Article Per Year (5 Year)
p-Index From 2019 - 2024
1.908
P-Index
This Author published in this journals
All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Bioedukasi Buletin Kebun Raya JSDH Journal of Tropical Biodiversity and Biotechnology Bioedukasi: Jurnal Pendidikan Biologi Menara Perkebunan Floribunda Proceeding Biology Education Conference Makara Journal of Science
Nina Ratna Djuita
IPB University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health

Published : 24 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 24 Documents
Search

 1   2   3 
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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
Autecology of Castanopsis argentea (Blume) A.DC. in Telaga Warna Nature Reserve Area, Bogor Regency Dianti Mayadika Putri; Sulistijorini Sulistijorini; Nina Ratna Djuita
Journal of Tropical Biodiversity and Biotechnology Vol 7, No 3 (2022): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.69903

Abstract

The red list of the International Union for the Conservation of Nature and Natural Resources (IUCN) reported Castanopsis argentea as an endangered species. Studies about autecology on its natural habitat become important to perform species conservation. This study aimed to analyze the population structure, distribution pattern, and environmental factors that influence the presence of C. argentea in the Telaga Warna Nature Reserve. Data was collected in September 2020 by making 21 plots with a single plot. The purposive sampling method was used based on C. argentea representatives to determine plot location. Measurement of environmental factors, including soil sampling was carried out on each plot. Population structure was analyzed based on plant density, and Morisita index determined the distribution pattern. Environmental data were analyzed using PCA with Minitab 19 programs. Our field observation showed that C. argentea seedling has the highest density (1071 ind/ha) and decreased in the mature phase. C. argentea was found to have a clumped distribution pattern with an Id value of 1.03. PCA analysis showed differences in environmental factors that were thought to influence the presence of C. argentea individuals in four growth phases. The highest population structure of C. argentea was found in the growth phase of seedlings and saplings at an altitude of 1400 m asl. The spread population distribution of C. argentea was clumped. The influences of environmental variables on the existence of C. argentea were Mg, Ca, CEC, pH, and soil moisture. 
Evaluation of Pulasan (Nephelium ramboutan-ake) Genetic Diversity in Bogor, West Java, Using Microsatellite Markers Amelia Luisyane Puhili; Tatik Chikmawati; Nina Ratna Djuita
Journal of Tropical Life Science Vol. 6 No. 3 (2016)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.06.03.09

Abstract

Pulasan (Nephelium ramboutan-ake (Labill.) Leenh) fruit is highly similar to rambutan rapiah (Nephelium lappaceum) fruit with ovate shape, sweet and sour fresh taste, but it has a thick rind. The diversity of pulasan is little informed including in Bogor. The objective of this study was to analyze the genetic diversity of pulasan from Bogor revealed by microsatellite marker. The DNA of 63 individuals from 10 populations of pulasan were extracted using CTAB method and amplified using two primer sets, LMLY6 (GA)9(CA)2(GA)4 dan LMLY12 (CT)11. DNA amplification product was visualized and arranged in a matrix of binary data then analyzed the value of the number of different alleles (Na), the number of effective alleles (Ne), Shannon information index (I), heterozygosity (He), and the percentage of polymorphism (PLP). The results of the analysis showed the highest genetic diversity was found in North Bogor (He=0.313). The genetic diversity within a population (61%) was higher than that among populations (39%). A dendrogram was constructed using the Unweighted Pair Group Method with arithmetic Mean (UPGMA). The similarity index ranged from 52 to 100% that means there are close relationships among individuals. Cluster analyses grouped some individuals originated from different locations in the same group. The levels of heterozygosity within a population was determined by the history of each individual in a population.
Variasi Sisik Tumbuhan Paku Terestrial di Kampus IPB, Dramaga, Bogor : Variations of Terrestrial Scale Fern on The Campus of IPB University, Dramaga, Bogor Siti Halimatussadiah; Nina Ratna Djuita; Tatik Chikmawati Chikmawati
Jurnal Sumberdaya Hayati Vol. 9 No. 3 (2023): 2023
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.9.3.109-118

Abstract

IPB Dramaga campus has high biodiversity, one of which is terrestrial ferns. Ferns have scales or hairs that cover the rhizome, petiole and leaf blade. The characteristic of scales can be used in the identification of fern species. The aim of this study was to determine the morphological diversity of terrestrial fern scales collected from the IPB Dramaga campus. The fern scales was observed under a light microscope connected to an indomicro and the density was calculated. The rhizome and petiole scales found in the form of lanceolate, ovate, subulate, linear, and reniform. The tip of the scales varies from thick, and needle-like, thin, and thick. The edges of the scales vary, namely threaded, flat, or banded. The attachments of the base of the scales found were, peltate. pseudopeltate, and basifix. The color of the scales varies from transparent, yellow, light brown, fawn, and dark brown. The scale density ranged from 0.6 to 21.3/mm2. The Pteridaceae have more characteristics in common between their genera than the other two family, but these similarities cannot be used for taxonomic identification and classification, because they are not specific for each genus.
Co-Authors Abyan Setya Priambudi Afri Irawan Alex Hartana ALEX HARTANA Alex Hartana Alex Hartana Alex Hartana Alex Hartana Alex Hartana Amelia Luisyane Puhili Arin Ulfiana Mubarokah Siagian Christyne SPLS Napitu Diah Ratnadewi Diah Virsa Hastuti Dianti Mayadika Putri Dorly Dorly Dorly, Efah FITRAMALA Eva KHAERUNNISA Fibo Adhitya Hadi SUNARSO Ibna Hayati Lana Maulana Muhammad Jusuf NUNIK SRI ARIYANTI Nurul Aini Puhili, Amelia Luisyane Qothrunnada - Sungkar RIKA RAFFIUDIN Rizkia Adhatirana Siti Halimatussadiah Sulistijorini Sulistijorini Tatik - Chikmawati TATIK CHIKMAWATI Tatik Chikmawati Tatik Chikmawati Chikmawati Taufikurrahman Nasution Tila Mardhatillah Tira Tahnia Titien Ngatinem Praptosuwiryo