Nina Ratna Djuita
Departemen Biologi , Fakultas Matematika Dan Ilmu Pengetahuan Alam, Institut Pertanian Bogor, Kampus Dramaga, Bogor 16680

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Diversity and Distribution Patterns of Epiphytic Orchid in the Nirmala Tea Plantation, Bogor West Java Nurul Aini; Tatik Chikmawati; Sulistijorini Sulistijorini; Nina Ratna Djuita; Nunik Sri Ariyanti
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 1 (2022): April 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i1.35076

Abstract

Tea plantations can provide microclimate conditions for many epiphytic species, including orchids, but information on their diversity is not yet available. Epiphytic orchid diversity study has been carried out at the Nirmala Tea Plantation, Bogor, West Java. The main objective of this study was to reveal the diversity of epiphytic orchids in the Nirmala Tea Plantation. The data were obtained by vegetation analysis using the purposive sampling method by making 54 plots sized 5 x 5m2 at two different altitudes, 1050 and 1500 masl. The quantitative data were analyzed by calculating the critical value and morisita indices. The correlation between epiphytic orchid and microclimate variables was processed using Spearman bivariate correlation, performed using Canonical Correspondence Analysis. A total of 15 epiphytic orchids were found at an altitude of 1050 m asl and 10 species of epiphytic orchids at an altitude of 1500 m asl. Seven species, Agrostophyllum longifolium Rchb.f., Appendicula reflexa Blume, Bulbophyllum sp.2, Dendrochilum sp., Eria sp.1, Flickingeria sp, Pholidota carnea Lindl, were found at both altitudes. The diversity of epiphytic orchids is affected by altitude, light intensity, and wind speed. The distribution pattern of epiphytic orchids in Nirmala Tea Plantation is clumped. The results of this study report the diversity of orchids grown in tea plantations for the first time. This information is helpful for the cultivation and conservation of orchid diversity in the future.
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.
Struktur Sekretori pada Physalis angulata sebagai Tumbuhan Obat Evi Muliyah; Dorly Dorly; Nina Ratna Djuita
BIO-SAINS : Jurnal Ilmiah Biologi Vol 1 No 2 (2022)
Publisher : Fakultas Sains dan Teknologi, Universitas Islam As-Syafi'iyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6084/m9.figshare.23564679

Abstract

Physalis angulata merupakan suku Solanaceae yang dapat digunakan sebagai tumbuhan obat. Penelitian ini bertujuan untuk mengidentifikasi struktur sekretori daun dan batang P. angulata. Studi histologi struktur sekretori daun dan batang P. angulata telah dilakukan. P. angulata memiliki struktur sekretori berupa trikoma. Trikoma tersebut merupakan trikoma kelenjar kapitat multiselular yang terdiri atas sel tangkai dan sel kepala. Trikoma tersebut tersebar pada bagian epidermis daun dan batang. Ukuran sel kepala dan tangkai trikoma bervariasi. Kerapatan trikoma tertinggi ditemukan pada epidermis batang.
Diversitas dan Komposisi Flora Paku (Pteridophyta) di Perkebunan Teh Nirmala Citalahab, Kecamatan Kabandungan, Sukabumi, Jawa Barat: Diversity and Composition of Pteridophytes at Nirmala Citalahab Tea Plantation, Kabandungan District, Sukabumi, West Java Irawan, Afri; Maulana, Lana; Djuita, Nina Ratna; Ariyanti, Nunik Sri; Chikmawati, Tatik
Jurnal Sumberdaya Hayati Vol. 10 No. 3 (2024): 2024
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.10.3.128-135

Abstract

Pteridophytes are able to live in a variety of habitats resulting in high species diversity. However, in monoculture vegetation such as tea plantations, species diversity can be reduced. This study aimed to compare the composition of the pteridophytes on the edge of the main road and the area in the tea garden at the Nirmala Tea Plantation, Kabandungan District, Sukabumi, West Java. Samples were collected using the exploratory method, then identified and observed for their morphological characteristics, and then the data were analyzed descriptively. The diversity of pteridophytes in the tea garden area (18 species) was lower than the main roadside tea plantation (25 species). Some species in the tea plantations were only found in the tea garden area (7 species) or on the side of the main roadside (14), and there were also species found in both locations (11 species). Pteridophytes in the study area is dominated by terrestrial ferns and the Polypodiaceae family. Soil moisture and wind speed are more influential factors on the diversity of pteridophytes than other abiotic factors measured. This result is new information on the diversity of fern in the Tea Plantation.
Struktur Sekretori pada Physalis angulata sebagai Tumbuhan Obat Muliyah, Evi; Dorly, Dorly; Djuita, Nina Ratna
BIO-SAINS : Jurnal Ilmiah Biologi Vol 2 No 1 (2022)
Publisher : Fakultas Sains dan Teknologi, Universitas Islam As-Syafi'iyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34005/bio-sains.v1i2.1797

