plot method with a size of 2 x 2 m. There were 6 plots have been made and species identification was carried out at the Andalas University Herbarium. According to the observation result, there are 32 species discovered consisting of 601 individuals with 19 families. The dominant families are Rubiaceae (34.61%) and Utricaceae (32.61%). The importance value index of Coffea canephora was obtained (51.28%). The plant diversity index in this area was classified as moderate (H'=2.58). Based on the analysis conveyed, it can be concluded that the Rubiaceae and Urticaceae families are adequate forest and life support for Rafflesia arnoldii habitat. It is recommended that the local government designated the forest as a conservation area in order to preserve the existence of Rafflesia arnoldii and its habitat.
Co-Authors Chairul Chairul M. Idris