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Ivandini Tribidasari A.
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Makara Journal of Science
Published by Universitas Indonesia
ISSN : 23391995     EISSN : 23560851     DOI : https://doi.org/10.7454/mss.v26i2.xxx
Core Subject :
Makara Journal of Science publishes original research or theoretical papers, notes, and minireviews on new knowledge and research or research applications on current issues in basic sciences, namely: Material Sciences (including: physics, biology, and chemistry); Biochemistry, Genetics, and Molecular Biology (including: microbiology, physiology, ecology, taxonomy and evolution); and Biotechnology.
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Articles 3 Documents
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Search results for , issue "Vol. 21, No. 2" : 3 Documents clear
Morphological Evaluationof Tomato (Solanum lycopersicumLinn.) Cultivars Chime, Anthonia Odinita; Aiwansoba, Raymond Osas; Osawaru, Moses Edwin; Ogwu, Matthew Chidozie
Makara Journal of Science Vol. 21, No. 2
Publisher : UI Scholars Hub

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Abstract

Tomato (Solanum lycopersicumLinn.) is widely cultivated andis economically beneficial. Tomatocultivars were obtained from traditional agriculture systems, and their morphological characters were evaluated. The cultivars included Pepper tomato [ED/CH/01], Edo local [ED/CH/02], Golden tomato [ED/CH/03]and Derica tomato [ED/CH/04]. Results of the principal component analyses of 27 morphological characters indicated that two characters accounted for 94.65 % of the observed variations. Scatter plots suggested good tendency of grouping for the four accessions. In the dendrogram, two clusters were formed withED/CH/01, ED/CH/02 and ED/CH/03 grouped together whereas ED/CH/04 clustered separately.The clustering pattern implicated a common origin and/or gene pool for the cultivars. Cultivars ED/CH/01, ED/CH/03 and ED/CH/04 showed determinate growth type, while ED/CH/02 showed a semi-determinate growth pattern. Further, in terms of plant size, ED/CH/01 and ED/CH/02 were intermediate, while ED/CH/03 and ED/CH/04 were large. The characteristics of the flower and fruits exhibited diversity in terms of the corolla color, style, shape, fruit size at maturity, exterior color of the mature fruit, fruit shoulder, fruit cross-sectional shape, and fruitblossom end shape. These cultivars collectively possess characteristics that can be used by plant breeders. Werecommend that further characterization using molecular techniques as well as conservation attention for these local germplasms should be conducted.
Characteristics and Ideotype Formulation of Pulasan (Nephelium ramboutan-ake) Fruit Landrace from West Java, Indonesia Djuita, Nina Ratna; Hartana, Alex; Chikmawati, Tatik; Dorly,
Makara Journal of Science Vol. 21, No. 2
Publisher : UI Scholars Hub

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Abstract

Pulasan (Nephelium ramboutan-ake) is a unique tropical fruit, but its morphological variations have not been well characterized. This study was conducted to obtain data on the characteristics of pulasan landrace in West Java, Indonesia, and to formulate the ideotype of pulasan with superior characteristics, such as high fruit weight, sweet taste, and thick and easily peelable aril from the seed. Based on the descriptors of rambutan, 61 fruit variants were observed. The results showed that the average fruit weight was 46.0 g, with the highest at 103.5 g and the lowest at 23.1 g. The °Brix level variation of pulasan fruit was 16.8–29.6, and its vitamin C content was 14.0–24.0 mg/100 g. Five variants with superior fruit characters were identified among the sample collections used in the study
Study of Heavy Metal Distribution and Hydrodynamic Simulation in Green Mussel Culture Net, Cilincing Water-Jakarta Bay Koropitan, Alan Frendy; Cordova, Muhammad Reza
Makara Journal of Science Vol. 21, No. 2
Publisher : UI Scholars Hub

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Abstract

This study aimed to investigate the heavy metals distribution inthesurrounding area of green mussel culture net,Cilincing water, Jakarta Bay,and its distribution behavior. The water sampling was carried out during the ebb tide. The heavy metal concentration was then measured by using atomic absorption spectroscopy (AAS). In order to understand the water circulation behavior related to heavy metal distribution in the study area, thePrinceton Ocean Model was applied, and the model design was developed based ona scenario ofanopen canal in theeastern and western sides, while the center canal wasplaced withnet cages in the water column resembling the green mussel culture net. The observed heavy metal distribution showed an intensified concentration in the green mussel culture location. The observed water current also showed a reduced velocity in the location. The modeling approach could explain the water circulation behavior in response to the presence of net units in the water column. In this case, the density of net units for green mussel culture potentially produced shear stress in the water column, which affected the flow pattern and the distribution of heavy metals. Therefore, the existence of green mussel culture nets has a potential to become a trap for pollutant distribution in the water.

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