Abstract

Physalis angulata merupakan suku Solanaceae yang dapat digunakan sebagai tumbuhan obat. Penelitian ini bertujuan untuk mengidentifikasi struktur sekretori daun dan batang P. angulata. Studi histologi struktur sekretori daun dan batang P. angulata telah dilakukan. P. angulata memiliki struktur sekretori berupa trikoma. Trikoma tersebut merupakan trikoma kelenjar kapitat multiselular yang terdiri atas sel tangkai dan sel kepala. Trikoma tersebut tersebar pada bagian epidermis daun dan batang. Ukuran sel kepala dan tangkai trikoma bervariasi. Kerapatan trikoma tertinggi ditemukan pada epidermis batang.
Kultur in vitro pisang (Musa paradisiaca L.) cv. Kepok Merah untuk mikropropagasi cepat [In vitro culture of banana (Musa paradisiaca) cv. Kepok Merah for rapid micropropagation] Efah FITRAMALA; Eva KHAERUNNISA; Nina Ratna Djuita Ratna DJUITA; Hadi SUNARSO; Diah RATNADEWI
Menara Perkebunan Vol. 84 No. 2 (2016): 84 (2), 2016
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v84i2.221

Abstract

 Banana (Musa paradisiaca L) cv. Kepok Merah has a high commercial value as it is used in food industries such as banana chip. Besides, Kepok Merah contains high B-complex vitamins that serve in energy metabolism and  in the development of infant brain. The establishment of industrial plantations of this plant has been restricted by the lack of planting materials. This research aimed at ameliorating the capacity of plantlets multiplication up to rooting of this banana in a rapid way through in vitro multiplication techniques. Murashige and Skoog (MS) and Woody Plant (WP) media were used as the basic media. For the initiation stage, the media was fortified with 0.2 mg/L IAA and two levels of BA at 3 and 5 mg/L.  For shoot multiplication, the concentrations of IAA as well as BA were increased. For rooting, 1 mg/L NAA or IBA was applied. The observations demonstrated that for shoots initiation, both basic media performed good results when enriched with 0.2 mg/L IAA and 5 mg/L BA. The highest rate of shoots multiplication at 6 – 17 shoots per explant, was obtained on MS medium added with 0.5 mg/L IAA and 5 mg/L BA.  NAA at 1 mg/L in MS medium produced more rooted plantlets, 3 – 16 roots per plantlet, than those of other treatments. [Keywords: Musa paradisiaca cv. Kepok Merah, in vitro micropropagation, scalps.]AbstrakPisang (Musa paradisiaca L.) kultivar Kepok Merah memiliki nilai komersial yang cukup tinggi yaitu sebagai bahan dalam industri pembuatan keripik pisang. Selain itu, pisang Kepok Merah memiliki kandungan vitamin B kompleks cukup tinggi untuk membantu produksi energi dan pembentukan sel-sel otak pada bayi. Pertanaman pisang ini dalam skala industri terkendala oleh kurangnya ketersediaan sumber benih. Teknik kultur jaringan diharapkan dapat menghasilkan benih secara massal dalam waktu yang relatif singkat. Tujuan dari penelitian ini adalah meningkatkan keberhasilan multiplikasi tunas in vitro hingga pengakaran tanaman pisang Kepok Merah secara cepat. Pada tahap inisiasi tunas digunakan media dasar Murashige and Skoog (MS) dan Woody Plant (WP), ke dalam media dasar tersebut ditambahkan IAA 0,2 mg/L dan 2 taraf BA yaitu 3 dan 5 mg/L. Multiplikasi tunas dilakukan pada media dasar yang sama namun dengan taraf konsentrasi IAA serta BA yang ditingkatkan. Tahap perakaran menggunakan media dasar MS dan WP dengan auksin NAA 1 mg/L atau IBA 1 mg/L. Hasil penelitian menunjukkan bahwa untuk inisiasi tunas, media MS dan WP yang diperkaya dengan IAA 0,2 mg/L dan BA 5 mg/L   sama baiknya. Untuk  multiplikasi  tunas,   media  MS dengan IAA 0,5 mg/L   yang dikombinasikan dengan BA 5 mg/L   memberikan jumlah tunas paling banyak, yaitu 6 – 17 tunas per eksplan, dan pertumbuhannyapun lebih baik. Pemberian  NAA 1 mg/L pada media MS dapat memberikan lebih banyak tunas yang berakar, dengan jumlah akar 3 – 16 per planlet.  [Kata kunci: Musa paradisiaca cv. Kepok Merah, mikropropagasi in vitro, nodul meristematik.]
Melissopalynological Analysis Revealed a Higher Pollen Diversity in Stingless Bees than in Honey Bees Sayusti, Tiara; Raffiudin, Rika; Djuita, Nina Ratna; Perwitasari-Farajallah, Dyah; Batubara, Irmanida; Priawandiputra, Windra; Sitompul, Rahmadi; Jahnk, Svea Lina; Behling, Hermann
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.196-203

