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INDONESIA
REINWARDTIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 6 Documents
 1 
Search results for , issue "Vol. 21 No. 1 (2022)" : 6 Documents clear
THE POPULATION AND DISTRIBUTION OF AGARWOOD PRODUCING TREE (AQUILARIA MALACCENSIS) IN RIAU PROVINCE Yulizah Yulizah; Joeni Setijo Rahajoe; Agusdin Dharma Fefirenta; Agung Adi Nugroho
Reinwardtia Vol. 21 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v21i1.3874

Abstract

YULIZAH, RAHAJOE, J. S., FEFIRENTA, A. D. & NUGROHO, A. D. 2022. The population and distribution of agarwood producing tree (Aquilaria malaccensis) in Riau Province. Reinwardtia 21(1): 1–11. — Riau Province is one of the largest agarwood producers and supplier of Aquilaria malaccensis species in Indonesia, based on the data of trade quota that was issued by the Ministry of Environment and Forestry in 2018. The quota data will be used for monitoring the sustainability of the population agarwood producing trees in the wild. The aimed of the study were to determine the natural population distribution and habitat preference of wild agarwood-producing trees in Riau Province. The agarwood population census carried out by making random plots in the study sites, soil moisture, soil pH, temperature and the humidity recorded, and the macronutrients data also used to support the habitat preferences for the agarwood producing taxa tree. Seven locations of agarwood producing trees were selected for the study sites including Taman Hutan Raya (TAHURA: Forest Park Garden) Sultan Syarif Hasyim (SSH), three community forests in Siak Sri Indapura District (Gosib, Perincit and Dosan), and three community forests in Bengkalis District (Langkat, Pangkalan Jambi, and Duri Km 13). The density of agarwood producing trees in TAHURA SSH recorded for about 38 plants ha-1, with an average diameter distribution was 15 cm, and the tree height was 9.51 m. Perincit data showed the highest density, with 8.13 plants ha-1 with an average distribution of tree diameters was recorded for 20.8 cm and the tree height was 9.11 m. While the lowest tree density was recorded for 0.58 plant ha-1 in Gosib, the average diameter and tree height were recorded for 40.15 cm and 14.70 m, respectively. Environmental parameters and soil chemistry were the main factors to support the tree growth of agarwood. The result was necessary for the conservation program of A. Malaccensis, and support data for providing potential seeds source and seedling. The nutrient content preference from the finding of this research will also be used as the necessary information of the needs of nutrient content in the natural habitat of agarwood plantations.
A NEW VARIETY OF CANTHIUMERA GLABRA (RUBIACEAE: VANGUERIEAE) Ridha Mahyuni; Tatik Chikmawati; Nunik Sri Ariyanti; Anne Kusumawaty
Reinwardtia Vol. 21 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v21i1.4268

Abstract

MAHYUNI, R., CHIKMAWATI, T., ARIYANTI, N. S. & KUSUMAWATY, A. 2022. A new variety of Canthiumera glabra (Rubiaceae: Vanguerieae). Reinwardtia 21(1): 13‒17. — Canthiumera glabra var. laxiflora (Rubiaceae: Vanguerieae), a new variety from Java and Sumatra is described. The new variety differs from the typical variety in having laxly branched inflorescences and is restricted to south Sumatra (Lampung) and southwestern Java.
NEPENTHES HARAUENSIS, A NEW SPECIES OF NEPENTHACEAE FROM WEST SUMATRA Hernawati Hernawati; Robi Satria; Ch'ien C. Lee
Reinwardtia Vol. 21 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v21i1.4306

Abstract

HERNAWATI, SATRIA, R. & LEE, C. C. 2022. Nepenthes harauensis, a new species of Nepenthaceae from West Sumatra. Reinwardtia 21(1): 19‒23. — A new species of Nepenthes (Nepenthaceae) from the Harau region of West Sumatra is described as Nepenthes harauensis Hernawati, R.Satria & Chi.C.Lee. This species shares specific characteristics with both N. bongso and N. singalana but is unique in its thickly coriaceous and petiolate leaves, which are elliptic-oblong and have a distinctly peltate tendril insertion.
LIGHT PREFERENCES IN TWO LANDSCAPE MANAGEMENTS AND ONTOGENIC LIGHT REQUIREMENTS OF TERRESTRIAL FERNS IN KEBUN RAYA BATURRADEN, CENTRAL JAVA Agung Sedayu; Rahadian Ajeng Saraswati; Yuli Puji Astuti
Reinwardtia Vol. 21 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v21i1.4265

Abstract

SEDAYU, A., SARASWATI, R. A. & ASTUTI, Y. P. 2022. Light preferences in two landscape managements and ontogenic light requirements of terrestrial ferns in Kebun Raya Baturraden, Central Java. Reinwardtia 21(1): 25–33. — Human management on landscapes influences environmental requirements including solar irradiation, which may affect fern establishment in different age classes. Two contrasting terrestrial fern communities were inspected in Kebun Raya Baturraden, Central Java; the first thrives among the garden (collection) area, representing the well managed area, and the latter living on the less managed area closest to a natural forest remnant. We found 78.7% species living exclusively in either landscape type; only 21% were shared on both, indicating a light preference among ferns and lycophytes. The four most common species (out of 32 fern and lycophyte species), Cyclosorus heterocarpus, Selaginella ornata, Nephrolepis biserrata, and Sphaerostephanos arbuscula in three different age classes and under gradient canopy openness were surveyed. Statistical test on the canopy openness of individuals of S. ornata and N. biserrata showed that three age categories used significantly different canopy openness, which is not the case for C. heterocarpus and S. arbuscula. It showed that some ferns and lycophytes ontogenically have gradual requirements on light exposure, while others are able to live in wide range of light exposure. This implies that in terms of wild species management, including ferns, the Baturraden gardens landscape management must be directed toward the ecological understanding of species of interest for Botanical Gardens and conservation
A NEW SPECIES OF MUK IA (CUCURBITACEAE) FROM SUMBA ISLAND, INDONESIA Mentari Putri Pratami; Tatik Chikmawati; Rugayah Rugayah
Reinwardtia Vol. 21 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v21i1.4374

Abstract

PRATAMI, M. P., CHIKMAWATI, T. & RUGAYAH. 2022. A new species of Mukia (Cucurbitaceae) from Sumba Island, Indonesia. Reinwardtia 21(1): 35‒40. — Mukia sumbensis Pratami is described and illustrated as well as compared with its closely related species M. maderaspatana (L.) M.Roem. and M. leiosperma (Wight & Arn.) Wight. It differs in its tendril size, stem diameter, petiole hairiness, midrib indumentum on upper leaf surface, as well as in shape, margin, and surface of seed. Anatomically the leaf of the new species has two palisade layers, unlike the other two species which have only one layer.
Front Cover Reinwardtia Vol. 21, No 1 (2022) Editor
Reinwardtia Vol. 21 No. 1 (2022)
Publisher : BRIN Publishing (Penerbit BRIN)

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