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All Journal Jurnal Hortikultura Indonesia (JHI) Bumi Lestari
Ni Putu Adriani Astiti
Jurusan Biologi, FMIPA, Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Energy Environmental Science

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Penempelan Teritip (Arthropoda) pada Beberapa Jenis Mangrove di Kawasan TAHURA Ngurah Rai Bali Juniartini, Nyoman Sweet; Watiniasih, Ni Luh; Astiti, Ni Putu Adriani; Wiradana, Putu Angga
Bumi Lestari Journal of Environment Vol 24 No 1 (2024)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2024.v24.i01.p01

Abstract

Mangrove ecosystems are able to support biological and ecological life cycles and provide welfare for coastal communities. Pest outbreaks that attack seedlings to mangrove trees often cause ecological losses throughout the TAHURA Ngurah Rai Bali area. The ecological interactions of barnacle pest species in mangrove ecosystems are very complex and highly detailed studies. There is empirical evidence that the attachment of barnacles is strongly associated with allelochemical compounds produced by mangroves. This study aims to inventory the attachment of barnacles (arthropods) to several types of mangroves in the TAHURA Ngurah Rai area of Bali. This study used a purposive sampling method to pay for the location of the observations. Quadrant transects were used to organize the classification of the mangrove plots, barnacle densities being calculated for each transect. The density of barnacles was calculated on the number of barnacles attached to the mangrove plants, then recorded the types of plants attached, types of barnacles, types of planting and the number of individuals for each mangrove classification. The study showed that barnacles planted most of the mangrove seedlings at all stations, while the classification of tree plots only had barnacles attached at station 3. The number of attachments of Amphibalanus sp. the highest was found at station 3 of the R. mucronata tiller classification of 881 individuals, while no attachment of barnacles was found at all stations for S. alba mangroves. Overall, the attachment of barnacles was higher in R. mucronata tillers and had the potential to reduce their growth productivity in the field. Efforts to control barnacles really need to be done to increase the success of planting mangroves in TAHURA Ngurah Rai, Bali.
Inisiasi Kalus Bangle (Zingiber purpureum Roscoe) pada Beberapa Kombinasi 2.4-D dan Kinetin Astarini, Ida Ayu; Astiti, Ni Putu Adriani; Tarigan, Swary Dwi Suherna
Jurnal Hortikultura Indonesia (JHI) Vol. 14 No. 2 (2023): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.14.2.93-99

Abstract

Bangle (Zingiber purpureum Roscoe) termasuk keluarga Zingiberaceae yang dimanfaatkan sebagai tanaman obat. Penelitian bertujuan untuk mengetahui pengaruh 2.4-D dan kinetin pada inisiasi kalus bangle. Penelitian dilaksanakan di Laboratorium Kultur Jaringan Tumbuhan, Prodi Biologi, Fakultas MIPA, Universitas Udayana dari bulan Februari hingga bulan Mei 2023. Desain percobaan yaitu Rancangan Acak Lengkap (RAL) dua faktor dan lima ulangan. Faktor pertama konsentrasi 2.4-D (0, 1 dan 2 ppm) dan faktor kedua konsentrasi kinetin (0, 0.5 dan 1 ppm). Variabel yang diamati meliputi waktu inisiasi kalus, persentase pembentukan kalus, dan morfologi kalus. Hasil penelitian menunjukkan 1 ppm 2.4-D - 0.5 ppm kinetin menghasilkan waktu inisiasi kalus tercepat (10.8 HST) dan persentase pembentukan kalus tertinggi (100%), sementara 1 ppm 2.4-D - 0.5 ppm kinetin dan 2 ppm 2.4-D - 0.5 ppm kinetin menghasilkan morfologi kalus yang baik dan embriogenik (warna putih dengan tekstur remah). Kata Kunci: auksin, sitokinin, tanaman obat, Zingiberaceae
Co-Authors IDA AYU ASTARINI Juniartini, Nyoman Sweet Ni Luh Watiniasih Putu Angga Wiradana Tarigan, Swary Dwi Suherna