Abstract

Identifying floral resources used by honey bees and stingless bees is essential for sustainable beekeeping and understanding pollination ecology. This study compared the diversity of floral resources utilized by the honey bee Apis cerana and stingless bees Geniotrigona thoracica and Heterotrigona itama based on pollen in honey. Bee colonies were in the same Flora Nauli Beekeeping area, Pematang Siantar, North Sumatra, Indonesia, ensuring equal access to similar surrounding floral resources. Honey samples were collected, and pollen grains were extracted, acetolysed, and analyzed by counting 1,200 grains to determine frequency classes. Pollen diversity was calculated using the Shannon–Wiener index (H′). Stingless bee honey contained more diverse pollen than A. cerana, which only contained pollen from the Arecaceae family. Heterotrigona itama and G. thoracica honey contained pollen from 20 and 11 plant families, respectively. Each species had a distinct predominant pollen type (>45%): Cocos nucifera (A. cerana), Sapotaceae type (G. thoracica), and Casuarinaceae type (H. itama). A higher pollen diversity index was also observed in H. itama (1.05-1.83) than in G. thoracica (0.34–1.64) and A. cerana (0.66). These results indicate that stingless bees are more generalist than honey bees, highlighting their ecological role in supporting pollination networks in tropical agroecosystems.
Keragaman Serbuk Sari Pada Tumbuhan Legum di Kampus IPB, Dramaga, Bogor Brilyanita, Tiarana; Ariyanti, Nunik Sri; Djuita, Nina Ratna
Al-Kauniyah: Jurnal Biologi Vol. 17 No. 2 (2024): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v17i2.29846

Abstract

AbstrakMorfologi serbuk sari dapat dipakai untuk identifikasi tumbuhan, sumber bukti taksonomi, dan diterapkan dalam banyak disiplin ilmu. Penelitian ini bertujuan untuk menggambarkan ciri morfologi serbuk sari yang berasal dari tumbuhan legum. Sampel serbuk sari diperoleh dari bunga yang dikoleksi di area kampus. Koleksi bunga dilakukan dengan metode jelajah di kawasan kampus IPB, Dramaga. Sampel serbuk sari yang akan diamati dibuat dengan metode asetolisis. Pengukuran morfologi polen dihitung berdasarkan sumbu polar dan ekuatorial dalam skala mikrometer. Ciri morfologi serbuk sari yang diteliti meliputi bentuk, unit serbuk sari, tipe aperture, ukuran, indeks P/E, dan ornamentasi eksin. Serbuk sari diamati dengan mikroskop majemuk Olympus (CX-33) yang dilengkapi kamera indomikro. Hasil penelitian menunjukkan bahwa bentuk serbuk sari pada legum ada dua macam yaitu circular dan circular oval. Ukuran serbuk sari beragam dari sangat kecil sampai sangat besar. Serbuk sari memiliki indeks P/E > 1,00. Tipe aperture meliputi monoporate, triporate, tetraporate, tricolpate, dan tricolporate. Ornamentasi eksin yang dijumpai berupa scabrate, reticulate, dan psilate. Serbuk sari yang diamati pada penelitian ini menggambarkan morfologi yang khas sehingga dapat dijadikan karakter tambahan dalam mengidentifikasi tumbuhan legum.AbstractPollen morphology can be usefull for plant identification, sources of taxonomic evidence, and apply in many disciplines. This study aimed to describe the morphological characteristics of pollen from legume plants. Pollen samples were obtained from flowers collected in the campus area. The collection of flowers was carried out using the roaming method in the area of the IPB campus, Dramaga. The pollen sample to be observed was made by the acetolysis method. Pollen morphology measurements were calculated based on the polar and equatorial axes on the micrometer scale. The morphological characteristics of the pollen studied included pollen shape, pollen unit, aperture type, size, P/E index, and exine ornamentation. Pollen grains were observed with an Olympus compound microscope (CX-33) equipped with an indomicro camera. The results showed that there are two forms of pollen grains, namely circular and circular oval. Pollen sizes vary from very small to very large. Pollen has a P/E index > 1.00. The aperture types include monoporate, triporate, tetraporate, tricolpate, and tricolporate. The exine ornamentation found is scabrate, reticulate, and psilate. The pollen observed in this study shows a distinctive morphology so that it can be used as an additional character in identifying legume plant. 
Insect Diversity and Visitation Patterns on Nephelium ramboutan-ake in Mekarsari, Bogor Junaidi, Muhamad; Chikmawati, Tatik; Atmowidi, Tri; Djuita, Nina Ratna
Jurnal Biodjati Vol 10 No 2 (2025): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v10i2.34001

Abstract

Information on flower-visiting insects, especially pollinators of the pulasan plant (Nephelium ramboutan-ake), a species that tends to cross-pollinate, is essential for increasing fruit production. Unfortunately, there is minimal information on flower-visiting insects associated with pulasan. This research aimed to study the diversity and abundance of visiting insects on pulasan in the Mekarsari Fruit Garden, Bogor. Observations of insects were conducted using the fixed sample method, with samples taken every 20 minutes through direct observation from 06:00 am to 02:00 pm during the flowering period. Results showed that 24 insect species, belonging to 24 genera across six orders, visited the pulasan, with the order Diptera being the most dominant among the visiting insects. The potential insect species as pollinators of pulasan were Lathyrophthalmus sp. and Amata huebneri. Knowledge about flower-visiting insects plays an important role in the conservation of insects—especially pollinators—as well as the pulasan plant, a local species.
Diversity and Epidermal Characteristic of Lauraceae Leaf in Two Forest Locations, Bogor Regency, West Java fadhila, Nurul amalia; Sulistijorini, Sulistijorini; Djuita, Nina Ratna
Jurnal Biodjati Vol 8 No 1 (2023): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v8i1.24406

Abstract

Lauraceae is a group of tropical plants with a wide distribution. The abundance and species richness of the Lauraceae family includes the under to the upper canopy of the forest. The Lauraceae family can be utilized in various sectors, especially economically. Limiting characters as a significance in the Lauraceae classification was needed to provide additional information regarding taxon grouping. This research aimed to study epidermal characteristics, leaf venation variations, and the diversity of Lauraceae species under different forest environmental conditions. The research procedure involved: collecting ecological field data and morphological identification using a purposive sampling method based on the presence of species. Soil sampling and environmental microclimate were measured on each plot. The anatomical process was carried out by recording characters. Correlation between environmental factors and plant targets used canonical correspondence analysis. The kinship between members of Lauraceae was expressed in a dendrogram. The result of this study showed that Lauraceae could live at various elevations. The analysis data indicated differences in environmental factors that affect the existence of Lauraceae species. Leaf venation studies support clustering in the family using characters such as primary, secondary, tertiary veins, and areola. Observation of leaf venation can be used as a taxonomic significance in the family Lauraceae. Epidermal cell walls in leaf samples are straight, curved shallow, deep, and sharp. Other characters that can be found are anomocytic, laterocytic, and brachyparasitic types of stomata, with stellate and glandless trichomes The anatomical dendrogram separated Lauraceae into clusters on a similarity coefficient scale.